WAC 51-11C-40620. Section C406.2 — Additional energy efficiency credit measures

C406.2 Additional energy efficiency credit measures. Each energy efficiency credit measure used to meet credit requirements for the project shall include efficiency that is greater than the energy efficiency required for the building type and configuration requirements in Sections C402 through C405. Measures installed in the project that meet the requirements in Sections C406.2.1 through C406.2.14 shall achieve the credits listed for the measure and occupancy group in Table C406.2(1) or Table C406.2(2) or where calculations required by Sections C406.2.1 through C406.2.14 create or modify the table credits, the credits achieved shall be based upon the section calculations. Projects that chose to comply with the fossil fuel pathway in Section C401.3 shall use Table C406.2(2) to achieve credits. For mixed fuel space heating systems, the number of space heating energy efficiency credits available for measures with a prorating flag "Heat" are calculated using the following equation: C SH = CHP SH x B/C + CFF SH x (1 – B/C) Where: C SH = Blended credits for mixed fuel systems. CHP SH = Credits available in Table C406.2(1). CFF SH = Credits available in Table C406.2(2). B = Installed space heating capacity in kBTU/h of space heating appliances that comply with any of the exceptions to Section C403.1.4. C = Total installed space heating capacity in kBTU/h of all space heating appliances. Where: C SH = Blended credits for mixed fuel systems. CHP SH = Credits available in Table C406.2(1). CFF SH = Credits available in Table C406.2(2). B = Installed space heating capacity in kBTU/h of space heating appliances that comply with any of the exceptions to Section C403.1.4. C = Total installed space heating capacity in kBTU/h of all space heating appliances. For mixed fuel service water heating systems, the number of service water heating energy efficiency credits available for measures with a prorating flag "SWH" are calculated using the following equation: C WH = CHP WH × B/C + CFF WH × (1 – B/C) Where: C WH = Blended credits for mixed fuel systems. CHP WH = Credits available in Table C406.2(1). CFF WH = Credits available in Table C406.2(2). B = Installed service water heating capacity in kBTU/h of service water heating appliances that comply with any of the exceptions to Section C404.2.1. C = Total installed service water heating capacity in kBTU/h of all service water heating appliances. Where: C WH = Blended credits for mixed fuel systems. CHP WH = Credits available in Table C406.2(1). CFF WH = Credits available in Table C406.2(2). B = Installed service water heating capacity in kBTU/h of service water heating appliances that comply with any of the exceptions to Section C404.2.1. C = Total installed service water heating capacity in kBTU/h of all service water heating appliances. Table C406.2(1) Efficiency Measure Credits Measure Title Applicable Section Prorating Flag Occupancy Group Group R-1 Group R-2 Group B Group E Group M All Other 1. Dwelling unit HVAC control C406.2.1 Heat NA 7 NA NA NA NA 2. Improved HVAC TSPR a C406.2.2.1 Heat NA 8 11 17 22 NA 3. Improve cooling and fan efficiency C406.2.2.2 Heat 2 2 3 4 3 2 4. Improve heating efficiency C406.2.2.3 Heat 2 3 3 10 16 7 5. Improved low-carbon district energy system (10% better) C406.2.2.4 3 3 4 11 17 8 6. Improved low-carbon district energy system (20% better) b C406.2.2.5 9 10 12 33 52 24 7. High performance DOAS C406.2.2.6 Heat 31 31 21 39 40 21/ (A) 40 c 8. Fault detection & diagnostics (FDD) C406.2.2.7 Heat 2 2 2 6 9 4 9. 