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HomeMy WebLinkAbout20221005PAC to Staff Cost-effectiveness Results.pdfAPPENDIX Appendix A: Cost-effectiveness Results1 1 Cost-effectiveness results were generated by Guidehouse Consulting using the approved Cost-effectiveness methodologies. Memorandum 1375 Walnut Street Suite 100 | Boulder, CO 80302 303.728.2500 main To: Alesha Pino, PacifiCorp From: David Basak, Guidehouse Date: March 19, 2021 Re: Cost-Effectiveness for the Portfolio and Sector Level - Idaho Guidehouse estimated the cost-effectiveness for the overall energy efficiency portfolio and component sectors, based on 2020 costs and savings estimates provided by PacifiCorp. This memo provides the cost-effectiveness results for the overall energy efficiency portfolio and the two sector components. The portfolio passes the cost-effectiveness for the UCT and PCT tests. The memo consists of the following tables. Table 1 - Utility Inputs Table 2 – Portfolio Level Costs 2020 Table 3 – Benefit/Cost Ratios by Portfolio Type Table 4 – 2020 Total Portfolio (Including NEBs) Cost-Effectiveness Results Table 5 - 2020 Total Portfolio Cost-Effectiveness Results Table 6 – 2020 C&I Energy Efficiency Portfolio Cost-Effectiveness Results Table 7 – 2020 Residential Energy Efficiency Portfolio (Including NEBs) Cost-Effectiveness Results Table 8 – 2020 Residential Energy Efficiency Portfolio Cost-Effectiveness Results Table 9 – Low Income Non-Energy Benefits (2020) Table 10 - Home Energy Savings Non-Energy Benefits by Measure PY2020 Idaho Cost-Effectiveness Results – Portfolio March 19, 2021 Page 2 of 5 Table 1 - Utility Inputs Parameter Value Discount Rate 6.92% Residential Line Loss 9.06% Commercial Line Loss 8.59% Industrial Line Loss 6.69% Irrigation Line Loss 9.05% Residential Energy Rate ($/kWh)¹ $0.1013 Commercial Energy Rate ($/kWh)¹ $0.0872 Industrial Energy Rate ($/kWh)¹ $0.0636 Irrigation Energy Rate ($/kWh)¹ $0.0907 Inflation Rate 2.28% ¹ Future rates determined using a 2.28% annual escalator. Table 2 – Portfolio Level Costs 2020 Expense Cost Commercial & Industrial Evaluation Costs $117,274 Residential Evaluation Costs $103,165 Low Income Energy Conservation Education $9,000 Outreach & Communications $200,668 Potential Study $63,852 System Support $39,425 Total Costs $533,383 Table 3 – Benefit/Cost Ratios by Portfolio Type Measure Group PTRC TRC UCT RIM PCT Total Portfolio (Including NEBs) 0.89 0.82 1.25 0.38 2.45 Total Portfolio 0.80 0.73 1.25 0.38 2.33 C&I Programs 0.91 0.82 1.47 0.40 2.39 Residential Programs (Including NEBs) 0.98 0.93 0.85 0.31 2.67 Residential Programs 0.55 0.50 0.85 0.31 2.06 PY2020 Idaho Cost-Effectiveness Results – Portfolio March 19, 2021 Page 3 of 5 Table 4 – 2020 Total Portfolio (Including NEBs) Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + $0.0682 $9,398,544 $8,403,251 -$995,293 0.89 Total Resource Cost Test (TRC) No Adder $0.0682 $9,398,544 $7,720,701 -$1,677,843 0.82 Utility Cost Test (UCT) $0.0396 $5,454,714 $6,825,499 $1,370,784 1.25 Rate Impact Test (RIM) $17,912,584 $6,825,499 -$11,087,085 0.38 Participant Cost Test (PCT) $6,960,226 $17,031,212 $10,070,985 2.45 Lifecycle Revenue Impacts ($/kWh) $0.0000187299 Discounted Participant Payback (years) 2.74 Table 5 - 2020 Total Portfolio Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0682 $9,398,544 $7,508,049 -$1,890,496 0.80 Total Resource Cost Test (TRC) $0.0682 $9,398,544 $6,825,499 -$2,573,046 0.73 Utility Cost Test (UCT) $0.0396 $5,454,714 $6,825,499 $1,370,784 1.25 Rate Impact Test (RIM) $17,912,584 $6,825,499 -$11,087,085 0.38 Participant Cost Test (PCT) $6,960,226 $16,218,923 $9,258,697 2.33 Lifecycle Revenue Impacts ($/kWh) $0.0000139622 Discounted Participant Payback (years) 2.74 Table 6 – 2020 C&I Energy Efficiency Portfolio Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0592 $7,055,243 $6,395,639 -$659,604 0.91 No Adder $0.0592 $7,055,243 $5,814,217 -$1,241,025 0.82 Utility Cost Test (UCT) $0.0333 $3,961,802 $5,814,217 $1,852,415 1.47 Rate Impact Test (RIM) $14,393,906 $5,814,217 -$8,579,689 0.40 Participant Cost Test (PCT) $5,622,049 $13,458,221 $7,836,172 2.39 Lifecycle Revenue Impacts ($/kWh) $0.0000227737 Discounted Participant Payback (years) 3.43 PY2020 Idaho Cost-Effectiveness Results – Portfolio March 19, 2021 Page 4 of 5 Table 7 – 2020 Residential Energy Efficiency Portfolio (Including NEBs) Cost-Effectiveness Results Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + $0.1096 $2,039,357 $2,007,612 -$31,745 0.98 No Adder $0.1096 $2,039,357 $1,906,484 -$132,873 0.93 Utility Cost Test (UCT) $0.0639 $1,188,968 $1,011,282 -$177,686 0.85 Rate Impact Test (RIM) $3,214,733 $1,011,282 -$2,203,452 0.31 Participant Cost Test (PCT) $1,338,177 $3,572,990 $2,234,813 2.67 Lifecycle Revenue Impacts ($/kWh) $0.0000102387 Discounted Participant Payback (years) 1.50 Table 8 – 2020 Residential Energy Efficiency Portfolio Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.1096 $2,039,357 $1,112,410 -$926,947 0.55 $0.1096 $2,039,357 $1,011,282 -$1,028,076 0.50 Utility Cost Test (UCT) $0.0639 $1,188,968 $1,011,282 -$177,686 0.85 Rate Impact Test (RIM) $3,214,733 $1,011,282 -$2,203,452 0.31 Participant Cost Test (PCT) $1,338,177 $2,760,702 $1,422,524 2.06 Lifecycle Revenue Impacts ($/kWh) $0.0000052797 Discounted Participant Payback (years) 1.50 The tables below summarize the non-energy benefits for the Low Income and Home Energy Savings programs. Table 9 – Low Income Non-Energy Benefits (2020) Non-Energy