A STUDY OF EMISSIONS AND COST MINIMIZATION FOR THE NEW YORK STATE POWER SYSTEM AND A MAPPING BETWEEN PTID AND EIA FACILITY CODES

A STUDY OF EMISSIONS AND COST MINIMIZATION FOR THE NEW YORK STATE POWER SYSTEM AND A MAPPING BETWEEN PTID AND EIA FACILITY CODES A Design Project Report Presented to the Engineering Division of the Graduate School Of Cornell University In Partial Fulfillment of the Requirements for the Degree of Master of Engineering (Electrical) By Abigail J. Krich Project Advisor: Professor Robert J. Thomas Degree Date: August 2006 1

Abstract Master of Electrical Engineering Program Cornell University Design Project Report Project Title: A STUDY OF EMISSIONS AND COST MINIMIZATION FOR THE NEW YORK STATE POWER SYSTEM AND A MAPPING BETWEEN PTID AND EIA FACILITY CODES Author: Abigail J. Krich Abstract: As concerns over acid rain, global warming, and asthma are increasingly in the public eye, regulations on emissions reductions from electricity generation have become increasingly stringent. There are many methods for emissions reductions requiring capital expenditures and moderate to long lead times. There is also a method for immediate, capital-free reductions through a modified dispatching method that minimizes emissions, possibly while obeying certain cost constraints, rather than minimizing costs only while obeying certain emissions constraints. The New York Power System is explored in this project and a variety of plant data from publicly available and non-publicly available sources is compiled and used in preliminary attempts at different emissions minimization and economic dispatch methods for the State. The cost penalties for the various options and the emissions reductions that can e achieved are explored. Report Approved by Project Advisor: Date: 2

Table of Contents 1. The New York State Power System 2. Emissions 2.1. Carbon dioxide 2.2. Sulfur Dioxide 2.3. Nitrogen Oxides 2.4. Mercury 3. Intermittency of Renewable Generators 4. The Data Sets 4.1. FERC Form 715 Data from the NYISO 4.2. EPA s egrid 4.3. NYISO Load and Capacity Data 4.4. New York State Generator Data Provided by Professor Thomas 4.5. Master s of Engineering Design Project by Ivan Francisco Cabral Trujillo 4.6. Seams Model 4.7. TCC Auction Data 5. Data Quality control egrid 6. Estimating generator marginal costs 7. Mapping PTID to EIA Codes 8. Lambda Search on egrid Data 9. PowerWorld Software 10. PowerWorld Economic Dispatch Solutions 11. Conclusions 12. References List of Figures Figure 1 - New York State electricity generation by fuel type, 2005. Src: http://www.nyiso.com/public/company/about_us/index.jsp 3

Figure 2 - U.S. electricity generation by fuel type, 2004. Src: http://www.eia.doe.gov/cneaf/electricity/epa/figes2.html Figure 3 - Map showing zonal loads and interface flows in New York State. Src: http://www.nyiso.com/public/market_data/zone_maps.jsp Figure 4 - Real Time zonal locational based marginal pricing showing New York zones. Src: http://www.nyiso.com/public/market_data/zone_maps.jsp Figure 5 - Forecast zonal loads showing typical summer daily load profile. Src: http://www.nyiso.com/public/market_data/graphs.jsp Figure 6 - Net summer generator capacity from 1993 to 2004. Src: http://www.eia.doe.gov/cneaf/electricity/epa/epaxlfile2_1.xls Figure 7 - Planned nameplate capacity additions by fuel type from 2005 through 2009. Src: http://www.eia.doe.gov/cneaf/electricity/epa/epaxlfile2_4.xls Figure 8 - New York State NOx, SOx, and CO2 emissions contributions by fuel type in 2004. Src: http://www.eia.doe.gov/cneaf/electricity/epa/emission_state.xls Figure 9 - NYISO tie-line map and summary of seams project model data Figure 10 - Fuel costs as a percentage of electric utility operating costs. Src: http://www.eia.doe.gov/cneaf/electricity/epa/epaxlfile8_1.xls Figure 11 - Average fuel/total operation and maintenance expense ratio for major U.S. investor owned utilities in 2004. Src: http://www.eia.doe.gov/cneaf/electricity/epa/epaxlfile8_2.xls Figure 12 - Comparison of total cost for various loads, optimizations Figure 13 - Comparison of total CO2 emissions for various loads, optimizations Figure 14 - Comparison of total SO2 emissions for various loads, optimizations Figure 15 - Comparison of total NOx emissions for various loads, optimizations List of Tables Table 1 - Bus count and bus voltages from NYISO 10 year light load base case data file. Table 2 - Barrett plant data from various sources Table 3- Holtsville plant data from various sources Table 4 - Union Ave/Flynn station data from a variety of sources 4

Table 5 - Niagara County generator data from various sources Table 6 - Moses station data from various sources Table 7 - Gilboa station data from various sources Table 8 - Longlane and Feurabush generator data from various sources Table 9 - Independence station data from various sources Table 10 - Carr St station data from various sources Table 11 - JFK station data from various sources. The first PTID is from the PTID map file, the second is from the NYISO capacity report. Though they do not match, the generators appear to be the same. Table 12 - "Extra" generation in the seams model and its location Table 13 - Average fuel costs by fuel type calculated by two different methods Table 14 - PTID to EIA Code Map Table 15 - egrid generators sorted by calculated marginal cost. The yellow line shows the marginal unit for summer base load, the blue line for winter peak load, and the red line for summer peak load 5

1. The New York State Power System New York state is served by eight major New York Transmission Owners (NYTO s). They are Central Hudson Gas & Electric Corporation, Consolidated Edison Company of New York, Long Island Power Authority, New York Power Authority, New York state Electric and Gas Corporation, Niagara Mohawk -A National Grid Company, Orange & Rockland Utilities Inc., and Rochester Gas & Electric Corporation. When the State s power system was deregulated in the late 90 s, the previously vertically integrated utilities had to divest themselves of their generation assets. Now, the NYTO s own the power lines but the power itself comes from energy service companies which own the generation assets. To manage the deregulated system, Independent System Operators (ISO s) were sanctioned by the Federal Energy Regulatory Commission (FERC) for the purpose of managing the transmission component of the restructured power system. The ISO owns no generation, transmission, or load, and is thus an independent, unbiased body that can run the system fairly in theory. According to their website, the New York Independent System Operator (NYISO) exercises operational control over most of the State s transmission facilities to maintain short term reliability, administer the ISO Transmission Tariff and implement and operate New York s Open Access Same-Time Information System (OASIS). They were formed in 1998 when New York s electric power industry was restructured, formed out of what was then the New York Power Pool. The NYPP was initially created by New York s eight largest electric utilities following the Northeast Blackout of 1965 to reduce the probability of another major power outage. As numbers of non-utility generators grew due to FERC rulings, the NYPP made moves towards open, nondiscriminatory access to the transmission system by forming the NYISO. Their mission was to facilitate fair and open competition in the wholesale power market and create an electricity commodity market in which power is purchased and sold on the basis of competitive bidding. [1] The NYISO serves the state of New York, 47,225 square miles of territory with 19,160,000 people. The total load in 2004 was 160,209 GWh. It is a summer peaking 6

system with a summer record peak load of 32,075 MW in 2005 and a winter record peak load of 25,540 MW. The NYISO manages 10,775 miles of high voltage transmission lines at voltages of 115 kv, 138 kv, 230 kv, 345 kv, and 765 kv. They model over 335 generators in the State of New York feeding power into those lines and require 37,524 MW of installed capacity to operate the system reliably [1]. The fuel mix of generators in New York does not follow the U.S. norm of roughly half coal. Shown in Figure 1 and Figure 2 respectively are the New York and U.S. electricity generation breakdowns by fuel type. Nuclear and hydro both contribute to New York State s power significantly above the national average. Figure 1 - New York State electricity generation by fuel type, 2005. Src: http://www.nyiso.com/public/company/about_us/index.jsp 7

Figure 2 - U.S. electricity generation by fuel type, 2004. Src: http://www.eia.doe.gov/cneaf/electricity/epa/figes2.html The NYISO uses a hybrid nodal-zonal method for determining market prices for electricity. While generators are paid based on the locational based marginal price (LBMP) at their particular node, loads are charged the average nodal price in their zone. The NYISO has divided the state into 15 zones for the purposes of determining these zonal prices [10]. New York is also interesting in the distribution of the load and generation centers throughout the state. Figure 3 shows the zones the State s power system has been broken into along with the load and interface flows mid day on July 22, 2006. What can be seen is that over half of the State s demand is in the areas around New York City and Long Island. This puts a significant strain on the transmission system as the cheaper power produced Upstate is brought down to the city. The transmission lines bringing power downstate frequently become congested and cause significant nodal price differences between Upstate and Downstate. At the time this figure was created, the flow on the interface between Upstate NY and the ConEd region around New York City was 3 GW, almost the full load of Long Island. 8

Figure 3 - Map showing zonal loads and interface flows in New York State. Src: http://www.nyiso.com/public/market_data/zone_maps.jsp What this disparity leads to is significant price differences throughout the State. Figure 4 shows the real time zonal locational based marginal prices for the regions of the state. Long Island has the most expensive power at almost $80/MWh while the western region has a price just under $53. The congestion on the lines causes generators to be dispatched out of their economic order based on their location. Even if all the power for New York City and Long Island could be produced more cheaply in Western and Northern New York, due to limitations on transfer capacity, the City cannot utilize all of it but rather must turn on more expensive generators closer by that are connected to uncongested lines. What can also be seen in Figure 3 is the interfaces between New York State and the surrounding power systems. PJM to the south, ISO New England (ISONE) to the east, Hydro Quebec (HQ) to the North, and Ontario Independent Market Operator (IMO) to the West. 9

Figure 4 - Real Time zonal locational based marginal pricing showing New York zones. Src: http://www.nyiso.com/public/market_data/zone_maps.jsp The typical load pattern in New York is shown in Figure 5. For July 22, 2006 it shows the predicted load throughout the day for each of four zones of the State. While the load itself varies between zone, the pattern is typical. It shows load decreasing from about 9pm through 5am, increasing until about 11am, remaining stable and then slightly decreasing around 6pm with a small increase around 8pm. Even at the low point at night, there is still power being consumed, This is considered the base load and can be supplied by generators that produce power less expensively and do not change their output level easily. The generation needed to make up for the difference between daytime and nighttime load would be considered load following and is typically provided by generators that can change their output over a period of tens of minutes to an hour. The very high points of the load would be supplied by peaking generators. These are typically the most expensive and only run a small fraction of the time but are necessary to supply the load at peak times. If one were to look at the actual load, it would not appear as smooth a curve as this predicted load. The small variations and 10

quick changes would need to be supplied by regulating generators, or regulating services from generators that are already running. As there is no storage in the system, electricity supply must match demand or voltage and frequency instabilities will occur. Figure 5 - Forecast zonal loads showing typical summer daily load profile. Src: http://www.nyiso.com/public/market_data/graphs.jsp 2. Emissions The standard approach to reducing emissions is to clean the emissions out of the flue gases. This has an associated cost and varying level of effectiveness. An alternate approach is to build new power plants with lower emissions rates. Error! Reference source not found. and Figure 7 show the US net summer capacity by fuel type and the predicted capacity additions by fuel type. Though carbon emissions are a growing concern and it can be seen that coal plant capacity has decreased over the last few years, it is predicted that coal fired power plants will quickly resume being built again. Though it is not clear exactly how this prediction was made, our electricity demand keeps rising and coal is the most abundant domestic fossil fuel source. The State of New York is supporting development of a variety of renewable energy projects for this reason precisely. As the renewable energy generation is typically 11

more costly than traditional generation, there is again an additional cost associated with this method of reducing emissions. A third approach to emissions reduction would be to dispatch existing plants based on either an emissions cap or through an emissions minimization scheme. Rather than the standard method of dispatching plants based primarily on minimizing costs, this method would minimize emissions from plants while considering the same security and reliability constraints observed by the cost minimization dispatch. Because the generators are no longer being dispatched based on their economics, more expensive but cleaner generators will be turned on sooner and higher than they might have in the classic approach. This associated cost would be the cost penalty of reducing emissions in this manner. Of the three options, this last options would have the least lead time for implementation if the State of New York wanted to reduce emissions as quickly as possible. It is the only method that does not require new construction to implement. Later sections of this paper describe this method in further detail and its possible results for New York. Figure 6 - Net summer generator capacity from 1993 to 2004. Src: http://www.eia.doe.gov/cneaf/electricity/epa/epaxlfile2_1.xls 12

Figure 7 - Planned nameplate capacity additions by fuel type from 2005 through 2009. Src: http://www.eia.doe.gov/cneaf/electricity/epa/epaxlfile2_4.xls Figure 8 shows the contribution to three New York State emissions by fuel type. Each of these emissions is regulated and mitigated in a different manner. 13

Figure 8 - New York State NOx, SOx, and CO2 emissions contributions by fuel type in 2004. Src: http://www.eia.doe.gov/cneaf/electricity/epa/emission_state.xls 2.1 Carbon dioxide Though not currently regulated in the United States, the ratification of the Kyoto Protocol by other developed nations and the increasing concern about global climate change have led the electric power industry to include carbon dioxide emissions caps in many of their forecasts. Different fuels emit different levels of carbon dioxide. While coal used to produce electricity releases approximately 94.31 million metric tons of carbon dioxide per quadrillion Btu, petroleum emits roughly 62.75 and natural gas emits only 52.79 [2]. Even this is simplistic, as different types of coal have different compositions and thus lead to varying emissions rates. According to the EIA Annual Energy Report, carbon dioxide emissions for coal can range from 201 pounds per million BTU for Iowa Bituminous coal up to 218 for North Dakota Lignite coal [6]. The egrid database 14

accounts for the sourcing of fuel due to its reporting of MBtu and tons of emissions. Hydro, nuclear, and wind or solar clearly do not emit any carbon dioxide. 2.2 Sulfur Dioxide Both the Clean Air Interstate Rule (CAIR) and the Clean Air Act Ammendments of 1990 (CAA90) limit sulfur dioxide emissions in New York State. CAIR limits the annual nationwide SO2 emissions to 3.6 million tons beginning in 2010 and 2.5 million tons starting in 2015. Currently, generators must comply with CAAA90. The DOE assumes utilities will comply with the CAAA90 by retrofitting units with flue gas desulfurization equipment, transferring or purchasing sulfur emissions allowances, operating high sulfur coal units at a lower capacity utilization rate, or switching to lowsulfur fuels. Flue Gas Desulfurization units (FGD) are estimated to cost between $179/kW for a 700MW coal plant and $282/kW for a 300MW coal plant [2]. 2.3 Nitrogen Oxides EPA has developed a two-phase nitrogen oxide program, the first phase applied in 1996 and the second in 2000. Uncontrolled emissions rates for coal fired boilers is between 0.6 and 1.0 pounds NOx per million Btu. The new standards are 0.11 pounds per million Btu for conventional coal, 0.02 for advanced coal or combined cycle, and 0.08 for combustion turbines. In addition, the EPA has capped emissions in 22 Eastern and Midwestern states in the summer. New York has an emissions cap of 31.04 thousand tons per summer season. Various technologies are available to reduce NOx emissions. Examples would be advanced overfire air, selective catalytic reduction, and slagging. The amount that these are able to reduce NOx emissions are 30%, 70%, and 20% respectively. Selective catalytic reduction (SCR) can remove nitrogen oxides from flue gases at a cost of $92/kW for a 700MW plant and $116/kW for a 300MW plant. 15

2.4 Mercury The Clean Air Mercury Rule (CAMR) establishes a cap-and-trade program for mercury emissions. The regulation specifies a limit of 38 tons beginning in 2010 and 15 tons beginning in 2018. Equipment to remove mercury from flue gas is estimated to cost $4-$60 per kw of capacity depending upon the technique used [2]. 3. Intermittency of Renewable Generators Geothermal electricity generation has a high capacity factor similar to fossil fuel plants at 0.95, landfill gas follows at 0.90, and biomass follows behind at 0.83. All other renewables are intermittent by season or even by day, and cannot be scheduled in the same manner as traditional generators. Least-cost hydro facilities in the North West have capacity factors of 0.64, solar thermal plants have 0.31 capacity factors, excellent wind sites have capacity factors of approximately 0.44 and photovoltaic capacity factors hit a high around 0.21 [2]. Though there are efforts with the New York State Renewable Portfolio Standard to increase the fraction of electricity generated in New York by renewable energy sources to 25% by 2013, there are many operational hurdles that must be dealt with to achieve this. Intermittency and relatively low capacity factors for these generators is the main concern of the NYISO. 4. The Data Sets 4.1 FERC Form 715 Data from the NYISO Any transmission utility that operates integrated transmission facilities at or above 100kV must file form number 715 with the Federal Energy Regulatory Commission (FERC) on an annual basis. It provides information about potential transmission capacity and known constraints [7]. In addition to transmission maps and one-line diagrams FERC form 715 submissions include solved power flow base cases 16

that the utility would ordinarily use as the starting point for its transmission planning studies. The data contained in FERC form 715 is considered Critical Energy Infrastructure Information (CEII) and is thus no longer made publicly available. The NYISO makes the portion of its form 715 that they do not consider to be restricted information available on their website. This consists mainly of an introduction and section headers with no content. To gain access to the maps, diagrams, and base cases, one must apply for authorization and pay a small fee in addition to signing a non disclosure agreement. For that reason, I am unable to include any data or maps contained in the FERC form 715 information, though there is discussion of how this data correlates with other data sources. Part 2 of the FERC Form 715 report contains power flow base cases. NYISO included six base cases in their 2005 filing: a winter 2004/2005 weak load, summer 2005 peak load, spring 2010 light load, summer 2010 peak load, winter 2010/2011 peak load, and summer 2015 peak load. For purposes of this report, we were able to obtain the summer 2010 peak load and a spring 2010 light load base cases. These cases represent the planned transmission system and forecasted system conditions based on NYISO simulations and approved generation and transmission facility upgrades or construction. The summer peak load represents a coincident statewide peak load. This is lower than the sum of peak loads in each of the State s regions because the individual peak loads generally do not occur at the same time. The spring light load represents a load level equal to 45% of the statewide coincident summer peak load level [8]. As stated in the NYISO filing, the power flow base cases are in RAWD data format of the Power Technologies, Inc. (PTI) Power System Simulator for Engineering (PSS/E) load flow program (version 28). The cases have been solved using the fixedslope decoupled Newton iterative algorithm with stepping transformer taps, area interchange and phase shifters engaged, switched shunts and DC line taps unlocked, and VAR limits applied immediately. As required by FERC, the NYISO provides a data dictionary containing a listing of bus names and numbers from the summer 2010 peak load case with corresponding full names for each bus. There is also a second data dictionary containing the Energy 17

Information Administration (EIA) plant codes for the generating plants and the full names of the associated generators. This data dictionary was not initially provided with out data, and could have relieved many hours of work attempting to correlate abbreviated bus names in data files with the EIA codes provided in the EPA files described below. Two weeks before finishing this project, these data dictionaries were provided. While they proved useful in better understanding some of the more obscure name abbreviations, the names between the two lists do not match so it did not relieve the effort of creating a map between the various data sets. A one-line diagram showing the major transmission lines and substations is included for each of the eight NYTO s. Additionally, a map of the New York Power Pool from 1993 is included without any modification. While these diagrams and maps contain a significant amount of information, they proved to be less than helpful in this project. The naming conventions on the maps and diagrams do not match the naming conventions used in the data files making it incredibly difficult to identify components between the two. While line voltages are included on the map, line limits are not. Given the original purpose of this project to perform an OPF on the New York State power system, line limits are a critical component. The software package we had for use on this project is the PowerWorld software described in a separate section of this report. The educational package we had access to has a limit of 7,000 buses. Even the full version of PowerWorld has a 60,000 bus limit. The raw data file provided by the NYISO with base case information contained 45,542 buses of which 5,544 were marked as generator buses. We were not able to open this file with our limited version of PowerWorld given the size. Due to this constraint, the only analysis done with this data was in Excel. Even to import this data into Excel was tricky due to Excel s limit on number of lines it will import. The data first had to be opened in a text editor and saved as a text only file. It then had to be imported into Excel in 40,000 line increments and separated into different worksheets. Interpreting the data from the raw data file proved to be difficult without knowledge of PSS/E, the program that generated the file. PTI does not publish user s manuals and after contacting them, they were not willing to share a user s manual with me for the purposes of interpreting the meaning of the data in the file I had been given. 18

However, I was able to obtain a PSS/E manual from a colleague and use that to determine the meaning of the fields in the various sections. Once the data was in Excel, another concern with the data arose. As mentioned above, the base case included 5,544 generator buses while there are only approximately 350 generating plants in the State. We have not been able to determine thus far what the discrepancy is and why so many buses in the base case are labeled as generators. It is possible that some generating plants have multiple connection points accounting for increased numbers of generator buses. It is also possible that each generator is modeled in the base case, some generating plants having more than half a dozen generators. Even this would not account for the number of generator buses in the base case, as there are a total of roughly 750 generators in the State. We have hypothesized that other possibilities are that loads involved in a demand response program could be modeled as generators, though we have not confirmed this nor do we believe the demand response program in the State to be this large. We were further concerned with the large total number of buses in the base case. While it should only have covered transmission facilities, we thought that given the number of buses it might go all the way to the distribution level. After counting the data, we found the distribution of bus voltage levels shown in Table 1. 12,604 of the buses were found to be under 69kV. Some buses had a zero voltage listing and one even had a voltage of 2,636 a bus name SWPACAP5. It is difficult to believe that any bus in New York State has a voltage this high, making it difficult to interpret this data set without the program in which it was created or an explanation from its creator. Though this data set is likely the most complete and accurate in terms of modeling the State s power system, it proved to be of little use due to the lack of a document allowing for identification of buses and generators and due to its size being too large for the software package we had. 19

Table 1 - Bus count and bus voltages from NYISO 10 year light load base case data file. # buses 45,542 # gen buses 5,544 # buses under 69kV 12,604 # buses 69kV or greater 32,930 # buses 115kV or greater 21,438 # buses 138kV or greater 14,210 # buses 150kV or greater 7,041 # buses 230kV or greater 4,253 # buses 345kV or greater 1,441 # buses 400kV or greater 476 lowest voltage bus 0 highest voltage bus 2,636 4.2 EPA s egrid The EPA s Emissions & Generation Resources Integrated Database (egrid) was the data set that let to this project s formulation. According to their website, egrid is a database that provides information on the air quality attributes of almost all of the electric power generated in the United States. egrid integrates 24 different federal data sources on power plants and power companies from three federal agencies: the EPA, the EIA, and FERC. Broken down by generating stations, boilers, and generators and with dozens of fields for each component, there is a wealth of information about the generators. For every power plant in the country, egrid provides a detailed emissions profile covering total and per MWh emissions of nitrogen oxides, sulfur dioxides, carbon dioxide, and mercury. Also of use, egrid provides fuel type and heat rate for each plant as well as breakdowns by fuel for multi-fuel plants. Multiple years of data are available but this project focused only on the most recent data available, the 2000 data set. Data through 2004 is scheduled to be posted in the Fall of 2006. Initially sorting the data to include only those plants in New York State, egrid shows there to be 319 generating plants in the State with 785 generators. For each generator or plant it gives the plant name and the EIA plant code to ensure the data can be matched with outside sources. The total capacity of New York generators listed in 20

egrid is 38,503MW. egrid lists only nameplate capacity, not summer and winter ratings. 4.3 NYISO Load and Capacity Data Each year the NYISO publishes a Load & Capacity Data report. Prior to the NYISO s formation, the NYPP published a similar report in print form. The Load & Capacity Data report presents the NYISO forecasts of peak load, energy requirements and emergency demand response program, existing generating capacity and planned changes, existing and proposed transmission, and normal power transfer limits. This report is available to download from the NYISO website. The 2005 report was used in this study, though the 2006 report has been released in the meantime. Section III, Existing Generating Capacity as of April 1, 2005 lists all generators in the State (hereafter referred to as the NYISO list) by name and owner along with their location by town, in service date, summer and winter capacity, generator type and fuel type. It also has incomplete information on the net energy produced by the generator the previous year. All generators are assigned a PTID by the NYISO which is given in the NYISO list. The PTID is an identification number used in the ORACLE based Database Management System used by the NYISO. There is no publicly available mapping to correlate PTID s with the bus numbers used in the form 715 power flow cases. Correlating the generators on the NYISO list with those on the egrid list was not an easy task given that they do not contain a common identification scheme. Names are often changed as plant ownership changes and the same plant may be referred to by multiple names based on their ownership, location, or given name. To complicate matters further, the names are often given as abbreviations. The majority of time spent on this project was spent attempting to create maps between the plants in the various data sets, a task that seems frivolous given that the NYISO surely has a map between their PTID s and the EIA identification codes. The efforts at creating such a map between the data sets is described in its own section. 21

