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HomeMy WebLinkAbout20100419DSM 2009 Revised Supplement 1.pdfLISA D. NORDSTROM Lead Counsel InordstromCâidahopower.com eslDA~PORCI An IDACORP Company April 16,2010 VIA HAND DELIVERY Jean D. Jewell, Secretary Idaho Public Utilities Commission 472 West Washington Street P.O. Box 83720 Boise, Idaho 83720-0074 Re: Case No. IPC-E-10-09 Revised Supplement 1 of the Demand-Side Management 2009 Annual Report Dear Ms. Jewell: On March 15, 2010, Idaho Power Company ("Idaho Power") filed its Demand- Side Management 2009 Annual Report, which included "Supplement 1: Cost- Effectiveness" and "Supplement 2: Evaluation." At the time of the filing, Idaho Power believed it was correctly using the method to calculate the total resource cost ("TRC") as defined in the California Standard Practice Manual, Correction Memo dated 2007. However, the Company misinterpreted the formula, resulting in a slight inflation of the TRC costs throughout Supplement 1. Idaho Power is filng this revision to correct its calculation of the formula. The new calculation does not change the TRC benefit/cost ratios of demand response programs, programs or measures where no net-to-gross. ratios are used, programs or measures where there are no incentives paid to customers, or programs or measures where there are no customer costs, such as direct install measures. The change in the calculation used in the revised Supplement 1 slightly decreases the TRC costs, resulting in a higher TRC benefit/cost ratio in many cases. However, it does not change any TRC ratio such that it would increase the ratio to be greater than one when compared to the original Supplement 1. Idaho Power asks that you retain the enclosed revised Supplement 1 and recycle the previous version. The Company regrets any confusion that may have occurred in P.O. Box 70 (83707) 1221 W. Idaho St. Boise, 1083702 Jean D. Jewell, Secretary April 16, 2010 Page 2 the interim. Please feel free to contact Pete Pengily at (208) 388-2281 if you have questions or require further clarification. LDN:csb Enclosures cc: Pete Pengily (w/o encl.) Theresa Drake (w/o encl.) Darlene Nemnich (w/o encl.) P&RS Files (w/encl.) Legal Files (w/encl.) Very truly yours,cÁ~jJ.~~ Lisa D. Nordstrom .~'-, This document printed on recycled paper. Idaho Power Company Supplement 1: Cost-Effectiveness TABLE OF CONTENTS Table of Contents ......... ....................................... ........... ..............................................................................1 Supplement 1: Cost-Effectiveness ...............................................................................................................1 Cost-Effectiveness .................................................................................................................................1 Northwest Power and Conservation Council's 6th Power Plan..............................................................3 Cost-Effectiveness Tables by Program........................................................................................................5 AlC Cool Credit .............. .......................................................................................................................5 FlexPeak Management........................................................................................................................... 7 Irigation Peak Rewards.........................................................................................................................9 Ductless Heat Pump Pilot........................................................................................... ....................... ..11 Energy Efficient Lighting ....................................................................................................................13 Energy House Calls..............................................................................................................................15 ENERGY STAR(ß Homes Northwest ..................................................................................................21 Heating & Cooling Efficiency Program ..... ............ ... ..........................................................................23 Home Improvement Program ......... ........................ .................... ......... ................................................27 Home Products Program ................................................... ...................................................................29 Rebate Advantage....................................................................................................... .................. ..... ..31 See Ya Later Refrigerator ....................................................................................................................35 Weatherization Assistance for Qualified Customers ...........................................................................37 Weatherization Solutions for Eligible Customers................................................................................39 Building Efficiency ................................................................................................................ ..............41 Custom Efficiency. ... ............................................... ... .........................................................................43 Easy Upgrades .......... ............................................... ............................................................................45 Holiday Lighting ........................... ................ ........... ............................................................................57 Irrgation Efficiency .... ............................................................................................... ..........................59 Demand-Side Management 2009 Annual Report Page i Idaho Power Company Supplement 1: Cost-Effectiveness SUPPLEMENT 1: CosT..EFFECTIVENESS Cost..Effectiveness Idaho Power considers cost-effectiveness of primary importance in the design, implementation, and tracking of energy efficiency and demand response programs. In the past, most of Idaho Power's energy efficiency and demand response programs were preliminarily identified through the Integrated Resource Plan (IRP) process. Because of Idaho Power's diversified portfolio of programs, in the 2009 IRP most of the new potential for energy efficiency in Idaho Power's service area is based on additional measures rather than new programs. The process in the IRP remains the same for determining if measures should be adopted as it was for program inclusion. Specific programs or potential energy savings measures are screened by sector to determine if the Ievelized cost of these programs or measures is less than supply-side resource alternatives. If they are shown to be less costly than supply-side resources from a Ievelized cost perspective, the hourly shaped energy savings is subsequently included in the IR as a resource. Prior to the actual implementation of energy effciency or demand response programs, Idaho Power performs a cost-effectiveness analysis to assess whether a specific potential program design wil be cost-effective from the perspective of Idaho Power and its customers. Incorporated into these models are inputs from various sources in order to use the most current and reliable information available. When possible, Idaho Power leverages the experiences of other companies in the region, or throughout the countr, to help identify specific program parameters. This is typically accomplished through discussions with other utilities' program managers and researchers. Idaho Power also uses electrc industry research organizations, such as E Source, Edison Electrcal Institute (EEl), Consortium for Energy Efficiency (CEE), American Council for an Energy Effcient Economy (ACEEE), Advanced Load Control Allance (ALCA), Association of Energy Service Professionals (AESP), Energy Insights, and others, to identify similar programs and their results. For other assumptions, including estimated costs, savings, and net-to-gross (NTG) ratio estimates, Idaho Power relies on sources such as the Northwest Power and Conservation Council (NPCC), Regional Technical Forum (RTF), Northwest Energy Effciency Alliance (NEEA), the Database for Energy Efficiency Resources (DEER), the Energy Trust of Oregon (ETO), the Bonnevile Power Administration (BPA), third-party consultants, and other regional utilities. The remaining inputs used in the cost-effectiveness models are obtained from the IRP process. The Technical Appendix of Idaho Power's most recent IR is the source for the financial assumptions, including the discount rate and inflation rate. The IRP is also the source of the demand-side management (DSM) alternative costs, which is the value of energy savings and demand reduction resulting from the DSM programs. These DSM alternative costs vary by season and time of day. The DSM alternative energy costs are based on either projected fuel costs of a peaking unit or forward electrcity prices as determined by Idaho Power's power supply model, AURORAxmp(ß Electrc Market ModeL. The avoided capital cost of capacity is based on a gas fired simple cycle tuine. For its cost-effectiveness methodology, Idaho Power relies on the Electric Power Research Institute End Use Technical Assessment Guide (TAG), the California Standard Practice Manual and its subsequent addendum, and the National Action Plan for Energy Efficiency's (NAPEE) Understanding Cost-Effectiveness of Energy Effciency Programs: Best Practices, Technical Methods, and Emerging Issues for Policy~Makers. Traditionally, Idaho Power has primarily used the Total Resource Cost (TRC) test and the Utility Cost (UC) test to develop benefit/cost (B/C) ratios to determine the cost-effectiveness Demand-Side Management 2009 Annual Report Page 1 Supplement 1: Cost-Effectiveness Idaho Power Company of DSM programs. These tests are stil used because, as defined in the TAG and California Standard Practice Manual, they are the most similar to supply-side tests and provide a useful basis to compare demand-side and supply-side resources. Idaho Power determines cost-effectiveness on a measure basis, where relevant, and program basis. As part of the