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Home My WebLink About20230605Final Approved Tariffs.pdf Connie Aschenbrenner Rate Design Senior Manager caschenbrenner@idahopower.com May 31, 2023 VIA ELECTRONIC MAIL Jan Noriyuki, Secretary Idaho Public Utilities Commission 11331 W. Chinden Boulevard Building 8, Suite 201-A Boise, Idaho 83714 Re: Case No. IPC-E-23-12 Idaho Power Company’s Application for Authority to Implement Power Cost Adjustment (“PCA”) Rates for Electric Service from June 1, 2023 Through May 31, 2024. Dear Ms. Noriyuki: Idaho Power Company hereby submits the enclosed compliance filing in the above-captioned proceeding pursuant to Idaho Public Utilities Commission Order No. 35804, which includes its tariff Schedule 55 as listed below, reflecting the change in rates with an effective date of June 1, 2023. Nineteenth Revised Sheet No. 55-1 Cancelling Eighteenth Revised Sheet No. 55-1 Thirteenth Revised Sheet No. 55-2 Cancelling Twelfth Revised Sheet No. 55-2 Twelfth Revised Sheet No. 55-3 Cancelling Eleventh Revised Sheet No. 55-3 If you have any questions regarding this filing, please contact Regulatory Consultant Jessi Brady at (208) 388-5764 or jbrady@idahopower.com. Very truly yours, Connie Aschenbrenner CA:sg Enclosures RECEIVED 2023 May 31 PM 4:47 IDAHO PUBLIC UTILITIES COMMISSION Idaho Power Company Nineteenth Revised Sheet No. 55-1 Cancels I.P.U.C. No. 29, Tariff No. 101 Eighteenth Revised Sheet No. 55-1 IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. Timothy E. Tatum, Vice President, Regulatory Affairs Effective – June 1, 2023 1221 West Idaho Street, Boise, Idaho SCHEDULE 55 POWER COST ADJUSTMENT APPLICABILITY This schedule is applicable to the electric energy delivered to all Idaho retail Customers served under the Company’s schedules and Special Contracts listed within this schedule. These loads are referred to as "firm" load for purposes of this schedule. BASE POWER COST AND PROJECTED POWER COST The Base Power Cost of the Company's rates, expressed in cents per kWh, is computed by dividing the sum of the Company's power cost components by firm kWh sales. The power cost components are segmented into three categories as described in the table below: The Projected Power Cost is the Company estimate, expressed in cents per kWh, of the power cost components for the forecasted time period beginning April 1 each year and ending the following March 31. BALANCING ADJUSTMENT The Balancing Adjustment is based upon the differences between previous Projected Power Cost and the power costs actually incurred. The Balancing Adjustment is 0.6357 cents per kWh. EARNINGS SHARING Order Nos. 30978, 32424, 33149, and 34071 directed the Company to share a portion of its earnings above a certain threshold with customers through the annual Power Cost Adjustment. The Company’s 2022 earnings were not above the prescribed threshold resulting in a credit of 0.0000 cents per kWh. IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveJune 5 2023 June 1, 2023 Per ON 35804 Jan Noriyuki Secretary Idaho Power Company Thirteenth Revised Sheet No. 55-2 Cancels I.P.U.C. No. 29, Tariff No. 101 Twelfth Revised Sheet No. 55-2 IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. Timothy E. Tatum, Vice President, Regulatory Affairs Effective – June 1, 2023 1221 West Idaho Street, Boise, Idaho SCHEDULE 55 POWER COST ADJUSTMENT (Continued) POWER COST ADJUSTMENT The Power Cost Adjustment (PCA) is the sum of: 1) 95 percent of the difference between the Projected Power Costs in Category 1 and the Base Power Costs in Category 1; 2) 100 percent of the difference between the Projected Power Costs in Category 2 and the Base Power Costs in Category 2; 3) 100 percent of the difference between the Projected Power Costs in Category 3 and the Base Power Costs in Category 3; 4) the Balancing Adjustment; and 5) Earnings Sharing. The following table calculates the rates for Categories 1, 2 and 3. The following table shows the determination of PCA rates for Categories 1, 2, and 3: Category Description Base Power Cost Projected Power Cost Difference Sharing % Rate (¢ per kWh) 1 The sum of fuel expense and purchased power expense (excluding purchases from cogeneration and small power producers), less the sum of off- system surplus sales revenue and revenue from market-based special contract pricing. 