Loading...
HomeMy WebLinkAbout20230315IPC Direct P. Goralski.pdf BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION IN THE MATTER OF IDAHO POWER ) COMPANY’S APPLICATION FOR ) CASE NO. IPC-E-23-09 AUTHORITY TO IMPLEMENT FIXED COST ) ADJUSTMENT (“FCA”) RATES FOR ) ELECTRIC SERVICE FROM June 1, ) 2023 THROUGH MAY 31, 2024. ) ) IDAHO POWER COMPANY DIRECT TESTIMONY OF PAWEL P. GORALSKI RECEIVED Wednesday, March 15, 2023 11:21:27 AM IDAHO PUBLIC UTILITIES COMMISSION GORALSKI, DI 2 Idaho Power Company Q. Please state your name and business address. 1 A. My name is Pawel (“Paul”) P. Goralski. My 2 business address is 1221 West Idaho Street, Boise, Idaho 3 83702. 4 Q. By whom are you employed and in what capacity? 5 A. I am employed by Idaho Power Company (“Idaho 6 Power” or “Company”) as a Regulatory Consultant in the 7 Regulatory Affairs Department. 8 Q. Please describe your educational background. 9 A. In May of 2007, I received a Bachelor of 10 Business Administration degree in Finance from Boise State 11 University in Boise, Idaho. I have also attended “The 12 Basics: Practical Regulatory Training for the Electric 13 Industry,” an electric utility ratemaking course offered 14 through the New Mexico State University’s Center for Public 15 Utilities, “Electric Utility Fundamentals and Insights,” an 16 electric utility course offered by Western Energy 17 Institute, and “Electric Rates Advanced Course,” an 18 electric utility ratemaking course offered through Edison 19 Electric Institute. 20 Q. Please describe your work experience with 21 Idaho Power. 22 A. In 2017, I was hired as a Regulatory Analyst 23 in the Company’s Regulatory Affairs Department, and in 2020 24 I was promoted to my current position of Regulatory 25 GORALSKI, DI 3 Idaho Power Company Consultant. My primary responsibilities include supporting 1 the Company’s class cost-of-service activities, developing 2 pricing for special contract customers and other large load 3 pricing analysis, supporting the Company’s annual Fixed 4 Cost Adjustment (“FCA”) calculation and serving as the 5 Company witness. I have also been its witness for the 6 Company’s annual Demand-Side Management (“DSM”) prudency 7 filings. 8 Q. What is the purpose of your testimony? 9 A. The purpose of my testimony is to describe the 10 Company’s request to implement its annual FCA rates in 11 conformance with Idaho Public Utilities Commission 12 (“Commission”) Order No. 32505 (Case No. IPC-E-11-19), 13 which approved the FCA as a permanent rate mechanism for 14 the Residential and Small General Service customers, and 15 Order No. 35273 (Case No. IPC-E-21-39), which approved 16 modification of the FCA to institute separate fixed cost 17 tracking for residential and small general service 18 customers added to the Company’s system effective January 19 1, 2022. 20 Q. What is the Company requesting in this case? 21 A. The Company is seeking authority to collect 22 the 2022 FCA deferral balance of $25,065,075 through its 23 proposed 2023-2024 FCA rates. If approved, the 2023 – 2024 24 FCA rates will result in a decrease to annual billed 25 GORALSKI, DI 4 Idaho Power Company revenue for the Residential and Small General Service 1 classes of $9,976,903, or 1.56 percent, effective June 1, 2 2023. 3 Q. How is your testimony organized? 4 A. My testimony will discuss four areas related 5 to the FCA mechanism and Schedule 54, Fixed Cost 6 Adjustment. First, I will discuss the need for the FCA 7 itself. Second, I will discuss how the FCA modification 8 approved by Order No. 35273 was incorporated in the 2022 9 FCA deferral balance. Third I will provide an overview of 10 the FCA mechanics and how each component is determined, and 11 determination of the 2022 FCA deferral amount. Lastly, I 12 will discuss the calculation of the proposed FCA rates to 13 become effective June 1, 2023, remaining in effect until 14 May 31, 2024. 15 I. BENEFIT OF FIXED COST ADJUSTMENT MECHANISM 16 Q. Why is the FCA mechanism necessary? 17 A. The existing two-part rate design for 18 Residential and Small General Service customers collects a 19 significant portion of the classes’ fixed costs through the 20 volumetric energy rate. The FCA is a true-up mechanism that 21 “decouples,” or separates, billed energy sales from revenue 22 in order to remove the financial disincentive that exists 23 when the Company invests in DSM resources and activities. 24 Under the FCA, rates for Residential Service (Schedules 1, 25 GORALSKI, DI 5 Idaho Power Company 3, 4, 5, and 6) and Small General Service (Schedule 7 and 1 8) customers are adjusted annually to recover or refund the 2 difference between the level of fixed cost recovery 3 authorized by the Commission in the Company’s most recent 4 general rate case and the level of fixed cost recovery that 5 the Company received based upon the actual billed energy 6 sales during the previous calendar year. 7 Q. What level of incremental annual energy 8 efficiency savings was achieved in 2022? 