1 Final Report 2008 Process Evaluation of California Statewide Aggregator Demand Response Programs Prepared For: Prepared By: Jane S. Peters, Ph.D. Dulane Moran Research Into Action, Inc. August 6, 2009
3 = ACKNOWLEDGEMENTS We would like to thank the program staff members at Pacific Gas and Electric, San Diego Gas and Electric, and Southern California Edison for their time and willingness to discuss their experiences with the Capacity Bidding Program, the Aggregator Managed Portfolio, and the Demand Response Resource Contracts. We appreciate the insight and perspectives offered by Kathy Rios and John Hernandez at PG&E; Theron Mehr, Pat Boyd, and Amy Broussard at SCE; and Joe Semerad at SDG&E. Additionally, we would like to thank contacts at both active and inactive aggregation firms for their willingness to discuss their experience with these programs and their perspectives on these activities in California. Finally, we want to acknowledge the program participants representatives from all types of organizations throughout California for their willingness to speak with us about their experiences with the program and with demand response curtailment activities in general.
5 = TABLE OF CONTENTS EXECUTIVE SUMMARY... I EVALUATION OVERVIEW... I DATA COLLECTION AND SURVEY SAMPLE DESIGN... II KEY FINDINGS... II CONCLUSIONS AND RECOMMENDATIONS...V 1. INTRODUCTION... 1 SCOPE OF THE EVALUATION...1 PROGRAMS EVALUATED...1 Capacity Bidding Program...1 Bilateral Contract Programs...2 Logic Model and Program Theory...2 Program Theory...5 METHODOLOGY AND POPULATIONS...6 THIS REPORT PROGRAM DESCRIPTIONS...9 DEMAND RESPONSE PROGRAM PORTFOLIOS...9 Aggregator-Driven Programs...10 THE CAPACITY BIDDING PROGRAM...12 Trigger...12 Marketing...12 Other Features...13 Nomination and Settlement...13 Utility-Specific Experiences: CBP at Pacific Gas & Electric...15 Utility Specific Experiences: CBP at Southern California Edison...17 Utility Specific Experiences: CBP at San Diego Gas & Electric...18 BILATERAL CONTRACT PROGRAMS...20 PG&E s Aggregator Managed Portfolio (AMP) Program...21 SCE s Demand Resource Contracts (DRC) Program...24
6 Page ii TABLE OF CONTENTS LESSONS LEARNED...28 Respect for Aggregators...28 Utility-Process Barriers...29 Role of Account Executives...30 SUMMARY AGGREGATOR EXPERIENCES...33 POPULATION AND SAMPLE...33 Aggregator Characteristics...35 SUMMARY & FINDINGS PARTICIPANT EXPERIENCES...49 METHODOLOGY...49 Guidelines for Reading this Chapter...52 Participant Profile...53 Program Awareness and Reasons for Participation...56 Decision-Making...57 Technologies...59 Event Notification...63 RESPONSE, CURTAILMENT & PAYMENT...67 Response to Curtailment Events...67 Backup Generation...70 CURTAILMENT EXPERIENCE...70 SETTLEMENT AND PAYMENT...71 SATISFACTION...73 Satisfaction with Program Experiences...73 Program Expectations...74 Suggestions for Improvement...78 SUMMARY AND FINDINGS...81 Summary...81 Findings POST-EVENT SURVEY RESULTS...84 POPULATION AND SAMPLE...84 SUMMARY...85 FINDINGS...85
7 Page iii TABLE OF CONTENTS SURVEY RESULTS...86 Demand Response Goals and Strategies...87 Method, Timeframe, and Frequency of Notifications...89 Internal Communication and Coordination...90 Demand Response Performance...91 Communication with the Aggregator...94 Overall Experience with the Program CONCLUSIONS AND RECOMMENDATIONS...96 KEY FINDINGS...96 CONCLUSIONS AND RECOMMENDATIONS...99 APPENDICES APPENDIX A: METHODOLOGY...A-1 Survey Instrument Design...A-1 Sampling Strategy and Plan...A-1 Obtaining Customer Contacts... A-1 Merging Curtailment Responses and Load Data... A-3 Identification of the Population and Samples... A-4 Data collection...a-6 General Participant Survey... A-6 Post-Event Survey... A-7 Final Data and Weighting...A-7 Data Analysis...A-10 APPENDIX B: GENERAL PARTICIPANT SURVEY...B-1 APPENDIX C: POST-EVENT PARTICIPANT SURVEY...C-1
8 Page iv TABLE OF CONTENTS