Demand-Side Management 2009 Annual Report Supplement 1: Cost-Effectiveness and where applicable, Idaho Power has begun publishing the cost-effectiveness by measure, calculating the participant cost test (PCT) at the program level, listing the assumptions associated with cost-effectiveness, and citing sources and dates of metrcs used in the cost-effectiveness calculation. In future demand-side management annual reports, Idaho Power wil also include the Rate Payer Impact (RIM) test as specified in the memorandum of understanding (MOU) included in Supplement 2: Evaluation. Within the MOU, the IPUC staffhas agreed to provide reasonable and necessary leeway for the implementation of the guidelines described in the MOU for the Demand-Side Management 2009 Annual Report. The B/C ratio from the participant cost perspective is not calculated for the demand response programs, Weatherization Assistance for Qualified Customers, Weatherization Solutions for Eligible Customers, See Ya Later Refrigerator, and Energy House Calls. These programs have few or no customer costs. The Irgation Peak Rewards program does have some direct costs for participants with small horsepower (hp) pumps where a fee is charged to install program equipment at the enrolled service location. Idaho Power markets the Irrgation Peak Rewards program to all irrgation customers. For those customers who have at least one pump of greater than 30 hp, Idaho Power sends them an estimate of incentives and indicates if a fee for participating in the program might apply for each of their service locations. This estimate gives the potential participant information necessary to determine if the program could be beneficial to them while letting the customer include their own unique expenses, such as additional labor. Idaho Power's goal is to have all matue programs have B/C ratios greater than 1.0 for the TRC, UC, and PCT tests at the program level and the measure level where appropriate. An exception to this is when there is interaction between measures. Idaho Power may choose to launch a pilot or a program to evaluate estimates or assumptions in the cost-effectiveness analysis. Following implementation of a program, cost-effectiveness analyses are reviewed as new inputs from actual program activity become available, such as actual program expenses, savings, or participation levels. If measures or programs are determined to be not cost-effective after implementation, the program or measures are reexamined including input provided from the company's energy efficiency advisory group. The Demand-Side Management 2009 Annual Report contains program UC and TRC B/C ratios using actual cost information over the life of the program through 2009. Supplement 1: Cost-Effectiveness contains annual cost-effectiveness metrcs for each program using actual information from 2009, includes results of the PCT, and includes application of a NTG factor where appropriate. Current customer energy rates were used in the calculation of the B/C ratios from a PCT perspective. Rate increases were not forecast or escalated. Where applicable, the cost-effectiveness results of the demand response programs include historical expenses. To be consistent with the IR' and since demand response programs are inherently different from energy efficiency programs, the B/C ratios for AlC Cool Credit and Irgation Peak Rewards are calculated over a 20-year program life, while the B/C ratios for FlexPeak Management are calculated over 10 years, Page 2 Demand-Side Management 2009 Annual Report Idaho Power Company Supplement 1: Cost-Effectiveness Following the annual program cost-effectiveness results are tables that include measure level cost-effectiveness. Exceptions to the measure level tables are the demand response programs which do not provide incentives for installed end-use measures. Other programs that are not analyzed at the measure level include Custom Efficiency, the Custom Option of Irrgation Efficiency Rewards, and Weatherization Assistance for Qualified Customers where projects include multiple interactive measures that are analyzed at the project leveL. The measure level cost-effectiveness includes inputs of measure life, energy savings, demand reduction, incremental cost, NTG factors, incentive, program administration cost, and net benefit. Program administration costs include all non-incentive costs: labor, marketing, training, education, purchased services, and evaluation. NTG ratios are used in the calculation of the B/C ratios of most programs. F or some programs including Energy Efficient Lighting and See Ya Later Refrigerator the unit incremental savings are net realized energy savings from third party sources. The energy savings for the Menu Option of Irrgation Effciency Rewards also includes a NTG adjustment in the unit incremental savings. For the Custom Efficiency program a NTG adjustment is not used in the B/C ratio calculations because each project is analyzed independently and Idaho Power believes that there is considerable spilover from this program. A sensitivity analysis was performed for this program which indicated that even with a NTG