9 A. Idaho Power achieved 169,889 megawatt-hours 10 (“MWh”) of savings system-wide, which is enough energy to 11 power approximately 14,900 average homes a year in Idaho 12 Power’s service area and exceeded the economic technical 13 achievable potential energy efficiency target set in the 14 Company’s 2021 Integrated Resource Plan for the year 2022. 15 These energy savings are more particularly described in the 16 2022 DSM Annual Report filed in Case No. IPC-E-23-10. 17 Q. Do claimed incremental DSM savings encompass 18 the entirety of energy savings customers experience from 19 Idaho Power’s DSM efforts? 20 A. No. First, it is important to recognize that 21 savings claimed in any given year continue to recur in 22 subsequent years through the life of the DSM measure. For 23 example, a measure installed in 2019 with a five-year 24 measure life continues to provide energy savings in 2022, 25 GORALSKI, DI 6 Idaho Power Company though those savings are not included in the 2022 claimed 1 savings reported in the Company’s 2022 DSM Annual Report. 2 Thus, the full impact of the Company’s DSM efforts is 3 better represented by the cumulative impact of historical 4 claimed savings whose measure life extends through 2022. 5 Second, the Company promotes significant customer 6 educational, outreach and awareness activities, promotion 7 of codes and standards, and marketing efforts that are not 8 quantified or claimed as part of Idaho Power’s annual DSM 9 savings but are likely to result in energy savings 10 experienced by the customer and accruing to Idaho Power’s 11 electric system over time. 12 Q. Has the FCA mechanism been effective at 13 removing the financial disincentive that would otherwise be 14 associated with Idaho Power pursuing all cost-effective 15 energy efficiency? 16 A. Yes. The FCA has been and continues to be an 17 effective mechanism that has positioned the Company to 18 continue to support energy efficiency resources while 19 maintaining a reasonable opportunity to recover its fixed 20 cost of serving residential and small commercial customers. 21 // 22 // 23 // 24 // 25 GORALSKI, DI 7 Idaho Power Company II. 2022 FCA DEFERRAL INCLUSIVE OF COMMISSION-APPROVED 1 MODIFICATION 2 Q. Does determination of the 2022 FCA deferral 3 amount include the modification approved by the Commission 4 in Case No. IPC-E-21-39? 5 A. Yes. As part of determining the 2022 FCA 6 deferral, customers added to Idaho Power’s system starting 7 January 1, 2022, are considered “new” and have separate, 8 reduced fixed cost tracking, while the 2021 FCA customer 9 count constitutes the level of “existing” customers whose 10 fixed costs are tracked with then-existing FCA components. 11 These new and existing FCA components are described in more 12 detail later in my testimony. 13 Q. How was the existing customer count determined 14 in the calculation of the 2022 FCA deferral? 15 A. Consistent with the method approved by the 16 Commission in Order No. 35273, the existing customer count 17 was set at the 2021 average number of customers. This 18 existing customer count will remain at that level until new 19 rates go into effect following the Company’s next general 20 rate case. 21 Q. How was the new customer count determined in 22 the calculation of the 2022 FCA deferral? 23 A. Because the FCA is an annual mechanism based 24 on average customers for the entire year, new customers 25 GORALSKI, DI 8 Idaho Power Company were determined as the difference between 2021 average 1 customers and 2022 average customers. This method captures 2 customers added starting January 1, 2022 through December 3 31, 2022 to determine the annual average incremental or 4 “new” customer count. 5 Q. Is there a difference in FCA rates to recover 6 the FCA deferral between existing and new customers? 7 A. No. While determination of the 2022 FCA 8 deferral includes separate, and reduced fixed cost tracking 9 for new customers, the 2022 FCA deferral is recovered 10 through a single FCA rate applicable to all Residential 11 customers, new and existing, and a single FCA rate 12 applicable to all Small General Service customers. 13 III. FCA DETERMINATION FOR CALENDAR YEAR 2022 14 Q. Please describe the FCA mechanism components 15 and calculation. 16 A. For both the Residential and Small General 17 Service classes, the FCA mechanism is the same. The formula 18 used to determine the FCA amount is: 19 FCA = (CUST X FCC) – (ACTUAL X FCE) 20 Where: 21 FCA = Fixed Cost Adjustment; 22 CUST = Average Number of Customers, by class; 23 FCC = Fixed Cost per Customer rate, by class; 24 GORALSKI, DI 9 Idaho Power Company ACTUAL = Actual Billed kilowatt-hours (“kWh”) 1 Energy Sales, by class; and 2 FCE = Fixed Cost per Energy rate, by class. 3 The FCA amount is the difference between the Company’s 4 level of “authorized fixed cost recovery” (CUST X FCC) and 5 the level of “actual fixed cost recovery” (ACTUAL X FCE). 6 The FCC and FCE are bifurcated for new and existing 7 customers, with new customer components labeled as “FCC-8 Dist” and “FCE-Dist.” 9 Q. What is the difference in fixed cost tracking 10 between new and existing customers, and what is the basis 11 for those costs? 