The total summer capacity in the NYISO list is 37,548MW while the winter capacity is 39,655MW. This is slightly below and above what is listed in the egrid data, making it a seemingly complete and reasonable set. 4.4 New York State Generator Data Provided by Professor Thomas Professor Thomas had a spreadsheet of data compiled by his graduate students presumably from the previous NYPP annual capacity reports. The list contains 332 generators, just under half of the number listed by egrid. 157 of those generators were not able to be matched with egrid generators based only on name, size, and fuel type. 67 generators have average heat rates listed; an incomplete listing of average heat rates was given in the NYPP data books. While the majority of the heat rates were within 20% of those given by egrid, there are a number of anomalies. The Keyspan oil generating plant in Suffolk County has a heat rate listed by egrid of 1,175,566 whereas the heat rate given in this data set is 15,256. I can only presume that there was a data entry error in the egrid data for this plant. Then there is the Shoemaker natural gas plant in Orange County that has a heat rate of 19,000 in this data set and one of 27,681 given by egrid. Neither one seems implausible though they are very different. Glenwood gas oil fired plant in Nassau County has a similar situation with heat rates listed as 17,197 and 24,915. Given the disparities and incompleteness, I did nothing more with this data set than make these comparisons. 4.5 Master s of Engineering Design Project by Ivan Francisco Cabral Trujillo In 1999, Ivan Cabral completed a Master s of Engineering project entitled Using Negative Generators to Model Elastic Loads and Maximize Social Welfare Using a Standard Optimal Power Flow under the advising of Professor Robert Thomas. As part of the project, Ivan used data from the New York Power Pool to create a oneline diagram of the system for several load cases and used some of those cases to conduct power flow simulations. The one-line diagrams were created in the PowerWorld 22

software package. Professor Thomas shared the PowerWorld files with me as a possible source of system data for this project. In his design project report [4], Ivan expresses the difficulty that he had in obtaining complete system data. Though the data file he had obtained from the NYPP contained information on six areas, the one-line diagram contained explicit data only for the NYPP area. This single area was thus the only area that appears in his PowerWorld representation. Most of the transmission lines in his original data set from the NYPP did not contain line limit information. Only the NYPP lines had restrictions given, making accurate determinations of all line violations impossible. Ivan was also given economic data consisting of bid information for generators and loads. However, only 247 of the generators had economic information. Of those, only 235 had identifying PTID information that allowed for them to be matched with the generators in the case files. The total number of generators in the case files was 1,304. The economic information provided drastically fell short of being complete. Any generators without economic information in PowerWorld are automatically assigned a default power curve. To deal with this, for the generators without given economic information, Ivan fixed their power output and operating costs. While I was hoping to be able to build from Ivan s work, the difficulty of filling in the missing information in his model was immense. The first task of matching buses, lines, and generators in his model with the data I had been given was next to impossible to do completely. Even were it possible, Ivan s model had roughly 30,000 buses, making entry of missing information by hand an unreasonable task. 4.6 Seams Model As part of a research project with the NYISO, the E3RG research group run by Professor Thomas was given a model (the seams model) of the power system of New York and surrounding areas by the NYISO for late 2003 capacity and loads. The purpose of the original project was to look at issues of how the various ISO s and utilities interfaced with each other and how power flowed over the seams between the various systems. 23

The seams model contains 3,058 buses, 1340 generators, 2,946 loads, 7,177 lines and transformers, 12 control areas, and 22 zones. It has a system load of 384,804MW and a New York State load of 19,838MW, half way between the base load and the winter peak. Figure 9 was a diagram created as part of this seams project showing the tie lines between NYISO and the surrounding areas as well as the number of buses used to represent each. The NYISO is represented using 846 buses and 42 tie lines connecting New York to the neighboring areas. Figure 9 - NYISO tie-line map and summary of seams project model data Along with the seams project files was an Excel file named Gen_PTID_BUS.xls which appears to map the seams project bus numbers to NYISO PTID numbers. Opening this file and comparing it with the generator information spreadsheet created by PowerWorld from the seams project they are very similar, almost identical. Most of the names and buses match up, but there are a few discrepancies. For example, the PowerWorld-generated generator information lists the Farrckwy plant as the only 24

generator at bus 9. The Gen_PTID_BUS file lists a second generator at bus 9 labelled FPL_FAR_ROCK_GT2. In the Generated-generated list, there is no generator by this name at all. There are 312 generators in New York given in the seams model. Initially, adding up the generators in the NYISO area in the seams data set, the total capacity comes to 57,486MW. This is far too high to be reasonable, roughly 40% higher than the reality of just under 40,000MW. Upon further inspection, the Marcy bus is given a max MW capacity of 9,999MW in the seams model. This is clearly the swing bus, not a ten gigawatt generator. Removing the Marcy bus from the calculation, the model counts 47,487MW of capacity. This value is closer, but still about 8,000MW higher than reasonable. The following discussion details where this extra generation was identified and the process of correlating generators from the seams model with those of the other data sources. All generators in PowerWorld are identified by their bus number, name, and ID. The ID for the vast majority of the units is numeric. The first generator on the bus gets an ID of one. If there is a second or third generator of the same name on the same bus, it receives a two or a three for its ID. If multiple generators in a plant are connected to the same bus, this would be the case. However, there are a select number of generators with an alphabetical ID s. Some are labeled consecutively from A through L. Another seven have an ID of T. If only the generators with an ID of T are also excluded, the capacity comes to 41,103MW. If all alphabetical ID generators are excluded, the capacity comes to 39,101, right in the reasonable range. It is possible that excluding these generators is the appropriate thing to do. First examining the Barrett plant, Table 2 shows the relevant data from the PowerWorld model, the matching PTID s from the GenPTID_BUS.xls file, and the winter capability listed by NYISO in their 2005 capacity report. The total Barrett capacity according to the seams model is 1,024MW. The winter capacity listed by NYISO is 756MW and the summer capacity listed by NYISO is 709MW. The capacity listed by egrid for the 14 generators at the Barrett plant is 661MW. Obviously there is not an exact number we can assume to be correct but it is clear the seams model is overestimating. All generators but the D and L generators roughly match the NYISO 25

listed capacity. D and L are the only two generators with an open status in the seams model meaning that these generators were not turned on. I am unsure of the connection, though it is interesting. If D and L were both set to the NYISO listed capacity, the Barrett capacity in the seams model would become 754MW, right where it should be. Table 2 - Barrett plant data from various sources Barrett Generator Info From Seams Powerworld Model Winter capability (MW Bus No. Name ID Status Max MW PTID from GenPTIDBUS.xls from NYISO list) 2 BARRETT 1 Closed 193.8 23545 196.5 3 BARRETT 1 Closed 196 23546 195.7 4 BARRETT A Closed 50.3 23700 50.8 4 BARRETT B Closed 51.6 23701 52.2 4 BARRETT C Closed 51.1 23702 48.7 4 BARRETT D Open 186 23703 51 4 BARRETT E Closed 21.4 23704 20.5 4 BARRETT F Closed 20 23705 20.6 4 BARRETT G Closed 20 23706 19.7 4 BARRETT H Closed 19.1 23707 19.8 4 BARRETT I Closed 19 23708 20.2 4 BARRETT J Closed 20 23709 20.3 4 BARRETT K Closed 20 23710 19.2 4 BARRETT L Open 156 23711 20.6 Next the Holtsville plant is examined in the same way. Table 3 shows that all but generators E and J closely match the capacity values listed by the NYISO. Generator E is listed in the seams model as 323MW but by NYISO as 63.8MW. The seams model capacity, the NYISO winter capacity, the NYISO summer capacity, and the egrid capacity for the full plant are respectively 1,184MW, 648MW, 527MW, and 567MW. Again, generators E and J are the only ones listed as open in the seams model. If these were set to the NYISO vales, the plant would be in line with the external data. Table 3- Holtsville plant data from various sources Holtsville Generator Info From Seams Powerworld Model Winter capability (MW Bus No. Name ID Status Max MW PTID from GenPTIDBUS.xls from NYISO list) 15 HOLTSVLE A Closed 63 23690 63.3 15 HOLTSVLE B Closed 64.3 23691 63.7 15 HOLTSVLE C Closed 67 23692 64.2 15 HOLTSVLE D Closed 68 23693 63.7 15 HOLTSVLE E Open 323 23694 63.8 1583 HOLT_8KU F Closed 67 23695 64.2 1583 HOLT_8KU G Closed 65.2 23696 70.2 1583 HOLT_8KU H Closed 69 23697 60.7 1583 HOLT_8KU I Closed 65.3 23698 67.3 1583 HOLT_8KU J Open 332 23699 67 26

There is a generator in the seams model with the name UnionAve and the ID K. This is interesting given that it does not appear to have any relation to another generator so one would expect it to have the ID of 1. Matching the bus numbers, Gen_PTID_BUS.xls shows this to be a plant named NYPA_HOLTSVILL, explaining why it has an ID of K. Matching the PTID between this file and the NYISO capacity list shows this to be a plant named Flynn in the town of Holtsville. Both the seams and NYISO winter capacity are reasonably close to each other at 184MW and 165MW respectively as shown in Table 4. Table 4 - Union Ave/Flynn station data from a variety of sources Flynn Generator Info From Seams Powerworld Model Winter capability (MW Bus No. Name ID Status Max MW PTID from GenPTIDBUS.xls from NYISO list) 1432 UNIONAVE K Closed 183.7 1432 165 The remaining seven alphabetic ID generators in the seams model in the NYISO area have the ID of T. Exploring the first one leads to quite a few complications. It is named Niagara and has a capacity listing of 3,044MW. Table 5 shows this generating unit as well as all others in Niagara County. By matching PTID s and bus numbers, AES Somerset is found to be labeled Kintigh in the seams model. Model City Energy is found to be labeled Sandborn. Lockport Cogen appears to be both the generators labeled Lockport and Harsnrad. With these matches made, the generating capacity matches up between the model and the NYISO listings. 27

Table 5 - Niagara County generator data from various sources Niagara County Generator Info From Seams Powerworld Model PTID from Winter capability Bus No. Name ID Status Max MW NYISO name GenPTIDBUS.xls (MW from 359 KINTIGH 1 Closed 693 Somerset 23543 682 431 SANDBORN 1 Closed 5.67 Model City Energy 24167 5.5 289 HARSNRAD 1 Closed 205 Lockport Cogen 23791 217 407 LOCKPORT 1 Closed 18 23791 426 PACKARD 1 Closed 40 American Ref-Fuel 1 and 2 24010 40 427 PACKARD 1 Closed 95? 23895? 427 PACKARD 2 Closed 56.9 WPS Niagara 23895 50 410 MORTIMER 1 Closed 3 Glenwood1-3, Oak Orchard, Waterport 1-2 24046 4 405 NIAGARA 1 Closed 86 Lewiston PS 23760 240 405 NIAGARA 2 Closed 84 Moses Niagara 23760 2433 406 NIAGARA 1 Closed 87 406 NIAGARA 2 Closed 84 417 NIAGARA 1 Closed 21.4 418 NIAGARA T Closed 3044 419 NIAGARA 1 Closed 573 421 NIAGARA 1 Closed 761 422 NIAGARA 1 Closed 573 423 NIAGARA 1 Closed 573 Brascan Power - Hydraulic Race 23848 2.3 The generators labeled Packard in the seams model match by bus and PTID with American Ref Fuel 1 and 2 and WPS Niagara. The first Packard unit on bus 426 matches exactly with the two American Ref-Fuel units. There are two Packard generators listed at 95, and 57MW on bus 427 while there is only one matching PTID for WPS Niagara listed at 50MW. I would assume it matches with the second of the two Packard units, leaving the first one unidentified. The Mortimer generator in the seams model matches by bus and PTID as well as rough size with Glenwood 1 through 3, Oak Orchard, and Waterport 1 and 2. Bus 405 of the seams model has Niagara 1 and 2 at 86 and 84MW. This matches by PTID with both the Lewiston PS unit at 240MW and the Moses Niagara unit at 2,433MW. There are also eight other units named Niagara in the seams model at other buses with no matching PTID summing to 5,716MW. One of these eight has an ID of T. If that is removed, the seven remaining sum to 2,672MW. My assumption is that both Niagara units at bus 405 match the Lewiston PS unit and the seven remaining numerically identified Niagaras match Moses Niagara. The Niagara T unit appears to be some kind of rough total Niagara value. All units labeled Niagara in the seams model besides the Niagara T unit sum to 2,842MW, just shy of the 3,044MW listed by the Niagara T unit. 28

The last generator listed by NYISO in Niagara County is Brascan Power s Hydraulic Race. I am unable to find any match for it in the seams model by PTID or name but as it is only 2.3MW it is not a concern. Moving on to the next generator with a T ID we get to Moses. Table 6 shows that there are two Moses generators with zero capacity, four with capacity of 247 each and the T unit with capacity of 952. Only one of the four has a matching PTID for St. Lawrence FDR listed at 855MW. The four equally-sized units have a total capacity of 989 in the seams model, roughly the size of the St Lawrence unit and the T ID unit. This appears to match the Moses Power Dam unit in the egrid listings, rated at 912MW. This all appears to follow the pattern that the T generator is a summary or total for the station. Table 6 - Moses station data from various sources Moses Generator Info From Seams Powerworld Model PTID from Winter Bus No. Name ID Status Max MW NYISO name GenPTIDBUS.xls capability 515 MOSES 1 Open 0 unlisted 516 MOSES 1 Open 0 unlisted 519 MOSES T Closed 952 unlisted 520 MOSES 1 Closed 247.25 St Lawrence - FDR 23600 855 521 MOSES 1 Closed 247.25 unlisted 522 MOSES 1 Closed 247.25 unlisted 523 MOSES 1 Closed 247.25 unlisted The Gilboa seams plant is the next with a T ID. Table 7 shows a similar pattern where it has four units with roughly equivalent rating that add to 1,057MW while the fifth, T ID, generator has a rating of 1,057MW. The four units have PTID s that match each of them to same sized generators in the NYISO capacity data. The T ID generator has no matching PTID. egrid lists the Blenheim-Gilboa plant as 1,000MW, matching up well. Table 7 - Gilboa station data from various sources Gilboa Generator Info From Seams Powerworld Model PTID from Winter Bus No. Name ID Status Max MW NYISO name GenPTIDBUS.xls capability 591 GILBOA 1 Closed 264.3 Blenheim 1 23756 265 592 GILBOA 1 Closed 264.3 Blenheim 2 23757 264 593 GILBOA 1 Closed 264.3 Blenheim 3 23758 264 594 GILBOA T Open 1057 unlisted 595 GILBOA 1 Closed 264.3 Blenheim 4 23759 264 29

The Feurabush generator in the seams model does not follow any kind of pattern. Four Feurabush generators on one bus match with the PTID for the Selkirk 2 plant rated at 325MW in winter but only 268MW in summer. The four Feurabush units add to 280MW, including the T ID one rated at 15MW. Selkirk-1 s PTID matches with the Longlane unit in the seams model. Their ratings do not coincide though, Selkirk-1 being 112MW and Longlane being only 7 as seen in Table 8. Table 8 - Longlane and Feurabush generator data from various sources Selkirk Generator Info From Seams Powerworld Model PTID from Winter Bus No. Name ID Status Max MW NYISO name GenPTIDBUS.xls capability 600 LONGLANE 1 Closed 7 Selkirk - 1 23801 112 626 FEURABSH 2 Closed 65 Selkirk - 2 23799 325 626 FEURABSH 3 Closed 135 626 FEURABSH 4 Closed 65 626 FEURABSH T Closed 15 The Independence generator in the seams model does not follow any pattern either. Listed at 1,102MW it matches perfectly with the Sithe Independence generator in the NYISO capacity data at 1,082MW as shown in Table 9. Table 9 - Independence station data from various sources Independence Generator Info From Seams Powerworld Model PTID from Winter Bus No. Name ID Status Max MW NYISO name GenPTIDBUS.xls capability 1391 INDPDNCE T Closed 1102 Sithe_Independence 23800 1,082 The four Carr St generators in the seams model on bus 1423 match with the Carr St E Syr generator in the NYISO capacity report as shown in Table 10. The NYISO listing for the unit is 105MW. The first three seams units total 103MW and the fourth, T ID one, is rated at 103MW as well. This follows the pattern of the T being a summary unit. Table 10 - Carr St station data from various sources Carr St Generator Info From Seams Powerworld Model PTID from Winter Bus No. Name ID Status Max MW NYISO name GenPTIDBUS.xls capability 1423 CARR_ST 1 Closed 41 Carr St - E Syr 24060 105 1423 CARR_ST 2 Closed 41 1423 CARR_ST 3 Closed 21 1423 CARR_ST T Closed 103.5 30

The last T ID unit follows no previous pattern. The JFK Airport unit rated at 110MW and shown in Table 11 has a matching PTID that is not found in the NYISO listings. However, the JFK units in the NYISO listings are rated at 117MW and have a PTID also not found in the Gen_PTID_BUS.xls file. I can only assume these are the same units. Table 11 - JFK station data from various sources. The first PTID is from the PTID map file, the second is from the NYISO capacity report. Though they do not match, the generators appear to be the same. JFK Generator Info From Seams Powerworld Model PTID from Winter Bus No. Name ID Status Max MW NYISO name GenPTIDBUS.xls capability 1424 JFK_APT T Closed 109.6 KIAC GT (JFK) 23541/23816 117 Because there is no consistent pattern to deal with the alphabetical ID generators, I cannot assume it is appropriate to simply remove them all. For that reason, I went forward with an attempt to do a rather complete reconciliation between the seams generators and the NYISO capacity list using the PTID_BUS.xls file to match between the two sets and reference the egrid data. There were of course some exceptions that were difficult or not able to be precisely matched. Either the bus numbers did not match between the seams file and the PTID_BUS.xls file or the PTID s given did not match those of the NYISO list. The issues that arose during the matching of seams generators with the other data sets are detailed below. STA_162 in the seams file is the Allegany Cogen in the PTID file. The NYISO lists two units in the Allegany cogen that sum to the size listed for STA_162. The first is a natural gas combustion turbine, the second is a waste heat only turbine. These are clearly coupled and combining their heat rates to model as one unit is reasonable. In a similar way, it appears that both the Allegheny 8 and Allegheny 9 hydro units are represented by the single Langdon generator in the seams model. The Waterside 6, 8, and 9 plants in the NYISO list are represented by the single Waterside generator in the seams model. 31

The Danskammer 5 and 6 plants are represented by the single Danskammer Diesel generator in the seams model. STA_5 in the seams model, given as 107MW, is labeled Station 5_misc _hydro in the PTID file. This would indicate that it is a conglomeration of many small hydro units. The PTID given matches the MillsMills unit in the NYISO file, a 200kW hydro. When looking at the PTID s around that one in the NYISO file, most are small hydro units without a matching PTID in the model, supporting the conglomeration idea. However, adding the consecutive, unmatched hydro together only sums to 52MW, half what we are looking for. The Sturgeon 1, 2, and 3 plants are represented by the single sturgeon pool generator in the seams file. The Dashville 1 and 2 units are represented by the single Ohioville unit in the seams file. By bus number, the Bordercity generator in the seams model matches the NEG Central Seneca unit in the PTID file. This PTID matches it to the Seneca Falls 1 generator in the NYISO file, but this has only a capability of 1.6MW while the Bordercity unit has a capability of 7MW. Additionally, the next 16 small hydro units in the NYISO file have no match in the seams model. In total, these 17 hydro units in the NYISO file have a capability of 46MW. The Milliken 1 unit in the seams model represents both the Cayuga IC 1 and 2 units in the NYISO file. Fourteen small units in a variety of counties do not have a matching PTID with anything in the seams model. These units, mostly hydro but a few other fuels as well sum to 12.6MW of capacity. The Mongaup unit in the seams model represents the Rio, Mongaup 1, 2, 3, and 4, and Swinging Bridge 1 and 2 units in Sullivan County. Twenty seven small hydro units in a variety of locations do not have matching generators in the seams model by PTID. They sum to 44MW. 32

The HQ_GEN_CEDARS plant in the PTID file does not match any generator in the seams model or the NYISO list. The Mulbryny plant in the seams model represents the Mechanicvill 1 and 2 plants. The Ashokan plant in the seams model represents the Ashokan 1 and 2 hydro units. The Kensico unit in the seams model represents the Kensico 1, 2, and 3 hydro units. The Derfield unit represents the Jarvis 1 and 2 hydro units in the NYISO list. The Pearlrvr plant in the seams model represents both the Lederle1 and the Lederle 2 generators from the NYISO list. The Greenwd plant in the seams model represents both York-Warbasse units in the NYISO list. The Lindn_cg plant in the seams model represents the eight CogenTech- Linden units in the NYISO list. The Harsnrad unit in the seams model represents the four Lockport Cogen units in the NYISO list. The N.End unit in the seams model represents the Saranace Energy 1, 2, and 3 units in the NYISO list. The Hyatt unit in the seams model represents the Seneca Energy 1 and 2 units in the NYISO list. The Saranac plant in the seams model represents the Lower Saranac 1, 2, and 3 units in the NYISO list. The Kent Fl unit in the seams model represents the Alice Falls 1 and 2 units in the NYISO list. The Packard unit in the seams model represents the American Ref Fuel 1 and 2 units in the NYISO list. The N. Troy unit in the seams model represents the Crescent 1, 2, 3, and 4 units in the NYISO list. The Fulton unit in the seams model represents the twenty two small hydro units in Onondaga and Oswego Counties. 33

The Lighthse unit in the seams model represents six small hydro units in St. Lawrence County. The Brownsfls unit in the seams model represents seventeen small hydro units in St. Lawrence County. The Mortimer unit in the seams model represents six small hydro units in the County of Orleans. The Blackrvr unit in the seams model represents sixteen small hydro units in Jefferson County. The Taylorvl plant in the seams model represents twenty four small hydro units in Herkimer and Lewis counties. The Edic/PTR plant in the seams model represents four hydro units in Herkimer and Oneida Counties. The Ingham E plant in the seams model represents six small hydro units in Fulton and Herkimer Counties. The Spierfls unit in the seams model represents 14 small hydro units in Saratoga and Warren Counties. The Shorehm unit in the seams model represents the Shoreham GT3 and GT4 units in the NYISO list. The two Hickling generators are listed as having a capability of 0kW on the NYISO capacity list. The seams model shows them as having a combined capacity of 83MW while the egrid report shows the Hickling plant as having a capacity of 70MW. The egrid data shows that the Hickling plant produced power in 2000. While it is possible that between 2000 and 2005 the plant was turned off, for the purposes of this study, we will leave the plant included. The NYISO rates the four E Hampton generators to 30MW total. egrid shows the East Hampton plant to have a capacity of 27MW corroborating the magnitude suggested by NYISO. Two of the E Hampton generators listed by NYISO match up with seams generators, but two are left without a match. The two seams E Hampton generators, actually labeled Buell, have a 34

combined capacity of 31MW. It is reasonable to assume that these two represent the four E Hampton generators. The third Buell generator in the seams model is rated at 6MW and matches by PTID with Greenport GT1, rated at 55MW in the NYISO list. There are three other Greenport generators listed by NYISO that are not given a PTID but sum to 5MW. These run on fuel oil, as does the 6MW Greenport unit listed by egrid. We will assume that this is the correct match. The Montauk generators, totaling 6MW of fuel oil capacity are not represented in the seams model even though there is an entry for them in the PTID file. The egrid file confirms it to be a 6MW plant that operated in 2000. However, due to the small size of the plant, it is reasonable to ignore it in this project. The Danskamr unit in the seams model is rated at 18MW but matches the West Delaware unit in the NYISO list rated at 7.6MW. egrid rates this unit at 7.5MW. The PTID file names this CH_MISC_IPPS, leading one to believe that this is a representation of the Delaware plant and other IPPs. However, there are no unrepresented plants in Sullivan County based on egrid, so we will set the plant equal to 7.5MW. The three Brentwod generators in the seams model appear to match the Richard M Flynn plant in the egrid data. There is no plant by the name of Brentwood in the egrid database, but the Richard M Flynn is the only unmatched generator in the correct county with the same fuel type that happens to be of the same capacity. The Islip waste to energy facility in the NYISO list appears to be the Huntington Resource Recovery unit in the egrid data. An example of a generator that could never be matched by name alone is the Fort Drum generator as listed in the seams, PTID, and NYISO files. There is no Fort Drum listed in the egrid data but there is a Black River Power LLC Electric Generation Facility of the same size and fuel type, the only one in the county, that appears to be the perfect match given that the PTID file lists Fort Drum as a cogen. 35

