HVAC, Motors, VFD, Compressed Air, Refrigeration, MISC, Custom

Transcription

1 HVAC, Motors, VFD, Compressed Air, Refrigeration, MISC, Custom

2 Session Objectives Gain a clear understanding of: New prescriptive HVAC measures Incentive changes Equipment requirements Energy saving ideas/measures Application process Custom process simplification

3 Some Eligible HVAC Measures Unitary and Split AC Systems Air- and Water-Cooled Chillers Package Terminal AC and Heat Pumps Variable Refrigerant Flow AC Guestroom Occupancy Sensor Energy Management System Air Side Economizers Water source Heat Pump-new Ground Source Heat Pumpnew EC Motors for HVAC-new Demand control ventilation in offices/parking garages-new HVAC occupancy control-new VFD for chiller

4 New HVAC Measures, Incentives Water-Cooled Chiller Centrifugal, Scroll, Helical-Rotary, or Reciprocating Air-Cooled Chiller Incentive: $15 per ton Efficiency Bonus: $2 Incentive: $20 per ton Efficiency Bonus: $2 Reduced from $20/ton, $3 efficiency bonus Reduced from $30/ton, $3 efficiency bonus Water Source Heat Pump $80 per ton New Ground Source Heath Pump $70 per ton New Electronically Commutated (EC) Motors for HVAC Demand Control Ventilation in Offices $75 per motor New $50 per 1,000 SF of conditioned area New Demand Control Ventilation in Parking Garages $90 per HP New HVAC Occupancy Control $20 per HP New

5 Unitary/Split Air Conditioning and Heat Pump Systems Improved comfort and reliability $20-$35 per ton, plus bonus $10-$15 Must exceed ARI Standards by 10% Typical energy savings 5-20% Found in many schools, retail and office buildings

6 CEE Approved Room Air Conditioners Maintenance savings, less noise Typical energy savings 10% Incentive $30 per ton Found in small offices and schools Table 1. Qualifying Room Air Conditioning Units Size (Btuh) < 8,000 (< 0.67 tons) 8,000-13,999 ( tons) 14,000-19,999 ( tons) 20,000 ( 1.68 tons) Minimum EER

7 Package Terminal Air Conditioners & Heat Pumps Better comfort and less noise Typical energy savings 10% 2 tons or less (24,000 Btuh) $30 per ton Minimum qualifying efficiency ( x capacity in Btu/h /1,000) Commonly used in hotels

8 High Efficiency Chillers Incentive based on IPLV kw/ton More precise control options Typically 10-25% energy savings Found in hospitals, large commercial, universities, industrial

9 IPLV vs NPLV: What s the Difference? IPLV Integrated Part Load Value A single number part-load efficiency figure of merit calculated per the method described in the AHRI Standard 550/590 at Standard Rating Conditions Can be expressed as kw/ton, EER, or COP Typically easiest to get from manufacturer Chillers are not listed in the AHRI database NPLV Non-Standard Part Load Value A single number part-load efficiency figure of merit calculated per the method described in the AHRI Standard 550/590 to conditions other than IPLV conditions. We will need IPLV

10 Where Do I Enter Equipment Info? IPLV goes here Don t forget to send the manufacturer spec sheet!

11 Great Resource: Check Regularly Air-Conditioning, Heating, and Refrigeration Institute

12 Using the Worksheets in Sales Process Chiller A Capacity: 310 Tons IPLV: kw/ton Just met the min IPLV Chiller B Capacity: 310 Tons IPLV: kw/ton Bonus incentive added

13 Guest Room Occupancy Sensor: Save Money, Maintain Comfort Reduces HVAC system use when rooms are unoccupied May control any HVAC units in individual rooms Typically 15-30% system savings 3-4 year payback Incentive per guest room controlled $65 for Electric Heat/AC $25 for Non-Electric Heat/AC Must be key-card or automatic occupancy detectors Typically found in hotels and motels

14 Air Side Economizers: Free Cooling Cool the building using outside fresh air AHU/RTU $25 per ton Economizers must be capable of automatically modulating between 5-95% Incentives apply to adding to existing units Found in schools, retail and commercial

15 More Ways to Save: Compressed Air, Motors, VFDs Variable frequency drives NEMA Premium motors Added compressor storage No-loss condensate drains Refrigerated cycling thermal mass air dryer Air compressor Dryer Compressed air engineered nozzle Compressed air leak repair Potential customer segments Manufacturing Hospitals Large office Universities/Schools Restaurants