12 A. For both new and existing customers, the basis 13 for fixed cost tracking is the same, the Company’s most 14 recent general rate case. Existing customer FCC and FCE 15 remain unchanged and represent fixed costs associated with 16 the Company’s generation-, transmission-, and distribution-17 related system components. Starting with the 2022 deferral, 18 for new customers only the distribution-related system cost 19 components are tracked by the FCA. Table 1 lists the FCA 20 cost components for new and existing customers. 21 // 22 // 23 // 24 // 25 GORALSKI, DI 10 Idaho Power Company Table 1. FCA Components – Existing and New Customers 1 Residential Small General Service FCC (per Existing Customer) $650.63 $360.57 FCC-Dist. (per New Customer) $317.72 $256.29 FCE (per kWh Existing Customer) $0.051602 $0.068633 FCE-Dist. (per kWh New Customer) $0.025199 $0.048783 2 Q. Can the FCA deferral balance be either 3 positive or negative? 4 A. Yes. A positive FCA indicates the Company's 5 authorized level of fixed cost recovery is greater than the 6 level of fixed costs recovered through the energy rate, 7 which occurs when energy use per customer (“UPC”) has 8 decreased from when the FCA components were established. In 9 a similar fashion, a negative FCA indicates the Company's 10 authorized fixed cost recovery amount is less than the 11 fixed costs determined to have been recovered through the 12 energy rate and results in a refund to customers. 13 Q. Did the underlying cost basis for the FCC and 14 FCE rates used to determine the 2022 FCA deferral balance 15 change from prior years? 16 A. No. All customers included in the 2022 FCA 17 calculation use costs from the Company’s most recent 18 general rate case, Case No. IPC-E-11-08, to establish the 19 FCC and FCE, and they can be found in the Company’s tariff 20 under Schedule 54, Fixed Cost Adjustment. FCC-Dist and FCE-21 Dist rates are based on the same underling general rate 22 GORALSKI, DI 11 Idaho Power Company case data, but only represent distribution system costs as 1 previously noted, and were established as part of the FCA 2 modification filing, IPC-E-21-39. 3 Q. How is the authorized level of fixed cost 4 recovery derived? 5 A. The authorized level of fixed cost recovery is 6 the product of the applicable FCC and the average number of 7 customers, by new and existing customer, and by class. The 8 Company uses a prorated customer count based on the number 9 of active utility service agreements at the end of each 10 month. This approach applies the same methodology that was 11 used to determine customer counts in the Company’s most 12 recent general rate case. The annual average customer count 13 is derived by calculating the average of the 12 monthly 14 prorated customer counts. 15 Q. How is the actual level of fixed cost recovery 16 determined? 17 A. In compliance with Order No. 33295, the actual 18 level of fixed cost recovery is the product of the 19 applicable FCE and the actual billed energy sales for the 20 calendar year, measured in kWh. 21 Q. How are billed energy sales allocated between 22 existing and new customers? 23 A. For each customer group, Residential and Small 24 General Service, total billed energy sales are divided by 25 GORALSKI, DI 12 Idaho Power Company average customer count to determine the UPC for the 1 customer group. The count of existing and new customers is 2 multiplied by the respective customer group UPC to allocate 3 the share of total billed energy sales on a pro rata basis 4 between existing and new customers. 5 Q. Does the Company compute a monthly FCA 6 deferral balance? 7 A. Yes. Since 2009, the Company has reported the 8 estimated monthly FCA deferral balance in the monthly FCA 9 Report provided to the Commission. Exhibit No. 1 is a copy 10 of the monthly FCA Report for calendar year 2022 with year-11 end information. 12 Although the FCA is an annual mechanism that is 13 ultimately calculated and determined using customer counts 14 and billed energy sales data for the entire calendar year, 15 a monthly FCA deferral balance is estimated and recorded in 16 the Company’s accounting records to maintain compliance 17 with Generally Accepted Accounting Principles. This 18 estimated monthly FCA deferral balance is provided to the 19 Commission in the monthly FCA Report. 20 Q. Is it possible for the reported monthly FCA 21 deferral balance estimate to differ from the annual amount? 22 A. Yes. Because the monthly FCA deferral balance 23 is computed using monthly customer counts while the annual 24 FCA deferral balance is computed using the average customer 25 GORALSKI, DI 13 Idaho Power Company count for the year, the sum of the monthly calculations may 1 differ from the annual calculation. 2 Q. How is the reported monthly estimate adjusted 3 to align with the authorized annual amount? 4 A. At year-end, once the annual FCA amount is 5 determined, an adjustment is made to the sum of the 6 previously recorded 12 monthly estimates to align with the 7 annual FCA deferral balance. Because the annual customer 8 count is the average of the 12 monthly customer counts, it 9 is not available until year-end. 10 Q. What adjustment was made to the 2022 monthly 11 estimates to translate to the Company’s single year-end 12 2022 FCA deferral balance? 