In Nassau County, egrid has three plants labeled Plant No 1, Plant No 2, and TBG Cogen. These could not be matched with anything in the seams or NYISO lists until the owner was considered. Once the owner of Plant No 1 and 2 was determined to be the village of Freeport, it was clear that this was the plant labeled Freeport by NYISO. Once the TBG cogen was understood to be owned by Calpine, it was clear that this was the Calpine Bethpage plant in the NYISO list. The Goodyear Lake Plant is listed by egrid as being in Otsego county whereas NYISO registers it in Oswego County and does not give it a PTID. The 3.2MW generator named Macedon in the seams model matches the NEG Central_High_Acres plant in the PTID file which matches the 3.2MW High Acres plant in Wayne County in the NYISO report. The High Acres Gas Recovery plant in neighboring Monroe County, rated at 3.2MW is assumed to be the corresponding plant in the egrid file. Similarly, the 60MW Walck Rd plant in the seams file matches with the Oxbow plant in the PTID and the NYISO file. NYISO lists this plant in Erie County at 59MW while egrid lists it as being in neighboring Niagara county at 55MW. It is assumed these are all the same plant. The 42MW Ticonderg plant in the seams model, IP_Ticonderoga in the PTID file is unmatched in the NYISO listings. The 42MW Ticonderoga Mill plant in Essex County, owned by International Paper appears to be the correct match in the egrid file. The Eastview plant in the seams model does not match any plant by bus/ptid or name in any other data set. It is difficult to determine which plant is its match. The Eastview plant is only listed at 1MW, so no matter what decision is made, it is of little consequence. The EFishkil plant is in the same situation. The Foxhills plant in the seams model is named Pouch by NYISO. This generator is definitively not in the egrid database given that it is found in the EIA dictionary with an EPA identification number not found in egrid. Upon inspection of the NYISO records, the Pouch plant did not begin 36

operations until 2001, after the egrid data currently available. By year of operation, fuel type, and size, the Stony Brook plant is the best match and will be used in this model for emissions purposes. There is no match to the Queensbridge station in either the NYISO listings or the egrid. Queensbridge is the location of the Ravenswood power plants. In web searches, I was not able to identify any power plants in Queensbridge besides Ravenswood. For the purposes of this study, and given that the seams model lists Queensbridge at only 6MW and places it less than five buses away from the Ravenswood plant, we will assign it the same characteristics as the Ravenswood plant. While the Langdon plant in the seams model, labeled Allegheny 8 by NYISO by the matching bus and PTID, is not found in the egrid files, it is a hydro plant according to the NYISO. We thus know the emissions and it is not critical to determine a heat rate. It and the Allegheny 9 plant are thus set to match the Prospect Hydro emissions, that being a similarly sized hydro unit. The Fraser power plant in the seams model does not match any other items in the other data files, but its capacity is set to zero in the seams file, making this irrelevant. The Gardenville plant has no matching generator in the other files either. It will be matched with the neighboring bus s emissions due to the fact that it is only rated at 1MW and does not make very much of a difference. It is matched with AES Westover. The 4MW Hancock plant in the seams model has no apparent match. However, the town of Hancock is located in Delaware County. There is an un-matched 7MW hydro facility named West Delaware Hydro Plant in the egrid database. We will assume these are a match. The Auburn State Street plant is not listed in the egrid database. I was able to confirm the small hydro plant s existence through web research. It will also be matched with the Prospect plant from egrid. 37

The 5.5MW Lancaster plant in the seams model appears to be the Lancaster Landfill Gas plant in Lancaster, NY in Erie County. This makes it a match with the 5.6MW LFG plant in Erie County given in egrid. The Athens generating station in the seams file was surprisingly not matched by an egrid generator. This was surprising given the 1080MW capacity of the plant. Upon further investigation, the Athens Generating Station did not commence generation until the later part of 2003, well after the 2000 egrid data. It is a natural gas fired plant located in the town of Athens, Green County, NY. It will be matched with the Sithe Independence plant, the best match among the options in terms of size, fuel, and date of construction. The Kent Ave station did not commence operation until late summer 2001 and is thus not available in the egrid system yet. Indeck Olean is the best match for size, date of construction, and fuel type so it will be used to model emissions. The 1MW Pawling plant in the seams model can only be assumed to be related to Pawling, NY of Duchess County. As egrid has no listings for Dutchess County, this generator will be treated as a small hydro unit for the purposes of this study. The Linden Cogen Tech plant began operation in 1992 and should therefore be in the egrid data. However, it is located in Linden, NJ which is why it was not initially identified in the egrid database. It and the Crossroads plant in Mahwah are the only NJ plants that are part of the NYISO system. The Fenner and Wethersfield wind plants did not begin operation until the end of 2000 and 2001 and are thus not included in the egrid data. Again, they do not have any emissions so they can be treated as the Madison wind project. Marcy, listed by seams as a 1500MW plant and a 9999MW plant is not a plant at all. The PTID file matches it to something called NYISO_LBMP_Reference. Marcy, NY, near Utica, is the site of the Marcy Substation and the Frederick R. Clark Energy Center. This is where the New York Power Authority s Energy Control Center is located. It is the juncture 38

of five high voltage transmission lines. I can only assume that the Marcy generators listed here are proxies for other pieces of the system when only the NYPA area is modeled. After all of this reconciliation, 7451MW of extra generation in the seams file in the NYISO area has been identified. This is detailed in Table 12. When this extra generation is removed from the seams model, the total generation left in the NYISO area is 40,036MW, very close to the actual installed capacity. Table 12 - "Extra" generation in the seams model and its location Generator Extra MW Marcy 9999 Marcy 1500 Barrett E 135 Barett L 135.4 Holtsville E 259.2 Holtsville J 265 Niagara T 3044 Moses T 952 Gilboa T 1057 Carr St T 103 Total 7450.6 4.7 TCC Auction Data Given the difficulties of correlating system data between various sources and the problems associated with the NYISO base case being too large, I was advised by a friend working at the NYISO of another available model of the State s power system that is smaller in size. This model is used in the Transmission Congestion Contract (TCC) auctions performed by the NYISO. The data for these auctions, TAD (TCC Auction Data), is made available to market participants wishing to take part in the TCC auctions. The TAD consists of the power flow case used as the starting point for an Initial TCC Auction. Also provided in PSS/E raw data format, the TAD model has roughly 3,000 buses, a very reasonable number for the New York power system and a reasonable number to deal with semi-manually. 39

Following the procedures on the NYISO website for requesting TAD, I filled out an application for the data and signed a non-disclosure agreement. The manager of auxiliary market operations for the NYISO responded to my request for TAD data with the following statement TAD information is provided only to market participants with business interests in the TCC Market because of the sensitive nature of the information. TAD includes system diagrams that are also considered Critical Infrastructure Information with limited distribution opportunities. It is for those reasons that I regret to inform you we cannot honor your request. Given that I had already been given all of the system diagrams and a more complete model of the state power system from the FERC Form 715 filing, this response seemed unreasonable. Professor Thomas had further discussions with the NYISO regarding this matter and as of the time of this report, the NYISO lawyers were still reviewing whether or not they could share this data with us. 5. Data Quality control egrid The West Babylon plant was registering bizarrely high costs in my model. Going back to the original egrid data, I uncovered what must have been an error in their data. The total net generation for the 52MW plant was listed as 33MWh and the heat input as 38,793MMBtu giving a net heat rate of 1,175,566Btu/kWh. This is not a reasonable heat rate, even for an old oil fired power plant. The ozone season net generation is listed as 1,175MWh, it would be impossible for this to be higher than the total net generation for the year. The average ratio of ozone season generation to total annual generation for all plants in NY is 0.5. For this reason, I have set the annual net generation for the West Babylon plant to be 2,350MWh giving a net heat rate of 16,508MMBtu/MWh, a reasonable value. Similarly, I corrected for what I must assume to be an error in the Shoreham plant with the annual net generation listed as -57MWh while the ozone season net generation is listed at 451MWh. I assume the total generation to be 902MWh and the net heat rate to thus be 29,254MMBtu/MWh. This is high, but in the correct magnitude. 40

The 74 th Street station is perplexing. It gives an annual net generation of -65MWh and an ozone season net generation of only 20MWh. For an annual heat input of 9,850,258MMBtu, this is not reasonable. Even correcting this to 40MWh for the year, it comes to 274,925,750MMBtu/MWh. The 74 th Street plant is very similar in appearance to the 59 th Street oil-fired station, so it will be assigned the heat rate from that plant. The Greenport plant is even more vexing. Rated at 7MW, egrid reports a heat input of 379MMBtu and a net generation of -255MWh. The ozone season net generation is similarly -106Mwh. When the individual generators making up the Greenport plant are examined, egrid labels their annual generation as n/a. Given the small size of the plant and the oddity of this data, it will be set to the same values as the Montauk plant, a similar 6MW oil fired plant. The 74 th Street and the Shoreham plants both have erroneous emissions data with negative emissions rates for NOX, SO2, and CO2. These will be disregarded and the plants assumed to have zero emissions to compensate. 6. Estimating Generator Marginal Costs According to EIA statistics on U.S. investor-owned electric utility revenue and expense from 1993 through 2004 [11], fuel costs as a percentage of total electric utility operating expenses dropped rather steadily from 1993 through 2001 and then started rising again. In 1993 it was roughly 21% whereas in 2001 it was only 14%. As this study is only looking at generator marginal cost, not total utility operating expenses, many expenses are not relevant to this study. Removing expenses such as transmission and distribution, purchased power, customer accounts and service, and sales is likely more representative of what the actual generator s expenses are. Calculating the fuel cost as a percentage of the maintenance, depreciation, and taxes only is likely a reasonable ratio for generators and comes out to a range of 30% to 36% depending upon the year. The trend of these two percentages over the years is shown in Figure 10. 41

Figure 10 - Fuel costs as a percentage of electric utility operating costs. Src: http://www.eia.doe.gov/cneaf/electricity/epa/epaxlfile8_1.xls This does not tell us anything about the type of generator though. Clearly, a natural gas fired peaking plant would have a different fuel cost to total expense ratio than a hydro plant. 42

Figure 11 - Average fuel/total operation and maintenance expense ratio for major U.S. investor owned utilities in 2004. Src: http://www.eia.doe.gov/cneaf/electricity/epa/epaxlfile8_2.xls Figure 11 shows that 25.1% of nuclear plant operation and maintenance cost is due to fuel purchases whereas fuel for fossil steam plants accounts for 76.4% of expenses. Hydro has a zero fuel cost and gas turbines and internal combustion generators have an average fuel cost of 90.2% of expenses. An EIA article on challenges facing fuel suppliers in a restructured electric power industry confirms that nuclear fuel accounts for roughly one quarter of a nuclear plant s operating costs [5]. Because generation costs from hydro and other electric generators with zero fuel cost cannot be determined based upon a heat rate and a ratio of fuel cost to total cost, we must look at the cost per generation numbers for these types of plants. The total operation and maintenance costs of hydro facilities from IOU s in 2004 was 8.69 mils per kilowatthour. To ensure that the scaling gives reasonable numbers for the other generators, it is important to note that nuclear generators reported a cost of 18.26 mils per kwh, fossil steam a cost of 23.85 mils per kwh, and gas turbines and small scale generators a cost of 50.1 mils per kwh. Of this, 4.58, 18.21, and 45.2 respectively were their fuel costs in mils per kwh [3]. 43

Table 13 gives a summary of calculated fuel costs used in the rest of this study, broken down in the same way that egrid classifies fuel types. The Fuel Cost in dollars per million Btu s is sourced from the EIA s July 2006 Monthly Energy Review and 2005 Annual Energy Review. Both use 2005 annual average values. The average operating cost in dollars per MWh is from the EIA Energy Annual report based on category of generator for 2004 annual averages. Because fuel costs increased significantly from 2004 to 2005, a scaling factor was introduced to convert the 2004 operating costs to equivalent 2005 operating costs where the scaling factor is the change in that particular fuel cost from 2004 to 2005. The adjusted net heat rates given are averages for the various fossil fuel generators. The adjustment made is for the combined heat and power (CHP) units. The adjustment was made using egrid s CHP plant electric allocation factors. These factors are uses by egrid in its emissions allocations to account for what portion of the heat input should be allocated for electricity. The same was done to allocate costs here. Using the given fuel costs and the adjusted heat rates, the cost for fuel alone in dollars per MWh is calculated for the fossil fuel units. Finally the average total operating costs for fossil fuel units are calculated using a scaling factor based on what percentage of operating costs are accounted for by fuel costs as described above. Table 13 - Average fuel costs by fuel type calculated by two different methods Fuel Type Description Fossil Fuel Cost 2005 ($/ MMBtu)* Average Operating Cost (2004$/ MWh)** Scaling factor from 2004 fuel cost to 2005* Average Operating Cost Scaled to (2005$/MWh) Average Adjusted Net Heat Rate (Btu/MWh) Average Fossil Fuel Cost based on Heat Rate ($/MWh) Average Operating Cost based on Heat Rate ($/MWh) BIT Coal 1.54 23.85 1.13 27.01 9,197 14.16 18.54 BL Water 8.69 1.00 8.69 COL Coal 1.54 23.85 1.13 27.01 8,445 13.01 17.02 DFO Distillate Fuel Oil 11.89 50.1 1.48 74.28 6,023 170.76 189.32 GAS Natural Gas 8.2 50.1 1.38 68.93 10,329 84.70 93.90 LFG Landfill Gas 50.1 1.00 50.10 MSW Municipal Solid Waste 50.1 1.00 50.10 MWC Refuse (solid waste) 50.1 1.00 50.10 NG Natural Gas 8.2 50.1 1.38 68.93 7,535 61.78 70.67 NUC Nuclear 18.26 1.00 18.26 OG Solid Waste 50.1 1.00 50.10 OIL Oil 6.48 50.1 1.51 75.68 24,848 161.01 178.51 RFO Residual Fuel Oil 7.12 50.1 1.51 75.41 12,862 91.58 101.53 UR Nuclear 18.26 1.00 18.26 WAT Water 8.69 1.00 8.69 WDS Wood 50.1 1.00 50.10 WND Wind 50.1 1.00 50.10 WT Water 8.69 1.00 8.69 Fossil Data from EIA Table 9.10 http://www.eia.doe.gov/emeu/mer/pdf/pages/sec9_15.pdf, Nuclear data from EIA table * ** 9.3 http://www.eia.doe.gov/emeu/aer/pdf/pages/sec9_7.pdf From EIA's 2004 Energy Annual, table 8.2 44

As can be seen, the average operating costs calculated using fuel costs, heat rates, and factors to account for non-fuel operating costs vary significantly from those given by the EIA for country-wide investor owned utility costs. In the case of coal, the calculated costs appear to be lower than the EIA average reported costs. In the case of natural gas, the costs are almost identical. But in the case of oil, the calculated costs are more than double. To account for these differences yet still account for the heat rate information provided by egrid to determine relative operating costs for units of the same fuel type, the average operating cost for each unit will be assigned by using the calculated value scaled so that the mean value for that fuel type matches the EIA reported national average. 7. Mapping PTID to EIA Codes As described briefly in the NYISO Load and Capacity Data section, the majority of time spent on this project was spent attempting to match generators in one data set with generators in another data set. The two most complete data sets I was able to obtain were egrid and the NYISO Load and Capacity Data, both publicly available. egrid s emissions data was the catalyst for this project. It lists the EIA facility code for every generating station. NYISO on the other hand identifies its generating stations using a PTID number. Though the NYISO must have a map between their PTID s and the EIA facility codes, they do not make it publicly available. In fact, in doing research online, I found multiple references in technical papers studying the New York power system lamenting the lack of any publicly available document to correlate PTID s and EIA codes. Though it was not the intention to create such a map at the commencement of this project, such a map had to be created in the course of the work. I had available a model of the power system in New York and surrounding areas in PowerWorld format. Along with this was a file correlating bus numbers from this model with PTID s. It was over 90% complete, though contained many errors and omissions. Using this, I was able to match the generators in the model with the generators listed by the NYISO. This filled in 45

a great amount of information about each of the plants such as location, fuel type, and owner. The goal was to assign costs and emissions data to each generator in the model, so one further step had to be made to then match the egrid generators to the seams model generators. The additional information in the NYISO listings as well as the name variations among the three data sets just mentioned made this mapping possible though arduous. What follows is as accurate a map between NYISO listed generators and EIA facility codes as I was able to produce. There are still multiple omissions and surely a handful of mismatched generators, but it very closely complete. It is important to note that this map was made using publicly available information and over a hundred of hours of work. 46

Table 14 - PTID to EIA Code Map NYISO Ref No. Owner/Operator NYISO Station Name PTID Town Winter Capacity Cnty (kw) egrid Station Name EIA Code 1001 AES Corp. Cayuga 1 23584 Lansing 109 152000 AES CAYUGA 2535 1002 AES Corp. Cayuga 2 23585 Lansing 109 153800 AES CAYUGA 2535 1003 AES Corp. Cayuga IC 1 23629 Lansing 109 2800 AES CAYUGA 2535 1004 AES Corp. Cayuga IC 2 23629 Lansing 109 2800 AES CAYUGA 2535 1005 AES Corp. Greenidge 3 23582 Torrey 123 54100 AES GREENIDGE 2527 1006 AES Corp. Greenidge 4 23583 Torrey 123 107500 AES GREENIDGE 2527 1007 AES Corp. Hickling 1 23621 Corning 101 0 AES HICKLING LLC 2529 1008 AES Corp. Hickling 2 23622 Corning 101 0 AES HICKLING LLC 2529 1009 AES Corp. Jennison 1 23625 Bainbridge 17 0 AES JENNISON LLC 2531 1010 AES Corp. Jennison 2 23626 Bainbridge 17 0 AES JENNISON LLC 2531 1011 AES Corp. Somerset 23543 Somerset 63 682000 AES SOMERSET LLC 6082 1012 AES Corp. Westover 7 23579 Union 7 44400 AES WESTOVER 2526 1013 AES Corp. Westover 8 23580 Union 7 84400 AES WESTOVER 2526 1014 Athens Generating Company, LP Athens 1 23668 Athens 39 405000 SITHE INDEPENDENCE STATION 54547 1015 Athens Generating Company, LP Athens 2 23670 Athens 39 405000 SITHE INDEPENDENCE STATION 54547 1016 Athens Generating Company, LP Athens 3 23677 Athens 39 405000 SITHE INDEPENDENCE STATION 54547 1017 Boralex Fourth Branch (Mohawk Paper) 23824 91 2700 FOURTH BRANCH HYDROELECTRIC FACILITY 10467 1018 Boralex NYS Dam 23527 Waterford 91 11400 NEW YORK STATE DAM HYDRO 10221 1019 Boralex Sissonville 23735 Potsdam 89 2900 SISSONVILLE HYDROELECTRIC 10220 1020 Boralex Warrensburg 23737 113 2900 WARRENSBURG HYDROELECTRIC 10218 1021 Brascan Power - NY Carr St.-E. Syr 24060 Dewitt 67 105500 CARR STREET GENERATING STATION 50978 1022 Brascan Power - NY Hydro Services LLC Various (Listed below) 1023 Brascan Power - NY Newton Falls 1 - Lower 23847 89 417 not listed 1024 Brascan Power - NY Newton Falls 2 - Upper 23847 89 418 not listed 1025 Brascan Power - NY Newton Falls 3 - Upper 23847 89 418 not listed 1026 Brascan Power - NY Newton Falls 4 - Upper 23847 89 418 not listed 1027 Brascan Power - NY Hydraulic Race 23848 63 2300 HYDRAULIC RACE 2578 1028 Brascan Power - NY Baldwinsville 1 24041 67 242 TRIGEN SYRACUSE ENERGY CORP 50651 1029 Brascan Power - NY Baldwinsville 2 24041 67 242 not listed 1030 Brascan Power - NY Fulton 1 24041 75 657 FULTON 2566 1031 Brascan Power - NY Fulton 2 24041 75 369 FULTON 2566 1032 Brascan Power - NY Granby 1 24041 75 4104 GRANBY 2569 1033 Brascan Power - NY Granby 2 24041 75 4104 GRANBY 2569 1034 Brascan Power - NY Minetto 2 24041 75 1313 MINETTO 2586 1035 Brascan Power - NY Minetto 3 24041 75 1313 MINETTO 2586 1036 Brascan Power - NY Minetto 4 24041 75 1313 MINETTO 2586 1037 Brascan Power - NY Minetto 5 24041 75 1313 MINETTO 2586 1038 Brascan Power - NY Minetto 6 24041 75 1313 MINETTO 2586 1039 Brascan Power - NY Oswego Falls E 1 24041 75 1231 OSWEGO FALLS EAST 2595 1040 Brascan Power - NY Oswego Falls E 2 24041 75 1231 OSWEGO FALLS EAST 2595 1041 Brascan Power - NY Oswego Falls E 3 24041 75 1231 OSWEGO FALLS EAST 2595 1042 Brascan Power - NY Oswego Falls W 3 24041 75 328 OSWEGO FALL WEST 2596 1043 Brascan Power - NY Oswego Falls W 4 24041 75 762 OSWEGO FALL WEST 2596 1044 Brascan Power - NY Oswego Falls W 5 24041 75 762 OSWEGO FALL WEST 2596 1045 Brascan Power - NY Varick 2 24041 75 1806 VARICK 2621 1046 Brascan Power - NY Varick 3 24041 75 2052 VARICK 2621 1047 Brascan Power - NY Varick 4 24041 75 1806 VARICK 2621 1048 Brascan Power - NY Varick 5 24041 75 1806 VARICK 2621 1049 Brascan Power - NY Allens Falls 24042 89 3953 ALLENS FALLS 2540 1050 Brascan Power - NY Chasm 1 24042 33 1129 CHASM 2550 1051 Brascan Power - NY Chasm 2 24042 33 1129 CHASM 2550 1052 Brascan Power - NY Chasm 3 24042 33 1524 CHASM HYDRO PARTNERSHIP 50315 1053 Brascan Power - NY Franklin 1 24042 33 1000 FRANKLIN 2564 1054 Brascan Power - NY Franklin 2 24042 33 1000 FRANKLIN 2564 1055 Brascan Power - NY Hogansburg 24042 33 277 not listed 1056 Brascan Power - NY Macomb 24042 33 917 MACOMB 2583 1057 Brascan Power - NY Parishville 24042 89 2355 PARISHVILLE 2597 1058 Brascan Power - NY Piercefield 1 24042 89 1319 PIERCEFIELD 2598 1059 Brascan Power - NY Piercefield 2 24042 89 527 PIERCEFIELD 2598 1060 Brascan Power - NY Piercefield 3 24042 89 527 PIERCEFIELD 2598 1061 Brascan Power - NY Bennetts Bridge 1 24043 75 6868 BENNETTS BRIDGE 2545 1062 Brascan Power - NY Bennetts Bridge 2 24043 75 6868 BENNETTS BRIDGE 2545 1063 Brascan Power - NY Bennetts Bridge 3 24043 75 7542 BENNETTS BRIDGE 2545 1064 Brascan Power - NY Bennetts Bridge 4 24043 75 7542 BENNETTS BRIDGE 2545 1065 Brascan Power - NY Lighthouse Hill 1 24043 75 4040 LIGHTHOUSE HILL 2582 1066 Brascan Power - NY Lighthouse Hill 2 24043 75 4040 LIGHTHOUSE HILL 2582 1067 Brascan Power - NY Browns Falls 1 24044 89 7393 BROWNS FALLS 2548 1068 Brascan Power - NY Browns Falls 2 24044 89 7393 BROWNS FALLS 2548 1069 Brascan Power - NY Eel Weir 1 24044 89 346 EEL WEIR 2556 1070 Brascan Power - NY Eel Weir 2 24044 89 761 EEL WEIR 2556 1071 Brascan Power - NY Eel Weir 3 24044 89 761 EEL WEIR 2556 1072 Brascan Power - NY Flat Rock 1 24044 89 2957 FLAT ROCK 2563 1073 Brascan Power - NY Flat Rock 2 24044 89 2957 FLAT ROCK 2563 1074 Brascan Power - NY Heuvelton 1 24044 89 338 HEUVELTON 2573 1075 Brascan Power - NY Heuvelton 2 24044 89 339 HEUVELTON 2573 1076 Brascan Power - NY Oswegatchie 1 24044 89 639 not listed 1077 Brascan Power - NY Oswegatchie 2 24044 89 274 not listed 1078 Brascan Power - NY South Edwards 1 24044 89 1140 SOUTH EDWARDS 2604 1079 Brascan Power - NY South Edwards 2 24044 89 1140 SOUTH EDWARDS 2604 1080 Brascan Power - NY South Edwards 3 24044 89 775 SOUTH EDWARDS 2604 1081 Brascan Power - NY South Edwards 4 24044 89 228 SOUTH EDWARDS 2604 1082 Brascan Power - NY Talcville 1 24044 89 206 TALCVILLE 7583 1083 Brascan Power - NY Talcville 2 24044 89 206 TALCVILLE 7583 1084 Brascan Power - NY Glenwood 1 24046 73 507 GLENWOOD 2568 1085 Brascan Power - NY Glenwood 2 24046 73 507 GLENWOOD 2568 1086 Brascan Power - NY Glenwood 3 24046 73 508 GLENWOOD 2568 1087 Brascan Power - NY Oak Orchard 24046 73 29 not listed 1088 Brascan Power - NY Waterport 1 24046 73 1224 WATERPORT 2623 1089 Brascan Power - NY Waterport 2 24046 73 1225 WATERPORT 2623 1090 Brascan Power - NY Beebee Island 1 24047 45 4114 BEEBEE ISLAND HYDRO PLANT 10531 1091 Brascan Power - NY Beebee Island 2 24047 45 4114 BEEBEE ISLAND HYDRO PLANT 10531 1092 Brascan Power - NY Black River 1 24047 45 2028 BLACK RIVER 2546 1093 Brascan Power - NY Black River 2 24047 45 2028 BLACK RIVER 2546 1094 Brascan Power - NY Black River 3 24047 45 2028 BLACK RIVER 2546 1095 Brascan Power - NY Deferiet 1 24047 45 3651 DEFERIET 2552 1096 Brascan Power - NY Deferiet 2 24047 45 3651 DEFERIET 2552 1097 Brascan Power - NY Deferiet 3 24047 45 3651 DEFERIET NEW YORK 50246 1098 Brascan Power - NY Herrings 1 24047 45 1826 HERRINGS 2572 1099 Brascan Power - NY Herrings 2 24047 45 1826 HERRINGS 2572 1100 Brascan Power - NY Herrings 3 24047 45 1826 HERRINGS 2572 1101 Brascan Power - NY Kamargo 1 24047 45 1826 KAMARGO 2581 1102 Brascan Power - NY Kamargo 2 24047 45 1826 KAMARGO 2581 1103 Brascan Power - NY Kamargo 3 24047 45 1826 KAMARGO 2581 1104 Brascan Power - NY Sewalls 1 24047 45 1090 SEWALLS 2608 1105 Brascan Power - NY Sewalls 2 24047 45 1091 SEWALLS 2608 1106 Brascan Power - NY Belfort 1 24048 49 399 BELFORT 2544 1107 Brascan Power - NY Belfort 2 24048 49 639 BELFORT 2544 47

