1. Slide 1 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Variable Capacity Heat Pump Sub-Committee Alternative Incentive Approaches BPA Energy Efficiency Emerging Technology June 22, 2011

2. Slide 2 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Variable Capacity Heat Pumps (VC HP = VRF + DHP) + Ductless Heat Pumps Variable Refrigerant Flow Heat Pump System

3. Slide 3 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N VC HP EE Measure Issues Need to specify cost effective applications  Numerous baselines  Varied Applications  Hard to deem savings – systems issues  Part load  Fan Energy  Ventilation air heat/cool/economizer  Incremental cost issues

4. Slide 4 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Current Approach 1.Start with wide scope, based on underlying inverter driven heat pump technology: (VC HP = VRF + DHP) 2.Review large range of applications (30 x 3 matrix) –Building type –Baseline system –Replacement system 3.Further prioritize for highest electric energy savings 4.Categorize M&V by type and size of system. 5.Develop Specific Measures by Application

5. Slide 5 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Types of BPA Energy Efficiency Measures A. Deemed Measures (RTF approved savings) Repeatable savings, with known variance Typically technology-based (CFL) B. Deemed Calculator (RTF approved) Accounts for site-based variances (lighting calculator) C. BPA Qualified Measures (Pilots to get more data) D. Custom Projects  Requires BPA approved M&V

6. Slide 6 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Problems with Current Approach 1.Reviewed 30 x 3 matrix, picked top 5, but top applications do not stand out. 2.Complexity Issue - not likely to get: –Multi Site metered data with wide applicability –Deemed measures in large numbers. –Easy, accurate, approved calculator. –Quick and easy custom measures.

7. Slide 7 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Alternative Incentive Approaches 1.Develop detailed specifications, marketing, training, EM&V, etc. for top 5 VC HP measures. 2.Generic deemed measures for one-to-one mini-split retrofit. 3.Generic verified delta KW with estimated hours of use/load factor: –Replacement/displacement of electric resistance heating –Reduction in Fan HP

8. Slide 8 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Alternative Incentive Approaches 4.Generic Calculator with key variables. 5.Whole building performance approach billing analysis. 6.Upstream Incentives. 7.Other ???

9. Slide 9 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Next Steps 1.Survey asking for input from this group. 2.Discussion on web forum. 3.Other?