13 A. To align with the annual FCA amount to be 14 recorded in the Company’s 2022 financial records, an upward 15 adjustment of $134,280 was made for the Residential 16 customer classes, reflected as the sum of lines 6 and 11, 17 column O of Exhibit No. 1. A downward adjustment of $249 18 was made for the Small General Service customer classes, 19 reflected as the sum of lines 25 and 30, column O of 20 Exhibit No. 1. The total upward adjustment for both 21 customer classes is $134,031. 22 Q. What is the total amount of the FCA, not 23 including interest? 24 GORALSKI, DI 14 Idaho Power Company A. As shown in Exhibit No. 2, the total amount of 1 the FCA for the Residential and Small General Service 2 customer classes, not including interest, is $24,715,199. 3 The calculation of the FCA uses the average annual customer 4 count and the annual billed sales amount, which are 5 included in Exhibit No. 3. The calculated FCA deferral 6 balance for the Residential customer classes, not including 7 interest, is $23,740,357. An amount of $23,740,356 is found 8 in Exhibit No. 1 when summing lines 6 and 11, column P. 9 The $1 difference between Exhibit No. 1 and Exhibit No. 2 10 is due to rounding. 11 The calculated FCA deferral balance for the Small 12 General Service customer classes, not including interest, 13 is $974,842. An amount of $974,841 is found in Exhibit No. 14 1 when summing lines 25 and 30, column P, with the 15 difference between Exhibit No. 1 and Exhibit No. 2 also due 16 to rounding. 17 Q. What is the total amount of the 2022 FCA, 18 including interest, the Company is requesting to implement 19 in rates on June 1, 2023? 20 A. The total amount of the 2022 FCA the Company 21 is requesting to begin recovering in rates on June 1, 2023, 22 is $25,065,075.31, reflected on line 42, column V, of 23 Exhibit No. 4. The FCA for the Residential classes is 24 $24,076,901.44 reflected on line 20, column V, of Exhibit 25 GORALSKI, DI 15 Idaho Power Company No. 4. The FCA for the Small General Service classes is 1 $988,173.87 reflected on line 39, column V, of Exhibit No. 2 4. Exhibit No. 4 and Exhibit No. 1 both contain the same 3 information as the FCA Report sent to the Commission each 4 month; however, Exhibit No. 4 calculates interest from 5 January 2022 through May 2023 while Exhibit No. 1 shows 6 that information only for the 2022 calendar year. 7 Q. What is the significance of these numbers with 8 respect to the Company’s recovery of its fixed costs? 9 A. Because the Residential and Small General 10 Service FCAs are positive numbers, the average UPC based on 11 actual billed sales for the year were lower than the level 12 established in the Company’s most recent general rate case 13 for both Residential and Small General Service customer 14 classes. In accordance with the approved mechanism, the 15 Residential and Small General Service classes will receive 16 a rate adjustment to allow for recovery of the fixed costs 17 that were not recovered through actual billed energy 18 charges during the year. 19 IV. CALCULATION OF THE 2023-2024 FCA RATE 20 Q. Please describe the calculation of the FCA 21 rates the Company is proposing to go into effect on June 1, 22 2023. 23 A. The FCA rates the Company proposes to go into 24 effect on June 1, 2023, were calculated by taking the FCA 25 GORALSKI, DI 16 Idaho Power Company deferral balances for each of the customer classes 1 described above and dividing by the respective class energy 2 sales forecast for the June 1, 2023, through May 31, 2024, 3 time frame. The forecasted June 1 through May 31 time frame 4 is the same period that has been used historically and is 5 also used for the Power Cost Adjustment mechanism. 6 Q. What has the Company determined the forecast 7 energy sales to be for both the Residential and Small 8 General Service classes? 9 A. The Company’s forecasted energy sales are 10 5,519,189,071 kWh for the Residential classes and 11 139,209,221 kWh for the Small General Service classes. The 12 forecasted energy sales are found in Exhibit No. 5. 13 Q. What are the corresponding FCA rates for the 14 Residential and Small General Service classes based on a 15 combined and equal FCA rate change, as defined in the 16 approved mechanism? 17 A. To recover the authorized level of fixed 18 costs, the FCA rate for the Residential classes would be 19 0.4402 cents per kWh and the corresponding rate for the 20 Small General Service classes would be 0.5541 cents per 21 kWh. The calculation of these rates is also found in 22 Exhibit No. 5. 23 On page 9 of Order No. 32505, the Commission ordered 24 that the FCA deferral balance will continue to be recovered 25 GORALSKI, DI 17 Idaho Power Company or refunded equally between the Residential and Small 1 General Service customer classes. Because the Residential 2 and Small General Service classes reduced their energy 3 consumption per customer such that the Company under-4 collected its authorized level of fixed costs as 5 established in Case No. IPC-E-11-08, each class requires a 6 rate surcharge. 