1108 Brascan Power - NY Belfort 3 24048 49 998 BELFORT 2544 1109 Brascan Power - NY Eagle 1 24048 49 1282 EAGLE 2555 1110 Brascan Power - NY Eagle 2 24048 49 1332 EAGLE 2555 1111 Brascan Power - NY Eagle 3 24048 49 1332 EAGLE 2555 1112 Brascan Power - NY Eagle 4 24048 49 2022 EAGLE 2555 1113 Brascan Power - NY Effley 1 24048 49 394 EFFLEY 2557 1114 Brascan Power - NY Effley 2 24048 49 394 EFFLEY 2557 1115 Brascan Power - NY Effley 3 24048 49 590 EFFLEY 2557 1116 Brascan Power - NY Effley 4 24048 49 1535 EFFLEY 2557 1117 Brascan Power - NY Elmer 1 24048 49 911 ELMER 2559 1118 Brascan Power - NY Elmer 2 24048 49 911 ELMER 2559 1119 Brascan Power - NY High Falls 1 24048 49 1578 HIGH FALLS 2575 1120 Brascan Power - NY High Falls 2 24048 49 1578 HIGH FALLS 2575 1121 Brascan Power - NY High Falls 3 24048 49 1578 HIGH FALLS 2575 1122 Brascan Power - NY Moshier 1 24048 43 3946 MOSHIER 2588 1123 Brascan Power - NY Moshier 2 24048 43 3946 MOSHIER 2588 1124 Brascan Power - NY Soft Maple 1 24048 49 7398 SOFT MAPLE 2610 1125 Brascan Power - NY Soft Maple 2 24048 49 7398 SOFT MAPLE 2610 1126 Brascan Power - NY Taylorville 1 24048 49 1061 TAYLORVILLE 2617 1127 Brascan Power - NY Taylorville 2 24048 49 1061 TAYLORVILLE 2617 1128 Brascan Power - NY Taylorville 3 24048 49 1061 TAYLORVILLE 2617 1129 Brascan Power - NY Taylorville 4 24048 49 1156 TAYLORVILLE 2617 1130 Brascan Power - NY Prospect 24049 43 21720 PROSEPECT 2599 1131 Brascan Power - NY Trenton Falls 5 24049 65 8528 TRENTON FALLS 2619 1132 Brascan Power - NY Trenton Falls 6 24049 65 8026 TRENTON FALLS 2619 1133 Brascan Power - NY Trenton Falls 7 24049 65 8026 TRENTON FALLS 2619 1134 Brascan Power - NY Inghams 1 24050 43 3450 INGHAMS 2579 1135 Brascan Power - NY Inghams 2 24050 43 3450 INGHAMS 2579 1136 Brascan Power - NY Beardslee 1 24051 43 9397 BEARDSLEE 2543 1137 Brascan Power - NY Beardslee 2 24051 43 9397 BEARDSLEE 2543 1138 Brascan Power - NY Ephratah 1 24051 35 683 EPHRATAH 2560 1139 Brascan Power - NY Ephratah 2 24051 35 607 EPHRATAH 2560 1140 Brascan Power - NY Ephratah 3 24051 35 658 EPHRATAH 2560 1141 Brascan Power - NY Ephratah 4 24051 35 658 EPHRATAH 2560 1142 Brascan Power - NY Blake 24056 89 15545 BLAKE 2547 1143 Brascan Power - NY Five Falls 24056 89 24289 FIVE FALLS 2562 1144 Brascan Power - NY Rainbow Falls 24056 89 24289 RAINBOW FALLS 2600 1145 Brascan Power - NY South Colton 24056 89 20888 SOUTH COLTON 2611 1146 Brascan Power - NY Stark 24056 89 24289 STARK 2613 1147 Brascan Power - NY Colton 1 24057 89 9760 COLTON 2551 1148 Brascan Power - NY Colton 2 24057 89 9760 COLTON 2551 1149 Brascan Power - NY Colton 3 24057 89 9760 COLTON 2551 1150 Brascan Power - NY East Norfolk 24057 89 3599 EAST NORFOLK 2561 1151 Brascan Power - NY Hannawa Falls 1 24057 89 3514 HANNAWA 2571 1152 Brascan Power - NY Hannawa Falls 2 24057 89 3514 HANNAWA 2571 1153 Brascan Power - NY Higley 1 24057 89 1171 HIGLEY 2576 1154 Brascan Power - NY Higley 2 24057 89 1171 HIGLEY 2576 1155 Brascan Power - NY Higley 3 24057 89 2030 HIGLEY 2576 1156 Brascan Power - NY Higley 4 24057 89 2030 HIGLEY 2576 1157 Brascan Power - NY Norfolk 24057 89 4490 NORFOLK 2590 1158 Brascan Power - NY Norwood 24057 89 1985 NORWOOD 2591 1159 Brascan Power - NY Raymondville 24057 89 2076 RAYMONDVILLE 2601 1160 Brascan Power - NY Sugar Island 1 24057 89 2127 SUGAR ISLAND 2616 1161 Brascan Power - NY Sugar Island 2 24057 89 1963 SUGAR ISLAND 2616 1162 Brascan Power - NY Yaleville 1 24057 89 203 YALEVILLE 2624 1163 Brascan Power - NY Yaleville 2 24057 89 292 YALEVILLE 2624 1164 Brascan Power - NY E J West 1 24058 91 10930 E J WEST 6527 1165 Brascan Power - NY E J West 2 24058 91 10930 E J WEST 6527 1166 Brascan Power - NY Feeder Dam 1 24058 91 979 FEEDER DAM HYDRO PLANT 10530 1167 Brascan Power - NY Feeder Dam 2 24058 91 979 FEEDER DAM HYDRO PLANT 10530 1168 Brascan Power - NY Feeder Dam 3 24058 91 979 FEEDER DAM HYDRO PLANT 10530 1169 Brascan Power - NY Feeder Dam 4 24058 91 980 FEEDER DAM HYDRO PLANT 10530 1170 Brascan Power - NY Feeder Dam 5 24058 91 980 FEEDER DAM HYDRO PLANT 10530 1171 Brascan Power - NY Sherman Island 1 24058 113 7870 SHERMAN ISLAND 2609 1172 Brascan Power - NY Sherman Island 2 24058 113 9510 SHERMAN ISLAND 2609 1173 Brascan Power - NY Sherman Island 3 24058 113 7870 SHERMAN ISLAND 2609 1174 Brascan Power - NY Sherman Island 4 24058 113 7870 SHERMAN ISLAND 2609 1175 Brascan Power - NY Spier Falls 1 24058 91 7433 SPIER FALLS 2612 1176 Brascan Power - NY Spier Falls 2 24058 91 41099 SPIER FALLS 2612 1177 Brascan Power - NY Stewarts Bridge 24058 91 32791 STEWARTS BRIDGE 2614 1178 Brascan Power - NY Johnsonville 1 24059 83 1162 JOHNSONVILLE 2580 1179 Brascan Power - NY Johnsonville 2 24059 83 1163 JOHNSONVILLE 2580 1180 Brascan Power - NY Schaghticoke 1 24059 83 4787 SCHAGHTICOKE 2606 1181 Brascan Power - NY Schaghticoke 2 24059 83 4787 SCHAGHTICOKE 2606 1182 Brascan Power - NY Schaghticoke 3 24059 83 4787 SCHAGHTICOKE 2606 1183 Brascan Power - NY Schaghticoke 4 24059 83 4787 SCHAGHTICOKE 2606 1184 Brascan Power - NY School Street 1 24059 Cohoes 1 10524 SCHOOL STREET 2605 1185 Brascan Power - NY School Street 2 24059 Cohoes 1 10524 SCHOOL STREET 2605 1186 Brascan Power - NY School Street 3 24059 Cohoes 1 10524 SCHOOL STREET 2605 1187 Brascan Power - NY School Street 4 24059 Cohoes 1 10524 SCHOOL STREET 2605 1188 Brascan Power - NY School Street 5 24059 Cohoes 1 14617 SCHOOL STREET 2605 1189 Brascan Power - NY Schuylerville 24059 91 1611 SCHUYLERVILLE 2607 1190 Calpine Energy Service LP Bethpage 23823 Bethpage 59 59800 TBG COGEN 50292 1191 Calpine Energy Service LP Bethpage GT4 24209 Bethpage 59 50000 TBG COGEN 50292 1192 Calpine Energy Service LP KIAC GT 01 (JFK) 23816 Jamaica 81 44538 KENNEDY INTERNATIONAL AIRPORT COGEN FACILITY 54114 1193 Calpine Energy Service LP KIAC GT 02 (JFK) 23816 Jamaica 81 44537 KENNEDY INTERNATIONAL AIRPORT COGEN FACILITY 54114 1194 Calpine Energy Service LP KIAC ST 01 (JFK) 23816 Jamaica 81 27825 KENNEDY INTERNATIONAL AIRPORT COGEN FACILITY 54114 1195 Calpine Energy Service LP Stony Brook 24151 Stony Brook 103 20800 STONY BROOK COGENERATION PLANT 54149 1196 Canastota Wind Power, LLC Fenner Wind Power 24204 Fenner 53 30000 MADISON WINDPOWER 55769 1197 Central Hudson Gas & Elec. Corp. Coxsackie GT 23611 Coxsackie 39 17700 WEST COXSACKIE 2487 1198 Central Hudson Gas & Elec. Corp. Dashville 1 23610 Rifton 111 2900 DASHVILLE 2481 1199 Central Hudson Gas & Elec. Corp. Dashville 2 23610 Rifton 111 2900 DASHVILLE 2481 1200 Central Hudson Gas & Elec. Corp. DCCRA 23765 Poughkeepsie 27 8000 DUTCHESS COUNTY RESOURCE RECOVERY FACILITY 10305 1201 Central Hudson Gas & Elec. Corp. Groveville Mills x Beacon 27 800 noot listed 1202 Central Hudson Gas & Elec. Corp. High Falls 23754 Marbletown 111 3000 HIGH FALLS 579 1203 Central Hudson Gas & Elec. Corp. Millpond x Catskill 39 900 not listed 1204 Central Hudson Gas & Elec. Corp. Montgomery West x Montgomery 71 200 not listed 1205 Central Hudson Gas & Elec. Corp. Neversink 23608 Grahamsville 105 23000 NEVERSINK 2483 1206 Central Hudson Gas & Elec. Corp. Salisbury Mills x Salisbury Mills 71 500 not listed 1207 Central Hudson Gas & Elec. Corp. South Cairo 23612 Cairo 39 17700 SOUTH CAIRO 2485 1208 Central Hudson Gas & Elec. Corp. Sturgeon 1 23609 Rifton 111 5266 STURGEON 2486 1209 Central Hudson Gas & Elec. Corp. Sturgeon 2 23609 Rifton 111 5267 STURGEON 2486 1210 Central Hudson Gas & Elec. Corp. Sturgeon 3 23609 Rifton 111 5267 STURGEON 2486 1211 Central Hudson Gas & Elec. Corp. Wallkill x Shwangunk 111 500 not listed 1212 Central Hudson Gas & Elec. Corp. Wappingers Falls 23765 Wappingers 27 2100 WAPPINGER FALLS HYDROELECTRIC 54573 1213 Central Hudson Gas & Elec. Corp. West Delaware 23765 Grahamsville 105 7600 WEST DELAWARE TUNNEL PLANT 51033 1214 CHI Energy Wethersfield Wind Power 24143 Wethersfield 121 6600 MADISON WINDPOWER 55769 1215 Consolidated Edison of NY, Inc. 59 St. GT 1 24138 Manhattan 61 19700 59TH STREET 2503 1216 Consolidated Edison of NY, Inc. 74 St. GT 1 24260 Manhattan 61 17700 74TH STREET 2504 1217 Consolidated Edison of NY, Inc. 74 St. GT 2 24261 Manhattan 61 19100 74TH STREET 2504 48

1218 Consolidated Edison of NY, Inc. East River 6 23660 Manhattan 61 135400 EAST RIVER 2493 1219 Consolidated Edison of NY, Inc. East River 7 23524 Manhattan 61 183100 EAST RIVER 2493 1220 Consolidated Edison of NY, Inc. Hudson Ave 10 (Ret. 10/01/04) 24168 Brooklyn 47 0 HUDSON AVENUE 2496 1221 Consolidated Edison of NY, Inc. Hudson Ave 3 23810 Brooklyn 47 15400 HUDSON AVENUE 2496 1222 Consolidated Edison of NY, Inc. Hudson Ave 4 23540 Brooklyn 47 15900 HUDSON AVENUE 2496 1223 Consolidated Edison of NY, Inc. Hudson Ave 5 23657 Brooklyn 47 17300 HUDSON AVENUE 2496 1224 Consolidated Edison of NY, Inc. Waterside 6 23538 Manhattan 61 68800 WATERSIDE 2502 1225 Consolidated Edison of NY, Inc. Waterside 8 23538 Manhattan 61 49600 WATERSIDE 2502 1226 Consolidated Edison of NY, Inc. Waterside 9 23538 Manhattan 61 49400 WATERSIDE 2502 1227 Consolidated Edison of NY, Inc. Brooklyn Navy Yard 23515 Brooklyn 47 294700 BROOKLYN NAVY YARD COGENERATION PARTNERS L P 54914 1228 Consolidated Edison of NY, Inc. York-Warbasse 23770 Brooklyn 47 15760 WARBASSE COGEN FACILITY 50405 1229 Consolidated Edison of NY, Inc. York-Warbasse 23770 Brooklyn 47 3940 WARBASSE COGEN FACILITY 50405 1230 Consolidated Edison of NY, Inc. Cogen Tech-Linden 23786 Linden NJ 39 96121 LINDEN COGEN PLANT 50006 1231 Consolidated Edison of NY, Inc. Cogen Tech-Linden 23786 Linden NJ 39 96121 not listed??? 1232 Consolidated Edison of NY, Inc. Cogen Tech-Linden 23786 Linden NJ 39 96121 not listed??? 1233 Consolidated Edison of NY, Inc. Cogen Tech-Linden 23786 Linden NJ 39 96121 not listed??? 1234 Consolidated Edison of NY, Inc. Cogen Tech-Linden 23786 Linden NJ 39 96121 not listed??? 1235 Consolidated Edison of NY, Inc. Cogen Tech-Linden 23786 Linden NJ 39 106465 not listed??? 1236 Consolidated Edison of NY, Inc. Cogen Tech-Linden 23786 Linden NJ 39 106465 not listed??? 1237 Consolidated Edison of NY, Inc. Cogen Tech-Linden 23786 Linden NJ 39 106465 not listed??? 1238 Constellation Power Source American Ref-Fuel 1 24010 63 20100 AMERICAN REF FUEL CO OF NIAGARA LP 50472 1239 Constellation Power Source American Ref-Fuel 2 24010 63 20100 AMERICAN REF FUEL CO OF NIAGARA LP 50472 1240 Constellation Power Source Chateaugay Power 23792 Chateaugay 33 18000 CHATEAUGAY POWER STATION 50277 1241 Constellation Power Source Ginna 23603 Ontario 117 499000 GINNA 6122 1242 Constellation Power Source High Acres 23767 Fairport 117 3200 HIGH ACRES GAS RECOVERY 50568 1243 Constellation Power Source Monroe Livingston 24207 Scottsville 55 2100 MONROE LIVINGSTON GAS RECOVERY 50565 1244 Constellation Power Source Nine Mile Pt 1 23575 Scriba 75 620800 NINE MILE POINT 2589 1245 Constellation Power Source Nine Mile Pt 2 23744 Scriba 75 1160000 NINE MILE POINT 2589 1246 Dynegy Power Inc. Danskammer 1 23586 Newburgh 71 59500 DANSKAMMER 2480 1247 Dynegy Power Inc. Danskammer 2 23589 Newburgh 71 64000 DANSKAMMER 2480 1248 Dynegy Power Inc. Danskammer 3 23590 Newburgh 71 132200 DANSKAMMER 2480 1249 Dynegy Power Inc. Danskammer 4 23591 Newburgh 71 233700 DANSKAMMER 2480 1250 Dynegy Power Inc. Danskammer 5 23592 Newburgh 71 2500 DANSKAMMER 2480 1251 Dynegy Power Inc. Danskammer 6 23592 Newburgh 71 2500 DANSKAMMER 2480 1252 Dynegy Power Inc. Roseton 1 23587 Newburgh 71 611300 ROSETON 8006 1253 Dynegy Power Inc. Roseton 2 23588 Newburgh 71 610500 ROSETON 8006 1254 Entergy Nuclear Fitzpatrick 1 23598 Scriba 75 848600 FITZAPATRICK 6110 1255 Entergy Nuclear Indian Pt 2 23530 Buchanan 119 990300 INDIAN POINT 2497 1256 Entergy Nuclear Indian Pt GT 1 24139 Buchanan 119 14200 INDIAN POINT 3 8907 1257 Entergy Nuclear Indian Pt GT 2 23659 Buchanan 119 30900 INDIAN POINT 3 8907 1258 Entergy Nuclear Indian Pt GT 3 24019 Buchanan 119 18500 INDIAN POINT 3 8907 1259 Entergy Nuclear Indian Pt 3 23531 Buchanan 119 994400 INDIAN POINT 3 8907 1260 Equus Power 1, LP Freeport CT 1 23764 Freeport 59 49500 PLANT NO 1 2678 1261 Florida Power & Light Far Rockaway GT1 24212 Far Rockaway 81 57900 FAR ROCKAWAY 2513 1262 Florida Power & Light Far Rockaway GT2 23815 Jamaica Bay 81 56800 FAR ROCKAWAY 2513 1263 Freeport, Village of Freeport 1-1 x Freeport 59 1500 PLANT NO 2 2679 1264 Freeport, Village of Freeport 1-2 x Freeport 59 2000 PLANT NO 2 2679 1265 Freeport, Village of Freeport 1-3 x Freeport 59 2000 PLANT NO 2 2679 1266 Freeport, Village of Freeport 1-4 x Freeport 59 5500 PLANT NO 2 2679 1267 Freeport, Village of Freeport 2-1 (Ret. 04/01/04) x Freeport 59 0 PLANT NO 2 2679 1268 Freeport, Village of Freeport 2-2 (Ret. 04/01/04) x Freeport 59 0 PLANT NO 2 2679 1269 Freeport, Village of Freeport 2-3 x Freeport 59 19000 PLANT NO 2 2679 1270 Freeport, Village of Freeport CT 2 23818 Freeport 59 48000 PLANT NO 1 2678 1271 Fulton Cogen Associates, L.P. Fulton Cogen 23766 Fulton 75 47100 FULTON COGENERATION ASSOCIATES 54138 1272 Greenport, Village of Greenport IC 4 x Greenport 103 1666 GREENPORT 2681 1273 Greenport, Village of Greenport IC 5 x Greenport 103 1667 GREENPORT 2681 1274 Greenport, Village of Greenport IC 6 x Greenport 103 1667 GREENPORT 2681 1275 Hawkeye Energy Greenport GT1 23814 Greenport 103 54500??? 1276 Indeck-Corinth LP Indeck-Corinth 23802 Corinth 91 133000 INDECK CORINTH ENERGY CENTER 50458 1277 Indeck-Olean LP Indeck-Olean 23982 Olean 9 83300 INDECK OLEAN ENERGY CENTER 54076 1278 Indeck-Oswego LP Indeck-Oswego 23783 Oswego 75 59900 INDECK OSWEGO ENERGY CENTER 50450 1279 Indeck-Yerkes LP Indeck-Yerkes 23781 Tonawanda 29 58000 INDECK YERKES ENERGY CENTER 50451 1280 Innovative Energy Systems Model City Energy 24167 Lewiston 63 5500 SENECA ENERGY 54782 1281 Innovative Energy Systems Ontario LFGE 23819 Canandaigua 69 3100 not listed 1282 Innovative Energy Systems Seneca Energy 1 23797 Seneca Falls 99 5300 SENECA ENERGY 54782 1283 Innovative Energy Systems Seneca Energy 2 23797 Seneca Falls 99 5300 SENECA ENERGY 54782 1284 Jamestown, City of Jamestown 5 x Jamestown 13 23052 S A CARLSON 2682 1285 Jamestown, City of Jamestown 6 x Jamestown 13 22548 S A CARLSON 2682 1286 Jamestown, City of Jamestown 7 x Jamestown 13 48500 S A CARLSON 2682 1287 KeySpan Ravenswood, Inc. Ravenswood ST 01 23533 Queens 81 386800 RAVENSWOOD 2500 1288 KeySpan Ravenswood, Inc. Ravenswood ST 02 23534 Queens 81 394100 RAVENSWOOD 2500 1289 KeySpan Ravenswood, Inc. Ravenswood ST 03 23535 Queens 81 968700 RAVENSWOOD 2500 1290 KeySpan Ravenswood, Inc. Ravenswood CC 04 23820 Queens 81 263200 RAVENSWOOD 2500 1291 KeySpan Ravenswood, Inc. Ravenswood 1 23729 Queens 81 12200 RAVENSWOOD 2500 1292 KeySpan Ravenswood, Inc. Ravenswood 4 24252 Queens 81 16300 RAVENSWOOD 2500 1293 KeySpan Ravenswood, Inc. Ravenswood 5 24254 Queens 81 17800 RAVENSWOOD 2500 1294 KeySpan Ravenswood, Inc. Ravenswood 6 24253 Queens 81 18000 RAVENSWOOD 2500 1295 KeySpan Ravenswood, Inc. Ravenswood 7 24255 Queens 81 18500 RAVENSWOOD 2500 1296 KeySpan Ravenswood, Inc. Ravenswood 8 24256 Queens 81 24800 RAVENSWOOD 2500 1297 KeySpan Ravenswood, Inc. Ravenswood 9 24257 Queens 81 25200 RAVENSWOOD 2500 1298 KeySpan Ravenswood, Inc. Ravenswood 10 24258 Queens 81 24700 RAVENSWOOD 2500 1299 KeySpan Ravenswood, Inc. Ravenswood 11 24259 Queens 81 23800 RAVENSWOOD 2500 1300 KeySpan Ravenswood, Inc. Ravenswood 2-1 24244 Queens 81 46700 RAVENSWOOD 2500 1301 KeySpan Ravenswood, Inc. Ravenswood 2-2 24245 Queens 81 44300 RAVENSWOOD 2500 1302 KeySpan Ravenswood, Inc. Ravenswood 2-3 24246 Queens 81 46800 RAVENSWOOD 2500 1303 KeySpan Ravenswood, Inc. Ravenswood 2-4 24247 Queens 81 47500 RAVENSWOOD 2500 1304 KeySpan Ravenswood, Inc. Ravenswood 3-1 24248 Queens 81 47500 RAVENSWOOD 2500 1305 KeySpan Ravenswood, Inc. Ravenswood 3-2 24249 Queens 81 46400 RAVENSWOOD 2500 1306 KeySpan Ravenswood, Inc. Ravenswood 3-3 24250 Queens 81 45400 RAVENSWOOD 2500 1307 KeySpan Ravenswood, Inc. Ravenswood 3-4 24251 Queens 81 45100 RAVENSWOOD 2500 1308 KeySpan Generation, LLC Barrett ST 01 23545 Island Park 59 196500 BARRETT 2511 1309 KeySpan Generation, LLC Barrett ST 02 23546 Island Park 59 195700 BARRETT 2511 1310 KeySpan Generation, LLC Barrett GT 01 23704 Island Park 59 20500 BARRETT 2511 1311 KeySpan Generation, LLC Barrett GT 02 23705 Island Park 59 20600 BARRETT 2511 1312 KeySpan Generation, LLC Barrett GT 03 23706 Island Park 59 19700 BARRETT 2511 1313 KeySpan Generation, LLC Barrett GT 04 23707 Island Park 59 19800 BARRETT 2511 1314 KeySpan Generation, LLC Barrett GT 05 23708 Island Park 59 20200 BARRETT 2511 1315 KeySpan Generation, LLC Barrett GT 06 23709 Island Park 59 20300 BARRETT 2511 1316 KeySpan Generation, LLC Barrett GT 07 23710 Island Park 59 19200 BARRETT 2511 1317 KeySpan Generation, LLC Barrett GT 08 23711 Island Park 59 20600 BARRETT 2511 1318 KeySpan Generation, LLC Barrett GT 09 23700 Island Park 59 50800 BARRETT 2511 1319 KeySpan Generation, LLC Barrett GT 10 23701 Island Park 59 52200 BARRETT 2511 1320 KeySpan Generation, LLC Barrett GT 11 23702 Island Park 59 48700 BARRETT 2511 1321 KeySpan Generation, LLC Barrett GT 12 23703 Island Park 59 51000 BARRETT 2511 1322 KeySpan Generation, LLC East Hampton 2 23722 E Hampton 103 2000 EAST HAMPTON 2512 1323 KeySpan Generation, LLC East Hampton 3 23722 E Hampton 103 2000 EAST HAMPTON 2512 1324 KeySpan Generation, LLC East Hampton 4 23722 E Hampton 103 2000 EAST HAMPTON 2512 1325 KeySpan Generation, LLC East Hampton GT 01 23717 E Hampton 103 24300 EAST HAMPTON 2512 1326 KeySpan Generation, LLC Far Rockaway ST 04 23548 Far Rockaway 81 112300 FAR ROCKAWAY 2513 1327 KeySpan Generation, LLC Glenwood GT 01 23712 Glenwood 59 18900 GLENWOOD GAS 7869 49