9 ES EXECUTIVE SUMMARY EVALUATION OVERVIEW This process evaluation is Volume 3 of a three-part project focused on aggregator-driven demand response programs operating in California in Volume 1 presents the results from an ex post and ex ante impact evaluation focused on estimating the load impacts. 1 Volume 2 presents the results from a baseline analysis study. 2 This evaluation investigated three demand response programs operating in the territories of California s electric investor-owned utilities (IOUs): Pacific Gas & Electric (PG&E), Southern California Edison (SCE), and San Diego Gas and Electric (SDG&E). The three demand response programs include: Capacity Bidding Program (CBP) a statewide program operating in the territories of all three IOUs Aggregator Managed Portfolio (AMP) offered by PG&E Demand Response Resource Contracts (DRC) offered by SCE While CBP is a statewide program, some components and processes vary between the IOUs. The evaluation focuses on the experiences of the utilities, aggregation firms, and customers involved in the programs during Program Year This project included process and impact evaluation activities designed to assess how effectively the programs have been administered and to develop information on customer awareness of and response to the programs. This volume presents the results of the process evaluation work, which included: Developing a logic model and program theory for the portfolio of aggregation programs Conducting in-depth interviews with program staff and representatives from aggregation firms 1 2 Christensen Associates Energy Consulting, LLC Load Impact Evaluation of California Statewide Aggregator Demand Response Programs. Volume 1: Ex Post and Ex Ante Report. May 1, Christensen Associates Energy Consulting, LLC Load Impact Evaluation of California Statewide Aggregator Demand Response Programs. Volume 2: Baseline Analysis of AMP Aggregator Demand Response Program. May 1, 2009.
10 Page II EXECUTIVE SUMMARY Fielding participant phone surveys Conducting surveys with a sub-set of consistent and inconsistent load providers. This evaluation was performed under the guidance of the Demand Response Measurement and Evaluation Committee, consisting of representatives from each of the three electric IOUs, the California Energy Commission (CEC) and the California Public Utilities Commission (CPUC). DATA COLLECTION AND SURVEY SAMPLE DESIGN This process evaluation included in-depth interviews with representatives of each of the five programs reviewed: AMP, DRC, and CBP contacts at each of the three participating IOUs. In addition, we conducted two sets of surveys with participants. The first survey comprised a statistically valid sample of over 200 participants and covered a range of process issues, including: communication and interaction with the program; expectations from participation; overall satisfaction with various components of the programs; and future demand response intentions. The second survey was a qualitative conversation with a subset of participants that had been previously categorized as consistent or inconsistent responders, based upon the load impact analysis completed by the impact evaluation team. 3 KEY FINDINGS The following are the key findings from this current process evaluation. Program processes had become more streamlined and routine in Staff at all three utilities reported improvements to their program processes in Most often, these involved efforts to streamline and facilitate enrollment. Many program processes that were new or under development in 2007 had become routine in Contacts from aggregation firms and from the three utilities reported developing solid working relationships with each other. These factors made the 2008 program year a positive experience for everyone involved. The value and expertise of the aggregation firms has become apparent to utility staff. Utility contacts expressed appreciation for the work of the aggregation firms and their perceived ability to identify and recruit a variety of customers for demand response curtailment; utility contacts also described becoming more aware of the specific benefits of working with aggregators. Utility contacts were optimistic that aggregation firms were tapping into customers who had not already participated in demand response programs. This belief was confirmed 3 For a more extensive description of the methodology and sampling strategy, see Appendix A.