7 Q. What is the difference between the FCA 8 deferral balance currently in amortization and the proposed 9 FCA deferral balance to be collected through the FCA rate? 10 A. In this filing, the Company is proposing to 11 collect rates based on an FCA deferral balance of 12 $25,065,075.31 which is $10,138,173 less than the 2021 FCA 13 deferral balance of $35,203,248. The 2021 deferral balance 14 was approved in Order No. 35410, issued in Case No. IPC-E-15 22-07, with rates based on that balance effective for the 16 period June 1, 2022, through May 31, 2023. 17 Q. Considering the current FCA rates in effect, 18 what is the percentage change in billed revenue as measured 19 from total billed amounts currently recovered from 20 Residential and Small General Service classes? 21 A. Because the 2022 FCA deferral balance is less 22 than the 2021 FCA deferral balance and annual sales for 23 June 2023 through May 31, 2024 are forecast to be slightly 24 lower than the same period in the prior year, the 2023 – 25 GORALSKI, DI 18 Idaho Power Company 2024 FCA rates represent an annual decrease of $9,976,903, 1 or 1.56 percent, from current billed revenue for the 2 affected customer classes. The percentage change in billed 3 revenue is found in Exhibit No. 6. This proposed decrease 4 results in an approximate $1.66 decrease to the monthly 5 bill of a typical residential customer using 950 kWh per 6 month. 7 Q. How will the Company incorporate the FCA 8 surcharges for the Residential and Small General Service 9 classes on customers’ bills? 10 A. The Company proposes to continue including the 11 FCA with the Fixed Cost Adjustment line item on Residential 12 and Small General Service customers’ bills. 13 V. CONCLUSION 14 Q. Please summarize the Company’s request in this 15 filing. 16 A. Idaho Power requests the Commission authorize 17 the Company to implement Fixed Cost Adjustment rates for 18 electric service from June 1, 2023, through May 31, 2024 in 19 the amount of 0.4402 cents per kWh for the Residential 20 classes, and 0.5541 cents per kWh for the Small General 21 Service classes. If approved, the 2023 – 2024 FCA rates 22 will result in a decrease to annual billed revenue for the 23 Residential and Small General Service classes of 24 $9,976,903, or 1.56 percent, effective June 1, 2023. 25 GORALSKI, DI 19 Idaho Power Company Q. Does this complete your testimony? 1 A. Yes, it does. 2 // 3 // 4 // 5 // 6 // 7 // 8 // 9 // 10 // 11 // 12 // 13 // 14 // 15 // 16 // 17 // 18 // 19 // 20 // 21 // 22 // 23 // 24 // 25 GORALSKI, DI 20 Idaho Power Company DECLARATION OF PAWEL P. GORALSKI 1 I, Pawel P. Goralski, declare under penalty of 2 perjury under the laws of the state of Idaho: 3 1. My name is Pawel P. Goralski. I am employed 4 by Idaho Power Company as a Regulatory Consultant in the 5 Regulatory Affairs Department and am competent to be a 6 witness in this proceeding. 7 2. On behalf of Idaho Power, I present this 8 pre-filed direct testimony and exhibits in this matter. 9 3. To the best of my knowledge, my pre-filed 10 direct testimony and exhibits are true and accurate. 11 I hereby declare that the above statement is true to 12 the best of my knowledge and belief, and that I understand 13 it is made for use as evidence before the Idaho Public 14 Utilities Commission and is subject to penalty for perjury. 15 SIGNED this 15th day of March 2023, at Boise, Idaho. 16 17 Signed: _________________________ 18 Pawel P. Goralski 19 20 21 22 23 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO. IPC-E-23-09 IDAHO POWER COMPANY GORALSKI, DI TESTIMONY EXHIBIT NO. 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1617 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 4142 45 46 47 48 49 50 51 52 A B C D E F G H I J K L M N O P Q Fixed Cost Adjustment Monthly Report January February March April May June July August September October November December Adjustment Current Year Total for the year ended December 31, 2022 Residential FCA (Existing Customers): Beginning Balance $0.00 5,547,427.00 8,609,926.00 10,400,330.00 14,861,545.00 16,188,905.00 18,602,804.00 18,914,273.00 16,880,803.00 15,154,962.00 18,310,530.00 21,458,252.00 23,331,785.00 Amount Deferred $5,547,427.00 3,062,499.00 1,790,404.00 4,461,215.00 1,327,360.00 2,413,899.00 311,469.00 (2,033,470.00) (1,725,841.00) 3,155,568.00 3,147,722.00 1,873,533.00 91,851.00 23,423,636.00 Ending Balance $ 5,547,427.00 8,609,926.00 10,400,330.00 14,861,545.00 16,188,905.00 18,602,804.00 18,914,273.00 16,880,803.00 15,154,962.00 18,310,530.00 21,458,252.00 23,331,785.00 23,423,636.00 23,423,636.00 Residential FCA (New Customers): Beginning Balance $0.00 43,483.00 67,828.00 84,357.00 132,101.00 147,896.00 180,860.00 185,316.00 154,089.00 125,793.00 180,507.00 238,096.00 274,291.00 Amount Deferred $43,483.00 24,345.00 16,529.00 47,744.00 15,795.00 32,964.00 4,456.00 (31,227.00) (28,296.00) 54,714.00 57,589.00 36,195.00 42,429.00 316,720.00 Ending Balance $43,483.00 67,828.00 84,357.00 132,101.00 147,896.00 180,860.00 185,316.00 154,089.00 125,793.00 180,507.00 238,096.00 274,291.00 316,720.00 316,720.00 Interest: Accrual thru Prior Month $- - 4,657.23 11,885.80 20,619.54 33,109.25 