1328 KeySpan Generation, LLC Glenwood GT 02 23688 Glenwood 59 64700 GLENWOOD GAS 7869 1329 KeySpan Generation, LLC Glenwood GT 03 23689 Glenwood 59 65700 GLENWOOD GAS 7869 1330 KeySpan Generation, LLC Glenwood GT 04 24219 Glenwood 59 46700 GLENWOOD 2514 1331 KeySpan Generation, LLC Glenwood GT 05 24220 Glenwood 59 46200 GLENWOOD GAS 7869 1332 KeySpan Generation, LLC Glenwood ST 04 23550 Glenwood 59 110200 GLENWOOD 2514 1333 KeySpan Generation, LLC Glenwood ST 05 23614 Glenwood 59 101500 GLENWOOD 2514 1334 KeySpan Generation, LLC Holtsville 1 23690 Holtsville 103 63300 HOLTSVILLE 8007 1335 KeySpan Generation, LLC Holtsville 2 23691 Holtsville 103 63700 HOLTSVILLE 8007 1336 KeySpan Generation, LLC Holtsville 3 23692 Holtsville 103 64200 HOLTSVILLE 8007 1337 KeySpan Generation, LLC Holtsville 4 23693 Holtsville 103 63700 HOLTSVILLE 8007 1338 KeySpan Generation, LLC Holtsville 5 23694 Holtsville 103 63800 HOLTSVILLE 8007 1339 KeySpan Generation, LLC Holtsville 6 23695 Holtsville 103 64200 HOLTSVILLE 8007 1340 KeySpan Generation, LLC Holtsville 7 23696 Holtsville 103 70200 HOLTSVILLE 8007 1341 KeySpan Generation, LLC Holtsville 8 23697 Holtsville 103 60700 HOLTSVILLE 8007 1342 KeySpan Generation, LLC Holtsville 9 23698 Holtsville 103 67300 HOLTSVILLE 8007 1343 KeySpan Generation, LLC Holtsville 10 23699 Holtsville 103 67000 HOLTSVILLE 8007 1344 KeySpan Generation, LLC Montauk 2 23721 Montauk 103 2000 MONTAUK 2515 1345 KeySpan Generation, LLC Montauk 3 23721 Montauk 103 2000 MONTAUK 2515 1346 KeySpan Generation, LLC Montauk 4 23721 Montauk 103 2000 MONTAUK 2515 1347 KeySpan Generation, LLC Northport 1 23551 Northport 103 373000 NORTHPORT 2516 1348 KeySpan Generation, LLC Northport 2 23552 Northport 103 357700 NORTHPORT 2516 1349 KeySpan Generation, LLC Northport 3 23553 Northport 103 360000 NORTHPORT 2516 1350 KeySpan Generation, LLC Northport 4 23650 Northport 103 377200 NORTHPORT 2516 1351 KeySpan Generation, LLC Northport GT 23718 Northport 103 18700 NORTHPORT 2516 1352 KeySpan Generation, LLC Port Jefferson 1 x Port Jefferson 103 0 PORT JEFFERSON 2517 1353 KeySpan Generation, LLC Port Jefferson 2 x Port Jefferson 103 0 PORT JEFFERSON 2517 1354 KeySpan Generation, LLC Port Jefferson 3 23555 Port Jefferson 103 190200 PORT JEFFERSON 2517 1355 KeySpan Generation, LLC Port Jefferson 4 23616 Port Jefferson 103 192200 PORT JEFFERSON 2517 1356 KeySpan Generation, LLC Port Jefferson GT 01 23713 Port Jefferson 103 17700 PORT JEFFERSON 2517 1357 KeySpan Generation, LLC Port Jefferson GT 02 24210 P Jefferson 103 45100 PORT JEFFERSON 2517 1358 KeySpan Generation, LLC Port Jefferson GT 03 24211 P Jefferson 103 49800 PORT JEFFERSON 2517 1359 KeySpan Generation, LLC S Hampton 1 23720 South Hampton 103 12600 SOUTH HAMPTON 2519 1360 KeySpan Generation, LLC Shoreham 1 23715 Shoreham 103 64200 SHOREHAM 2518 1361 KeySpan Generation, LLC Shoreham 2 23716 Shoreham 103 22800 SHOREHAM 2518 1362 KeySpan Generation, LLC Southold 1 23719 Southold 103 14700 SOUTHOLD 2520 1363 KeySpan Generation, LLC Wading River 1 23522 Shoreham 103 97900 WADING RIVER 7146 1364 KeySpan Generation, LLC Wading River 2 23547 Shoreham 103 96500 WADING RIVER 7146 1365 KeySpan Generation, LLC Wading River 3 23601 Shoreham 103 100000 WADING RIVER 7146 1366 KeySpan Generation, LLC West Babylon 4 23714 West Babylon 103 63500 WEST BABYLON 2521 1367 Long Island Power Authority Babylon (RR) 23656 Babylon 103 14500 BABYLON RESOURCE RECOVERY FACILITY 50649 1368 Long Island Power Authority Hempstead (RR) 23647 Hempstead 59 65000 AMERICAN REF FUEL CO OF HEMPSTEAD 10642 1369 Long Island Power Authority Huntington 23656 Huntington 103 23700 HUNTINGTON RESOURCE RECOVERY FACILITY 50656 1370 Long Island Power Authority Islip(RR) 23656 Ronkonkoma 103 8300 MAC ARTHUR WASTE TO ENERGY FACILITY 51038 1371 Long Island Power Authority Oceanside (LF) 23656 Oceanside 59 1000 OCEANSIDE LANDFILL 50348 1372 Long Island Power Authority Trigen-NDEC 23656 Garden City 59 57000 TRIGEN NASSAU ENERGY CORP 52056 1373 Long Island Power Authority Yaphank (LF) 23656 Yaphank 103 3200??? 1374 Long Island Power Authority E. Northport (LF) x East Northport 103 0 NORTHPORT 2516 1375 Long Island Power Authority Oyster Bay (LF) x Bethpage 59 1300 OYSTER BAY ENERGY PARTNERS LP 50345 1376 Long Island Power Authority Smithtown (LF) x Smithtown 103 900 SMITHTOWN ENERGY PARTNERS LP 50344 1377 Long Island Power Authority South Oaks Hosp x Amityville 103 240 SOUTH OAKS HOSPITAL 50136 1378 Lyonsdale BioMass Lyonsdale Power 23803 Lyonsdale 49 20200 LYONSDALE POWER CO LLC 54526 1379 Mirant Corporation Bowline 1 23526 West Haverstraw 87 588000 BOWLINE POINT 2625 1380 Mirant Corporation Bowline 2 23595 West Haverstraw 87 502500 BOWLINE POINT 2625 1381 Mirant Corporation Grahamsville 23607 Grahamsville 105 16000 GRAHAMSVILLE 2627 1382 Mirant Corporation Hillburn GT 23639 Hillburn 87 51200 HILLBURN 2628 1383 Mirant Corporation Lovett 3 23632 Tomkins Cove 87 68500 LOVETT 2629 1384 Mirant Corporation Lovett 4 23642 Tomkins Cove 87 175500 LOVETT 2629 1385 Mirant Corporation Lovett 5 23593 Tomkins Cove 87 189700 LOVETT 2629 1386 Mirant Corporation Mongaup 1 23641 Forestburg 105 700 MONGAUP 2630 1387 Mirant Corporation Mongaup 2 23641 Forestburg 105 900 MONGAUP 2630 1388 Mirant Corporation Mongaup 3 23641 Forestburg 105 900 MONGAUP 2630 1389 Mirant Corporation Mongaup 4 23641 Forestburg 105 1000 MONGAUP 2630 1390 Mirant Corporation Rio 23641 Glen Spey 105 9300 MONGAUP 2630 1391 Mirant Corporation Shoemaker GT 23640 Middletown 71 43400 SHOEMAKER 2632 1392 Mirant Corporation Swinging Bridge 1 23641 Forestburg 105 7700 MONGAUP 2630 1393 Mirant Corporation Swinging Bridge 2 23641 Forestburg 105 4700 MONGAUP 2630 1394 National Energy & Gas Trans. Inc. Madison Wind Power 24146 Madison 53 11000 MADISON WINDPOWER 55769 1395 New York Power Authority Ashokan 1 23654 Ashokan 111 1200 ASHOKAN 88 1396 New York Power Authority Ashokan 2 23654 Ashokan 111 1200 ASHOKAN 88 1397 New York Power Authority Blenheim 1 23756 Gilboa NY 95 264700 BLENHEIM-GILBOA 2691 1398 New York Power Authority Blenheim 2 23757 Gilboa NY 95 264200 BLENHEIM-GILBOA 2691 1399 New York Power Authority Blenheim 3 23758 Gilboa NY 95 264200 BLENHEIM-GILBOA 2691 1400 New York Power Authority Blenheim 4 23759 Gilboa NY 95 264000 BLENHEIM-GILBOA 2691 1401 New York Power Authority Brentwood 24164 Brentwood 103 47000 RICHARD M FLYNN 7314 1402 New York Power Authority Crescent 1 24018 Crescent 1 3025 CRESCENT 2685 1403 New York Power Authority Crescent 2 24018 Crescent 1 3025 CRESCENT 2685 1404 New York Power Authority Crescent 3 24018 Crescent 1 3025 CRESCENT 2685 1405 New York Power Authority Crescent 4 24018 Crescent 1 3025 CRESCENT 2685 1406 New York Power Authority Flynn 23794 Holtsville 103 165400 HOLTSVILLE 8007 1407 New York Power Authority Gowanus 5 24156 Brooklyn 47 46900 GOWANUS GAS TURBINES STATION 2494 1408 New York Power Authority Gowanus 6 24157 Brooklyn 47 46900 GOWANUS GAS TURBINES STATION 2494 1409 New York Power Authority Harlem River 1 24160 Bronx 5 46500 not in egrid 1410 New York Power Authority Harlem River 2 24161 Bronx 5 46400 not listed 1411 New York Power Authority Hellgate 1 24158 Bronx 5 47000 not in egrid 1412 New York Power Authority Hellgate 2 24159 Bronx 5 46100 not listed 1413 New York Power Authority Jarvis 1 23743 Hinckley 65 4500 JARVIS (HINCKLEY) 808 1414 New York Power Authority Jarvis 2 23743 Hinckley 65 4500 JARVIS (HINCKLEY) 808 1415 New York Power Authority Kensico 1 23655 Kensico 119 700 KENSICO 650 1416 New York Power Authority Kensico 2 23655 Kensico 119 700 KENSICO 650 1417 New York Power Authority Kensico 3 23655 Kensico 119 700 KENSICO 650 1418 New York Power Authority Kent 24152 Brooklyn 47 47000 INDECK OLEAN ENERGY CENTER 54076 1419 New York Power Authority Lewiston PS 23760 Niagara Falls 63 240000 LEWISTON 2692 1420 New York Power Authority Moses Niagara 23760 Niagara Falls 63 2433300 MOSES NIAGARA 2693 1421 New York Power Authority Poletti 1 23519 Queens 81 885700 POLETTI 2491 1422 New York Power Authority Pouch 24155 Staten Island 85 47000 STONY BROOK COGENERATION PLANT 54149 1423 New York Power Authority St Lawrence - FDR 23600 Massena 89 855300 MOSES POWER DAM 2694 1424 New York Power Authority Vernon Blvd 2 24162 Queens 81 46000 RAVENSWOOD 2500 1425 New York Power Authority Vernon Blvd 3 24163 Queens 81 45300 1426 New York Power Authority Vischer Ferry 1 24020 Vischer Ferry 91 2875 VISCHER FERRY 2686 1427 New York Power Authority Vischer Ferry 2 24020 Vischer Ferry 91 2875 VISCHER FERRY 2686 1428 New York Power Authority Vischer Ferry 3 24020 Vischer Ferry 91 2875 VISCHER FERRY 2686 1429 New York Power Authority Vischer Ferry 4 24020 Vischer Ferry 91 2875 VISCHER FERRY 2686 1430 New York Power Authority ADG FC x Yonkers 119 200 not listed 1431 New York Power Authority Bronx Zoo x Bronx 5 2000 BRONX ZOO 50427 1432 New York Power Authority Photovoltaic x Yonkers 119 480 not listed 1433 New York State Elec. & Gas Corp. Alice Falls 1 23915 Ausable 19 1640 ALICE FALLS HYDROELECTRIC PROJECT 54391 1434 New York State Elec. & Gas Corp. Alice Falls 2 23915 Ausable 19 660 ALICE FALLS HYDROELECTRIC PROJECT 54391 1435 New York State Elec. & Gas Corp. Allegheny 8 23528 Kittanning 5 15940 PROSEPECT 2599 1436 New York State Elec. & Gas Corp. Allegheny 9 23528 Kittanning 5 21560 PROSEPECT 2599 1437 New York State Elec. & Gas Corp. Auburn - State St. 24147 Auburn 11 7500 PROSEPECT 2599 50

1438 New York State Elec. & Gas Corp. Cadyville 1 23628 Schuyler Falls 19 864 CADYVILLE 2522 1439 New York State Elec. & Gas Corp. Cadyville 2 23628 Schuyler Falls 19 864 CADYVILLE 2522 1440 New York State Elec. & Gas Corp. Cadyville 3 23628 Schuyler Falls 19 3072 CADYVILLE 2522 1441 New York State Elec. & Gas Corp. High Falls 1 23628 Saranac 19 4382 HIGH FALLS 2530 1442 New York State Elec. & Gas Corp. High Falls 2 23628 Saranac 19 4382 HIGH FALLS 2530 1443 New York State Elec. & Gas Corp. High Falls 3 23628 Saranac 19 7736 HIGH FALLS 2530 1444 New York State Elec. & Gas Corp. Kent Falls 1 23628 Schuyler Falls 19 2975 KENT FALLS 2532 1445 New York State Elec. & Gas Corp. Kent Falls 2 23628 Schuyler Falls 19 2975 KENT FALLS 2532 1446 New York State Elec. & Gas Corp. Kent Falls 3 23628 Schuyler Falls 19 5950 KENT FALLS 2532 1447 New York State Elec. & Gas Corp. Mill C 1 23628 Plattsburgh 19 968 MILL C 6486 1448 New York State Elec. & Gas Corp. Mill C 2 23628 Plattsburgh 19 1257 MILL C 6486 1449 New York State Elec. & Gas Corp. Mill C 3 23628 Plattsburgh 19 3675 MILL C 6486 1450 New York State Elec. & Gas Corp. Rainbow Falls 1 23628 Ausable 19 800 RAINBOW FALLS 6526 1451 New York State Elec. & Gas Corp. Rainbow Falls 2 23628 Ausable 19 800 RAINBOW FALLS 6526 1452 New York State Elec. & Gas Corp. Mechanicville 1 23645 Stillwater 91 9650 UPPER MECHANICVILLE 625 1453 New York State Elec. & Gas Corp. Mechanicville 2 23645 Stillwater 91 9650 UPPER MECHANICVILLE 625 1454 New York State Elec. & Gas Corp. Indeck-Silver Springs 23768 Silver Springs 121 59700 INDECK SILVER SPRINGS ENERGY CENTER 50449 1455 New York State Elec. & Gas Corp. Lockport Cogen Pr 23791 Lockport 63 46098 LOCKPORT ENERGY ASSOC LP LOCKPORT COGEN FACIL 54041 1456 New York State Elec. & Gas Corp. Lockport Cogen Pr 23791 Lockport 63 46098 LOCKPORT ENERGY ASSOC LP LOCKPORT COGEN FACIL 54041 1457 New York State Elec. & Gas Corp. Lockport Cogen Pr 23791 Lockport 63 46098 LOCKPORT ENERGY ASSOC LP LOCKPORT COGEN FACIL 54041 1458 New York State Elec. & Gas Corp. Lockport Cogen Pr 23791 Lockport 63 78600 LOCKPORT ENERGY ASSOC LP LOCKPORT COGEN FACIL 54041 1459 New York State Elec. & Gas Corp. Saranac Energy 1 23793 Plattsburgh 19 80498 SARANAC FACILITY 54574 1460 New York State Elec. & Gas Corp. Saranac Energy 2 23793 Plattsburgh 19 80498 SARANAC FACILITY 54574 1461 New York State Elec. & Gas Corp. Saranac Energy 3 23793 Plattsburgh 19 79504 SARANAC FACILITY 54574 1462 New York State Elec. & Gas Corp. Lower Saranac 1 23913 Schuyler Falls 19 2866 LOWER SARANAC HYDROELECTRIC FACILITY 10214 1463 New York State Elec. & Gas Corp. Lower Saranac 2 23913 Schuyler Falls 19 2867 LOWER SARANAC HYDROELECTRIC FACILITY 10214 1464 New York State Elec. & Gas Corp. Lower Saranac 3 23913 Schuyler Falls 19 2867 LOWER SARANAC HYDROELECTRIC FACILITY 10214 1465 New York State Elec. & Gas Corp. Walden Hydro 24148 Walden 71 1400 WALDEN 10848 1466 New York State Elec. & Gas Corp. AA Dairy x Ithaca 109 100 not listed 1467 New York State Elec. & Gas Corp. Auburn - Mill St. x Auburn 11 400? 1468 New York State Elec. & Gas Corp. Auburn - No. Div.St x Auburn 11 800? 1469 New York State Elec. & Gas Corp. Chasm Hydro x Chateaugay 33 1000 CHASM 2550 1470 New York State Elec. & Gas Corp. Cowee x Berlin 83 500 not listed 1471 New York State Elec. & Gas Corp. Croton Fall Hydro x North Salem 119 200 not listed 1472 New York State Elec. & Gas Corp. Goodyear Lake x Milford 75 1500 GOODYEAR LAKE PLANT 50079 1473 New York State Elec. & Gas Corp. Harris Lake x Newcomb 31 1700 HARRIS LAKE 2528 1474 New York State Elec. & Gas Corp. Montville Falls x Moravia 11 200? 1475 New York State Elec. & Gas Corp. Triton x Chateaugay 33 2800 CHATEAUGAY HIGH FALLS HYDRO 50093 1476 New York State Elec. & Gas Corp. Waterloo 2 x Waterloo 99 534 not listed 1477 New York State Elec. & Gas Corp. Waterloo 3 x Waterloo 99 533 not listed 1478 New York State Elec. & Gas Corp. Waterloo 4 x Waterloo 99 533 not listed 1479 NFR Power, Inc. Energy Systems North East 23901 North East 49 83500 WARBASSE COGEN FACILITY 50405 1480 Niagara Mohawk Power Corp.(1) Adir HY-Hudson Falls 24011 Hudson Falls 91 43700 HUDSON FALLS HYDROELECTRIC PROJECT 54953 1481 Niagara Mohawk Power Corp.(1) Adir HY-South Glens Falls 24028 Moreau 91 15000 SOUTH GLENS FALLS HYDROELECTRIC PROJECT 54772 1482 Niagara Mohawk Power Corp.(1) Adir-Resource Recovery 23798 115 11800 ADIRONDACK RESOURCE RECOVERY FACILITY 10503 1483 Niagara Mohawk Power Corp.(1) CHI-Lachute 23643 31 8500 LACHUTE HYDRO LOWER 10752 1484 Niagara Mohawk Power Corp.(1) DD Corp-Dolgeville 23807 Dolgeville 43 6000 DOLGEVILLE HYDROELECTRIC 10238 1485 Niagara Mohawk Power Corp.(1) Fortis Energy - Philadelphia x 45 3300 PHILADELPHIA 10197 1486 Niagara Mohawk Power Corp.(1) Fortis Energy - Moose River 24016 49 11900 MOOSE RIVER 10196 1487 Niagara Mohawk Power Corp.(1) General Mills Inc 23808 29 4700 GENERAL MILLS INC BUFFALO 54564 1488 Niagara Mohawk Power Corp.(1) Glen Park Assoc. 23778 45 41600 GLEN PARK HYDROELECTRIC PROJECT 50512 1489 Niagara Mohawk Power Corp.(1) International Paper - Curtis 23988 Corinth 91 30550 HUDSON RIVER MILL 54088 1490 Niagara Mohawk Power Corp.(1) International Paper - Palmer 23988 Corinth 91 30550 CURTIS PALMER HYDROELECTRIC 54580 1491 Niagara Mohawk Power Corp.(1) Little Falls Hydro 24013 Little Falls 43 13300 LITTLE FALLS HYDRO 51034 1492 Niagara Mohawk Power Corp.(1) Onondaga County 23987 67 32800 ONONDAGA COUNTY RESOURCE RECOVERY FACILITY 50662 1493 Niagara Mohawk Power Corp.(1) Oxbow Power- N.Tonawanda 24026 N Tonawanda 29 59400 OXBOW POWER OF NORTH TONAWANDA NEW YORK INC 54131 1494 Niagara Mohawk Power Corp.(1) Pyrites Assoc. 24023 Canton 89 7200 PYRITES PLANT 10547 1495 Niagara Mohawk Power Corp.(2) Adams Hydro x 45 0 not listed 1496 Niagara Mohawk Power Corp.(2) Algon.-Burt Dam Assoc. 23774 63 323 not listed 1497 Niagara Mohawk Power Corp.(2) Algon.-Christine.Falls 23643 41 802 not listed 1498 Niagara Mohawk Power Corp.(2) Algon.-Cranberry. Lake x 49 290 not listed 1499 Niagara Mohawk Power Corp.(2) Algon.-Forresport 23633 65 2923 not listed 1500 Niagara Mohawk Power Corp.(2) Algon.-Herkimer 23633 43 64 HERKIMER 52057 1501 Niagara Mohawk Power Corp.(2) Algon.-Hollow Dam Power x 89 746 HOLLOW DAM POWER CO PARTNERSHIP 10124 1502 Niagara Mohawk Power Corp.(2) Algon.-Kayuta 23633 65 436 not listed 1503 Niagara Mohawk Power Corp.(2) Algon.-Ogdensburg x 89 2325 not listed 1504 Niagara Mohawk Power Corp.(2) Algon.-Otter Creek x 49 327 not listed 1505 Niagara Mohawk Power Corp.(2) Azure Mnt. Pwr Co x 33 521 not listed 1506 Niagara Mohawk Power Corp.(2) Beaver Falls #1 x 49 0 BEAVER FALLS I 10490 1507 Niagara Mohawk Power Corp.(2) Beaver Falls #2 x 49 584 BEAVER FALLS II 54691 1508 Niagara Mohawk Power Corp.(2) Bellows Towers x 33 178 not listed 1509 Niagara Mohawk Power Corp.(2) Black River Hyd#1 23633 Port Leyden 49 950 PORT LEYDEN HYDROELECTRIC PROJECT 10817 1510 Niagara Mohawk Power Corp.(2) Black River Hyd#2 23633 Port Leyden 49 493 BLACK RIVER HYDRO ASSOCIATES 10687 1511 Niagara Mohawk Power Corp.(2) Black River Hyd#3 23633 Port Leyden 49 3232 BLACK RIVER HYDRO ASSOCIATES 10687 1512 Niagara Mohawk Power Corp.(2) Boralex - Middle Falls 23643 Easton 115 1758 MIDDLE FALLS HYDROELECTRIC 10219 1513 Niagara Mohawk Power Corp.(2) Cal Ban Power 23774-10 1514 Niagara Mohawk Power Corp.(2) Cellu-Tissue Corp - Natural Dam x Natural Dam 89 6 CELLU TISSUE CORP NATURAL DAM MILL 54878 1515 Niagara Mohawk Power Corp.(2) Champlain Spinner 23643 31 360 not listed 1516 Niagara Mohawk Power Corp.(2) CHI Dexter Hydro 23643 Dexter 45 3859 DEXTER PLANT 10538 1517 Niagara Mohawk Power Corp.(2) CHI Diamond Is HY 23643 Watertown 45 1115 DIAMOND ISLAND PLANT 10540 1518 Niagara Mohawk Power Corp.(2) CHI Fowler 23643 Fowler 49 251 not listed 1519 Niagara Mohawk Power Corp.(2) CHI Hailsboro #3 23643 Hailsboro 89 666 HAILESBORO 4 PLANT 10544 1520 Niagara Mohawk Power Corp.(2) CHI Hailsboro #4 23643 Hailsboro 89 1639 HAILESBORO 4 PLANT 10544 1521 Niagara Mohawk Power Corp.(2) CHI Hailsboro #6 23643 Hailsboro 89 744 HAILESBORO 4 PLANT 10544 1522 Niagara Mohawk Power Corp.(2) CHI Theresa Hydro 23643 Theresa 89 1154 THERESA PLANT 10539 1523 Niagara Mohawk Power Corp.(2) Chittenden Falls 23643 89 448 not listed 1524 Niagara Mohawk Power Corp.(2) City of Oswego (H.D.) 24041 75 8212 PHOENIX HYDRO PROJECT 54865 1525 Niagara Mohawk Power Corp.(2) City of Utica - Sand Road 23633 65 179 not listed 1526 Niagara Mohawk Power Corp.(2) City of Utica -Trenton Falls 23633 65 107 not listed 1527 Niagara Mohawk Power Corp.(2) City of Watertown 23805 45 3895 CITY OF WATERTOWN 2700 1528 Niagara Mohawk Power Corp.(2) City of Watervliet 23643 1 924 NORMANSKILL HYDRO PROJECT 50123 1529 Niagara Mohawk Power Corp.(2) Cons. HY-Victory 23643 91 1342 VICTORY MILLS 10902 1530 Niagara Mohawk Power Corp.(2) Copenhagen Assoc. x Copenhagen 49 1721 COPENHAGEN PLANT 10545 1531 Niagara Mohawk Power Corp.(2) Cottrell Paper 23643 91 209 1532 Niagara Mohawk Power Corp.(2) Empire HY Partner x 49 847 not listed 1533 Niagara Mohawk Power Corp.(2) Finch Pruyn x 113 685 FINCH PRUYN CO INC 10511 1534 Niagara Mohawk Power Corp.(2) Fort Miller Assoc 23643 91 3858 FORT MILLER HYDROELECTRIC FACILITY 50514 1535 Niagara Mohawk Power Corp.(2) Fortis Energy - Diana x 49 1352 DIANA HYDROELECTRIC 10237 1536 Niagara Mohawk Power Corp.(2) Franklin Hydro 24054 33 172 FRANKLIN 2564 1537 Niagara Mohawk Power Corp.(2) Green Island Power Authority x Green Island 1 5428 GREEN ISLAND 6528 1538 Niagara Mohawk Power Corp.(2) Hampshire Paper x 89 3343 HAMPSHIRE PAPER CO INC 10116 1539 Niagara Mohawk Power Corp.(2) Hewittville Hydro x 89 2485 HEWITTVILLE HYDROELECTRIC 50268 1540 Niagara Mohawk Power Corp.(2) Hollings&Vose-Center x 115 298 CLARKS MILL UPPER 52067 1541 Niagara Mohawk Power Corp.(2) Hollings&Vose-Lower x 115 3 CLARKS MILL UPPER 52067 1542 Niagara Mohawk Power Corp.(2) Hollings&Vose-Upper x 115 798 CLARKS MILL UPPER 52067 1543 Niagara Mohawk Power Corp.(2) Hoosick Falls 23643 83 448 not listed 1544 Niagara Mohawk Power Corp.(2) Hydrocarbon-Algny 23774 3 0 not listed 1545 Niagara Mohawk Power Corp.(2) Indian Falls HY x 45 358 not listed 1546 Niagara Mohawk Power Corp.(2) Kings Falls x 49 988 not listed 1547 Niagara Mohawk Power Corp.(2) Laidlaw Energy 23774 Ellicottville 9 0 LAIDLAW ENERGY & ENVIRONMENTAL INC 10403 51