11 EXECUTIVE SUMMARY Page III during the participant surveys, in which over 75% of contacts reported that their organization had not previously participated in demand response programs. Both utility contacts and those from aggregation firms reported that account representatives had been reluctant advocates for aggregation demand response programs. However, while over half of participants surveyed reported they had first heard of the program from their aggregator, 25% reported hearing of the program first from their account representative, indicating that account representatives are marketing the program. Aggregators enroll participants in a specific program by considering the price paid per curtailed kw and the level of risk. Aggregators participating in multiple programs consider payment levels and risk in deciding between the CBP and AMP or DRC. Aggregators enrolled in only one program have no choice when nominating load for the month. However, aggregators enrolled in multiple programs in one service territory must decide between programs. Aggregation contacts report enrolling customers and nominating load based on the price paid for capacity and the potential for risk if the customer fails to meet curtailment goals. Other contacts sought to benefit from particular features of the CBP, or used the program as a reserve for load they were considering adding to their DRC or AMP contract. Because of these comments, we expect that, as aggregators begin to exceed their contractual obligations associated with DRC and AMP, they will increasingly place excess capacity into the CBP. Participants reported no major problems with their 2008 program experience. Only about a quarter of the contacts reported having questions that had to be resolved prior to enrollment, of this group, the most common concern centered on penalties and program flexibility. In general participants reported: The notification strategy worked well for their organization. Payment amounts met or exceeded their expectations. The payments were received within the timeframe they expected. They intended to participate in the 2009 program. We found few discernable differences between participants characterized as consistent and inconsistent responders. The post-event survey results revealed no discernible differences in how consistent and inconsistent responders answered questions related to their setting load reduction goals, their experience of event notifications, the actions they typically took to curtail, their methods for tracking demand response performance, and their communications with aggregators The results of the participant survey indicate that having a specific curtailment plan was related to the effectiveness of demand response activities. Consistent responders were
12 Page IV EXECUTIVE SUMMARY significantly more likely to report possessing a specific action plan than inconsistent responders. Enabling technology is installed to facilitate participation, but most participants continue to rely on manual curtailment activities. When asked what type of action they took in response to the curtailment request, most participants reported manually shutting down equipment. This was followed, somewhat distantly, by manually launching an automatic curtailment system or program. A majority of participant contacts reported not having an EMS system installed prior to enrollment, and few reported installing one after enrolling in the aggregator s demand response program. In general, participant contacts who reported that they or their aggregator had installed equipment to enable participation could only vaguely describe the type of equipment most mentioned metering equipment or consumption monitoring equipment. There is some indication that participants enrolled in SCE s DRC program have more equipment installed particularly sub-meter, PIB, and communication equipment. These participants were significantly more likely to report that their aggregators had installed technologies in their facilities when compared to other programs. Participants report taking actions in response to curtailment requests, but many contacts believe their participation is optional. Almost all participants that received a notification request reported taking action to reduce their energy use. The most common action was to manually shut down equipment. However, more than three-quarters believed that their response to the curtailment request was optional. We found no difference between programs or utility territory, indicating a widespread perception among participants that they do not necessarily have to curtail when called. It is not clear whether this is communicated to them by their aggregator, or if the aggregators are unaware of this perception. Few participants are turning to backup generation to assist in curtailment. While almost 40% of participant contacts reported having access to back up generation, only 5% ultimately reported that they used this equipment to comply with curtailment requests. The diffuse and opaque nature of the aggregated load providers and their relationships with their aggregators creates challenges in obtaining information and characterizing participants. We were able to interview 10 of the 11 active aggregators, but experienced difficulty obtaining the customer contact information required to launch the customer survey. Several aggregation firms were unresponsive to requests for customer contact information, while others were quick to provide this information. In some cases, utility staff had to compile lists from paper enrollment files. Regardless of
13 EXECUTIVE SUMMARY Page V the source of contact information, it remained quite difficult to link a specific contact to a service agreement (SA ID) as reported in the data files provided to the impact evaluation. Since SA ID numbers do not necessarily map to one meter or badge number, or even one location, the process evaluation contact lists had to be linked to organizations as they appear in the utility customer information system. This listing may or may not match the organization name as reported by the aggregator, and thus, for about 40% of cases, we were unable to link the contact name to a specific event. Additionally, since the actual curtailment goals are established in agreements between aggregators and their customer load providers, the impact analysis can only assess if a response occurs, not whether or not participants are consistently or inconsistently meeting their demand response goals. The post-event surveys were too distant from curtailment events to permit in-depth assessment with contacts. We used the results of the impact team s load impact coefficient analysis to classify participants into categories of consistency. This strategy did not allow for an in-depth understanding of the differences between consistent and inconsistent responders, particularly since interviews followed curtailment events by six months or more. A post-event survey conducted immediately after a demand response event would be more likely to yield detailed responses, but could fail to identify meaningful differences between consistent and inconsistent responders because: Curtailment goals could be so low that they fail to emerge in post-event analyses of performance. Participants may not have a clear sense of their demand response performance relative to their load reduction commitments. CONCLUSIONS AND RECOMMENDATIONS In light of the findings from this process evaluation, we make the following conclusions and recommendations: Conclusion 1: Opportunities for simplifying the eligibility and enrollment process should be explored. All three utilities require the Add/Delete form for the CBP, which they developed collaboratively when they agreed to hire APX and use the same enrollment form. AMP also requires an Add/Delete form in order to formally enroll a participant. However, in some cases, an SA template, a Customer Information Standardized Request form (CISR) or a Third Party Authorization (TPA) may also be required. Contacts from utilities and aggregation firms both noted the difficulties associated with the CISR and wondered if this form could be replaced. Only DRC does not require an Add/Delete form, instead relying on the CISR alone.