1.0253 1.9919 0.9667 95% 0.9183 2 Purchased power expense from cogeneration and small power producers. 0.8546 1.3953 0.5407 100% 0.5407 3 Demand response incentive payments. 0.0752 0.0734 -0.0018 100% -0.0018 Total 1.9551 3.4606 1.5055 1.4572 IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveJune 5 2023 June 1, 2023 Per ON 35804 Jan Noriyuki Secretary Idaho Power Company Twelfth Revised Sheet No. 55-3 Cancels I.P.U.C. No. 29, Tariff No. 101 Eleventh Revised Sheet No. 55-3 IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. Timothy E. Tatum, Vice President, Regulatory Affairs Effective – June 1, 2023 1221 West Idaho Street, Boise, Idaho SCHEDULE 55 POWER COST ADJUSTMENT (Continued) The monthly Power Cost Adjustment rates applied to the Energy rate of all metered schedules and Special Contracts are shown below. The monthly Power Cost Adjustment applied to the per unit charges of the nonmetered schedules is the monthly estimated usage times the cents per kWh rates shown below. Schedule Category Balancing djustment Earnings Sharing Total PCA 1 2 3 1 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 3 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 5 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 6 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 7 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 8 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 9S 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 9P 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 9T 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 15 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 19S 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 19P 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 19T 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 24 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 40 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 41 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 42 0.9183 0.5407 (0.0018) 0.6357 (0.0000) 2.0929 26 0.9183 0.5407 (0.0018) 0.6357 * 2.0929 29 0.9183 0.5407 (0.0018) 0.6357 * 2.0929 30 0.9183 0.5407 (0.0018) 0.6357 * 2.0929 32 0.9183 0.5407 (0.0018) 0.6357 * 2.0929 * Earnings Sharing Credits are applied as monthly amounts per the table below. Schedule Special Contract Monthly Credit 26 Micron ($0.00) 29 Simplot ($0.00) 30 DOE ($0.00) 32 Simplot-Caldwell ($0.00) EXPIRATION The Power Cost Adjustment included on this schedule will expire May 31, 2024. IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveJune 5 2023 June 1, 2023 Per ON 35804 Jan Noriyuki Secretary Idaho Power CompanyEighteenth Nineteenth Revised Sheet No. 55-1 Cancels I.P.U.C. No. 29, Tariff No. 101 Seventeenth Eighteenth Revised Sheet No. 55-1 IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. 35428 Timothy E. Tatum, Vice President, Regulatory Affairs Effective – June 15, 20223 1221 West Idaho Street, Boise, Idaho SCHEDULE 55 POWER COST ADJUSTMENT APPLICABILITY This schedule is applicable to the electric energy delivered to all Idaho retail Customers served under the Company’s schedules and Special Contracts listed within this schedule. These loads are referred to as "firm" load for purposes of this schedule. BASE POWER COST AND PROJECTED POWER COST The Base Power Cost of the Company's rates, expressed in cents per kWh, is computed by dividing the sum of the Company's power cost components by firm kWh sales. The power cost components are segmented into three categories as described in the table below: The Projected Power Cost is the Company estimate, expressed in cents per kWh, of the power cost components for the forecasted time period beginning April 1 each year and ending the following March 31. BALANCING ADJUSTMENT The Balancing Adjustment is based upon the differences between previous Projected Power Cost and the power costs actually incurred. The Balancing Adjustment is 0.2579 6357 cents per kWh. EARNINGS SHARING Order Nos. 30978, 32424, 33149, and 34071 directed the Company to share a portion of its earnings above a certain threshold with customers through the annual Power Cost Adjustment. The Company’s 20212 earnings were not above the prescribed threshold resulting in a credit of 0.0038 0000 cents per kWh. Idaho Power Company Twelfth Thirteenth Revised Sheet No. 55-2 Cancels I.P.U.C. No. 29, Tariff No. 101Eleventh Twelfth Revised Sheet No. 55-2 IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. 