16 NEMA Premium Efficiency Motors Small efficiency upgrade can produce significant savings 4+ year payback $8 to $475 per motor incentive Eligible: exceeding NEMA Premium minimum 3-phase AC induction motors horsepower (larger is custom) Typical Customer- Industrial, manufacturing, commercial

17 Variable Frequency Drives Improves power factor At least 5-15% energy savings typical, short payback $60/hp for HVAC pumps, fans $30/hp for HVAC chiller $100/hp for air compressor Typically found in HVAC retrofits and Industrial/manufacturing segments for process

18 Resources: VFDs

19 Many Uses for Compressed Air Replace constant speed air compressor with VFD air compressor Retrofit VFD on a constant speed compressor Install intelligent controllers to control a group of air compressors Replace compressed operated air knifes and bars with low powered energy efficient blowers Replace non-cycling air dryer with cycling thermal mass dryer

20 Data Needs: Compressed Air Applications Pre Application Description of the project, existing compressor and proposed compressor Age of the existing equipment, control strategy? Daily, weekly and annual operating hours 1 weeks time series kw metered data at an interval of 15 minutes along with flow and operating pressure (In CSV/Excel format) CAGI data sheet of the proposed compressor Flow rate of the proposed compressor along with the operating pressure Pre engineering calculation to reflect the savings(excel Spreadsheet) Signed customer information page Measure cost Final Application 1 weeks time series kw metered data of the installed compressor at an interval of 15 minutes along with flow and operating pressure (In CSV/Excel format) Final engineering calculation to reflect the savings(excel Spreadsheet) Invoices Signed final agreement page

21 Data Needs for 100hp VFD Prescriptive Program Size (horsepower) Existing control strategy Operating hours HVAC or non HVAC Building Type If HVAC supply/return fan, chilled water pump, condenser water pump, hot water pump, cooling tower fan, or other Signed final application and customer information page Invoices

22 Sample of Eligible Refrigeration, Food Service Measures Steam Cookers Combination Ovens Cooler Control new Floating Head Pressure Control new Energy Star Glass door refrigerator-new New Doors on Open refrigerator case-new Pre-Rinse Sprayer-new Lighting controls- new Anti-Sweat Heater Control EC Motor for Walk-in and Reach-in Refrigerator Cases Evaporator Fan Controls LED Refrigeration Case Lighting ENERGY STAR Solid and Glass Door Freezers High Efficiency Ice Makers ENERGY STAR Hot Holding Cabinet

23 Resource: ENERGY STAR Qualified Products energystar.gov

24 New 2013 Refrigeration Measures Cooler Control for Unitary Reach- In Cooler Refrigeration and Food Services $30 per unit New Measure Floating Head Pressure Control $35 per HP New Measure Oversized Condenser for Refrigeration New Doors on Open Refrigerated Case, Medium Temperature $10 per ton New Measure $250 per linear foot of case New Measure New Doors on Open Refrigerated Case, Low Temperature ENERGY STAR Glass Door Refrigerator Pre-Rinse Sprayer (<1.6 gpm, Electric Water Heating) $300 per linear foot of case New Measure $75 per unit New Measure $25 per unit New Measure

25 Anti-Sweat Heater Controls Better visual display, less fogging Up to 30% savings, < 1 year payback $25 per linear foot incentive Senses relative humidity outside display case Can also sense condensation on inner glass panes Found in grocery stores, convenience store

26 LED Refrigeration Case Lighting Improved aesthetics Up to 40% energy savings Immediate illumination at Switch-On, no ballast required Incentives are for replacing fluorescent refrigerated case lighting with DLC listed LED Incentive is $10-$12 per linear foot Found in grocery stores, convenience stores, gas stations

27 Energy Efficient Ice Machines Conserves water 4 to 7 Year Payback $100 to $150 incentive per unit Qualifications: Air-cooled, Self-contained, Icemaking heads, Remote condensing Minimum Capacity of 101 lbs of ice per 24-hour period Minimum Efficiency required is per Energy Star or CEE Tier 2 Applicable for office, school, college, hotel

28 Electronically Commutated Motors Improve power factor Up to 70% savings Produce less heat than a regular motor Incentive is based on $35 for reach in refrigerator cases Incentive is based on $50 for walk in cooler and freezers Motor is programmable for discrete operating points and rotation Found in restaurants, convenience stores, grocery