14 Page VI EXECUTIVE SUMMARY The enrollment forms serve two major purposes: (1) they ensure that the customer is qualified to participate in the aggregator s demand response program; and (2) they ensure that the customer is aware of and agreeing to participate in the program. It may be possible to design a form that fulfills both purposes. The CISR contains no specific reference to demand response program enrollment, but can be used to determine eligibility, while the Add/Delete form clearly indicates that the customer is enrolling in a demand response program with an aggregation firm, regardless of eligibility. Recommendation A: Consider enabling eligibility verification of a given SA ID or customer on-line through a log-in feature Recommendation B: Consider replacing the CISR with a form designed specifically for aggregation demand response activities, and/or merging the CISR and Add/Delete into a single form Conclusion 2: The APX interface caused problems for aggregators with numerous enrolled meters. In 2008 the interface required aggregators to re-load their entire nomination list every month by dragging and dropping each SA ID into the web-based form. Providing access to prior month s lists or defaulting to the last nomination list could simplify and speed up the process for aggregators, who could then focus only on making specific, relevant changes. Recommendation: Encourage APX to improve the nomination interface by creating a nomination process that defaults to the prior month. Conclusion 3: Ways of speeding up the settlement process should be explored. Staff from all programs described a somewhat complicated process of receiving, verifying, and confirming meter data prior to releasing it to aggregators. Obtaining settlement-quality meter data generally requires the involvement of multiple people or departments and can take time. While staff reported getting this information out to aggregators within 60 days, this could result in statements being delivered to participants up to 90 days after an event. Aggregators noted that the timeframe for settlements and payments was problematic, with more than half of them saying it could take months to receive payment. Recommendation A: Compare the initial meter data with the final settlementquality meter data. If the difference between the two data sets is nominal, consider developing a true-up process, whereby initial curtailment is calculated and adjusted if necessary in the next program month to address any difference between the initial calculation and the SQMD. Recommendation B: Consider assigning all participants to calendar billing to avoid settlement delays caused by meters scheduled to be read late in the month.