10% reduced lighting power C406.2.3.1 Heat 7 4 18 16 20 15 10. 20% reduced lighting power d C406.2.3.2 Heat 13 8 36 32 40 29 11. Lamp efficacy improvement C406.2.3.3 Heat 5 6 NA NA NA NA 12. Residential lighting control C406.2.4.1 Heat NA 8 NA NA NA NA 13. Enhanced lighting control C406.2.4.2 Heat 1 1 6 6 11 6 14. Renewable energy C406.2.5 7 12 13 13 10 11 15. Shower drain heat recovery C406.2.6.1 SWH 9 30 NA 3 NA NA 16. Service water heat recovery C406.2.6.2 SWH 35 111 13 14 (Grocery) 41 e NA 17. Heat pump water heating C406.2.6.3 SWH 72 54 1 13 5 29 f 18. High efficiency service water heating, gas-fired C406.2.6.4 SWH NA NA NA NA NA NA 19. Heat trace system C406.2.7.1 SWH 6 13 4 1 NA 6 20. Point of use water heater C406.2.7.2 SWH NA NA 19 5 NA NA 21. Service hot water distribution right sizing C406.2.8 13 42 NA NA NA NA 22. High performance service hot water temperature maintenance system C406.2.9 6 13 4 1 NA 6 23. High efficiency service hot water circulation system C406.2.10 3 6 2 1 NA 4 24. Low flow residential showerheads C406.2.11 SWH 3 3 NA NA NA NA 25. Enhanced envelope performance g C406.2.12 Heat 24 20 13 5 19 14 26. Base reduced air leakage g C406.2.13.1 29 24 6 3 9 11 27. Enhanced reduced air leakage g C406.2.13.2 Heat 53 44 11 5 16 20 28. Enhanced commercial kitchen equipment C406.2.14 Heat 30 h 18 h 18 h 30 h 30 h 31 h 29. Enhanced residential kitchen equipment C406.2.15 Heat 12 19 NA NA NA NA 30. Enhanced residential laundry equipment C406.2.16 Heat NA 6 NA NA NA NA 31. Heat pump clothes dryers C406.2.17 Heat 6 6 NA NA NA NA 32. Efficient elevator equipment C406.2.18 Heat 3 5 5 5 4 4 Measure Title Applicable Section Prorating Flag Occupancy Group Group R-1 Group R-2 Group B Group E Group M All Other 1. Dwelling unit HVAC control C406.2.1 Heat NA 7 NA NA NA NA 2. Improved HVAC TSPR a C406.2.2.1 Heat NA 8 11 17 22 NA 3. Improve cooling and fan efficiency C406.2.2.2 Heat 2 2 3 4 3 2 4. Improve heating efficiency C406.2.2.3 Heat 2 3 3 10 16 7 5. Improved low-carbon district energy system (10% better) C406.2.2.4 3 3 4 11 17 8 6. Improved low-carbon district energy system (20% better) b C406.2.2.5 9 10 12 33 52 24 7. High performance DOAS C406.2.2.6 Heat 31 31 21 39 40 21/ (A) 40 c 8. Fault detection & diagnostics (FDD) C406.2.2.7 Heat 2 2 2 6 9 4 9. 10% reduced lighting power C406.2.3.1 Heat 7 4 18 16 20 15 10. 20% reduced lighting power d C406.2.3.2 Heat 13 8 36 32 40 29 11. Lamp efficacy improvement C406.2.3.3 Heat 5 6 NA NA NA NA 12. Residential lighting control C406.2.4.1 Heat NA 8 NA NA NA NA 13. Enhanced lighting control C406.2.4.2 Heat 1 1 6 6 11 6 14. Renewable energy C406.2.5 7 12 13 13 10 11 15. Shower drain heat recovery C406.2.6.1 SWH 9 30 NA 3 NA NA 16. Service water heat recovery C406.2.6.2 SWH 35 111 13 14 (Grocery) 41 e NA 17. Heat pump water heating C406.2.6.3 SWH 72 54 1 13 5 29 f 18. High efficiency service water heating, gas-fired C406.2.6.4 SWH NA NA NA NA NA NA 19. Heat trace system C406.2.7.1 SWH 6 13 4 1 NA 6 20. Point of use water heater C406.2.7.2 SWH NA NA 19 5 NA NA 21. Service hot water distribution right sizing C406.2.8 13 42 NA NA NA NA 22. High performance service hot water temperature maintenance system C406.2.9 6 13 4 1 NA 6 23. High efficiency service hot water circulation system C406.2.10 3 6 2 1 NA 4 24. Low flow residential showerheads C406.2.11 SWH 3 3 NA NA NA NA 25. Enhanced envelope performance g C406.2.12 Heat 24 20 13 5 19 14 26. Base reduced air leakage g C406.2.13.1 29 24 6 3 9 11 27. Enhanced reduced air leakage g C406.2.13.2 Heat 53 44 11 5 16 20 28. Enhanced commercial kitchen