35421 Timothy E. Tatum, Vice President, Regulatory Affairs Effective – June 1, 20223 1221 West Idaho Street, Boise, Idaho SCHEDULE 55 POWER COST ADJUSTMENT (Continued) POWER COST ADJUSTMENT The Power Cost Adjustment (PCA) is the sum of: 1) 95 percent of the difference between the Projected Power Costs in Category 1 and the Base Power Costs in Category 1; 2) 100 percent of the difference between the Projected Power Costs in Category 2 and the Base Power Costs in Category 2; 3) 100 percent of the difference between the Projected Power Costs in Category 3 and the Base Power Costs in Category 3; 4) the Balancing Adjustment; and 5) Earnings Sharing. The following table calculates the rates for Categories 1, 2 and 3. The following table shows the determination of PCA rates for Categories 1, 2, and 3: Category Description Base Power Cost Projected Power Cost Difference Sharing % Rate (¢ per kWh) 1 The sum of fuel expense and purchased power expense (excluding purchases from cogeneration and small power producers), less the sum of off- system surplus sales revenue and revenue from market-based special contract pricing. 1.023453 1.71319919 0.68979667 95% 0.65529183 2 Purchased power expense from cogeneration and small power producers. 0.853146 1.35493953 0.50185407 100% 0.50185407 3 Demand response incentive payments. 0.07512 0.05410734 - 0.02090018 100% -0.02090018 Total 1.95169551 3.12214606 1.17055055 1.136064572 Idaho Power Company Eleventh Twelfth Revised Sheet No. 55-3 Cancels I.P.U.C. No. 29, Tariff No. 101Tenth Eleventh Revised Sheet No. 55-3 IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. 35421 Timothy E. Tatum, Vice President, Regulatory Affairs Effective – June 1, 20223 1221 West Idaho Street, Boise, Idaho SCHEDULE 55 POWER COST ADJUSTMENT (Continued) The monthly Power Cost Adjustment rates applied to the Energy rate of all metered schedules and Special Contracts are shown below. The monthly Power Cost Adjustment applied to the per unit charges of the nonmetered schedules is the monthly estimated usage times the cents per kWh rates shown below. Schedule Category Balancing djustment Earnings Sharing Total PCA 1 2 3 1 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00470000) 1.38932.0929 3 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00450000) 1.38952.0929 5 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00450000) 1.38952.0929 6 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00470000) 1.38932.0929 7 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00590000) 1.38812.0929 8 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00590000) 1.38812.0929 9S 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00350000) 1.39052.0929 9P 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00310000) 1.39092.0929 9T 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00350000) 1.39052.0929 15 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.01220000) 1.38182.0929 19S 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00350000) 1.39052.0929 19P 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00270000) 1.39132.0929 19T 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00250000) 1.39152.0929 24 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.003800) 1.39022.0929 40 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00420000) 1.38982.0929 41 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00740000) 1.38662.0929 42 0.65529183 0.50185407 (0.02090018) 0.25796357 (0.00300000) 1.39102.0929 26 0.65529183 0.50185407 (0.02090018) 0.25796357 * 1.39402.0929 29 0.65529183 0.50185407 (0.02090018) 0.25796357 * 1.39402.0929 30 0.65529183 0.50185407 (0.02090018) 0.25796357 * 1.39402.0929 32 0.9183 0.5407 (0.0018) 0.6357 * 2.0929 * Earnings Sharing Credits are applied as monthly amounts per the table below. Schedule Special Contract Monthly Credit 26 Micron ($1,307.240.00) Idaho Power Company Eleventh Twelfth Revised Sheet No. 55-3 Cancels I.P.U.C. No. 29, Tariff No. 101Tenth Eleventh Revised Sheet No. 55-3 IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. 35421 Timothy E. Tatum, Vice President, Regulatory Affairs Effective – June 1, 20223 1221 West Idaho Street, Boise, Idaho 29 Simplot ($328.560.00) 30 DOE ($432.240.00) 32 Simplot-Caldwell ($0.00) EXPIRATION The Power Cost Adjustment included on this schedule will expire May 31, 20234.