Benefit Program Perspective Adjusted Total NEBs $82,913.83 PTRC, TRC PY2020 Idaho Cost-Effectiveness Results – Portfolio March 19, 2021 Page 5 of 5 Table 10 - Home Energy Savings Non-Energy Benefits by Measure Measure Name Energy Benefits Water Energy Benefits Other Quantity Measure Life Total NEBs ($/yr) Discount Rate Total Net Present Value Benefits Appliances $503 $0 61 14.0 $503 6.92% $4,727.81 Energy Kits - DHW $265 $0 1,132 10.8 $265 6.92% $2,099.04 Energy Kits - Lighting $0 $10 1,181 13.0 $10 6.92% $87.34 Lighting $0 $56,009 66,930 12.0 $56,009 6.92% $478,193.21 Water Heating $55,582 $0 6,278 10.1 $55,582 6.92% $422,761.39 Total NEBs $56,350 $56,018 75,582 11.1 $112,368 - $907,868.79 Memorandum 1375 Walnut Street Suite 100 | Boulder, CO 80302 303.728.2500 main To: Alesha Pino, PacifiCorp From: David Basak, Guidehouse Date: March 19, 2021 Re: Cost-Effectiveness for the Portfolio and Sector Level - Idaho Guidehouse estimated the cost-effectiveness for the overall energy efficiency portfolio and component sectors, based on 2020 costs and savings estimates provided by PacifiCorp. This memo provides the cost-effectiveness results for the overall energy efficiency portfolio and the two sector components. The portfolio passes the cost-effectiveness for the UCT and PCT tests. The memo consists of the following tables. Table 1 - Utility Inputs Table 2 – Portfolio Level Costs 2020 Table 3 – Benefit/Cost Ratios by Portfolio Type Table 4 – 2020 Total Portfolio (Including NEBs) Cost-Effectiveness Results Table 5 - 2020 Total Portfolio Cost-Effectiveness Results Table 6 – 2020 C&I Energy Efficiency Portfolio Cost-Effectiveness Results Table 7 – 2020 Residential Energy Efficiency Portfolio (Including NEBs) Cost-Effectiveness Results Table 8 – 2020 Residential Energy Efficiency Portfolio Cost-Effectiveness Results Table 9 - Home Energy Savings Non-Energy Benefits by Measure PY2020 Idaho Cost-Effectiveness Results – Portfolio March 19, 2021 Page 2 of 4 Table 1 - Utility Inputs Parameter Value Discount Rate 6.92% Residential Line Loss 9.06% Commercial Line Loss 8.59% Industrial Line Loss 6.69% Irrigation Line Loss 9.05% Residential Energy Rate ($/kWh)¹ $0.1013 Commercial Energy Rate ($/kWh)¹ $0.0872 Industrial Energy Rate ($/kWh)¹ $0.0636 Irrigation Energy Rate ($/kWh)¹ $0.0907 Inflation Rate 2.28% ¹ Future rates determined using a 2.28% annual escalator. Table 2 – Portfolio Level Costs 2020 Expense Cost Commercial & Industrial Evaluation Costs $117,274 Residential Evaluation Costs $103,165 Outreach & Communications $200,668 Potential Study $63,852 System Support $39,425 Total Costs $524,383 Table 3 – Benefit/Cost Ratios by Portfolio Type Measure Group PTRC TRC UCT RIM PCT Total Portfolio (Including NEBs) 0.90 0.82 1.28 0.38 2.42 Total Portfolio 0.81 0.74 1.28 0.38 2.31 C&I Programs 0.91 0.82 1.47 0.40 2.39 Residential Programs (Including NEBs) 1.01 0.96 0.96 0.33 2.55 Residential Programs 0.58 0.52 0.96 0.33 1.94 *Residential sector and portfolio level results do not include the Low Income Program PY2020 Idaho Cost-Effectiveness Results – Portfolio March 19, 2021 Page 3 of 4 Table 4 – 2020 Total Portfolio (Including NEBs) Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + $0.0673 $9,243,659 $8,295,864 -$947,795 0.90 No Adder $0.0673 $9,243,659 $7,615,539 -$1,628,120 0.82 Utility Cost Test (UCT) $0.0386 $5,299,829 $6,803,251 $1,503,421 1.28 Rate Impact Test (RIM) $17,724,449 $6,803,251 -$10,921,198 0.38 Participant Cost Test (PCT) $6,960,226 $16,866,460 $9,906,234 2.42 Lifecycle Revenue Impacts ($/kWh) $0.0000201191 Discounted Participant Payback (years) 2.82 *Portfolio level results do not include the Low Income Program Table 5 - 2020 Total Portfolio Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0673 $9,243,659 $7,483,576 -$1,760,084 0.81 Total Resource Cost Test (TRC) $0.0673 $9,243,659 $6,803,251 -$2,440,409 0.74 Utility Cost Test (UCT) $0.0386 $5,299,829 $6,803,251 $1,503,421 1.28 Rate Impact Test (RIM) $17,724,449 $6,803,251 -$10,921,198 0.38 Participant Cost Test (PCT) $6,960,226 $16,054,172 $9,093,946 2.31 Lifecycle Revenue Impacts ($/kWh) $0.0000146601 Discounted Participant Payback (years) 2.82 *Portfolio level results do not include the Low Income Program Table 6 – 2020 C&I Energy Efficiency Portfolio Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0592 $7,055,243 $6,395,639 -$659,604 0.91 No Adder $0.0592 $7,055,243 $5,814,217 -$1,241,025 0.82 Utility Cost Test (UCT) $0.0333 $3,961,802 $5,814,217 $1,852,415 1.47 Rate Impact Test (RIM) $14,393,906 $5,814,217 -$8,579,689 0.40 Participant Cost Test (PCT) $5,622,049 $13,458,221 $7,836,172 2.39 Lifecycle Revenue Impacts ($/kWh) $0.0000227737 Discounted Participant Payback (years) 3.43 PY2020 Idaho Cost-Effectiveness Results – Portfolio March 19, 2021 Page 4 of 4 Table 7 – 2020 Residential Energy Efficiency Portfolio (Including NEBs) Cost-Effectiveness Results Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + $0.1029 $1,884,472 $1,900,225 $15,753 1.01 No Adder $0.1029 $1,884,472 $1,801,322 -$83,150 0.96 Utility Cost Test (UCT) $0.0565 $1,034,083 $989,033 -$45,050 0.96 Rate Impact Test (RIM) $3,026,598 $989,033 -$2,037,565 0.33 Participant Cost Test (PCT) $1,338,177 $3,408,239 $2,070,062 2.55 Lifecycle Revenue Impacts ($/kWh) $0.0000122678 Discounted Participant Payback (years) 1.73 *Residential sector level results do not include the Low Income Program Table 8 – 2020 Residential Energy Efficiency Portfolio Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.1029 $1,884,472 $1,087,937 -$796,535 0.58 $0.1029 $1,884,472 $989,033 -$895,439 0.52 Utility Cost Test (UCT) $0.0565 $1,034,083 $989,033 -$45,050 0.96 Rate Impact Test (RIM) $3,026,598 $989,033 -$2,037,565 0.33 Participant Cost Test (PCT) $1,338,177 $2,595,950 $1,257,773 1.94 Lifecycle Revenue Impacts ($/kWh) $0.0000055335 Discounted Participant Payback (years) 1.73 *Residential sector level results do not include the Low Income Program The tables below summarize the non-energy benefits for the Home Energy Savings programs. Table 9 - Home Energy Savings Non-Energy Benefits by Measure Measure Name Benefits Water Benefits Other Quantity Measure Life Total NEBs ($/yr) Discount Rate Present Value Appliances $503 $0 61 14.0 $503 6.92% $4,727.81 Energy Kits - DHW $265 $0 1,132 10.8 $265 6.92% $2,099.04 Energy Kits - Lighting $0 $10 1,181 13.0 $10 6.92% $87.34 Lighting $0 $56,009 66,930 12.0 $56,009 6.92% $478,193.21 Water Heating $55,582 $0 6,278 10.1 $55,582 6.92% $422,761.39 Total NEBs $56,350 $56,018 75,582 11.1 $112,368 - $907,868.79 Memorandum 1375 Walnut Street Suite 100 | Boulder, CO 80302 303.728.2500 main To: Alesha Pino, PacifiCorp From: David Basak, Guidehouse Date: March 19, 2021 Re: Cost-Effectiveness Results for the Home Energy Savings Program - Idaho Guidehouse estimated the cost-effectiveness results for the Idaho Home Energy Savings Program, based on 2020 costs and savings estimates provided by PacifiCorp. This memo provides the cost- effectiveness results for the overall program and for the 9 measure categories. Cost-effectiveness was tested using the 2019 IRP decrement for all measure categories. The program passes the cost-effectiveness for the UCT test. The memo consists of the following tables. Table 1 - Home Energy Savings Inputs Table 2 – Home Energy Savings Annual Program Costs Table 3 – Home Energy Savings – Savings by Measure Category Table 4 - Benefit/Cost Ratios by Measure Category Table 5 – Home Energy Savings Program Level (without NEBs) Cost-Effectiveness Results Table 6 - Home Energy Savings Appliances Cost-Effectiveness Results Table 7 - Home Energy Savings Building Shell Cost-Effectiveness Results Table 8 - Home Energy Savings Electronics Cost-Effectiveness Results Table 9 - Home Energy Savings Energy Kits – DHW Cost-Effectiveness Results Table 10 - Home Energy Savings Energy Kits – Lighting Cost-Effectiveness Results Table 11 - Home Energy Savings HVAC Cost-Effectiveness Results Table 12 - Home Energy Savings Lighting Cost-Effectiveness Results Table 13 - Home Energy Savings Water Heating Cost-Effectiveness Results Table 14 - Home Energy Savings Whole Home Cost-Effectiveness Results Table 15 - Home Energy Savings Non-Energy Benefits by Measure Table 16 - Home Energy Savings Program (with NEBs) Cost-Effectiveness Results Table 17 - Home Energy Savings Appliances (with NEBs) Cost-Effectiveness Results Table 18 - Home Energy Savings Energy Kit – DHW (with NEBs) Cost-Effectiveness Results Table 19 - Home Energy Savings Energy Kit – Lighting (with NEBs) Cost-Effectiveness Results Table 20 - Home Energy Savings Lighting (with NEBs) Cost-Effectiveness Results Table 21 - Home Energy Savings Water Heating (with NEBs) Cost-Effectiveness Results PY2020 Idaho Cost-Effectiveness Results – Home Energy Savings March 19, 2021 Page 2 of 9 Table 1 - Home Energy Savings Inputs Parameter Value Discount Rate 6.92% Residential Line Loss 9.06% Residential Energy Rate ($/kWh) ¹ $0.1013 Inflation Rate 2.28% ¹ Future rates determined using a 2.28% annual escalator. Table 2 – Home Energy Savings Annual Program Costs Measure Group Engineering Costs Utility Admin Program Delivery Program Dev. Incentives Total Utility Costs Gross Customer Costs Appliances $0 $15 $704 $21 $1,200 $1,940 $2,999 Building Shell $0 $36 $1,737 $52 $5,820 $7,645 $9,454 Electronics $0 $3,820 $184,072 $5,528 $122,905 $316,325 $503,452 Energy Kits - DHW $0 $31 $964 $44 $126 $1,165 $126 Energy Kits - Lighting $0 $1 $42 $2 $41 $86 $41 HVAC $0 $907 $83,340 $1,313 $45,497 $131,058 $149,997 Lighting $0 $9,050 $78,479 $13,097 $82,439 $183,065 $626,977 Water Heating $0 $2,225 $107,207 $3,220 $45,102 $157,753 $7,907 Whole Home $0 $281 $13,543 $407 $23,500 $37,731 $37,225 Total $0 $16,366 $470,089 $23,684 $326,630 $836,768 $1,338,177 Table 3 – Home Energy Savings – Savings by Measure Category Measure Group Gross kWh Savings Realization Rate Gross kWh Net to Net kWh Savings Measure Life Appliances 2,495 100% 2,495 100% 2,495 14 Building Shell 6,156 100% 6,156 100% 6,156 45 Electronics 652,260 100% 652,260 100% 652,260 5 Energy Kits - DHW 5,240 87% 4,559 97% 4,422 11 Energy Kits - Lighting 229 87% 200 97% 194 13 HVAC 154,956 100% 154,956 87% 135,212 9 Lighting 1,545,405 66% 1,019,967 78% 795,574 12 Water Heating 379,889 100% 379,889 90% 343,549 10 Whole Home 47,991 100% 47,991 91% 43,672 45 Total 2,794,621 81% 2,268,472 87% 1,983,534 11 PY2020 Idaho Cost-Effectiveness Results – Home Energy Savings March 19, 2021 Page 3 of 9 Table 4 - Benefit/Cost Ratios by Measure Category Measure Group PTRC TRC UCT RIM PCT Appliances with NEBs 1.62 1.58 0.62 0.25 2.90 Appliances 0.35 0.32 0.62 0.25 1.32 Building Shell 0.86 0.78 1.15 0.43 1.96 Electronics 0.20 0.18 0.39 0.20 0.86 Energy Kits with NEBs - DHW 3.38 3.23 1.47 0.33 50.38 Energy Kits - DHW 1.62 1.48 1.47 0.33 34.26 Energy Kits with NEBs - Lighting 2.18 2.07 1.06 0.31 8.23 Energy Kits - Lighting 1.18 1.07 1.06 0.31 6.14 HVAC 0.34 0.31 0.51 0.28 1.12 Lighting with NEBs 1.28 