1548 Niagara Mohawk Power Corp.(2) Laidlaw Energy 23774 Ellicottville 9 0 LAIDLAW ENERGY & ENVIRONMENTAL INC 10403 1549 Niagara Mohawk Power Corp.(2) Laquidara-Long Falls x 45 2050 LONGFALLS FACILITY 54548 1550 Niagara Mohawk Power Corp.(2) Lyonsdale Assoc. (Burrows) 24055 Lyons Falls 49 2840 LYONSDALE ASSOCIATES 50652 1551 Niagara Mohawk Power Corp.(2) Mechanicville x 91 1718 UPPER MECHANICVILLE 625 1552 Niagara Mohawk Power Corp.(2) MM Albany Energy x 1 1680 ALBANY LANDFILL 55155 1553 Niagara Mohawk Power Corp.(2) Mt. Ida Assoc. 23643 83 1661 MT IDA HYDROELECTRIC 50031 1554 Niagara Mohawk Power Corp.(2) Newport HY Assoc 23633 43 1333 NEWPORT HYDRO 50354 1555 Niagara Mohawk Power Corp.(2) Northbrook - Lyons Falls P&P x 49 6658 not listed 1556 Niagara Mohawk Power Corp.(2) Nottingham High School 23634 67 0 not listed 1557 Niagara Mohawk Power Corp.(2) Onondaga Energy Partners 23634 67 413 ONONDAGA ENERGY PARTNERS LP 50346 1558 Niagara Mohawk Power Corp.(2) Oswego County 23634 75 613 OSWEGO COUNTY ENERGY RECOVERY 50907 1559 Niagara Mohawk Power Corp.(2) Oswego HY Partners (Phoenix) 23634 67 1728 TRIGEN SYRACUSE ENERGY CORP 50651 1560 Niagara Mohawk Power Corp.(2) Riverrat Glass&Electric 23643 31 397 not listed 1561 Niagara Mohawk Power Corp.(2) Sandy Hollow HY x 45 486 not listed 1562 Niagara Mohawk Power Corp.(2) Seneca Limited 23634 67 175 not listed 1563 Niagara Mohawk Power Corp.(2) Stevens&Thompson Paper Co. 23643 115 7036 DAHOWA HYDRO 50280 1564 Niagara Mohawk Power Corp.(2) Stillwater Assoc. x 43 1396 STILLWATER RESERVOIR HYDRO 50513 1565 Niagara Mohawk Power Corp.(2) Stillwater HY Partners 23643 91 1916 STILLWATER HYDRO ELECTRIC PROJECT 54395 1566 Niagara Mohawk Power Corp.(2) Synergics - Middle Greenwich 23643 115 105 CARVER FALLS 6456 1567 Niagara Mohawk Power Corp.(2) Synergics - Union Falls 23643 19 2380 UNION FALLS 50176 1568 Niagara Mohawk Power Corp.(2) Synergics - Upper Greenwich 23643 115 310 CENTER FALLS 10853 1569 Niagara Mohawk Power Corp.(2) Tannery Island x 45 1487 TANNERY ISLAND POWER CO 50416 1570 Niagara Mohawk Power Corp.(2) Town of Wells 23643 Wells 41 417 not listed 1571 Niagara Mohawk Power Corp.(2) Unionville Hydro x 89 2621 UNIONVILLE HYDRO PROJ 2499 NY 50269 1572 Niagara Mohawk Power Corp.(2) Valatie Falls 23643 21 72? 1573 Niagara Mohawk Power Corp.(2) Valley Falls Assoc. 23643 83 1799 VALLEY FALLS HYDROELECTRIC FACILITY 50034 1574 Niagara Mohawk Power Corp.(2) Village of Gouverneur 23568 89 63 not listed 1575 Niagara Mohawk Power Corp.(2) Village of Potsdam x 89 524 not listed 1576 Niagara Mohawk Power Corp.(2) Village of Saranac Lake x 33 82 not listed 1577 Niagara Mohawk Power Corp.(2) West End Dam Assoc. x 45 4226 WEST END DAM HYDROELECTRIC PROJECT 50759 1578 Niagara Mohawk Power Corp.(2) William Allen x 53 1 not listed 1579 Niagara Mohawk Power Corp.(3) Bannertown P&L x 35 2 not listed 1580 Niagara Mohawk Power Corp.(3) Begent, H.A. x 65 1 not listed 1581 Niagara Mohawk Power Corp.(3) Bergan, W.C. x 57 10 not listed 1582 Niagara Mohawk Power Corp.(3) Blenheim Wind Power x 39 10 not listed 1583 Niagara Mohawk Power Corp.(3) Chapman, Jerry x 63 10 not listed 1584 Niagara Mohawk Power Corp.(3) Devine, W.T. x 45 18 not listed 1585 Niagara Mohawk Power Corp.(3) Dibble, C. x 37 4 not listed 1586 Niagara Mohawk Power Corp.(3) Fitzpatrick, R. x 57 2 not listed 1587 Niagara Mohawk Power Corp.(3) Hamond, E. x 57 2 not listed 1588 Niagara Mohawk Power Corp.(3) Hedrick, Robert x 63 10 not listed 1589 Niagara Mohawk Power Corp.(3) Helmer, Paul x 75 4 not listed 1590 Niagara Mohawk Power Corp.(3) Hess, Jos.& Kath. x 45 10 not listed 1591 Niagara Mohawk Power Corp.(3) Higgins, W.J. x 37 4 not listed 1592 Niagara Mohawk Power Corp.(3) Hurd, Dr. D.W. x 65 10 not listed 1593 Niagara Mohawk Power Corp.(3) Lewandowski, Paul x 69 5 not listed 1594 Niagara Mohawk Power Corp.(3) Marsden, Russel x 75 2 not listed 1595 Niagara Mohawk Power Corp.(3) Prossner, D.M. x 65 1 not listed 1596 Niagara Mohawk Power Corp.(3) Ryan, Robert x 65 10 not listed 1597 Niagara Mohawk Power Corp.(3) Schiefer, M. x - 20 1598 Niagara Mohawk Power Corp.(3) Staples, Gary D. x 89 10 not listed 1599 Niagara Mohawk Power Corp.(3) Stellone, Gerald x 83 4 not listed 1600 Niagara Mohawk Power Corp.(3) Tallmon, Larry x 51 12 not listed 1601 Niagara Mohawk Power Corp.(3) Van Strander, J.M x 65 1 not listed 1602 Niagara Mohawk Power Corp.(3) Weber, Richard x Champion 45 4 not listed 1603 Niagara Mohawk Power Corp.(3) Wind Development x 55 75 not listed 1604 Niagara Mohawk Power Corp.(3) Woodin, D. x 9 1 WETHERSFIELD 55368 1605 Niagara Mohawk Power Corp.(3) Zingler, Rudy x 73 5 not listed 1606 NRG Power, Inc. Arthur Kill ST 2 23512 Staten Island 85 350400 ARTHUR KILL GENERATION STATION 2490 1607 NRG Power, Inc. Arthur Kill ST 3 23513 Staten Island 85 502800 ARTHUR KILL GENERATION STATION 2490 1608 NRG Power, Inc. Arthur Kill GT 1 23520 Staten Island 85 14100 ARTHUR KILL GENERATION STATION 2490 1609 NRG Power, Inc. Astoria GT 05 24106 Queens 81 15500 ASTORIA GAS TURBINES 55243 1610 NRG Power, Inc. Astoria GT 07 24107 Queens 81 16400 ASTORIA GAS TURBINES 55243 1611 NRG Power, Inc. Astoria GT 08 24108 Queens 81 16700 ASTORIA GAS TURBINES 55243 1612 NRG Power, Inc. Astoria GT 10 24110 Queens 81 30900 ASTORIA GAS TURBINES 55243 1613 NRG Power, Inc. Astoria GT 11 24225 Queens 81 28700 ASTORIA GAS TURBINES 55243 1614 NRG Power, Inc. Astoria GT 12 24226 Queens 81 26600 ASTORIA GAS TURBINES 55243 1615 NRG Power, Inc. Astoria GT 13 24227 Queens 81 29800 ASTORIA GAS TURBINES 55243 1616 NRG Power, Inc. Astoria GT 2-1 24094 Queens 81 46700 ASTORIA GAS TURBINES 55243 1617 NRG Power, Inc. Astoria GT 2-2 24095 Queens 81 47300 ASTORIA GAS TURBINES 55243 1618 NRG Power, Inc. Astoria GT 2-3 24096 Queens 81 47200 ASTORIA GAS TURBINES 55243 1619 NRG Power, Inc. Astoria GT 2-4 24097 Queens 81 45800 ASTORIA GAS TURBINES 55243 1620 NRG Power, Inc. Astoria GT 3-1 24098 Queens 81 46800 ASTORIA GAS TURBINES 55243 1621 NRG Power, Inc. Astoria GT 3-2 24099 Queens 81 48400 ASTORIA GAS TURBINES 55243 1622 NRG Power, Inc. Astoria GT 3-3 24100 Queens 81 47400 ASTORIA GAS TURBINES 55243 1623 NRG Power, Inc. Astoria GT 3-4 24101 Queens 81 47500 ASTORIA GAS TURBINES 55243 1624 NRG Power, Inc. Astoria GT 4-1 24102 Queens 81 47600 ASTORIA GAS TURBINES 55243 1625 NRG Power, Inc. Astoria GT 4-2 24103 Queens 81 47400 ASTORIA GAS TURBINES 55243 1626 NRG Power, Inc. Astoria GT 4-3 24104 Queens 81 48300 ASTORIA GAS TURBINES 55243 1627 NRG Power, Inc. Astoria GT 4-4 24105 Queens 81 49200 ASTORIA GAS TURBINES 55243 1628 NRG Power, Inc. Dunkirk 1 23563 Dunkirk 13 85200 DUNKIRK GENERATING STATION 2554 1629 NRG Power, Inc. Dunkirk 2 23564 Dunkirk 13 100700 DUNKIRK GENERATING STATION 2554 1630 NRG Power, Inc. Dunkirk 3 23565 Dunkirk 13 208300 DUNKIRK GENERATING STATION 2554 1631 NRG Power, Inc. Dunkirk 4 23566 Dunkirk 13 199500 DUNKIRK GENERATING STATION 2554 1632 NRG Power, Inc. Dunkirk IC 2 x Dunkirk 13 500 DUNKIRK GENERATING STATION 2554 1633 NRG Power, Inc. Huntley 63 23557 Tonawanda 29 0 HUNTLEY GENERATING STATION 2549 1634 NRG Power, Inc. Huntley 64 23558 Tonawanda 29 0 HUNTLEY GENERATING STATION 2549 1635 NRG Power, Inc. Huntley 65 23559 Tonawanda 29 85000 HUNTLEY GENERATING STATION 2549 1636 NRG Power, Inc. Huntley 66 23560 Tonawanda 29 85000 HUNTLEY GENERATING STATION 2549 1637 NRG Power, Inc. Huntley 67 23561 Tonawanda 29 194000 HUNTLEY GENERATING STATION 2549 1638 NRG Power, Inc. Huntley 68 23562 Tonawanda 29 202000 HUNTLEY GENERATING STATION 2549 1639 NRG Power, Inc. Huntley IC 1 x Tonawanda 29 700 HUNTLEY GENERATING STATION 2549 1640 NRG Power, Inc. Ilion 23567 Ilion 43 64800 INDECK ILION ENERGY CENTER 50459 1641 NRG Power, Inc. Oswego 5 23606 Oswego 75 852800 OSWEGO HARBOR POWER 2594 1642 NRG Power, Inc. Oswego 6 23613 Oswego 75 835800 OSWEGO HARBOR POWER 2594 1643 NRG Power, Inc. Oswego IC 1 x Oswego 75 700 OSWEGO HARBOR POWER 2594 1644 NRG Power, Inc. Oswego IC 2 x Oswego 75 800 OSWEGO HARBOR POWER 2594 1645 NRG Power, Inc. Oswego IC 3 x Oswego 75 800 OSWEGO HARBOR POWER 2594 1646 NYSEG Solutions, Inc. Carthage Energy 23857 Carthage 45 65200 CARTHAGE ENERGY LLC 10620 1647 NYSEG Solutions, Inc. South Glens Falls Energy 23858 S Glens Falls 91 66700 SOUTH GLENS FALLS ENERGY LLC 10618 1648 Onondaga Cogeneration, LP Onondaga Cogen 23986 67 88000 ONONDAGA COGENERATION 50855 1649 Orange and Rockland Utilities Buttermilk Falls x Highland Falls 71 100 not listed 1650 Orange and Rockland Utilities Intl. Crossroads x Mahwah NJ 3 3000 not listed 1651 Orange and Rockland Utilities Landfill G.Part19 x Goshen 71 2500 ORANGE COUNTY NEW YORK 10047 1652 Orange and Rockland Utilities Middletown LFG x Goshen 71 3000 MIDDLETOWN LFG LTD CONVERSION SITE 2&3 10549 1653 PP&L EnergyPlus Co. Pilgrim GT1 24216 Pilgrim 103 49000 RICHARD M FLYNN 7314 1654 PP&L EnergyPlus Co. Pilgrim GT2 24217 Pilgrim 103 49000 RICHARD M FLYNN 7314 1655 PP&L EnergyPlus Co. Shoreham GT3 24213 Shoreham 103 49000 SHOREHAM 2518 1656 PP&L EnergyPlus Co. Shoreham GT4 24214 Shoreham 103 49000 SHOREHAM 2518 1657 PSEG Power New York Inc. Albany 1 (Ret. 10/04/04) 23571 Bethlehem 1 0 ALBANY GENERATING STATION 2539 52