equipment C406.2.14 Heat 30 h 18 h 18 h 30 h 30 h 31 h 29. Enhanced residential kitchen equipment C406.2.15 Heat 12 19 NA NA NA NA 30. Enhanced residential laundry equipment C406.2.16 Heat NA 6 NA NA NA NA 31. Heat pump clothes dryers C406.2.17 Heat 6 6 NA NA NA NA 32. Efficient elevator equipment C406.2.18 Heat 3 5 5 5 4 4 a Projects using Item 2 shall not use Items 3, 4, or 7. b Projects using C406.2.2.5 shall not use C406.2.2.4. c For C406.2.2.6, occupancy Group A achieves 40 credits while other occupancy groups within the "all other" category achieve 21 credits. d Projects using C406.2.3.2 shall not use C406.2.3.1. e Service water heat recovery and heat pump water heating are available in Group M only for grocery stores larger than 10,000 ft 2 . Large mixed retail with full grocery and butcher sections shall achieve half the credits. This credit is not available where refrigeration recovery to heat service hot water is used to meet the requirements of Section C403.9.2.3. f Heat pump water heating efficiency credits are available in the "all other" category only for Group A-2. g Buildings or building areas that are exempt from the thermal envelope requirements in accordance with Sections C402.1.1 and C402.1.2, do not qualify for this package. h Additional energy efficiency credits, up to the maximum shown in Table C406.2(1), shall be calculated according to Section C406.2.14. Table C406.2(2) Efficiency Measure Credits for use with Fossil Fuel Compliance Path Measure Title Applicable Section Prorating Flag Occupancy Group Group R-1 Group R-2 Group B Group E Group M All Other 1. Dwelling unit HVAC control C406.2.1 Heat NA 8 NA NA NA NA 2. Improved HVAC TSPR a C406.2.2.1 Heat NA 9 12 19 24 NA 3. Improve cooling and fan efficiency C406.2.2.2 Heat 12 8 14 8 10 10 4. Improve heating efficiency C406.2.2.3 Heat 2 3 3 11 18 8 5. Improved low-carbon district energy system (10% better) C406.2.2.4 3 3 4 12 19 9 6. Improved low-carbon district energy system (20% better) b C406.2.2.5 10 11 13 36 57 26 7. High performance DOAS C406.2.2.6 Heat 34 34 23 43 44 23/ (A) 40 c 8. Fault detection & diagnostics (FDD) C406.2.2.7 Heat 2 2 2 6 9 4 9. 10% reduced lighting power C406.2.3.1 Heat 7 4 18 16 20 15 10. 20% reduced lighting power d C406.2.3.2 Heat 13 8 36 32 40 29 11. Lamp efficacy improvement C406.2.3.3 Heat 5 6 NA NA NA NA 12. Residential lighting control C406.2.4.1 Heat NA 8 NA NA NA NA 13. Enhanced lighting control C406.2.4.2 Heat 1 1 6 6 11 6 14. Renewable energy C406.2.5 7 12 13 13 10 11 15. Shower drain heat recovery C406.2.6.1 SWH 10 33 NA 3 NA NA 16. Service water heat recovery C406.2.6.2 SWH 35 111 13 14 (Grocery) 41 e NA 17. Heat pump water heating C406.2.6.3 SWH 135 163 17 33 (Grocery) 95 e (A-2) 95 f 18. High efficiency service water heating, gas-fired C406.2.6.4 SWH 59 65 6 11 18 32 19. Heat trace system C406.2.7.1 SWH 6 13 4 1 NA 6 20. Point of use water heater C406.2.7.2 SWH NA NA 19 5 NA NA 21. Service hot water distribution right sizing C406.2.8 13 42 NA NA NA NA 22. High performance service hot water temperature maintenance system C406.2.9 6 13 4 1 NA 6 23. High efficiency service hot water circulation system C406.2.10 3 6 2 1 NA 4 24. Low flow residential showerheads C406.2.11 SWH 3 3 NA NA NA NA 25. Enhanced envelope performance g C406.2.12 Heat 24 20 13 5 19 14 26. Base reduced air leakage g C406.2.13.1 29 24 6 3 9 11 27. Enhanced reduced air leakage g C406.2.13.2 Heat 53 44 11 5 16 20 28. Enhanced commercial kitchen equipment C406.2.14 Heat 30 h 18 h 18 h 30 h 30 h 31 h 29. Enhanced residential kitchen equipment C406.2.15 Heat 12 19 