adjustment of 30 percent the program would stil be cost-effective from a TRC perspective. Power and Conservation Cou ls Power Plan On February 10,2010 members ofthe NPCC, also known as the council, adopted the NPCC's 6th regional power plan, the Sixth Power Plan. The plan identifies a five-year regional energy saving target of 1,200 average megawatts (aMW) and calls for 5,900 aMW of cost-effective efficiencies by 2030. Idaho Power along with the BPA, NEEA, other Northwest power delivery companies, and interested stakeholders participated in workshops and meetings to help determine what would be included in the plan. Although the council specifically does not calculate energy effciency targets for specific utilities, the regional savings forecasts are typically allocated by share of regional electricity load. Idaho Power supplied comments to the council regarding the Draft 6th Plan in July 2009. In these comments, Idaho Power stated that the proposed targets in the plan exceed the potential for achievable energy savings in Idaho Power's service area and recommended a regional energy savings target that has a higher likelihood of being attained be adopted. On July 13, after discussions with the NPCC staff, Idaho Power agreed that a range of achievable energy savings exists and that 1,100 aMW would be a reasonable lower threshold with an expected case of 1,200 aMW. Idaho Power also agreed that the Sixth Power Plan Action should include a "regional check-in" with appropriate target adjustments after two years due to the uncertainty surounding the achievability of energy savings potential as laid out in the plan. In November, Idaho Power submitted comments on the NPCC's Sixth Power Plan. Idaho Power's comments included supporting the level of uncertainty that the Council included in its planning, the inclusion of wind integration and transmission in the plan, and reinforced the comments of the Pacific Northwest Utilities Conference Committee (PNUCC) regarding the depiction of future power costs in the plan. Regarding energy effciency, Idaho Power commended the NPCC and its staff on promoting aggressive steps toward energy efficiency in the region and described Idaho Power's methods Demand-Side Management 2009 Annual Report Page 3 Supplement 1: Cost-Effectiveness Idaho Power Company of encouraging energy effciency and accounting for savings. The company expressed its concern that some measures used to develop the regional potential might not be marketable or market ready in Idaho Power's service area and that the plan includes energy savings based on behavioral attbutes, code changes, and market transformation in its energy savings targets. Idaho Power also pointed out the uniqueness of each utility including Idaho Power in regards to their energy efficiency methods and alternative avoided cost of energy as compared to the NPCC. Idaho Power specifically supports this section of the Sixth Power Plan Action Plan: For this reason, the Council developed a range of likely conservation savings over the first years of 1,100 to 1,400 average megawatts. The Council wil monitor the actual conservation savings acquired by the region by conducting reviews ofthe region's progress each year during the initial five-year planning horizon of the Sixth Power Plan. More specifically, CONS 16, calls for a midterm review of regional progress towards the regional conservation target. This will permit the Council to consider adjustments to its regional conservation target for the remainder of the period covered by the Action Plan. In addition, the midterm review wil assess the impact of the region's progress on the acquisition of other resource development actions. Idaho Power has a stated commitment to pursue all cost-effective energy efficiency, even though Idaho Powers methods of achieving its energy efficiency targets may differ from those proposed by the NPCC. Page 4 Demand-Side Management 2009 Annual Report Id a h o P o w e r C o m p a n y Su p p l e m e n t 1 : C o s t - E f f e c t i v e n e s s TA B L E S A/ C C o o l Se g m e n t : R e s i d e n t i a l 20 Y e a r P r o g r a m C o s t - E f f e c t i v e n e s s S u m m a r y QQ $ l I n D u t s ( N P V L Re f . SU m m a r y . o f Q ø s t o . f f e e t i v e r u ! $ s R e s u l t s TO l a l P r o g r a m A d m l n l S t l ' $ ~. $ 3 S , 1 8 1 Te s t CO s t Be n e f Ra t i o To i i P r o g r i m I n c e n t i v e s $ 8, ~ . 8 8 1 1 ut i l t y C o H e s t $ $ 34 . 8 3 7 , . 2 9 4 1. i J 10 i i t R l t ç o s t $ $1 , 7 2 4 , 0 4 2 P To t a l R e s o u r c e c o s t T e s $ $ Oi A " " 7 no " 1. 0 9 pa r t i c i p a n t C O $ H e s t Nl A Nf A Nl A Tt l l S h i f E n e t g y u t l i t C o s t $ 29 1 , 9 9 1 SE Co s t s l l d B e è f t s I n c i u d e d i l f E å ê h T e s Ut l l í t C O $ t T e s t ;: P + $ E =$ Tø t a l M è a s u r e E a u i ø m e r i t a n d l n s t l l a t l o n l l n ê r e m f h t a l P a r t c i ø l l t C o s t ) $ . M T o t á l R e s Q l r c e C o s t T e s t 1= =$ + N U I + N E B Pa r t i c i p a n t C o s t e s t N/ A Nf A Ne t B e n e f i t I n p u t s (N P V ) Re f . 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