1658 PSEG Power New York Inc. Albany 2 (Ret. 03/01/05) 23572 Bethlehem 1 0 ALBANY GENERATING STATION 2539 1659 PSEG Power New York Inc. Albany 3 (Ret. 03/01/05) 23573 Bethlehem 1 0 ALBANY GENERATING STATION 2539 1660 PSEG Power New York Inc. Albany 4 (Ret. 03/01/05) 23574 Bethlehem 1 0 ALBANY GENERATING STATION 2539 1661 Reliant Energy Astoria 2 24149 Queens 81 181300 ASTORIA GENERATING STATION 8906 1662 Reliant Energy Astoria 3 23516 Queens 81 372400 ASTORIA GENERATING STATION 8906 1663 Reliant Energy Astoria 4 23517 Queens 81 376200 ASTORIA GENERATING STATION 8906 1664 Reliant Energy Astoria 5 23518 Queens 81 351100 ASTORIA GENERATING STATION 8906 1665 Reliant Energy Astoria GT 01 23523 Queens 81 0 ASTORIA GENERATING STATION 8906 1666 Reliant Energy Gowanus 1-1 24077 Brooklyn 47 22900 GOWANUS GAS TURBINES STATION 2494 1667 Reliant Energy Gowanus 1-2 24078 Brooklyn 47 22200 GOWANUS GAS TURBINES STATION 2494 1668 Reliant Energy Gowanus 1-3 24079 Brooklyn 47 23000 GOWANUS GAS TURBINES STATION 2494 1669 Reliant Energy Gowanus 1-4 24080 Brooklyn 47 22100 GOWANUS GAS TURBINES STATION 2494 1670 Reliant Energy Gowanus 1-5 24084 Brooklyn 47 23000 GOWANUS GAS TURBINES STATION 2494 1671 Reliant Energy Gowanus 1-6 24111 Brooklyn 47 21700 GOWANUS GAS TURBINES STATION 2494 1672 Reliant Energy Gowanus 1-7 24112 Brooklyn 47 23000 GOWANUS GAS TURBINES STATION 2494 1673 Reliant Energy Gowanus 1-8 24113 Brooklyn 47 22600 GOWANUS GAS TURBINES STATION 2494 1674 Reliant Energy Gowanus 2-1 24114 Brooklyn 47 21700 GOWANUS GAS TURBINES STATION 2494 1675 Reliant Energy Gowanus 2-2 24115 Brooklyn 47 20200 GOWANUS GAS TURBINES STATION 2494 1676 Reliant Energy Gowanus 2-3 24116 Brooklyn 47 19500 GOWANUS GAS TURBINES STATION 2494 1677 Reliant Energy Gowanus 2-4 24117 Brooklyn 47 24400 GOWANUS GAS TURBINES STATION 2494 1678 Reliant Energy Gowanus 2-5 24118 Brooklyn 47 23500 GOWANUS GAS TURBINES STATION 2494 1679 Reliant Energy Gowanus 2-6 24119 Brooklyn 47 22300 GOWANUS GAS TURBINES STATION 2494 1680 Reliant Energy Gowanus 2-7 24120 Brooklyn 47 22700 GOWANUS GAS TURBINES STATION 2494 1681 Reliant Energy Gowanus 2-8 24121 Brooklyn 47 22800 GOWANUS GAS TURBINES STATION 2494 1682 Reliant Energy Gowanus 3-1 24122 Brooklyn 47 22500 GOWANUS GAS TURBINES STATION 2494 1683 Reliant Energy Gowanus 3-2 24123 Brooklyn 47 20200 GOWANUS GAS TURBINES STATION 2494 1684 Reliant Energy Gowanus 3-3 24124 Brooklyn 47 20400 GOWANUS GAS TURBINES STATION 2494 1685 Reliant Energy Gowanus 3-4 24125 Brooklyn 47 23700 GOWANUS GAS TURBINES STATION 2494 1686 Reliant Energy Gowanus 3-5 24126 Brooklyn 47 22400 GOWANUS GAS TURBINES STATION 2494 1687 Reliant Energy Gowanus 3-6 24127 Brooklyn 47 20800 GOWANUS GAS TURBINES STATION 2494 1688 Reliant Energy Gowanus 3-7 24128 Brooklyn 47 22800 GOWANUS GAS TURBINES STATION 2494 1689 Reliant Energy Gowanus 3-8 24129 Brooklyn 47 23700 GOWANUS GAS TURBINES STATION 2494 1690 Reliant Energy Gowanus 4-1 24130 Brooklyn 47 22600 GOWANUS GAS TURBINES STATION 2494 1691 Reliant Energy Gowanus 4-2 24131 Brooklyn 47 23400 GOWANUS GAS TURBINES STATION 2494 1692 Reliant Energy Gowanus 4-3 24132 Brooklyn 47 21200 GOWANUS GAS TURBINES STATION 2494 1693 Reliant Energy Gowanus 4-4 24133 Brooklyn 47 21600 GOWANUS GAS TURBINES STATION 2494 1694 Reliant Energy Gowanus 4-5 24134 Brooklyn 47 19900 GOWANUS GAS TURBINES STATION 2494 1695 Reliant Energy Gowanus 4-6 24135 Brooklyn 47 23000 GOWANUS GAS TURBINES STATION 2494 1696 Reliant Energy Gowanus 4-7 24136 Brooklyn 47 22400 GOWANUS GAS TURBINES STATION 2494 1697 Reliant Energy Gowanus 4-8 24137 Brooklyn 47 23100 GOWANUS GAS TURBINES STATION 2494 1698 Reliant Energy Narrows 1-1 24228 Brooklyn 47 24700 NARROWS GENERATING STATION 2499 1699 Reliant Energy Narrows 1-2 24229 Brooklyn 47 23500 NARROWS GENERATING STATION 2499 1700 Reliant Energy Narrows 1-3 24230 Brooklyn 47 20200 NARROWS GENERATING STATION 2499 1701 Reliant Energy Narrows 1-4 24231 Brooklyn 47 24000 NARROWS GENERATING STATION 2499 1702 Reliant Energy Narrows 1-5 24232 Brooklyn 47 23800 NARROWS GENERATING STATION 2499 1703 Reliant Energy Narrows 1-6 24233 Brooklyn 47 23600 NARROWS GENERATING STATION 2499 1704 Reliant Energy Narrows 1-7 24234 Brooklyn 47 23200 NARROWS GENERATING STATION 2499 1705 Reliant Energy Narrows 1-8 24235 Brooklyn 47 24600 NARROWS GENERATING STATION 2499 1706 Reliant Energy Narrows 2-1 24236 Brooklyn 47 24200 NARROWS GENERATING STATION 2499 1707 Reliant Energy Narrows 2-2 24237 Brooklyn 47 23500 NARROWS GENERATING STATION 2499 1708 Reliant Energy Narrows 2-3 24238 Brooklyn 47 23300 NARROWS GENERATING STATION 2499 1709 Reliant Energy Narrows 2-4 24239 Brooklyn 47 19200 NARROWS GENERATING STATION 2499 1710 Reliant Energy Narrows 2-5 24240 Brooklyn 47 25700 NARROWS GENERATING STATION 2499 1711 Reliant Energy Narrows 2-6 24241 Brooklyn 47 25100 NARROWS GENERATING STATION 2499 1712 Reliant Energy Narrows 2-7 24242 Brooklyn 47 21200 NARROWS GENERATING STATION 2499 1713 Reliant Energy Narrows 2-8 24243 Brooklyn 47 22100 NARROWS GENERATING STATION 2499 1714 Rensselaer Cogeneration, LLC Rensselaer Cogen 23796 Rensselaer 83 79000 RENSSELAER COGEN 54034 1715 Rochester Gas and Electric Corp. Allegany GT 23514 Hume 3 40150 ALLEGANY COGEN 7784 1716 Rochester Gas and Electric Corp. Allegany ST 23514 Hume 3 21850 ALLEGANY COGEN 7784 1717 Rochester Gas and Electric Corp. Mills Mills 23604 Fillmore 3 200 WISCOY 170 2646 1718 Rochester Gas and Electric Corp. Mt Morris 23604 Mt Morris 51 300 MT MORRIS 160 2637 1719 Rochester Gas and Electric Corp. Station 2 1 23604 Rochester 55 6100 ROCHESTER 2 2639 1720 Rochester Gas and Electric Corp. Station 26 1 23604 Rochester 55 2800 ROCHESTER 26 2638 1721 Rochester Gas and Electric Corp. Station 5 1 23604 Rochester 55 12100 ROCHESTER 5 2641 1722 Rochester Gas and Electric Corp. Station 5 2 23604 Rochester 55 12100 ROCHESTER 5 2641 1723 Rochester Gas and Electric Corp. Station 5 3 23604 Rochester 55 16900 ROCHESTER 5 2641 1724 Rochester Gas and Electric Corp. Wiscoy 1 23604 Fillmore 3 600 WISCOY 170 2646 1725 Rochester Gas and Electric Corp. Wiscoy 2 23604 Fillmore 3 500 WISCOY 170 2646 1726 Rochester Gas and Electric Corp. Beebee GT 23619 Rochester 55 18000 ROCHESTER 3 2640 1727 Rochester Gas and Electric Corp. Station 9 23652 Rochester 55 17000 ROCHESTER 9 2644 1728 Rochester Gas and Electric Corp. Russell 1 23602 Greece 55 47000 ROCHESTER 7 2642 1729 Rochester Gas and Electric Corp. Russell 2 23532 Greece 55 60000 ROCHESTER 7 2642 1730 Rochester Gas and Electric Corp. Russell 3 23549 Greece 55 57000 ROCHESTER 7 2642 1731 Rochester Gas and Electric Corp. Russell 4 23556 Greece 55 81000 ROCHESTER 7 2642 1732 Rockville Centre, Village of Charles P Keller 7 23916 Rockville Centre 59 2000 CHARLES P KELLER 2695 1733 Rockville Centre, Village of Charles P Keller 8 23917 Rockville Centre 59 2700 CHARLES P KELLER 2695 1734 Rockville Centre, Village of Charles P Keller 9 23918 Rockville Centre 59 3200 CHARLES P KELLER 2695 1735 Rockville Centre, Village of Charles P Keller 10 23919 Rockville Centre 59 3100 CHARLES P KELLER 2695 1736 Rockville Centre, Village of Charles P Keller 11 23920 Rockville Centre 59 5200 CHARLES P KELLER 2695 1737 Rockville Centre, Village of Charles P Keller 12 23921 Rockville Centre 59 5300 CHARLES P KELLER 2695 1738 Rockville Centre, Village of Charles P Keller 13 24012 Rockville Centre 59 5400 CHARLES P KELLER 2695 1739 Rockville Centre, Village of Charles P Keller 14 24140 Rockville Centre 59 6000 CHARLES P KELLER 2695 1740 Select Energy NY, Inc. Fort Drum 23780 Watertown 45 53400 BLACK RIVER POWER LLC ELECTRIC GENERATION FACILITY 10464 1741 Project Orange Associates Project Orange 1 24174 Syracuse 67 45300 PROJECT ORANGE ASSOCIATES LP 54425 1742 Project Orange Associates Project Orange 2 24166 Syracuse 67 45800 PROJECT ORANGE ASSOCIATES LP 54425 1743 Selkirk Cogen Partners, L.P. Selkirk - 1 23801 Selkirk 1 111600 SELKIRK COGEN PARTNERS LP 10725 1744 Selkirk Cogen Partners, L.P. Selkirk - 2 23799 Selkirk 1 325100 SELKIRK COGEN PARTNERS LP 10725 1745 Seneca Falls Power Seneca Falls 1 23627 Seneca Falls 99 1650 SENECA ENERGY 54782 1746 Seneca Falls Power Seneca Falls 2 23627 Seneca Falls 99 1650 SENECA ENERGY 54782 1747 Seneca Falls Power Seneca Falls 4 23627 Seneca Falls 99 1800 SENECA ENERGY 54782 1748 Sithe Energies Inc. Sithe-Batavia 24024 Batavia 37 64300 SENECA POWER PARTNERS LP 54593 1749 Sithe Energies Inc. Sithe-Independence 23800 Scriba 75 1081900 SITHE INDEPENDENCE STATION 54547 1750 Sithe Energies Inc. Sithe-Massena 23902 Massena 89 90700 MASSENA POWER PLANT 54592 1751 Sithe Energies Inc. Sithe-Ogdensburg 24021 Ogdensburg 89 88800 OGDENSBURG 52058 1752 Sithe Energies Inc. Sithe-Sterling 23777 Sherrill 65 65100 STERLING ENERGY FACILITY 50744 1753 TransAlta Binghamton Cogen 23790 Binghamton 7 49700 BINGHAMTON 55600 1754 TransCanada Power Marketing, Ltd. Fort Orange 23900 Castleton 83 73000 FORT ORANGE FACILITY TRANSCANADA POWER 10190 1755 Trigen Corporation Trigen-Syracuse 23856 Syracuse 67 77200 TRIGEN SYRACUSE ENERGY CORP 50651 1756 Wheelabrator Westchester, LP Wheelabrator Westchester 23653 Peekskill 119 52000 BUCHANAN 4233 1757 WPS Energy WPS-Beaver Falls 23983 Beaver Falls 49 81000 BEAVER FALLS 10617 1758 WPS Energy WPS-Niagara 23895 Niagara 63 49500 NIAGARA FALLS 50202 1759 WPS Energy WPS-Syracuse 23985 Syracuse 67 90000 SYRACUSE 10621 1760 Wyeth Pharmaceuticals Lederle 1 23769 Pearl River 87 9700 LEDERLE LABORATORIES 10521 1761 Wyeth Pharmaceuticals Lederle 2 23769 Pearl River 87 9700 LEDERLE LABORATORIES 10521 Multiple iterations of mappings were attempted prior to this fairly successful one. As is clear from some examples sited in the seams data section and looking through this, the names are very frequently different between the data sources. Attempts at 53

matching plants by name alone, the only cross-referenceable data available from some sources, is not possible. 8. Lambda search on egrid Data Sorting the egrid generator listings by the calculated marginal costs, it is easy to use the most basic of economic dispatches, the lambda search method, to determine the dispatch were line constraints not a concern. Table 15 shows the egrid generators sorted in order of increasing calculated marginal costs, assuming that bids are placed at generator marginal costs for plants full capacity. In reality, reserve margins are needed to ensure system stability in case of faults so generators would not all be supplying 100% of their capacity. For the purposes of this study, reserve requirements will be ignored. Additionally, real system dispatches cannot be done for a snapshot in time in isolation. One must consider the current state of the generators and the projected load demand. Base load units such as coal and nuclear plants must operate for a minimum amount of time after being started up and must remain off for a specified duration before being restarted. A unit commitment step would need to be performed to determine which generators to turn on and which to turn off based on costs, current state, unit characteristics, and forecasted demand. For the purposes of this study, only isolated snapshots will be considered, understanding that this would be a very real limitation in real operations. Additional constraints that must be considered during unit commitment are crew constraints, must run unit constraints, and fuel and hydro constraints. Crew constraints refers to the fact that at a single plant, it is possible that multiple generators cannot be started simultaneously because there is a finite staff resource to go through the start up procedures. Some units are designated as must run units either based on system needs at the time of year or based on political requirements. For example, wind power plants are operated as must run generators in New York. When the wind blows and they produce power, the ISO must manage the system to accept that power. In turn, the must run wind plants always bid zero and are not involved in market speculation. They are 54

price takers, not price setters. At times there are units with fuel constraints or hydro units with water resource constraints. Either lack of fuel or water can cause the unit to run at lower than desired levels or a need to burn or run through the fuel or water may cause the units to run at a higher level than otherwise. These present very difficult additions to unit commitment decision algorithms. Methods for unit commitments include priority list schemes, dynamic programming, and Lagrange relaxation. With each of these methods, as more factors are considered and the algorithms become more complex, the need for timely operation must be kept in mind. As computing power continues to grow, more elaborate and often improved methods for unit commitment can be realized. For the purposes of this study, the unit commitment step will not be considered and a simple snapshot economic dispatch will be determined. The yellow line shows the marginal unit for a summer day s base load of roughly 15,000MW in the simple lambda search economic dispatch. The Northport oil generator, at a marginal cost of $32.42/MWh sets the price that generators are paid. All generators with bids below Northport are taken for their full output and paid the marginal unit s bid. The marginal unit then supplies the remaining demand. All units with bids over Northports are rejected. Similarly, the blue line shows the peak winter demand recorded in New York, 25,540MW. The red line, farther down, shows the new summer peak demand of 33,879MW, recorded at 4pm on August 1, 2006 during the writing of this report. This broke the previous all time demand record of 32,075MW from the summer of 2005. August 2, 2006 is predicted to have an even higher peak load. 55

Table 15 - egrid generators sorted by calculated marginal cost. The yellow line shows the marginal unit for summer base load, the blue line for winter peak load, and the red line for summer peak load Plant generator capacity (MW) Plant primary fuel Fossil Fuel Cost 2005 ($/MMBtu) CHP plant electric allocation factor Adjusted Heat Rate to account for CHP (Btu/kWh) Fossil Fuel Cost based on Heat Rate ($/MWh) Operating Cost based on Heat Rate ($/MWh) Average Operating Cost Using Heat Rate Scaled to Match National Average ($/MWh) Plant annual NOx output emission rate Plant annual SO2 output emission rate Plant annual CO2 output emission rate (lbs/mwh) Plant name (lbs/mwh) (lbs/mwh) OSWEGO COUNTY ENERGY RECOVERY 3.64 MSW 0.0953 819.7 0.00-3.41 4.40 1.49 447.66 CORNELL UNIVERSITY CENTRAL HEATING PLANT 7.59 BIT 1.54 0.1480 1,303.9 2.01 2.63 3.84 4.91 16.76 1,735.26 DEFERIET NEW YORK 8.11 BIT 1.54 0.1642 1,452.0 2.24 2.93 4.27 7.12 17.25 1,810.76 BUFFALO PAPERBOARD CORP 1.50 NG 8.2 0.0697 599.6 4.92 5.45 5.31 1.67 0.05 1,012.53 TICONDEROGA MILL 42.10 BL 0.2015 1,681.6 0.00-7.77 1.17 1.68 194.12 YALEVILLE 0.73 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BEAVER FALLS II 1.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MACOMB 1.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 PORT LEYDEN HYDROELECTRIC PROJECT 1.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HOLLOW DAM POWER CO PARTNERSHIP 1.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CLARKS MILL UPPER 1.01 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CELLU TISSUE CORP NATURAL DAM MILL 1.02 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HEUVELTON 1.04 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CLARK MILLS LOWER 1.07 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 DIAMOND ISLAND PLANT 1.20 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 NORMANSKILL HYDRO PROJECT 1.20 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FULTON 1.25 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CENTER FALLS 1.27 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HERKIMER 1.28 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 THERESA PLANT 1.30 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 TALCVILLE 1.34 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 GOODYEAR LAKE PLANT 1.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HAILESBORO 4 PLANT 1.49 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BEAVER FALLS I 1.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 ELMER 1.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 GLENWOOD 1.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SCHUYLERVILLE 1.55 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CHASM HYDRO PARTNERSHIP 1.60 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CHATEAUGAY HIGH FALLS HYDRO 1.70 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 VICTORY MILLS 1.70 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 NEWPORT HYDRO 1.83 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 STILLWATER RESERVOIR HYDRO 1.85 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CORNELL HYDRO 1.87 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 DIANA HYDROELECTRIC 1.88 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 TANNERY ISLAND POWER CO 1.88 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 NORWOOD 2.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 RAYMONDVILLE 2.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SEWALLS 2.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 WAPPINGER FALLS HYDROELECTRIC 2.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BELFORT 2.04 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 ALICE FALLS HYDROELECTRIC PROJECT 2.10 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 OSWEGO FALL WEST 2.26 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FRANKLIN 2.30 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MIDDLE FALLS HYDROELECTRIC 2.30 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 PARISHVILLE 2.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 WALDEN 2.45 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 VALLEY FALLS HYDROELECTRIC FACILITY 2.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 UNION FALLS 2.60 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 EEL WEIR 2.70 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 PIERCEFIELD 2.70 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SOUTH EDWARDS 2.88 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 WARRENSBURG HYDROELECTRIC 2.90 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 EFFLEY 2.96 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 EAST NORFOLK 3.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HEWITTVILLE HYDROELECTRIC 3.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MT IDA HYDROELECTRIC 3.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SISSONVILLE HYDROELECTRIC 3.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 UNIONVILLE HYDRO PROJ 2499 NY 3.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 LYONSDALE ASSOCIATES 3.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 COPENHAGEN PLANT 3.30 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 LONGFALLS FACILITY 3.33 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CHASM 3.35 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FOURTH BRANCH HYDROELECTRIC FACILITY 3.35 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FORESTPORT 3.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HAMPSHIRE PAPER CO INC 3.48 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 PHOENIX HYDRO PROJECT 3.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 STILLWATER HYDRO ELECTRIC PROJECT 3.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 PHILADELPHIA 3.65 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 OGDENSBURG 3.75 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 LACHUTE HYDRO LOWER 3.80 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MONGAUP 4.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 DEXTER PLANT 4.30 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 ALLENS FALLS 4.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HIGLEY 4.48 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 OSWEGO FALLS EAST 4.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 TAYLORVILLE 4.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 WEST END DAM HYDROELECTRIC PROJECT 4.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 NORFOLK 4.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 WATERPORT 4.65 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HYDRAULIC RACE 4.69 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HIGH FALLS 4.80 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 JOHNSONVILLE 4.80 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SUGAR ISLAND 4.80 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 DOLGEVILLE HYDROELECTRIC 5.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FORT MILLER HYDROELECTRIC FACILITY 5.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SWINGING BRIDGE I 5.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 EPHRATAH 5.10 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 LACHUTE HYDRO UPPER 5.20 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HERRINGS 5.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 KAMARGO 5.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BLACK RIVER HYDRO ASSOCIATES 5.70 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BLACK RIVER 6.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FEEDER DAM HYDRO PLANT 6.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FLAT ROCK 6.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 GREEN ISLAND 6.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 EAGLE 6.05 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 INGHAMS 6.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 LOWER SARANAC HYDROELECTRIC FACILITY 6.70 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SWINGING BRIDGE 2 7.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HANNAWA 7.20 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 LIGHTHOUSE HILL 7.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 WEST DELAWARE TUNNEL PLANT 7.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BEEBEE ISLAND HYDRO PLANT 8.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 56

MINETTO 8.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MOSHIER 8.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 PYRITES PLANT 8.20 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 VARICK 8.80 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 GRANBY 10.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 RIO 10.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 DAHOWA HYDRO 10.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 DEFERIET 10.80 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 NEW YORK STATE DAM HYDRO 11.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MOOSE RIVER 12.60 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 LITTLE FALLS HYDRO 13.10 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SCHAGHTICOKE 13.12 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SOUTH GLENS FALLS HYDROELECTRIC PROJECT 13.89 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BLAKE 14.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SOFT MAPLE 15.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BROWNS FALLS 15.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 PROSEPECT 17.33 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 GRAHAMSVILLE 18.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SOUTH COLTON 19.35 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 TRENTON FALLS 19.60 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BEARDSLEE 20.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 E J WEST 20.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 RAINBOW FALLS 22.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 STARK 22.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FIVE FALLS 22.50 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BENNETTS BRIDGE 28.75 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SHERMAN ISLAND 28.80 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 STEWARTS BRIDGE 30.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 COLTON 30.00 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 GLEN PARK HYDROELECTRIC PROJECT 32.75 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HUDSON FALLS HYDROELECTRIC PROJECT 36.03 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SCHOOL STREET 38.80 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 SPIER FALLS 44.40 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CURTIS PALMER HYDROELECTRIC 59.27 WAT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MT MORRIS 160 0.34 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 WISCOY 170 1.08 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CARVER FALLS 1.90 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 RAINBOW FALLS 2.64 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 ROCHESTER 26 3.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 KENSICO 3.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HIGH FALLS 3.24 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 ASHOKAN 4.76 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 DASHVILLE 4.80 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CADYVILLE 5.53 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MILL C 6.05 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 ROCHESTER 2 6.50 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CITY OF WATERTOWN 8.12 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 JARVIS (HINCKLEY) 9.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 CRESCENT 11.60 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 VISCHER FERRY 11.60 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 KENT FALLS 12.40 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 STURGEON 14.40 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 HIGH FALLS 15.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 UPPER MECHANICVILLE 16.53 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 NEVERSINK 25.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 ROCHESTER 5 43.74 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 LEWISTON 240.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MOSES POWER DAM 912.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 BLENHEIM-GILBOA 1000.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 MOSES NIAGARA 2250.00 WT N/A 0.0 0.00-8.69 0.00 0.00 0.00 FINCH PRUYN CO INC 40.89 BL 0.2432 2,081.3 0.00-9.61 1.15 0.23 280.34 KODAK PARK SITE 200.58 BIT 1.54 0.3767 3,321.4 5.11 6.69 9.77 4.04 2.76 1,737.21 TATE&LYLE NORTH AMERICAN SUGARS INC 11.50 NG 8.2 0.1507 1,312.8 10.76 11.93 11.64 1.61 0.00 1,008.77 AMERICAN REF FUEL CO OF NIAGARA LP 50.00 MWC 0.3293 2,956.8 0.00-12.29 1.74 0.14 386.97 HUDSON AVENUE 48.90 OIL 6.48 0.4785 4,067.3 26.36 29.22 12.39 7.38 1.01 1,357.06 S A CARLSON 71.75 COL 1.54 0.4888 4,154.8 6.40 8.37 13.32 3.67 20.87 1,744.18 TRIGEN SYRACUSE ENERGY CORP 90.60 BIT 1.54 0.4449 4,532.4 6.98 9.14 13.34 6.01 2.08 2,091.16 WATERSIDE 199.80 GAS 8.2 0.2363 2,271.6 18.63 20.65 15.16 0.76 0.01 1,141.11 MIDDLETOWN LFG LTD CONVERSION SITE 2&3 6.10 LFG 0.4337 3,686.4 0.00-16.25 1.66 0.07 0.00 DUTCHESS COUNTY RESOURCE RECOVERY FACILITY 9.20 MSW 0.4200 3,923.8 0.00-16.31 6.01 2.02 507.81 COGENT LITTLE FALLS GP 4.50 NG 8.2 0.2142 1,890.9 15.51 17.19 16.76 1.63 0.01 1,022.26 FITZAPATRICK 883.00 NUC N/A 0.0 0.00-18.26 0.00 0.00 0.00 INDIAN POINT 3 1013.00 NUC N/A 0.0 0.00-18.26 0.00 0.00 0.00 LACKAWANNA FACILITY 25.00 OG 0.2523 2,232.6 0.00-18.26 0.95 0.01 1,024.71 GINNA 517.14 UR N/A 0.0 0.00-18.26 0.00 0.00 0.00 INDIAN POINT 1326.25 UR N/A 12.4 0.00-18.26 0.01 0.00 1.98 NINE MILE POINT 1901.05 UR N/A 0.1 0.00-18.26 0.00 0.00 0.01 BABYLON RESOURCE RECOVERY FACILITY 17.00 MWC 0.5110 4,906.7 0.00-20.40 2.95 0.02 498.60 FULTON COGENERATION ASSOCIATES 50.00 NG 8.2 0.2877 2,397.9 19.66 21.80 21.25 1.24 0.03 965.15 NEW YORK UNIVERSITY CENTRAL PLANT 8.21 NG 8.2 0.2578 2,604.3 21.36 23.68 23.08 1.84 6.11 1,461.10 SENECA ENERGY 11.20 LFG 0.6833 5,542.6 0.00-24.43 1.47 0.05 0.00 HUDSON RIVER MILL 38.40 NG 8.2 0.3369 3,056.7 25.06 27.79 27.09 1.32 0.20 1,085.81 DUNKIRK GENERATING STATION 560.00 BIT 1.54 N/A 9,443.9 14.54 19.04 27.79 3.31 28.54 1,937.88 AES SOMERSET LLC 727.89 BIT 1.54 N/A 9,695.1 14.93 19.54 28.53 2.93 3.24 1,989.44 NIAGARA FALLS 56.00 BIT 1.54 N/A 9,723.7 14.97 19.60 28.62 2.06 7.98 2,017.16 GREENPORT 6.97 OIL 6.48 N/A 9,887.0 64.07 71.03 30.12 31.44 1.18 1,578.50 MONTAUK 6.00 OIL 6.48 N/A 9,887.0 64.07 71.03 30.12 31.44 1.18 1,578.50 AES CAYUGA 306.00 BIT 1.54 N/A 10,580.4 16.29 21.33 31.14 3.38 7.78 2,171.11 HUNTLEY GENERATING STATION 760.00 BIT 1.54 N/A 10,643.7 16.39 21.45 31.32 5.67 27.17 2,184.10 PROJECT ORANGE ASSOCIATES LP 98.00 NG 8.2 0.4947 3,630.6 29.77 33.01 32.18 0.95 0.00 849.85 NORTHPORT 1516.00 OIL 6.48 N/A 10,643.3 68.97 76.46 32.42 2.19 7.82 1,973.16 AES GREENIDGE 138.80 BIT 1.54 N/A 11,123.9 17.13 22.42 32.74 5.22 34.84 2,143.03 WADING RIVER 238.50 OIL 6.48 N/A 10,857.6 70.36 78.00 33.07 9.43 1.29 1,733.46 U S GYPSUM OAKFIELD 5.80 NG 8.2 0.4824 3,755.3 30.79 34.14 33.29 1.37 0.00 901.44 DANSKAMMER 537.41 COL 1.54 N/A 10,463.2 16.11 21.09 33.53 3.98 9.15 2,050.21 PORT JEFFERSON 454.00 OIL 6.48 N/A 11,152.2 72.27 80.12 33.97 2.02 8.19 2,091.16 LOVETT 449.10 BIT 1.54 N/A 11,669.2 17.97 23.52 34.34 4.20 9.69 2,278.41 ROCHESTER 7 252.60 COL 1.54 N/A 10,717.6 16.51 21.60 34.35 4.01 35.92 2,199.25 AES WESTOVER 118.75 BIT 1.54 N/A 11,908.0 18.34 24.00 35.04 5.87 39.42 2,443.51 BLACK RIVER POWER LLC ELECTRIC GENERATION FACILITY 49.90 BIT 1.54 N/A 12,191.3 18.77 24.57 35.88 5.75 2.33 2,481.79 EAST HAMPTON 27.30 OIL 6.48 N/A 12,901.3 83.60 92.68 39.30 16.06 1.54 2,059.75 ROSETON 1242.00 OIL 6.48 N/A 13,001.6 84.25 93.40 39.60 2.58 11.40 2,069.66 BROOKLYN NAVY YARD COGENERATION PARTNERS L P 336.62 NG 8.2 0.6795 4,701.3 38.55 42.74 41.67 0.07 0.01 831.84 WARBASSE COGEN FACILITY 37.80 NG 8.2 0.6523 4,720.8 38.71 42.92 41.84 0.97 0.03 864.29 57