1.22 1.90 0.36 2.33 Lighting 0.65 0.59 1.90 0.36 1.73 Water Heating with NEBs 4.72 4.62 0.77 0.27 101.50 Water Heating 1.11 1.01 0.77 0.27 46.81 Whole Home 1.43 1.30 1.65 0.49 3.29 Total with NEBs 0.96 0.92 0.88 0.30 2.26 Total 0.48 0.43 0.88 0.30 1.65 Table 5 – Home Energy Savings Program Level (without NEBs) Cost-Effectiveness Results Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.1146 $1,687,157 $805,941 -$881,216 0.48 Total Resource Cost Test (TRC) $0.1146 $1,687,157 $732,674 -$954,484 0.43 Utility Cost Test (UCT) $0.0568 $836,768 $732,674 -$104,095 0.88 Rate Impact Test (RIM) $2,440,702 $732,674 -$1,708,028 0.30 Participant Cost Test (PCT) $1,338,177 $2,207,369 $869,192 1.65 Lifecycle Revenue Impacts ($/kWh) $0.0000046670 Discounted Participant Payback (years) 5.42 PY2020 Idaho Cost-Effectiveness Results – Home Energy Savings March 19, 2021 Page 4 of 9 Table 6 through Table 14 provides cost-effectiveness results without NEBs for all 9 measures. Table 6 - Home Energy Savings Appliances Cost-Effectiveness Results (Load Shape – Residential_ERWH_7P) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.1479 $3,739 $1,313 -$2,426 0.35 $0.1479 $3,739 $1,194 -$2,545 0.32 Utility Cost Test (UCT) $0.0767 $1,940 $1,194 -$746 0.62 Discounted Participant Payback (years) 8.11 Table 7 - Home Energy Savings Building Shell Cost-Effectiveness Results (Load Shape – ID_Single_Family_Cooling) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0977 $11,280 $9,669 -$1,611 0.86 $0.0977 $11,280 $8,790 -$2,490 0.78 Utility Cost Test (UCT) $0.0662 $7,645 $8,790 $1,144 1.15 Rate Impact Test (RIM) $20,347 $8,790 -$11,557 0.43 Participant Cost Test (PCT) $9,454 $18,521 $9,067 1.96 Lifecycle Revenue Impacts ($/kWh) $0.0000001156 Discounted Participant Payback (years) 6.41 Table 8 - Home Energy Savings Electronics Cost-Effectiveness Results (Load Shape – ID_Single_Family_Plug) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.2443 $696,871 $136,472 -$560,399 0.20 Total Resource Cost Test (TRC) $0.2443 $696,871 $124,066 -$572,806 0.18 Utility Cost Test (UCT) $0.1109 $316,325 $124,066 -$192,259 0.39 Discounted Participant Payback (years) 6.33 PY2020 Idaho Cost-Effectiveness Results – Home Energy Savings March 19, 2021 Page 5 of 9 Table 9 - Home Energy Savings Energy Kits – DHW Cost-Effectiveness Results (Load Shape – Residential_ERWH_7P) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + $0.0310 $1,161 $1,885 $723 1.62 Total Resource Cost Test (TRC) $0.0310 $1,161 $1,713 $552 1.48 Utility Cost Test (UCT) $0.0311 $1,165 $1,713 $548 1.47 Discounted Participant Payback (years) n/a Table 10 - Home Energy Savings Energy Kits – Lighting Cost-Effectiveness Results (Load Shape – Residential_Lighting_7P) Cost-Effectiveness Test Levelized $/kWh Costs Benefits Net Benefits Benefit/Cost Ratio Total Resource Cost Test (PTRC) + Conservation Adder $0.0457 $85 $100 $15 1.18 Total Resource Cost Test (TRC) No Adder $0.0457 $85 $91 $6 1.07 Utility Cost Test (UCT) $0.0463 $86 $91 $5 1.06 Discounted Participant Payback (years) n/a Table 11 - Home Energy Savings HVAC Cost-Effectiveness Results (Load Shape – ID_Single_Family_Cooling) Cost-Effectiveness Test Levelized $/kWh Costs Benefits Net Benefits Benefit/Cost Ratio Total Resource Cost Test (PTRC) + Conservation Adder $0.2216 $216,445 $72,980 -$143,465 0.34 No Adder $0.2216 $216,445 $66,346 -$150,100 0.31 Utility Cost Test (UCT) $0.1342 $131,058 $66,346 -$64,712 0.51 Discounted Participant Payback (years) 8.83 PY2020 Idaho Cost-Effectiveness Results – Home Energy Savings March 19, 2021 Page 6 of 9 Table 12 - Home Energy Savings Lighting Cost-Effectiveness Results (Load Shape – Residential_Lighting_7P) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0819 $589,668 $381,846 -$207,822 0.65 $0.0819 $589,668 $347,133 -$242,535 0.59 Utility Cost Test (UCT) $0.0254 $183,065 $347,133 $164,067 1.90 Rate Impact Test (RIM) $967,160 $347,133 -$620,027 0.36 Participant Cost Test (PCT) $626,977 $1,087,689 $460,712 1.73 Lifecycle Revenue Impacts ($/kWh) $0.0000230170 Discounted Participant Payback (years) 7.62 Table 13 - Home Energy Savings Water Heating Cost-Effectiveness Results (Load Shape – Residential_HPWH_7P) Cost-Effectiveness Test Levelized $/kWh Costs Benefits Net Benefits Benefit/Cost Ratio Total Resource Cost Test (PTRC) + Conservation Adder $0.0444 $119,802 $133,085 $13,282 1.11 $0.0444 $119,802 $120,986 $1,184 1.01 Utility Cost Test (UCT) $0.0584 $157,753 $120,986 -$36,767 0.77 Lifecycle Revenue Impacts ($/kWh) $0.0000147262 Discounted Participant Payback (years) n/a Table 14 - Home Energy Savings Whole Home Cost-Effectiveness Results (Load Shape – ID_Single_Family_Cooling) Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.0587 $48,106 $68,592 $20,485 1.43 No Adder $0.0587 $48,106 $62,356 $14,250 1.30 Utility Cost Test (UCT) $0.0461 $37,731 $62,356 $24,625 1.65 Rate Impact Test (RIM) $127,837 $62,356 -$65,481 0.49 Participant Cost Test (PCT) $37,225 $122,517 $85,292 3.29 Lifecycle Revenue Impacts ($/kWh) $0.0000006551 Discounted Participant Payback (years) 3.19 PY2020 Idaho Cost-Effectiveness Results – Home Energy Savings March 19, 2021 Page 7 of 9 In addition to the energy benefits reported above, appliances, energy savings kits and lighting in the Home Energy Savings program offer significant non-energy benefits (NEBs). Table 15 through Table 21 detail the non-energy benefits and cost-effectiveness results. Table 15 - Home Energy Savings Non-Energy Benefits by Measure Measure