15 EXECUTIVE SUMMARY Page VII Conclusion 4: Demand response program options should be streamlined and the features of each clarified on utility websites. Documenting the program listings on the utility websites confirmed comments from aggregator contacts that numerous demand response programs are listed on utility websites. Given the large number of demand response programs listed on utility websites, it is difficult for many customers (and aggregators) to gauge eligibility and determine which program is most appropriate. Recommendation: Consider allowing customers to enter their account or SA ID information to obtain a list of demand response programs for which they are eligible. Conclusion 5: Aggregators can be helped in marketing demand response programs by translating the triggers into meaningful social and individual benefits. Aggregators struggled to explain the trigger and/or likelihood of events to potential CBP participants. The official heat-rate trigger is difficult for aggregators to explain or predict. Few aggregators reported they were able to predict the likelihood of curtailment events, particularly for the CBP. Post-event survey respondents indicated that knowing the reason behind the demand response event could help them enlist the cooperation of others by helping them communicate about the event to large groups of students, staff, or customers. Participants believe they are curtailing because of grid-reliability issues. When asked if they knew why they had been asked to curtail in 2008, almost half reported they believed they were responding to grid-reliability issues, including a subset specifically mentioning they were asked to curtail to avoid brownouts and rolling blackouts. Demand response programs often appeal to participants for both social and individual benefits, and both are important motivators for participation. Improved understanding of when and why curtailment events are called could help aggregators recruit customers and help customers understand why they are being called to curtail. Recommendation: Consider clarifying or refining the reasons for demand response with both social and individual benefits to make it easier for aggregators to communicate to their customers the circumstances under which curtailment events are likely. Conclusion 6: Many organizations appear poised to undertake a variety of energy efficiency upgrades and/or consider all options of reducing their peak demand, including investments in permanent demand reduction. All participant contacts were asked if they were considering installing additional equipment or technologies that might allow for additional demand response during events. Twenty-three percent reported considering additional equipment. When asked to describe the equipment, contacts described a variety of equipment, including efficiency upgrades (such as efficient lighting
16 Page VIII EXECUTIVE SUMMARY and HVAC upgrades) and solar panels that might reduce the organization s overall demand, but would be unlikely to help them drop additional load during a curtailment event. The frequency of the solar panel response is notable because the net metering that generally accompanies solar panel installation would disqualify an organization from participating in any of the aggregator-driven demand response programs as currently structured. Recommendation A: Explore the possibility of including participants with solar net metering. Recommendation B: Identify strategies for linking participants with energy efficiency programs, as many of these organizations are committed to doing everything possible to reduce their energy use.
17 1 INTRODUCTION This process evaluation is Volume 3 of a three-part project focused on aggregator-driven demand response programs operating in California in Volume 1 presents the results from an ex post and ex ante impact evaluation focused on estimating the load impacts. 4 Volume 2 presents the results from a baseline analysis study. 5 SCOPE OF THE EVALUATION This evaluation investigated three demand response programs operating in the territories of California s electric investor-owned utilities (IOUs): Pacific Gas & Electric (PG&E), Southern California Edison (SCE), and San Diego Gas and Electric (SDG&E). The evaluation focuses on the experiences of the utilities, aggregation firms, and customers involved in the programs during Program Year The three demand response programs include: Capacity Bidding Program (CBP) a statewide program operating in the territories of all three IOUs Aggregator Managed Portfolio (AMP) offered by PG&E Demand Response Resource Contracts (DRC) offered by SCE While CBP is a statewide program, some components and processes vary between the IOUs. PROGRAMS EVALUATED Capacity Bidding Program The Capacity Bidding Program (CBP) is a statewide price-responsive program developed to succeed the California Power Authority s Demand Reserves Partnership program that ended in The CBP is a tariff program that provides specific payments to nonresidential customers who volunteer to reduce their energy use (load or capacity) by a specific amount for each month 4 5 Christensen Associates Energy Consulting, LLC Load Impact Evaluation of California Statewide Aggregator Demand Response Programs. Volume 1: Ex Post and Ex Ante Report. May 1, Christensen Associates Energy Consulting, LLC Load Impact Evaluation of California Statewide Aggregator Demand Response Programs. Volume 2: Baseline Analysis of AMP Aggregator Demand Response Program. May 1, 2009.
18 Page 2 CHAPTER 1. INTRODUCTION of the CBP season (May through October). The CBP first was implemented in Bilateral Contract Programs Following direction from the CPUC, PG&E and SCE each issued an RFP to establish bilateral agreements for additional demand-response resources. In May 2007, the Commission approved five such demand-response agreements between PG&E and third-party aggregators. These contracts became the Aggregator Managed Portfolio (AMP). The CPUC approved one such agreement for SCE in early SCE proposed eight additional aggregator contracts in October 2007; in March 2008, the CPUC approved four of them. These contracts became the Demand Resource Contracts (DRC) program. Aggregator Managed Portfolio (AMP) PG&E s Aggregator Managed Portfolio (AMP) allows aggregators to negotiate agreements with PG&E to deliver a specified amount of demand response for a price established in the contract. As negotiated bilateral contracts, the terms (both the level of demand-response capacity promised and the price paid for it) between PG&E and each aggregator can vary. Demand Resource Contracts (DRC) Program SCE s Demand Resource Contracts (DRC) program procures demand response capacity through aggregators responsible for marketing the opportunity, identifying and enrolling eligible customers, notifying those customers of curtailment events, and reconciling payments for customers who curtail their energy use during events. The DRC program is guided by contracts negotiated between each aggregator and SCE. As in the AMP program, the terms (both the level of demand-response capacity promised and the price paid for it) between SCE and each aggregator can vary. Logic Model and Program Theory Prior to beginning any of the data-collection work, the evaluation team developed a program logic model for the statewide CBP from both the utility and aggregator perspectives (Figure 1.1 and Figure 1.2, respectively). These two components implement the program to meet their own goals and objectives. Ultimately, we reviewed these logic models and revised them to reflect the broader logic inherent in the aggregator-driven program model. We found that, while the programs vary slightly in process (requiring different forms, payment amounts that vary by tariff or contract terms, whether or not the settlement occurs in-house or is calculated by the third-party vendor, APX), they do not vary significantly in theory or logic: all five programs rely upon aggregators to identify and recruit customers capable of reducing their energy use when requested by the utility in exchange for payment.