AES HICKLING LLC 70.00 BIT 1.54 N/A 14,443.0 22.24 29.11 42.50 5.54 28.58 3,036.13 NORTH SHORE TOWERS 8.85 NG 8.2 0.6564 4,848.1 39.75 44.07 42.97 1.36 0.12 979.05 HOLTSVILLE 567.00 OIL 6.48 N/A 14,136.5 91.60 101.56 43.06 12.28 1.69 2,256.95 ST MARYS HOSPITAL 1.20 NG 8.2 0.3823 4,883.0 40.04 44.39 43.28 0.73 0.05 1,479.08 AG ENERGY LP 93.60 NG 8.2 0.7829 4,958.1 40.66 45.07 43.95 0.12 0.00 733.36 BRONX ZOO 3.79 NG 8.2 0.6590 5,126.8 42.04 46.61 45.44 1.41 0.28 946.94 SOUTH CAIRO 21.60 OIL 6.48 N/A 14,942.5 96.83 107.35 45.52 12.98 1.78 2,385.62 HONEYWELL FARMS INC 4.45 NG 8.2 0.7938 5,142.3 42.17 46.75 45.58 1.18 0.23 787.41 59TH STREET 17.10 OIL 6.48 N/A 15,144.0 98.13 108.80 46.13 13.15 1.81 2,417.80 74TH STREET 37.19 OIL 6.48 N/A 15,144.0 98.13 108.80 46.13-47,808.42-38,460.24-24,529,284.77 STARRETT AT SPRING CREEK TOTAL ENERGY PLANT 18.00 NG 8.2 0.4614 5,216.6 42.78 47.42 46.24 1.94 1.56 1,586.85 ALBANY LANDFILL 1.90 LFG N/A 10,510.8 0.00-46.33 2.16 0.01 0.00 AES JENNISON LLC 60.00 BIT 1.54 N/A 15,921.3 24.52 32.09 46.86 5.39 28.19 3,318.95 BEAVER FALLS 107.80 NG 8.2 0.6176 5,454.9 44.73 49.59 48.35 0.97 0.00 1,024.94 CHATEAUGAY POWER STATION 19.70 WDS N/A 13,686.6 0.00-49.72 2.99 0.04 0.00 LAIDLAW ENERGY & ENVIRONMENTAL INC 5.58 NG 8.2 0.7427 5,647.5 46.31 51.34 50.06 1.45 0.03 880.54 WETHERSFIELD 6.60 WND N/A 0.0 0.00-50.10 0.00 0.00 0.00 MADISON WINDPOWER 11.55 WND N/A 0.0 0.00-50.10 0.00 0.00 0.00 WEST BABYLON 52.40 OIL 6.48 N/A 16,508.0 106.97 118.59 50.28 1,020.79 140.09 187,683.57 LYONSDALE POWER CO LLC 21.15 WDS N/A 13,893.5 0.00-50.48 3.04 0.04 0.01 ALLEGANY COGEN 67.00 GAS 8.2 1.0000 7,582.3 62.17 68.93 50.59 0.53 0.01 901.21 HIGH ACRES GAS RECOVERY 3.20 LFG N/A 11,535.2 0.00-50.85 2.16 0.07 0.00 SOUTH OAKS HOSPITAL 1.33 NG 8.2 0.6908 5,751.4 47.16 52.29 50.98 1.50 0.06 1,067.56 ROCHESTER 3 41.50 OIL 6.48 N/A 16,913.8 109.60 121.51 51.52 14.69 2.02 2,700.35 MOHAWK VALLEY LANDFILL GAS RECOVERY 1.60 LFG N/A 11,704.9 0.00-51.60 2.07 0.01 50.67 BINGHAMTON 47.00 NG 8.2 N/A 5,917.9 48.53 53.80 52.45 0.89 0.02 685.28 TRIGEN NASSAU ENERGY CORP 57.00 NG 8.2 0.7708 5,946.0 48.76 54.05 52.70 1.14 0.01 900.87 LFG ENERGY INC 5.60 LFG N/A 12,216.2 0.00-53.85 2.77 0.09 34.96 EAST RIVER 356.25 GAS 8.2 0.6401 8,274.6 67.85 75.22 55.21 2.92 1.20 1,708.95 BASSETT HEALTHCARE 2.40 DFO 11.89 N/A 10,833.3 128.81 142.80 55.98 1.86 2.65 1,729.58 MONROE LIVINGSTON GAS RECOVERY 3.20 LFG N/A 12,818.8 0.00-56.51 2.45 0.08 0.00 LINDEN COGEN PLANT 761.6 NG 8.2 0.8254 6,574.5 53.91 59.77 58.27 0.44 0.01 930.33 SMITHTOWN ENERGY PARTNERS LP 0.72 LFG N/A 13,256.4 0.00-58.44 2.78 0.09 0.00 HOFSTRA UNIVERSITY 2.34 NG 8.2 0.8148 6,594.1 54.07 59.95 58.45 1.48 0.03 990.90 OYSTER BAY ENERGY PARTNERS LP 0.72 LFG N/A 13,263.9 0.00-58.47 2.79 0.02 0.00 OCEANSIDE LANDFILL 2.16 LFG N/A 13,265.2 0.00-58.47 2.79 0.09 0.00 ONONDAGA ENERGY PARTNERS LP 0.72 LFG N/A 13,269.0 0.00-58.49 2.79 0.02 0.00 INDECK YERKES ENERGY CENTER 60.04 NG 8.2 0.8534 6,651.5 54.54 60.47 58.96 1.16 0.03 903.04 COCA COLA BOTTLING CO OF NEW YORK 1.93 NG 8.2 0.7505 6,659.9 54.61 60.54 59.03 1.61 0.46 1,105.78 BUCHANAN 44.80 OIL 6.48 N/A 19,504.4 126.39 140.12 59.41 16.94 2.32 3,113.96 RICHARD M FLYNN 164.00 GAS 8.2 N/A 9,165.1 75.15 83.32 61.16 0.36 0.17 1,116.33 SITHE INDEPENDENCE STATION 1305.48 NG 8.2 0.9716 6,944.8 56.95 63.13 61.56 0.13 0.03 827.71 KENNEDY INTERNATIONAL AIRPORT COGEN FACILITY 121.14 NG 8.2 0.8581 6,958.2 57.06 63.26 61.67 0.44 0.03 939.00 INDECK OSWEGO ENERGY CENTER 57.57 NG 8.2 0.8308 6,994.7 57.36 63.59 62.00 1.26 0.00 974.95 INDECK SILVER SPRINGS ENERGY CENTER 56.68 NG 8.2 0.8457 7,089.9 58.14 64.45 62.84 1.09 0.00 970.80 SOUTH GLENS FALLS ENERGY LLC 59.74 NG 8.2 0.7494 7,097.6 58.20 64.52 62.91 1.23 0.01 1,106.39 SELKIRK COGEN PARTNERS LP 357.63 NG 8.2 0.8992 7,199.5 59.04 65.45 63.81 1.19 0.00 927.15 INDECK CORINTH ENERGY CENTER 147.00 NG 8.2 0.9389 7,250.9 59.46 65.92 64.27 0.14 0.04 896.58 ENTENMANNS ENERGY CENTER 5.45 NG 8.2 0.8054 7,294.1 59.81 66.31 64.65 1.67 0.56 1,143.75 NEW YORK METHODIST HOSPITAL 1.88 NG 8.2 0.7841 7,320.8 60.03 66.55 64.89 1.77 0.03 1,081.16 WESTCHESTER RESCO 74.50 MWC N/A 15,632.5 0.00-65.00 4.96 0.98 812.59 AMERICAN REF FUEL CO OF HEMPSTEAD 78.60 MWC N/A 15,811.6 0.00-65.74 5.23 0.64 802.44 ONONDAGA COUNTY RESOURCE RECOVERY FACILITY 39.50 MWC N/A 15,829.6 0.00-65.82 4.48 0.12 824.44 FORT ORANGE FACILITY TRANSCANADA POWER 60.00 NG 8.2 0.8795 7,439.9 61.01 67.64 65.94 1.27 0.07 986.11 SARANAC FACILITY 285.60 NG 8.2 0.9301 7,449.2 61.08 67.72 66.03 0.15 0.03 927.45 ORANGE COUNTY NEW YORK 3.00 LFG N/A 15,315.2 0.00-67.51 1.33 0.01 0.00 LOCKPORT ENERGY ASSOC LP LOCKPORT COGEN FACIL 221.35 NG 8.2 0.9066 7,634.5 62.60 69.40 67.67 1.26 0.04 976.44 TBG COGEN 84.03 NG 8.2 0.9185 7,697.8 63.12 69.98 68.23 1.25 0.02 987.64 STONY BROOK COGENERATION PLANT 42.00 NG 8.2 0.7916 7,725.5 63.35 70.23 68.48 1.47 0.01 1,133.98 BARRETT 661.40 GAS 8.2 N/A 10,351.2 84.88 94.10 69.07 1.57 0.68 1,306.39 INDECK ILION ENERGY CENTER 63.80 NG 8.2 0.9382 7,847.0 64.35 71.34 69.55 1.25 0.00 968.60 SENECA POWER PARTNERS LP 67.38 NG 8.2 0.9332 7,927.3 65.00 72.07 70.26 1.28 0.04 985.04 OXBOW POWER OF NORTH TONAWANDA NEW YORK INC 55.34 NG 8.2 0.9580 8,020.9 65.77 72.92 71.09 1.27 0.00 969.67 ADIRONDACK RESOURCE RECOVERY FACILITY 15.00 MWC N/A 17,193.8 0.00-71.49 6.66 0.08 900.25 HUNTINGTON RESOURCE RECOVERY FACILITY 25.00 MWC N/A 17,294.0 0.00-71.90 4.87 0.18 896.95 GENERAL MILLS INC BUFFALO 3.80 NG 8.2 0.8149 8,206.8 67.30 74.61 72.74 2.13 0.04 1,166.20 INDECK OLEAN ENERGY CENTER 90.68 NG 8.2 0.9859 8,310.2 68.14 75.55 73.66 0.47 0.03 976.44 ALBANY GENERATING STATION 400.00 RFO 7.12 N/A 12,568.1 89.49 99.21 73.71 2.56 13.95 1,940.10 ONONDAGA COGENERATION 105.93 NG 8.2 0.9219 8,323.3 68.25 75.67 73.78 0.50 0.19 1,074.68 LUTHERAN MEDICAL CENTER 1.63 NG 8.2 0.9121 8,387.1 68.77 76.25 74.34 1.94 0.00 1,064.82 SYRACUSE 102.70 NG 8.2 N/A 8,425.7 69.09 76.60 74.68 0.23 0.10 1,008.87 POLETTI 883.00 GAS 8.2 N/A 11,265.5 92.38 102.41 75.17 2.03 1.40 1,547.21 GLENWOOD GAS 16.00 OIL 6.48 N/A 24,915.4 161.45 178.99 75.89 21.64 2.97 3,977.83 CHARLES P KELLER 33.57 GAS 8.2 N/A 11,433.2 93.75 103.94 76.29 32.84 0.33 1,437.34 SOUTH HAMPTON 11.50 OIL 6.48 N/A 25,244.6 163.59 181.36 76.90 21.92 3.01 4,030.40 CARR STREET GENERATING STATION 125.38 NG 8.2 N/A 8,690.3 71.26 79.00 77.03 0.48 0.00 1,006.33 OSWEGO HARBOR POWER 1803.75 RFO 7.12 N/A 13,155.7 93.67 103.85 77.16 2.58 10.90 2,081.68 GLENWOOD 310.00 GAS 8.2 N/A 11,719.7 96.10 106.54 78.20 1.36 0.04 1,405.39 RENSSELAER COGEN 103.87 NG 8.2 N/A 8,857.3 72.63 80.52 78.51 0.50 0.01 1,041.04 FAR ROCKAWAY 100.00 GAS 8.2 N/A 11,852.8 97.19 107.75 79.09 2.24 0.01 1,408.80 MASSENA POWER PLANT 101.86 NG 8.2 N/A 9,236.3 75.74 83.97 81.87 0.52 0.01 1,071.49 CARTHAGE ENERGY LLC 62.99 NG 8.2 N/A 9,556.7 78.36 86.88 84.71 1.09 0.01 1,116.62 SHOREHAM 71.50 OIL 6.48 N/A 29,254.0 189.57 210.16 89.11-401.98-55.17-73,908.61 GOWANUS GAS TURBINES STATION 622.32 DFO 11.89 N/A 17,890.6 212.72 235.83 92.45 3.11 4.43 2,856.31 WEST COXSACKIE 21.60 GAS 8.2 N/A 14,422.1 118.26 131.11 96.23 8.56 0.88 1,989.66 RAVENSWOOD 2375.35 NG 8.2 N/A 11,031.5 90.46 100.29 97.78 1.52 0.77 2,028.90 PLANT NO 2 37.39 OIL 6.48 N/A 32,356.4 209.67 232.45 98.56 88.56 3.86 5,165.83 ROCHESTER 9 19.00 GAS 8.2 N/A 15,284.0 125.33 138.95 101.99 4.90 0.05 1,778.81 ST JOHNS RIVERSIDE HOSPITAL 0.60 NG 8.2 0.9345 11,657.6 95.59 105.98 103.33 2.30 0.04 1,444.56 WATCHTOWER EDUCATIONAL CENTER 2.25 NG 8.2 N/A 11,829.5 97.00 107.54 104.85 2.18 0.17 1,393.91 MAC ARTHUR WASTE TO ENERGY FACILITY 12.50 MSW N/A 26,128.7 0.00-108.64 17.13 5.81 1,347.07 STERLING ENERGY FACILITY 65.30 NG 8.2 0.9541 12,353.7 101.30 112.31 109.50 1.95 0.01 1,500.87 ASTORIA GENERATING STATION 1365.85 NG 8.2 N/A 12,481.9 102.35 113.47 110.63 2.00 0.73 1,597.11 ARTHUR KILL GENERATION STATION 931.70 NG 8.2 N/A 12,732.6 104.41 115.75 112.86 1.54 0.01 1,509.58 BOWLINE POINT 1155.00 NG 8.2 N/A 12,802.3 104.98 116.38 113.48 2.47 2.01 1,754.74 LEDERLE LABORATORIES 23.49 NG 8.2 0.8201 13,309.7 109.14 121.00 117.97 2.96 0.02 1,904.54 HARRIS LAKE 1.75 OIL 6.48 N/A 39,390.6 255.25 282.98 119.98 125.28 4.69 6,288.86 SOUTHOLD 14.00 OIL 6.48 N/A 42,912.3 278.07 308.28 130.71 37.26 5.11 6,851.11 ASTORIA GAS TURBINES 762.00 NG 8.2 N/A 15,273.8 125.25 138.85 135.38 2.25 0.88 1,910.68 NARROWS GENERATING STATION 348.10 NG 8.2 N/A 18,065.3 148.14 164.23 160.12 3.30 0.16 2,223.97 HILLBURN 46.50 NG 8.2 N/A 19,173.1 157.22 174.30 169.94 3.54 0.28 2,255.67 SHOEMAKER 41.90 NG 8.2 N/A 27,680.7 226.98 251.64 245.35 4.94 2.70 3,635.30 PLANT NO 1 13.41 OIL 6.48 N/A 169,253.8 1096.76 1215.93 515.55 538.28 20.17 27,022.02 The Northeast Power Coordinating Council, NPCC, sets capacity reserve requirements for the purposes of maintaining electric power system reliability. The New York State Reliability Council determined that an installed reserve capacity of 18% over the New York Control Area summer peak load is required to meet NPCC reliability 58

criteria [9]. The above shows a reserve capacity of only 5,092MW, 15% of the peak load and below the reserve requirements. Figure 12 through Figure 15 show comparisons of the total system cost and total system emissions rates given the three load scenarios: summer base load, winter peak, and summer peak. The same lambda search method has been used in all of these scenarios, but instead of minimizing cost as is typically done, the alternate optimizations sort the plants based on their emissions rates. This was done for NOx, SO2, and CO2. Though egrid contains mercury emissions data, it is incomplete so this was not done for mercury. Figure 12 - Comparison of total cost for various loads, optimizations 59

What can be seen in Figure 12 is that the costs do not increase linearly between the different optimizations as the load increases. For example, at the base load the SO2 minimization has the highest cost yet at the peak summer load the CO2 minimization is the most costly. In the cost minimization strategy, the total cost is $288,861/hr for the base load and $1,450,648/hr for the peak summer load. At the light load level, it is equally costly to minimize for each of the three emissions types, with the cost rising to roughly $400,000/hr. At the higher loads, it appears that NOx is the least costly to minimize through redispatching while CO2 is the most costly. In all cases, minimizing any of the emissions rather than cost proves to increase the total system cost by 25-85%. Figure 13 - Comparison of total CO2 emissions for various loads, optimizations 60

Figure 13 shows that the minimum carbon dioxide emissions can drop from 16,027lbs/h in the cost minimization strategy to 3,102 in the CO2 minimization strategy in the light load scenario. As the load increases though, there are fewer gains to be made by minimizing carbon dioxide as more and more plants must be dispatched no matter what is minimized. In the base load case, minimizing the carbon emissions can cut the CO2 emissions roughly in third as compared with the cost minimization strategy. Figure 14 - Comparison of total SO2 emissions for various loads, optimizations 61

Figure 14 shows that minimizing for cost results in far higher sulfur emissions than minimizing for any emission except carbon dioxide at the highest load level. In the base load case, the sulfur emissions are almost 2000 times higher in the cost minimized dispatch than if sulfur were itself minimized. Figure 15 - Comparison of total NOx emissions for various loads, optimizations Figure 15 shows something similar for nitrogen oxide emissions, though not to the same degree. Nitrogen dioxide emissions can be reduced by a factor of seventeen through their minimization as compared with a simple cost minimization. The least cost solution in every case also has the highest emissions for all three pollutants. Revisiting Figure 12, it becomes clear that at low load levels, immense improvement can be made for relatively little cost by redispatching based on pollution minimization as compared with the incremental decrease in pollution. While the cost of the electricity increases by a factor of 1.32 in the NOx emissions reduction case, the emissions are reduced by a factor of 17.48. The cost goes up by a factor of 1.49 while the SOx goes down by a factor of 1,943 when it is minimized. Granted, these are large increases in electricity prices for a state that already has some of the highest cost electricity in the country. Emissions control technology costs are in fact less costly and can achieve better results at the higher load levels. 62

9. PowerWorld Software This project used the PowerWorld Simulator Version 10.0 OPF university license software package. PowerWorld simulator (PowerWorld) is designed to allow for a graphical user interface while performing powerful operations on power system data. It has a power flow solution capability of up to 60,000 buses in the corporate version though the academic version is limited to 7,000 buses. When one-line diagrams are created for or with the underlying power flow information, a user may visualize many aspects of the power system s operation. PowerWorld can perform economic dispatches, area transaction economic analysis, power transfer distribution factor computation, short circuit analysis, and contingency analysis. A very small portion of PowerWorld s capability was used for this project. 10. PowerWorld Economic Dispatch Solutions The original seams case in PowerWorld was exported from the PowerWorld simulator into Microsoft Excel where generator capacity and cost values were edited as described above. These records were then re-imported into PowerWorld and the case run under an economic dispatch. All New York generators were set to a piecewise linear cost model with the one point defined being the marginal cost identified above and the generator s rated capacity. No fixed costs were included and no variation in cost due to percent of the unit dispatched was accounted for. Unlike the lambda search method used above with the egrid data and associated calculated costs, the PowerWorld simulator is able to account for a variety of complicating issues. It models the whole region around New York so that power flows between areas can be represented. New York does not operate as an island, and it is more realistic to model it in the context of a greater system. While the economic dispatch does not enforce line constraints, it does account for line losses. There are various real and reactive power losses associated with moving power over transmission lines which the lambda search method does not address. 63

In the economic dispatch done using the edited generator and cost data, the system-wide losses amounted to 4,174MW. The total cost of generation in New York in the economic dispatch is $450,590/hr. The lossless lambda search in the egrid data for this load would have given a system cost of $429,269/hr. This makes very good sense. The PowerWorld solution had to account for a higher load due to losses but was in the ballpark of the lambda search method. 11. Conclusions While it has been interesting to explore emissions minimization through alternative dispatching methods, it is clear from the cost information here that an absolute minimization of emissions by alternative dispatches without regards to other factors is far more expensive than flue gas treatments. However, this has shown that there is a vast opportunity available for emissions reductions through redispatching, and it is likely that a hybrid method involving a minimization of both costs and target emissions could prove to be advantageous. 12. References [1] About Us. New York Independent System Operator. http://www.nyiso.com/public/company/about_us/index.jsp [2] Assumptions to the Annual Energy Outlook 2006 with projections to 2030. Energy Information Administration, U.S. Department of Energy. March 2006. DOE/EIA- 0554(2006). http://www.eia.doe.gov/oiaf/aeo/assumption/pdf/0554(2006).pdf#page=77 [3] Average Operating Expenses for Major U.S. Investor-Owned Electric Utilities, Table 8.2. Electric Power Annual with data for 2004. Energy Information Administration, U.S. Department of Energy. November 2005. http://www.eia.doe.gov/cneaf/electricity/epa/epat8p2.html 64

[4] Cabral, Ivan F. T. Using Negative Generators to Model Elastic Loads and Maximize Social Welfare Using a Standard Optimal Power Flow. A Design Project Report Presented to the Engineering Division of the Graduate School of Cornell University. January 2000. [5] Challenges of Electric Power Industry Restructuring for Fuel Suppliers. Energy Information Administration, U.S. Department of Energy. November, 2005. http://www.eia.doe.gov/cneaf/electricity/chg_str_fuel/execsumm.html [6] Electric Power Annual 2004. Energy Information Administration, U.S. Department of Energy. DOE/EIA-0348(2004). November 2005. http://tonto.eia.doe.gov/ftproot/electricity/034804.pdf [7] Form 715 Annual Transmission Planning and Evaluation Report Instructions Federal Energy Regulatory Commission. OMB No. 1902-0171. February 2005. http://www.ferc.gov/docs-filing/eforms/form-715/instructions.asp [8] New York State Independent System Operator Annual Transmission Planning and Evaluation Report. FERC Form No. 715. April 2005. [9] NYISO Load and Capacity Data 2005. New York Independent System Operator. [10] Raikar, Santosh and Marija Ilic, Assessment of Transmission Congestion for Major Electricity Markets in the US February 2001. Massachusetts Institute of Technology Energy Laboratory. Energy Laboratory Publication # MIT EL 01-009 WP. [11] Revenue and Expense Statistics for Major U.S. Investor-Owned Electric Utilities, Table 8.1. Electric Power Annual with data for 2004. Energy Information Administration, U.S. Department of Energy. November 2005. http://www.eia.doe.gov/cneaf/electricity/epa/epat8p1.html 65