Name Non-Energy Benefits Water ($/yr) Non-Energy Benefits Other ($/yr) Quantity Measure Life Total NEBs ($/yr) Discount Rate Total Net Present Value Appliances $503 $0 61 14.0 $503 6.92% $4,727.81 Energy Kits - DHW $265 $0 1,132 10.8 $265 6.92% $2,099.04 Energy Kits - Lighting $0 $10 1,181 13.0 $10 6.92% $87.34 Lighting $0 $56,009 66,930 12.0 $56,009 6.92% $478,193.21 Water Heating $55,582 $0 6,278 10.1 $55,582 6.92% $422,761.39 The following tables provide the cost-effectiveness results after adding in the non-energy benefits detailed above beginning with the overall program results. Table 16 - Home Energy Savings Program (with NEBs) Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.1146 $1,687,157 $1,618,230 -$68,928 0.96 $0.1146 $1,687,157 $1,544,962 -$142,195 0.92 Utility Cost Test (UCT) $0.0568 $836,768 $732,674 -$104,095 0.88 Rate Impact Test (RIM) $2,440,702 $732,674 -$1,708,028 0.30 Participant Cost Test (PCT) $1,338,177 $3,019,657 $1,681,480 2.26 Lifecycle Revenue Impacts ($/kWh) $0.0000104244 Discounted Participant Payback (years) 5.42 Table 17 - Home Energy Savings Appliances (with NEBs) Cost-Effectiveness Results (Load Shape – Residential_ERWH_7P) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.1479 $3,739 $6,041 $2,302 1.62 $0.1479 $3,739 $5,922 $2,183 1.58 Utility Cost Test (UCT) $0.0767 $1,940 $1,194 -$746 0.62 Participant Cost Test (PCT) $2,999 $8,684 $5,685 2.90 Lifecycle Revenue Impacts ($/kWh) $0.0000001115 Discounted Participant Payback (years) 8.11 PY2020 Idaho Cost-Effectiveness Results – Home Energy Savings March 19, 2021 Page 8 of 9 Table 18 - Home Energy Savings Energy Kit – DHW (with NEBs) Cost-Effectiveness Results (Load Shape – Residential_ERWH_7P) Cost-Effectiveness Test Levelized $/kWh Costs Benefits Net Benefits Benefit/Cost Ratio Total Resource Cost Test (PTRC) + $0.0310 $1,161 $3,921 $2,760 3.38 $0.0310 $1,161 $3,750 $2,588 3.23 Utility Cost Test (UCT) $0.0311 $1,165 $1,713 $548 1.47 Rate Impact Test (RIM) $5,242 $1,713 -$3,529 0.33 Participant Cost Test (PCT) $126 $6,365 $6,239 50.38 Lifecycle Revenue Impacts ($/kWh) $0.0000001429 Discounted Participant Payback (years) n/a Table 19 - Home Energy Savings Energy Kit – Lighting (with NEBs) Cost-Effectiveness Results (Load Shape – Residential_Lighting_7P) Cost-Effectiveness Test Levelized $/kWh Costs Benefits Net Benefits Benefit/Cost Ratio Total Resource Cost Test (PTRC) + Conservation Adder $0.0457 $85 $185 $100 2.18 Total Resource Cost Test (TRC) $0.0457 $85 $176 $91 2.07 Utility Cost Test (UCT) $0.0463 $86 $91 $5 1.06 Table 20 - Home Energy Savings Lighting (with NEBs) Cost-Effectiveness Results (Load Shape – Residential_Lighting_7P) Cost-Effectiveness Test Levelized $/kWh Costs Benefits Net Benefits Benefit/Cost Ratio Total Resource Cost Test (PTRC) + $0.0819 $589,668 $754,836 $165,169 1.28 $0.0819 $589,668 $720,123 $130,456 1.22 Utility Cost Test (UCT) $0.0254 $183,065 $347,133 $164,067 1.90 Rate Impact Test (RIM) $967,160 $347,133 -$620,027 0.36 Participant Cost Test (PCT) $626,977 $1,460,679 $833,703 2.33 Lifecycle Revenue Impacts ($/kWh) $0.0000230170 Discounted Participant Payback (years) 7.62 PY2020 Idaho Cost-Effectiveness Results – Home Energy Savings March 19, 2021 Page 9 of 9 Table 21 - Home Energy Savings Water Heating (with NEBs) Cost-Effectiveness Results (Load Shape – Residential_ERWH_7P) Cost-Effectiveness Test Levelized $/kWh Costs Benefits Net Benefits Benefit/Cost Ratio Total Resource Cost Test (PTRC) + Conservation Adder $0.0444 $119,802 $565,534 $445,732 4.72 $0.0444 $119,802 $553,435 $433,633 4.62 Utility Cost Test (UCT) $0.0584 $157,753 $120,986 -$36,767 0.77 Rate Impact Test (RIM) $451,655 $120,986 -$330,669 0.27 Participant Cost Test (PCT) $7,907 $802,541 $794,634 101.50 Discounted Participant Payback (years) n/a Memorandum 1375 Walnut Street Suite 100 | Boulder, CO 80302 303.728.2500 main To: Alesha Pino, PacifiCorp From: David Basak, Guidehouse Date: March 19, 2021 Re: Cost-Effectiveness Results for the Home Energy Reporting Program - Idaho Guidehouse estimated the cost-effectiveness results for the Idaho Home Energy Reporting Program, based on 2020 costs and savings estimates provided by PacifiCorp. This memo provides the cost- effectiveness results for the overall program. Cost-effectiveness was tested using the 2019 IRP decrement. The program passes all cost- effectiveness tests. Table 1 - Home Energy Reporting Inputs Table 2 – Home Energy Reporting Annual Program Costs Table 3 – Home Energy Reporting Savings by Measure Category Table 4 - Home Energy Reporting Program Level Cost-Effectiveness Results PY2020 Idaho Cost-Effectiveness Results – Home Energy Reporting March 19, 2021 Page 2 of 2 Table 1 - Home Energy Reporting Inputs Parameter Value Discount Rate 6.92% Residential Line Loss 9.06% Residential Energy Rate ($/kWh) ¹ $0.1013 Inflation Rate 2.28% ¹ Future rates determined using a 2.28% annual escalator. Table 2 – Home Energy Reporting Annual Program Costs Measure Group Engineering Costs Utility Admin Program Delivery Program Development Incentives Utility Customer Home Energy Reports $0 $7,951 $83,256 $2,943 $0 $94,150 $0 Total $0 $7,951 $83,256 $2,943 $0 $94,150 $0 Table 3 – Home Energy Reporting Savings by Measure Category Measure Group Gross kWh Savings Realization Rate Gross kWh Savings Net to Ratio Net kWh Savings Measure Life Home Energy Reports 3,947,830 95% 3,750,439 100% 3,750,439 1 Total 3,947,830 95% 3,750,439 100% 3,750,439 1 Table 4 - Home Energy Reporting Program