46,717.81 62,364.60 78,274.56 92,464.63 105,193.50 120,596.53 - Monthly Interest Rate (Annual 1%)0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833%Monthly Interest Inc/(Exp)$- 4,657.23 7,228.57 8,733.74 12,489.71 13,608.56 15,646.79 15,909.96 14,190.07 12,728.87 15,403.03 18,073.06 - 138,669.59 Interest Accrued to date $- 4,657.23 11,885.80 20,619.54 33,109.25 46,717.81 62,364.60 78,274.56 92,464.63 105,193.50 120,596.53 138,669.59 - 138,669.59 Total Residential FCA:5,590,910.00 8,682,411.23 10,496,572.80 15,014,265.54 16,369,910.25 18,830,381.81 19,161,953.60 17,113,166.56 15,373,219.63 18,596,230.50 21,816,944.53 23,744,745.59 23,740,356.00 23,879,025.59 Small General Service FCA (Existing Customers): Beginning Balance $157,346.00 214,197.00 276,983.00 438,395.00 504,237.00 637,732.00 737,775.00 726,042.00 748,491.00 858,375.00 923,969.00 970,421.00 Amount Deferred $157,346.00 56,851.00 62,786.00 161,412.00 65,842.00 133,495.00 100,043.00 (11,733.00) 22,449.00 109,884.00 65,594.00 46,452.00 19.00 970,440.00 Ending Balance $157,346.00 214,197.00 276,983.00 438,395.00 504,237.00 637,732.00 737,775.00 726,042.00 748,491.00 858,375.00 923,969.00 970,421.00 970,440.00 970,440.00 Small General Service FCA (New Customers): Beginning Balance $1,019.00 1,126.00 1,592.00 1,592.00 1,592.00 3,091.00 3,268.00 3,200.00 3,308.00 3,907.00 4,339.00 4,669.00 Amount Deferred $1,019.00 107.00 466.00 - - 1,499.00 177.00 (68.00) 108.00 599.00 432.00 330.00 (268.00) 4,401.00 Ending Balance $1,019.00 1,126.00 1,592.00 1,592.00 1,592.00 3,091.00 3,268.00 3,200.00 3,308.00 3,907.00 4,339.00 4,669.00 4,401.00 4,401.00 Interest: Accrual thru Prior Month $- - 131.92 311.28 543.33 909.84 1,331.20 1,865.01 2,482.30 3,089.76 3,716.01 4,434.29 - Monthly Interest Rate (Annual 1%)0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% Monthly Interest Inc/(Exp)$- 131.92 179.36 232.05 366.51 421.36 533.81 617.29 607.46 626.25 718.28 773.28 - 5,207.57 Interest Accrued to date $- 131.92 311.28 543.33 909.84 1,331.20 1,865.01 2,482.30 3,089.76 3,716.01 4,434.29 5,207.57 - 5,207.57 Total Small General Service FCA:158,365.00 215,454.92 278,886.28 440,530.33 506,738.84 642,154.20 742,908.01 731,724.30 754,888.76 865,998.01 932,742.29 980,297.57 974,841.00 980,048.57 Total Fixed Cost Adjustmen $ 5,749,275.00 8,897,866.15 10,775,459.08 15,454,795.87 16,876,649.09 19,472,536.01 19,904,861.61 17,844,890.86 16,128,108.39 19,462,228.51 22,749,686.82 24,725,043.16 24,715,197.00 24,859,074.16 Entries: 599 X00001 999 182302 (254302) 5,749,275.00 3,148,591.15 1,877,592.93 4,679,336.79 1,421,853.22 2,595,886.92 432,325.60 (2,059,970.75) (1,716,782.47) 3,334,120.12 3,287,458.31 1,975,356.34 134,031.00 24,859,074.16 - 599 X00001 999 440301 (5,590,910.00) (3,086,844.00) (1,806,933.00) (4,508,959.00) (1,343,155.00) (2,446,863.00) (315,925.00) 2,064,697.00 1,754,137.00 (3,210,282.00) (3,205,311.00) (1,909,728.00) (134,280.00) (23,740,356.00) - 599 X00001 999 442301 (158,365.00) (56,958.00) (63,252.00) (161,412.00) (65,842.00) (134,994.00) (100,220.00) 11,801.00 (22,557.00) (110,483.00) (66,026.00) (46,782.00) 249.00 (974,841.00) - 599 X00001 999 421006 (431013)- (4,789.15) (7,407.93) (8,965.79) (12,856.22) (14,029.92) (16,180.60) (16,527.25) (14,797.53) (13,355.12) (16,121.31) (18,846.34) - (143,877.16) - Exhibit No. 1 Case No. IPC-E-23-09 P. Goralski, IPC Page 1 of 1 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO. IPC-E-23-09 IDAHO POWER COMPANY GORALSKI, DI TESTIMONY EXHIBIT NO. 2 2022 Annual Fixed Cost Adjustment Deferral Calculation Residential Customer Count 498,648.41               Billed Sales in kWh 5,820,768,17          UPC 11,673.09                 Existing New Total  Customer Count 485,210.88               13,437.53                 498,648.41                FCC $650.63 $317.72 Authorized Recovery Amount $315,692,755 $4,269,373 $319,962,127 Billed Sales in kWh 5,663,910,650         156,857,526             5,820,768,176          FCE $0.051602 $0.025199 Actual Recovery Amount $292,269,117 $3,952,653 $296,221,770 Residential FCA $23,423,638 $316,720 $23,740,357 Small General Service Customer Count 29,793.89                 Billed Sales in kWh 142,295,255             UPC 4,775.99                    Existing New Total  Customer Count 29,604.99                 188.90                       29,793.89                  FCC $360.57 $256.29 Authorized Recovery Amount $10,674,670 $48,414 $10,723,084 Billed Sales in kWh 141,393,059             902,196                     142,295,255              FCE $0.068633 $0.048783 Actual Recovery Amount $9,704,230 $44,012 $9,748,242 Small General Service FCA $970,440 $4,402 $974,842 Total FCA $24,394,078 $321,122 $24,715,199 Exhibit No. 2 Case No. IPC-E-23-09 P. Goralski, IPC Page 1 of 1 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO. IPC-E-23-09 IDAHO POWER COMPANY GORALSKI, DI TESTIMONY EXHIBIT NO. 3 Month Customer Count Billed Sales January 492,999.11           608,939,044         February 493,109.32           589,890,431         March 494,383.81           527,194,336         April 495,844.42           399,640,867         May 497,034.52           