NA NA NA NA 30. Enhanced residential laundry equipment C406.2.16 Heat NA 6 NA NA NA NA 31. Heat pump clothes dryers C406.2.17 Heat 6 6 NA NA NA NA 32. Efficient elevator equipment C406.2.18 Heat 3 5 5 5 4 4 Measure Title Applicable Section Prorating Flag Occupancy Group Group R-1 Group R-2 Group B Group E Group M All Other 1. Dwelling unit HVAC control C406.2.1 Heat NA 8 NA NA NA NA 2. Improved HVAC TSPR a C406.2.2.1 Heat NA 9 12 19 24 NA 3. Improve cooling and fan efficiency C406.2.2.2 Heat 12 8 14 8 10 10 4. Improve heating efficiency C406.2.2.3 Heat 2 3 3 11 18 8 5. Improved low-carbon district energy system (10% better) C406.2.2.4 3 3 4 12 19 9 6. Improved low-carbon district energy system (20% better) b C406.2.2.5 10 11 13 36 57 26 7. High performance DOAS C406.2.2.6 Heat 34 34 23 43 44 23/ (A) 40 c 8. Fault detection & diagnostics (FDD) C406.2.2.7 Heat 2 2 2 6 9 4 9. 10% reduced lighting power C406.2.3.1 Heat 7 4 18 16 20 15 10. 20% reduced lighting power d C406.2.3.2 Heat 13 8 36 32 40 29 11. Lamp efficacy improvement C406.2.3.3 Heat 5 6 NA NA NA NA 12. Residential lighting control C406.2.4.1 Heat NA 8 NA NA NA NA 13. Enhanced lighting control C406.2.4.2 Heat 1 1 6 6 11 6 14. Renewable energy C406.2.5 7 12 13 13 10 11 15. Shower drain heat recovery C406.2.6.1 SWH 10 33 NA 3 NA NA 16. Service water heat recovery C406.2.6.2 SWH 35 111 13 14 (Grocery) 41 e NA 17. Heat pump water heating C406.2.6.3 SWH 135 163 17 33 (Grocery) 95 e (A-2) 95 f 18. High efficiency service water heating, gas-fired C406.2.6.4 SWH 59 65 6 11 18 32 19. Heat trace system C406.2.7.1 SWH 6 13 4 1 NA 6 20. Point of use water heater C406.2.7.2 SWH NA NA 19 5 NA NA 21. Service hot water distribution right sizing C406.2.8 13 42 NA NA NA NA 22. High performance service hot water temperature maintenance system C406.2.9 6 13 4 1 NA 6 23. High efficiency service hot water circulation system C406.2.10 3 6 2 1 NA 4 24. Low flow residential showerheads C406.2.11 SWH 3 3 NA NA NA NA 25. Enhanced envelope performance g C406.2.12 Heat 24 20 13 5 19 14 26. Base reduced air leakage g C406.2.13.1 29 24 6 3 9 11 27. Enhanced reduced air leakage g C406.2.13.2 Heat 53 44 11 5 16 20 28. Enhanced commercial kitchen equipment C406.2.14 Heat 30 h 18 h 18 h 30 h 30 h 31 h 29. Enhanced residential kitchen equipment C406.2.15 Heat 12 19 NA NA NA NA 30. Enhanced residential laundry equipment C406.2.16 Heat NA 6 NA NA NA NA 31. Heat pump clothes dryers C406.2.17 Heat 6 6 NA NA NA NA 32. Efficient elevator equipment C406.2.18 Heat 3 5 5 5 4 4 a Projects using Item 2 shall not use Items 3, 4, or 7. b Projects using C406.2.2.5 shall not use C406.2.2.4. c For C406.2.2.6, occupancy Group A achieves 40 credits while other occupancy groups within the "all other" category achieve 21 credits. d Projects using C406.2.3.2 shall not use C406.2.3.1. e Service water heat recovery and heat pump water heating are available in Group M only for grocery stores larger than 10,000 ft 2 . Large mixed retail with full grocery and butcher sections shall achieve half the credits. This credit is not available where refrigeration recovery to heat service hot water is used to meet the requirements of Section C403.9.2.3. f Heat pump water heating efficiency credits are available in the "all other" category only for Group A-2. g Buildings or building areas that are exempt from the thermal envelope requirements in accordance with Sections C402.1.1 and C402.1.2, do not qualify for this package. h Additional energy efficiency credits, up to the maximum shown in Table C406.2(2), shall be calculated according to Section C406.2.14.