Level Cost-Effectiveness Results (Load Shape – ID_Single_Family_Cooling) Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.0263 $94,150 $281,996 $187,845 3.00 Total Resource Cost Test (TRC) No Adder $0.0263 $94,150 $256,360 $162,209 2.72 Utility Cost Test (UCT) $0.0263 $94,150 $256,360 $162,209 2.72 Rate Impact Test (RIM) $482,732 $256,360 -$226,372 0.53 Participant Cost Test (PCT) $0 $388,582 $388,582 n/a Lifecycle Revenue Impacts ($/kWh) $0.0001009788 Discounted Participant Payback (years) n/a Memorandum 1375 Walnut Street Suite 100 | Boulder, CO 80302 303.728.2500 main To: Alesha Pino, PacifiCorp From: David Basak, Guidehouse Date: March 19, 2021 Re: Cost-Effectiveness Results for the Low-Income Weatherization Program - Idaho Guidehouse estimated the cost-effectiveness results for the Idaho Low Income Weatherization Program, based on 2020 costs and savings estimates provided by PacifiCorp. This memo provides the cost-effectiveness results for the overall program. Cost-effectiveness was tested using the 2019 IRP decrement. The program does not pass any of the cost-effectiveness tests. Table 1 - Low Income Weatherization Inputs Table 2 - Low Income Weatherization Annual Program Costs Table 3 - Low Income Weatherization Savings by Measure Category Table 4 - Benefit/Cost Ratios by Measure Category Table 5 - Low Income Weatherization Program Level (without NEBs) Cost-Effectiveness Table 6 - Low Income Weatherization Non-Energy Benefits Table 7 - Low Income Weatherization Program (with NEBs) Level Cost-Effectiveness Results PY2020 Idaho Cost-Effectiveness Results – Low Income Weatherization March 19, 2021 Page 2 of 3 Table 1 - Low Income Weatherization Inputs Parameter Value Discount Rate 6.92% Residential Line Loss 9.06% Residential Energy Rate ($/kWh)¹ $0.1013 Inflation Rate 2.28% ¹ Future rates determined using a 2.28% annual escalator. Table 2 - Low Income Weatherization Annual Program Costs Measure Group Engineering Costs Utility Admin Program Delivery Program Development Incentives Utility Customer Low Income Weatherization $0 $6,762 $6,550 $1,072 $131,501 $145,885 $0 Total $0 $6,762 $6,550 $1,072 $131,501 $145,885 $0 Table 3 - Low Income Weatherization Savings by Measure Category Measure Group Gross kWh Realization Rate Gross kWh Net to Net kWh Measure Life Low Income Weatherization 37,245 60% 22,347 100% 22,347 22 Total 37,245 60% 22,347 100% 22,347 22 Table 4 - Benefit/Cost Ratios by Measure Category Measure Group PTRC TRC UCT RIM PCT Low Income Weatherization with NEBs 0.74 0.72 0.15 0.12 n/a Low Income Weatherization 0.17 0.15 0.15 0.12 n/a Table 5 - Low Income Weatherization Program Level (without NEBs) Cost-Effectiveness (Load Shape – ID_Single_Family_Cooling Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.4798 $145,885 $24,473 -$121,412 0.17 $0.4798 $145,885 $22,248 -$123,637 0.15 Utility Cost Test (UCT) $0.4798 $145,885 $22,248 -$123,637 0.15 Discounted Participant Payback (years) n/a PY2020 Idaho Cost-Effectiveness Results – Low Income Weatherization March 19, 2021 Page 3 of 3 In addition to the energy benefits reported above, the Low Income program offers significant non- energy benefits (NEBs). Table 6 details the non-energy benefits and Table 7 provides the cost- effectiveness results. Table 6 - Low Income Weatherization Non-Energy Benefits Non-Energy Benefit Program Perspective Adjusted Total NEBs $82,913.83 PTRC, TRC Table 7 - Low Income Weatherization Program (with NEBs) Level Cost-Effectiveness Results (Load Shape – ID_Single_Family_Cooling) Cost-Effectiveness Test Levelized $/kWh Costs Benefits Net Benefits Benefit/Cost Ratio Total Resource Cost Test (PTRC) + Conservation Adder $0.4798 $145,885 $107,387 -$38,498 0.74 No Adder $0.4798 $145,885 $105,162 -$40,723 0.72 $179,135 $22,248 -$156,887 0.12 Participant Cost Test (PCT) $0 $164,751 $164,751 n/a Discounted Participant Payback (years) n/a Memorandum 1375 Walnut Street Suite 100 | Boulder, CO 80302 303.728.2500 main To: Alesha Pino, PacifiCorp From: David Basak, Guidehouse Date: March 19, 2021 Re: Cost-Effectiveness Results for the Wattsmart Business Program - Idaho Guidehouse estimated the cost-effectiveness results for the Idaho Wattsmart Business Program, based on 2020 costs and savings estimates provided by PacifiCorp. This memo provides the cost- effectiveness results for the overall program and for the 15 measure categories. Cost-effectiveness was tested using the 2019 IRP decrement for all measure categories. The program passes the UCT and PCT cost-effectiveness test. The memo consists of the following tables. Table 1 - Utility Inputs Table 2 – Annual Wattsmart Business Program Costs by Measure Category Table 3 – Annual Wattsmart Business Program Savings by Measure Category Table 4 - Benefit/Cost Ratios by Measure Category Table 5 – Wattsmart Business Program Level Cost-Effectiveness Results Table 6 - Wattsmart Additional Measures Cost-Effectiveness Results Table 7 - Wattsmart Agriculture Cost-Effectiveness Results Table 8 - Wattsmart Building Shell Measures Cost-Effectiveness Results Table 9 - Wattsmart Business Compressed Air Cost-Effectiveness Results Table 10 - Wattsmart Business Direct Install Cost-Effectiveness Results Table 11 - Wattsmart Business Energy Management Cost-Effectiveness Results Table 12 - Wattsmart Business Farm & Dairy Cost-Effectiveness Results Table 13 - Wattsmart Business Food Service Equipment Cost-Effectiveness Results Table 14 - Wattsmart Business HVAC Cost-Effectiveness Results Table 