375,108,898         June 498,779.45           355,807,050         July 499,425.10           468,142,383         August 500,469.10           603,986,064         September 501,501.36           536,680,521         October 502,438.95           355,626,530         November 503,389.39           409,036,150         December 504,406.41           590,715,902         498,648.41           5,820,768,176      Month Customer Count Billed Sales January 29,874.81             13,847,800            February 29,683.69             13,994,046            March 29,914.30             12,578,116            April 29,501.64             10,028,422            May 29,536.01             9,687,778              June 30,072.72             9,551,140              July 29,678.60             11,370,093            August 29,846.57             13,828,657            September 29,806.14             12,798,487            October 29,832.06             10,140,134            November 29,879.12             10,646,645            December 29,901.01             13,823,937            29,793.89             142,295,255         2022 Monthly Customer Count and Billed Sales Annual Average  Customer Count Total Annual  Billed Sales Annual Average  Customer Count Total Annual  Billed Sales Residential Customer Classes Small General Service Customer Classes Exhibit No. 3 Case No. IPC-E-23-09 P. Goralski, IPC Page 1 of 1 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO. IPC-E-23-09 IDAHO POWER COMPANY GORALSKI, DI TESTIMONY EXHIBIT NO. 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 45 46 47 48 49 50 51 52 A B C D E F G H I J K L M N O P Q R S T U V Fixed Cost Adjustment Monthly Repo January February March April May June July August September October November December Adjustment Current Year Total January February March April May Grand Total for the year ended December 31, 2022 Residential FCA (Existing Customers) Beginning Balance $0.00 5,547,427.00 8,609,926.00 10,400,330.00 14,861,545.00 16,188,905.00 18,602,804.00 18,914,273.00 16,880,803.00 15,154,962.00 18,310,530.00 21,458,252.00 23,331,785.00 23,423,636.00 23,423,636.00 23,423,636.00 23,423,636.00 23,423,636.00 Amount Deferred $5,547,427.00 3,062,499.00 1,790,404.00 4,461,215.00 1,327,360.00 2,413,899.00 311,469.00 (2,033,470.00) (1,725,841.00) 3,155,568.00 3,147,722.00 1,873,533.00 91,851.00 23,423,636.00 - - - - - 23,423,636.00 Ending Balance $ 5,547,427.00 8,609,926.00 10,400,330.00 14,861,545.00 16,188,905.00 18,602,804.00 18,914,273.00 16,880,803.00 15,154,962.00 18,310,530.00 21,458,252.00 23,331,785.00 23,423,636.00 23,423,636.00 23,423,636.00 23,423,636.00 23,423,636.00 23,423,636.00 23,423,636.00 Residential FCA (New Customers) Beginning Balance $0.00 43,483.00 67,828.00 84,357.00 132,101.00 147,896.00 180,860.00 185,316.00 154,089.00 125,793.00 180,507.00 238,096.00 274,291.00 316,720.00 316,720.00 316,720.00 316,720.00 316,720.00 Amount Deferred $43,483.00 24,345.00 16,529.00 47,744.00 15,795.00 32,964.00 4,456.00 (31,227.00) (28,296.00) 54,714.00 57,589.00 36,195.00 42,429.00 316,720.00 - - - - - 316,720.00 Ending Balance $43,483.00 67,828.00 84,357.00 132,101.00 147,896.00 180,860.00 185,316.00 154,089.00 125,793.00 180,507.00 238,096.00 274,291.00 316,720.00 316,720.00 316,720.00 316,720.00 316,720.00 316,720.00 316,720.00 Interest: Accrual thru Prior Month $- - 4,657.23 11,885.80 20,619.54 33,109.25 46,717.81 62,364.60 78,274.56 92,464.63 105,193.50 120,596.53 - 138,669.59 178,244.76 217,819.93 257,395.10 296,970.27 Monthly Interest Rate (Annual 1% for 2022, 2% for 2023)0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833%0.1667% 0.1667% 0.1667% 0.1667% 0.1667% Monthly Interest Inc/(Exp)$- 4,657.23 7,228.57 8,733.74 12,489.71 13,608.56 15,646.79 15,909.96 14,190.07 12,728.87 15,403.03 18,073.06 - 138,669.59 39,575.17 39,575.17 39,575.17 39,575.17 39,575.17 336,545.44 Interest Accrued to date $- 4,657.23 11,885.80 20,619.54 33,109.25 46,717.81 62,364.60 78,274.56 92,464.63 105,193.50 120,596.53 138,669.59 - 138,669.59 178,244.76 217,819.93 257,395.10 296,970.27 336,545.44 Total Residential FCA 5,590,910.00 8,682,411.23 10,496,572.80 15,014,265.54 16,369,910.25 18,830,381.81 19,161,953.60 17,113,166.56 15,373,219.63 18,596,230.50 21,816,944.53 23,744,745.59 23,740,356.00 23,879,025.59 39,575.17 39,575.17 39,575.17 39,575.17 39,575.17 24,076,901.44 Small General Service FCA (Existing Customers) Beginning Balance $157,346.00 214,197.00 276,983.00 438,395.00 504,237.00 637,732.00 737,775.00 726,042.00 748,491.00 858,375.00 923,969.00 970,421.00 970,440.00 970,440.00 970,440.00 970,440.00 970,440.00 Amount Deferred $157,346.00 56,851.00 62,786.00 161,412.00 65,842.00 133,495.00 100,043.00 (11,733.00) 22,449.00 109,884.00 65,594.00 46,452.00 19.00 970,440.00 - - - - - 970,440.00 Ending Balance $157,346.00 214,197.00 276,983.00 438,395.00 504,237.00 637,732.00 737,775.00 726,042.00 748,491.00 858,375.00 923,969.00 970,421.00 970,440.00 970,440.00 970,440.00 970,440.00 970,440.00 970,440.00 970,440.00 Small General Service FCA (New Customers) Beginning Balance $1,019.00 1,126.00 1,592.00 1,592.00 1,592.00 3,091.00 3,268.00 3,200.00 3,308.00 3,907.00 