19 CHAPTER 1. INTRODUCTION Page 3 Figure 1.1: Logic Model Utility Perspective Aggregator-Driven Demand Response Programs ACTIVITIES AGGREGATORS ID AND RECRUIT ELIGIBLE CUSTOMERS SCREENING AND ENROLLMENT DR EVENTS CALLED BY PROCUREMENT VERIFICATION OF CURTAILMENT SETTLEMENT OUTPUTS Pool of Qualified Customers Identified; Customer Information Submitted Eligible Customers Screened & Enrolled DR Capacity Nominated Each Month Number of Events kw Dropped in Response to Curtailment Event Results of Demand Response Event Analyzed and Verified Dollar Value of Payments Provided or Collections Assessed SHORT-TERM OUTCOMES Aggregators Share Capacity and Energy Payments with Customers per Customer Agreements Payments Dispersed Based on Measured Results MEDIUM-TERM OUTCOMES Utility Customers Gain Experience with Curtailment; Financial Benefits Accrue Cost-Effective kw Reduction and Reliable DR Capacity Allows Utility to Meet Loading Order Preference and Avoid Higher Cost Options at Critical Peak Utility Gains Operational Efficiency Through Use of Aggregators to Identify, Enroll, and Manage Groups of Demand Response Participants LONG-TERM OUTCOMES Improved System Stability at Lower Cost to Ratepayers Environmental and Economic Benefits Accrue Because of Avoided Generation and Reduction of Load at Critical Peaks Improved Understanding of How to Manage DR Resources and Curtailment Events
20 Page 4 CHAPTER 1. INTRODUCTION Figure 1.2: Logic Model Aggregator Perspective Aggregator-Driven Demand Response Programs ACTIVITIES IDENTIFY AND RECRUIT CUSTOMERS INTERACT WITH UTILITY MANAGE CURTAILMENT EVENTS TRACK CUSTOMER PERFORMANCE & NOMINATIONS OUTPUTS Direct Contact, Website Information, Collateral Developed Pool of Qualified Customers Identified Customer Information Requests Submitted to Utility and Verified Number of Events; Quantity of Demand Reduced Quantity of Curtailment Monitored and Documented Number of Service Agreements Signed and Monitored; Customers Added and Deleted from Curtailment List as Necessary SHORT-TERM OUTCOMES Eligible Customers Screened, Enrolled, and Nominated kw Dropped in Response to Utility- Called Curtailment Event Settlement with the Utility Results in Payments to Aggregator for Documented Demand Reduction MEDIUM-TERM OUTCOMES Ongoing Customer Relationships Ensure that Only Willing Customers Are Contacted for Curtailment in a Given Month Payments to Customers Distributed According to Aggregator Agreements with Customers DR Capacity Built and Sold to Utility; Financial Benefits Accrue to Aggregators Able to Reliably Meet their Curtailment Commitments Aggregators Gain Experience in Identifying Customers and Curtailing Demand in Response to Critical Peak Periods As Identified by the Utility LONG-TERM OUTCOMES Customers Gain Experience in Curtailment; Financial Benefits Accrue to Participants Improved Understanding Among Aggregators of How to Identify and Manage DR Resources and Respond to Curtailment Events
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