15 - Wattsmart Business Irrigation Cost-Effectiveness Results Table 16 - Wattsmart Business Lighting Cost-Effectiveness Results Table 17 - Wattsmart Business Motors Cost-Effectiveness Results Table 18 - Wattsmart Business Refrigeration Cost-Effectiveness Results Table 19 - Wattsmart Business Vendor Promotion Cost-Effectiveness Results Table 20 - Wattsmart Business Energy Manager Co-Funding Cost-Effectiveness Results PY2020 Idaho Cost-Effectiveness Results – Wattsmart Business Program March 19, 2021 Page 2 of 9 Table 1 - Utility Inputs Parameter Value Discount Rate 6.92% Commercial Line Loss 8.59% Industrial Line Loss 6.69% Irrigation Line Loss 9.05% Commercial Energy Rate ($/kWh)¹ $0.0872 Industrial Energy Rate ($/kWh)¹ $0.0636 Irrigation Energy Rate ($/kWh)¹ $0.0907 Inflation Rate 2.28% ¹ Future rates determined using a 2.28% annual escalator. Table 2 – Annual Wattsmart Business Program Costs by Measure Category Measure Category Utility Admin Program Delivery Program Dev. Incentives Total Utility Gross Customer Additional Measures $1,122 $33,961 $1,615 $65,511 $102,208 $267,639 Agriculture $5,691 $189,372 $8,722 $236,178 $439,962 $763,223 Building Shell $86 $5,062 $123 $19,682 $24,954 $64,670 Compressed Air $449 $7,749 $708 $28,773 $37,679 $48,131 Direct Install $7,148 $98,183 $2,417 $200,748 $308,497 $66,916 Energy Management $3,691 $115,151 $5,311 $28,734 $152,887 $36,780 Farm & Dairy $866 $60,068 $1,279 $50,750 $112,962 $143,957 Food Service Equipment $277 $9,189 $398 $7,860 $17,725 $18,339 HVAC $968 $44,436 $1,414 $54,464 $101,282 $361,241 Irrigation $6,521 $246,284 $10,052 $293,993 $556,851 $1,259,709 Lighting $11,868 $631,675 $17,342 $497,239 $1,158,124 $1,958,657 Motors $6,863 $264,961 $12,018 $418,262 $702,104 $468,417 Refrigeration $800 $30,669 $1,415 $57,397 $90,281 $164,369 Vendor Promotion $0 $0 $0 $800 $800 $0 Energy Project Mngr. Co-Fund $246 $0 $0 $37,968 $38,214 $0 Total $46,595 $1,736,759 $62,815 $1,998,359 $3,844,528 $5,622,049 PY2020 Idaho Cost-Effectiveness Results – Wattsmart Business Program March 19, 2021 Page 3 of 9 Table 3 – Annual Wattsmart Business Program Savings by Measure Category Measure Category Gross kWh Realization Rate Gross kWh Net to Net kWh Savings Measure Life Additional Measures 436,738 85% 369,244 90% 332,319 15 Agriculture 2,359,197 85% 1,994,763 89% 1,780,388 11 Building Shell 33,356 84% 28,052 90% 25,247 16 Compressed Air 191,610 84% 161,144 90% 145,030 15 Direct Install 653,903 100% 653,903 100% 653,903 16 Energy Management 1,436,707 84% 1,208,271 90% 1,087,444 3 Farm & Dairy 345,970 84% 290,961 90% 261,865 10 Food Service Equipment 107,758 84% 90,624 90% 81,562 12 HVAC 382,615 84% 321,779 90% 289,601 15 Irrigation 2,719,064 84% 2,286,733 90% 2,058,060 9 Lighting 4,691,123 87% 4,063,639 92% 3,721,948 14 Motors 3,250,816 84% 2,733,936 90% 2,460,543 15 Refrigeration 382,647 99% 377,673 90% 339,905 15 Vendor Promotion 0 0% 0 0% 0 0 Energy Project Mngr. Co-Fund 0 0% 0 0% 0 0 Total 16,991,503 86% 14,580,722 91% 13,237,814 12 PY2020 Idaho Cost-Effectiveness Results – Wattsmart Business Program March 19, 2021 Page 4 of 9 Table 4 - Benefit/Cost Ratios by Measure Category Measure Category PTRC TRC UCT RIM PCT Additional Measures 0.69 0.63 1.71 0.40 1.62 Agriculture 1.02 0.93 1.87 0.44 2.43 Building Shell 0.27 0.24 0.62 0.30 0.76 Compressed Air 1.60 1.45 2.01 0.46 3.52 Direct Install 2.11 1.92 1.09 0.34 13.20 Energy Management 0.78 0.71 0.73 0.26 9.20 Farm & Dairy 0.64 0.58 0.99 0.37 1.81 Food Service Equipment 1.47 1.34 1.99 0.41 4.62 HVAC 0.47 0.43 1.57 0.41 1.03 Irrigation 0.63 0.58 1.44 0.40 1.51 Lighting 0.77 0.70 1.48 0.37 2.20 Motors 1.99 1.81 1.82 0.51 5.21 Refrigeration 1.07 0.97 1.94 0.52 2.02 Vendor Promotion n/a n/a n/a n/a n/a Energy Project Mngr. Co-Fund n/a n/a n/a n/a n/a Total 0.92 0.84 1.51 0.41 2.39 Table 5 – Wattsmart Business Program Level Cost-Effectiveness Results Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0582 $6,937,969 $6,395,639 -$542,330 0.92 Total Resource Cost Test (TRC) No Adder $0.0582 $6,937,969 $5,814,217 -$1,123,752 0.84 Utility Cost Test (UCT) $0.0323 $3,844,528 $5,814,217 $1,969,689 1.51 Rate Impact Test (RIM) $14,276,633 $5,814,217 -$8,462,415 0.41 Participant Cost Test (PCT) $5,622,049 $13,458,221 $7,836,172 2.39 Lifecycle Revenue Impacts ($/kWh) $0.0000224624 Discounted Participant Payback (years) 3.43 PY2020 Idaho Cost-Effectiveness Results – Wattsmart Business Program March 19, 2021 Page 5 of 9 Table 6 through Table 20 provide cost-effectiveness results for all 15 measures. Table 6 - Wattsmart Additional Measures Cost-Effectiveness Results (Load Shape – ID_Miscellaneous_Mfg_General) Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.0785 $277,573 $192,772 -$84,801 0.69 $0.0785 $277,573 $175,247 -$102,326 0.63 Utility Cost Test (UCT) $0.0289 $102,208 $175,247 $73,039 1.71 Discounted Participant Payback (years) 7.91 Table 7 - Wattsmart Agriculture Cost-Effectiveness Results (Load Shape – ID_Irrigation_General) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0592 $884,829 $903,272 $18,443 1.02 $0.0592 $884,829 $821,156 -$63,673 0.93 Utility Cost Test (UCT) $0.0294 $439,962 $821,156 $381,194 1.87 Discounted Participant Payback (years) 3.41 Table 8 - Wattsmart Building Shell Measures Cost-Effectiveness Results (Load Shape – ID_Large_Office_Space_Cool) Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.2261 $63,474 $17,019 -$46,455 0.27 $0.2261 $63,474 $15,472 -$48,003 0.24 Utility Cost Test (UCT) $0.0889 $24,954 $15,472 -$9,482 0.62 Discounted Participant Payback (years) n/a PY2020 Idaho Cost-Effectiveness Results – Wattsmart Business Program March 19, 2021 Page 6 of 9 Table 9 - Wattsmart Business Compressed Air Cost-Effectiveness Results (Load Shape – ID_Miscellaneous_Mfg_General) Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.0339 $52,224 $83,442 $31,219 1.60 Total Resource Cost Test (TRC) No Adder $0.0339 $52,224 $75,857 $23,633 1.45 Utility Cost Test (UCT) $0.0244 $37,679 $75,857 $38,177 2.01 Discounted Participant Payback (years) 1.75 Table 10 - Wattsmart Business Direct Install Cost-Effectiveness Results (Load Shape – ID_Miscellaneous_Lighting) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0240 $174,665 $368,767 $194,102 2.11 Total Resource Cost Test (TRC) No Adder $0.0240 $174,665 $335,243 $160,578 1.92 Utility Cost Test (UCT) $0.0424 $308,497 $335,243 $26,746 1.09 Discounted Participant Payback (years) n/a Table 11 - Wattsmart Business Energy Management Cost-Effectiveness Results (Load Shape – ID_Miscellaneous_Mfg_General) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0527 $157,254 $123,059 -$34,195 0.78 Total Resource Cost Test (TRC) No Adder $0.0527 $157,254 $111,872 -$45,383 0.71 Utility Cost Test (UCT) $0.0513 $152,887 $111,872 -$41,015 0.73 Participant Cost Test (PCT) $36,780 $338,198 $301,418 9.20 Lifecycle Revenue Impacts ($/kWh) $0.0000475987 Discounted Participant Payback (years) 0.08 PY2020 Idaho Cost-Effectiveness Results – Wattsmart Business Program March 19, 2021 Page 7 of 9 Table 12 - Wattsmart Business Farm & Dairy Cost-Effectiveness Results (Load Shape – ID_Irrigation_General) Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.0932 $191,774 $122,532 -$69,241 0.64 Total Resource Cost Test (TRC) No Adder $0.0932 $191,774 $111,393 -$80,381 0.58 Utility Cost Test (UCT) $0.0549 $112,962 $111,393 -$1,569 0.99 Discounted Participant Payback (years) 4.41 Table 13 - Wattsmart Business Food Service Equipment Cost-Effectiveness Results (Load Shape – ID_Miscellaneous_Mfg_General) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0357 $26,370 $38,842 $12,472 1.47 Total Resource Cost Test (TRC) No Adder $0.0357 $26,370 $35,311 $8,941 1.34 Utility Cost Test (UCT) $0.0240 $17,725 $35,311 $17,586 1.99 Discounted Participant Payback (years) 1.46 Table 14 - Wattsmart Business HVAC Cost-Effectiveness Results (Load Shape – ID_School_HVAC_Aux) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.1187 $371,935 $174,436 -$197,499 0.47 Total Resource Cost Test (TRC) No Adder $0.1187 $371,935 $158,578 -$213,357 0.43 Utility Cost Test (UCT) $0.0323 $101,282 $158,578 $57,296 1.57 Participant Cost Test (PCT) $361,241 $372,774 $11,533 1.03 Lifecycle Revenue Impacts ($/kWh) $0.0000068151 Discounted Participant Payback (years) 16.90 PY2020 Idaho Cost-Effectiveness Results – Wattsmart Business Program March 19, 2021 Page 8 of 9 Table 15 - Wattsmart Business Irrigation Cost-Effectiveness Results (Load Shape – ID_Irrigation_General) Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.0939 $1,396,596 $885,028 -$511,568 0.63 Total Resource Cost Test (TRC) No Adder $0.0939 $1,396,596 $804,571 -$592,025 0.58 Utility Cost Test (UCT) $0.0374 $556,851 $804,571 $247,720 1.44 Discounted Participant Payback (years) 5.60 Table 16 - Wattsmart Business Lighting Cost-Effectiveness Results (Load Shape – ID_Miscellaneous_Lighting) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0646 $2,454,796 $1,889,939 -$564,857 0.77 Total Resource Cost Test (TRC) No Adder $0.0646 $2,454,796 $1,718,127 -$736,670 0.70 Utility Cost Test (UCT) $0.0305 $1,158,124 $1,718,127 $560,003 1.48 Discounted Participant Payback (years) 4.91 Table 17 - Wattsmart Business Motors Cost-Effectiveness Results (Load Shape – ID_Miscellaneous_Mfg_General) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder $0.0270 $705,417 $1,403,545 $698,128 1.99 Total Resource Cost Test (TRC) No Adder $0.0270 $705,417 $1,275,950 $570,533 1.81 Utility Cost Test (UCT) $0.0268 $702,104 $1,275,950 $573,846 1.82 Participant Cost Test (PCT) $468,417 $2,441,037 $1,972,620 5.21 Lifecycle Revenue Impacts ($/kWh) $0.0000370713 Discounted Participant Payback (years) 0.31 PY2020 Idaho Cost-Effectiveness Results – Wattsmart Business Program March 19, 2021 Page 9 of 9 Table 18 - Wattsmart Business Refrigeration Cost-Effectiveness Results (Load Shape – ID_Grocery_Refrigeration) Cost-Effectiveness Test Levelized Costs Benefits Net Benefit/Cost Total Resource Cost Test (PTRC) + Conservation Adder $0.0500 $180,815 $192,985 $12,170 1.07 Total Resource Cost Test (TRC) No Adder $0.0500 $180,815 $175,441 -$5,374 0.97 Utility Cost Test (UCT) $0.0250 $90,281 $175,441 $85,161 1.94 Discounted Participant Payback (years) 5.32 Table 19 - Wattsmart Business Vendor Promotion Cost-Effectiveness Results (Load Shape – n/a) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder n/a $0 $0 $0 n/a Total Resource Cost Test (TRC) No Adder n/a $0 $0 $0 n/a Utility Cost Test (UCT) n/a $800 $0 -$800 n/a Discounted Participant Payback (years) n/a Table 20 - Wattsmart Business Energy Manager Co-Funding Cost-Effectiveness Results (Load Shape – n/a) Cost-Effectiveness Test Costs Benefits Total Resource Cost Test (PTRC) + Conservation Adder n/a $246 $0 -$246 n/a Total Resource Cost Test (TRC) No Adder n/a $246 $0 -$246 n/a Utility Cost Test (UCT) n/a $38,214 $0 -$38,214 n/a Participant Cost Test (PCT) $0 $37,968 $37,968 n/a Lifecycle Revenue Impacts ($/kWh) n/a Discounted Participant Payback (years) n/a