29 Other Misc. Prescriptive Measures Miscellaneous Industrial High Frequency Battery Charger $225 per Unit New Measure Refrigerator or Freezer Recycling $50 per Unit New Measure Single Phase Transformer Three Phase Single-Normal-Mode ACT-Output UPS Multiple-Normal-Mode ACT-Output UPS Transformers Incentive: $60-$670 Efficiency Bonus: $1-$20 Incentive: $60-$1,000 Efficiency Bonus: $.75-$30.25 Data Center VFD: $4.50 per Output kw VI: $4.75-$7.25 per Output kw VFI: $5.00-$12.50 per Output kw VFD/VI: $4.00-$5.50 per Output kw VFD/VFI: $6.50-$7.50 per Output kw New Measure New Measure New Measure New Measure

30 New High Efficiency Transformers Better reliability For single phase or three phase transformers meeting or exceeding NEMA Premium Efficiency requirements at 35% load are eligible Base Incentive $60-$1,000, plus efficiency bonus $0.75-$30.25 Utility owned transformers NOT eligible Typical segment, large commercial, schools, industrial

31 New Construction/Major Renovation Whole Building Path

32 How to Apply? NC/Major Renovation Send pre-application during design phase of project Lighting schedule Mechanical schedule Energy model if applicable (whole building) Specification sheets (prescriptive) LEED report (whole building) Final Application Payment schedule or invoicing Certificate of occupancy Final agreement signature page Updated model -if applicable (whole building)

33 How Do I Apply? Fill out customer information page and prescriptive worksheet Gather scope of project, spec sheets on proposed measures Have customer sign the customer information page and send the gathered information to aepohio incentives@dnvkema.com or use the online application

34 What is a Custom Measure? Energy Savings Measure NOT found on Prescriptive list Pre-approval application required Existing equipment should be operational Pre-measurements may be required Submit savings estimate Provide the methods used to determine estimate Project must meet utility cost effectiveness test which typically meets a 1-7 year payback Please submit applications even if you re calculations don t meet the 7 year payback, the program team will re-look at it

35 Custom Application $100 per kw removed Fill out small description of project

36 Some Common Custom Projects Process improvements New technology applications Energy Management Systems over 50,000 sq ft. Large Air Compressors Compressed Air System Optimization Injection Molding Machines Cooling tower optimization Building Envelope Measures Free cooling- water side economizers

37 Acceptable Calculation Methods Engineering calculations Simplest method to document savings Staff will assist with engineering calculations, please ask for help May be well-established engineering procedures, such as the binmethod Whole building modeling methods Measures with building-wide impacts or impacts across a number of systems Use generally accepted public domain energy modeling software Provide both the actual billing calibrated base case and post-case input files and annotate the files Equipment or process sub-metering Whole building metering/billing analysis

38 Injection Molding Machines VFD on hydraulic Machines Nameplate information of the machine(mfg, model, power data and tonnage) Project scope 1 week time series pre kw metered data in 5 minutes interval Machine production throughput (lbs/hr). Annual production in lbs of the molding machine 1 week time series post kw metered data in 5 minutes interval Itemized invoices

39 Injection Molding Machine Initiative Upgrading Hydraulic or Hybrid to all electric 10 applications from 10 facilities until 4/30/2013 Pre-applications will be reserved at $0.05 per kwh estimated energy savings Final incentive will be paid at $0.07 per kwh of actual monitored energy savings

40 Energy Management System Example Install new DDC system replacing the old pneumatic control system Add instrumentations and advanced features to existing EMS system to achieve energy savings 1. Centralized control scheduling, settings of building HVAC and Lighting 2. Control time of use 3. Staging/sequencing of chillers, pumps and AHUs 4. Demand side ventilation AEP Ohio Incentive -$0.20 per sq. ft of conditioned space < 50,000 sq ft. Or >= 50,000 sq. ft = custom calculation $0.08 per kwh

41 Custom Example: Large VFD >200hp Assume that this is an early replacement project-adding a VFD to a device that is currently operating Pre-application is required for custom incentives VFDs generally must have automatic feedback speed control (If motor is 600V or less) AEP Ohio Business team inspector will likely install data-logging kw meters for a period of 1 week, compared against production, flow, or other metric that makes sense to normalize AEP Ohio will then, if possible, estimate the energy savings based on the future control strategy as we understand it If we are unable to predict energy savings, we can reserve projects based on customer/contractor supplied predictions

42 Project is now Complete Custom Example: Large VFD >200hp After we receive the Final Application we will likely postmeter the equipment for at least 1 week This will be normalized against production, flow, or other metric as recorded on the pre-application review Savings will then be extrapolated for a full year s value Final incentives are $0.08 per first year kwh up to 50% of project costs (not counting internal labor costs) FINAL INCENTIVES ARE BASED ON ACTUAL ENERGY SAVINGS FOUND IN FINAL APPLICTION THIS MAY DIFFER SUSTANTIALLY FROM RESERVED VALUE!

43 Questions? Thank You