4,339.00 4,669.00 4,401.00 4,401.00 4,401.00 4,401.00 4,401.00 Amount Deferred $1,019.00 107.00 466.00 - - 1,499.00 177.00 (68.00) 108.00 599.00 432.00 330.00 (268.00) 4,401.00 - - - - - 4,401.00 Ending Balance $1,019.00 1,126.00 1,592.00 1,592.00 1,592.00 3,091.00 3,268.00 3,200.00 3,308.00 3,907.00 4,339.00 4,669.00 4,401.00 4,401.00 4,401.00 4,401.00 4,401.00 4,401.00 4,401.00 Interest: Accrual thru Prior Month $- - 131.92 311.28 543.33 909.84 1,331.20 1,865.01 2,482.30 3,089.76 3,716.01 4,434.29 - 5,207.57 6,832.63 8,457.69 10,082.75 11,707.81 Monthly Interest Rate (Annual 1% for 2022, 2% for 2023)0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833% 0.0833%0.1667% 0.1667% 0.1667% 0.1667% 0.1667% Monthly Interest Inc/(Exp)$- 131.92 179.36 232.05 366.51 421.36 533.81 617.29 607.46 626.25 718.28 773.28 - 5,207.57 1,625.06 1,625.06 1,625.06 1,625.06 1,625.06 13,332.87 Interest Accrued to date $- 131.92 311.28 543.33 909.84 1,331.20 1,865.01 2,482.30 3,089.76 3,716.01 4,434.29 5,207.57 - 5,207.57 6,832.63 8,457.69 10,082.75 11,707.81 13,332.87 Total Small General Service FCA 158,365.00 215,454.92 278,886.28 440,530.33 506,738.84 642,154.20 742,908.01 731,724.30 754,888.76 865,998.01 932,742.29 980,297.57 974,841.00 980,048.57 1,625.06 1,625.06 1,625.06 1,625.06 1,625.06 988,173.87 Total Fixed Cost Adjustmen $ 5,749,275.0 8,897,866.1 10,775,459.0 15,454,795.8 16,876,649.0 19,472,536.01 19,904,861.61 17,844,890.8 16,128,108.3 19,462,228.51 22,749,686.8 24,725,043.1 24,715,197.0 24,859,074.1 41,200.2 41,200.2 41,200.2 41,200.2 41,200.2 25,065,075.31 Entries: 599 X00001 999 182302 (254302) 5,749,275.00 3,148,591.15 1,877,592.93 4,679,336.79 1,421,853.22 2,595,886.92 432,325.60 (2,059,970.75) (1,716,782.47) 3,334,120.12 3,287,458.31 1,975,356.34 134,031.00 24,859,074.16 41,200.23 41,200.23 41,200.23 41,200.23 41,200.23 599 X00001 999 440301 (5,590,910.00) (3,086,844.00) (1,806,933.00) (4,508,959.00) (1,343,155.00) (2,446,863.00) (315,925.00) 2,064,697.00 1,754,137.00 (3,210,282.00) (3,205,311.00) (1,909,728.00) (134,280.00) (23,740,356.00) - - - - - 599 X00001 999 442301 (158,365.00) (56,958.00) (63,252.00) (161,412.00) (65,842.00) (134,994.00) (100,220.00) 11,801.00 (22,557.00) (110,483.00) (66,026.00) (46,782.00) 249.00 (974,841.00) - -- -- 599 X00001 999 421006 (431013)- (4,789.15) (7,407.93) (8,965.79) (12,856.22) (14,029.92) (16,180.60) (16,527.25) (14,797.53) (13,355.12) (16,121.31) (18,846.34) - (143,877.16) (41,200.23) (41,200.23) (41,200.23) (41,200.23) (41,200.23) Exhibit No. 4 Case No. IPC-E-23-09 P. Goralski, IPC Page 1 of 1 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO. IPC-E-23-09 IDAHO POWER COMPANY GORALSKI, DI TESTIMONY EXHIBIT NO. 5 FCA Rate Determination Target Normalized Base FCA Dollars Percent Diff Combined Option ‐ Different Rates FCA Dollars Energy Revenue Collected Over/Under from Base Rate Residential $24,076,901.44 5,519,189,071 $510,688,849 $24,293,752.96 $216,851.52 4.76%0.004402 Small General Service $988,173.87 139,209,221 $16,214,281 $771,322.35 ($216,851.52)4.76%0.005541 Combined $25,065,075.31 5,658,398,292 $526,903,129 $25,065,075.31 $0.00 4.76% Existing FCA Balance per Order No. 35410 $35,203,248 Proposed 2022 FCA Deferral Balance $25,065,075 FCA Annual Increase (Decrease)($10,138,173) Forecasted Base Rate Revenue $526,903,129 ‐1.92%Annual FCA Difference Percentage of Base Rate Revenue Exhibit No. 5 Case No. IPC-E-23-09 P. Goralski, IPC Page 1 of 1 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO. IPC-E-23-09 IDAHO POWER COMPANY GORALSKI, DI TESTIMONY EXHIBIT NO. 6 Total Percent Rate Average Normalized Current Adjustments Proposed Change Line Sch. Number of Energy Billed Mills to Billed Total Billed Mills Billed to Billed No Tariff Description No.Customers (kWh) Revenue Per kWh Revenue Revenue Per kWh Revenue Uniform Tariff Rates: 1 Residential Service 1 494,984 5,417,430,195 $609,518,821 112.51 ($9,485,920) $600,032,900 110.76 (1.56)% 2 Master Metered Mobile Home Park 3 19 4,487,098 $481,814 107.38 ($7,857) $473,957 105.63 (1.63)% 3 Residential Service Energy Watch 4 0 0 $0 0.00 $0 $0 0.00 0.00% 4 Residential Service Time-of-Day 5 986 16,989,421 $1,838,909 108.24 ($29,748) $1,809,160 106.49 (1.62)% 5 Residential Service On-Site Generation 6 14,270 80,282,357 $9,487,053 118.17 ($140,574) $9,346,479 116.42 (1.48)% 510,259 5,519,189,071 $621,326,596 112.58 ($9,664,100) $611,662,495 110.82 (1.56)% 6 Small General Service 7 30,601 138,996,671 $19,198,510 138.12 ($312,326) $18,886,184 135.88 (1.63)% 7 Small General Service On-Site Generation 8 93 212,550 $32,230 151.63 ($478) $31,752 149.39 (1.48)% 30,694 139,209,221 $19,230,739 138.14 ($312,803) $18,917,936 135.90 (1.63)% 8 Total Residential and Small General Service 540,953 5,658,398,29 $640,557,335 113.20 ($9,976,903) $630,580,432 111.44 (1.56)% (1) June 01, 2023 ‐ May 31, 2024 Forecasted Test Year (Spring 2023 Forecast Summary of Revenue Impact Current Billed Revenue to Proposed Billed Revenue Idaho Power Company Calculation of Revenue Impact State of Idaho Fixed Cost Adjustment Filed March 15, 2023 Exhibit No. 6 Case No. IPC-E-23-09 P. Goralski, IPC Page 1 of 1