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Home My WebLink About20260128Compliance Filing.pdf E.Ah— IQAHO Ro RECEIVED GRANT T.ANDERSON JANUARY 28, 2026 Pricing and Tariff Manager IDAHO PUBLIC ganderson(cD_idahopower.com UTILITIES COMMISSION January 28, 2026 VIA ELECTRONIC FILING Commission Secretary Idaho Public Utilities Commission 11331 W. Chinden Blvd., Bldg 8, Suite 201-A (83714) PO Box 83720 Boise, Idaho 83720-0074 Re: Case No. IPC-E-25-22 Idaho Power Company's Application for Authority to Update its Operation and Maintenance Charges Applicable to Schedule 72, Generator Interconnections to PURPA Qualifying Facility Sellers Dear Commission Secretary: Idaho Power Company ("Idaho Power or Company") hereby submits the attached tariff sheets in the above-captioned proceeding, pursuant to Idaho Public Utilities Commission Order No. 36894. These sheets reflect the Company's as-filed modifications to Schedule 72, Generator Interconnection to PURPA Qualifying Facility sellers, updated with the errata as approved by Commission Order No. 36894, effective January 1, 2026. The following tariff sheets are submitted for Commission approval: Second Revised Sheet No. 72-12 Cancelling First Revised Sheet No. 72-12 Second Revised Sheet No. 72-13 Cancelling First Revised Sheet No. 72-13 If you have any questions about the attached documents, please contact Regulatory Analyst, Sarah Hall at (208) 388-5861 or shall idahopower.com. Sincerely, Grant T. Anderson GA:sg Attachments Idaho Power Company Second Revised Sheet No. 72-12 Cancels I.P.U.C. No. 30, Tariff No. 101 First Revised Sheet No. 72-12 SCHEDULE 72 GENERATOR INTERCONNECTIONS TO PURPA QUALIFYING FACILITY SELLERS (Continued) SECTION 2: INTERCONNECTION OF GENERATION FACILITIES (Continued) VESTED INTEREST (Continued) B = Distance Ratio: The length of jointly used Special Facilities divided by the length of the vested Special Facilities. C = Original Interconnection Cost: the sum of the Company's Construction Cost and any Transfer Costs for the Interconnection Facilities to which the Additional Applicant intends to connect and share usage. Option Two — An Additional Applicant may choose to pay the current Vested Interest, in which case the Vested Interest will transfer to the Additional Applicant and, as such, the Additional Applicant will hold the Vested Interest and be eligible to receive Vested Interest refunds. If Option One is selected, the Additional Applicant has no Vested Interest and the previous Vested Interest holder remains the Vested Interest holder. The Vested Interest holder's Vested Interest will be reduced by the newest Additional Applicant's payment. 3. The Additional Applicant will pay the Company the amount of the Vested Interest refund(s). 4. The Seller, person or entity holding a Vested Interest will be eligible to receive refunds up to 80 percent of their original interconnection cost. Additional Applicants that become Vested Interest holders will be eligible to receive refunds up to their total contribution less 20 percent of the original interconnection cost. Vested Interest refunds will be funded by no more than 4 Additional Applicants during the 5-year period following the date the Company completes construction of its portion of the Interconnection Facilities. 5. In no circumstance will Vested Interest refunds exceed 100 percent of the refundable portion of any party's cash payment to the Company. 6. Vested Interest refund payments may be waived by notifying the Company in writing. 7. All existing agreements' refund provisions will be governed and administered under the provisions in effect at the time the agreement was entered into between the Company and Seller or Additional Applicant. OPERATION AND MAINTENANCE OBLIGATIONS AND EXPENSES The Company will operate and maintain Company furnished Interconnection Facilities, as well as any Seller-Furnished Facilities transferred to the Company. Seller will pay the Company a monthly operation and maintenance charge equal to a percentage of the Construction Cost and Transfer Cost paid by the Seller. The monthly percentage charged will be as follows: IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. 36894 Timothy E. Tatum, Vice President, Regulatory Affairs Effective — January 1, 2026 1221 West Idaho Street, Boise, Idaho Idaho Power Company Second Revised Sheet No. 72-13 Cancels I.P.U.C. No. 30, Tariff No. 101 First Revised Sheet No. 72-13 SCHEDULE 72 GENERATOR INTERCONNECTIONS TO PURPA QUALIFYING FACILITY SELLERS (Continued) SECTION 2: INTERCONNECTION OF GENERATION FACILITIES (Continued) Facilities rated 138 kV and above: 0.26% Facilities rated below 138 kV: 0.90% The cost upon which an individual Seller's operation and maintenance charge is based will be reduced by subsequent Vested Interest refunds. Additional Applicants who are Sellers will pay the monthly operation and maintenance charge on the amount they paid as an Additional Applicant. Seller-Furnished Facilities not transferred to the Company will be operated and maintained by the Seller at the Seller's sole risk and expense. The monthly operating and maintenance charges stated above will be applied as a percentage of the applicable original interconnection investment. IDAHO Issued by IDAHO POWER COMPANY Issued per Order No. 36894 Timothy E. Tatum, Vice President, Regulatory Affairs Effective — January 1, 2026 1221 West Idaho Street, Boise, Idaho Idaho Power Company First Second Revised Sheet No. 72-12 Cancels I.P.U.C. No. 30, Tariff No. 10104g+ga-First Revised Sheet No. 72-12 SCHEDULE 72 GENERATOR INTERCONNECTIONS TO PURPA QUALIFYING FACILITY SELLERS (Continued) SECTION 2: INTERCONNECTION OF GENERATION FACILITIES (Continued) VESTED INTEREST (Continued) B = Distance Ratio: The length of jointly used Special Facilities divided by the length of the vested Special Facilities. C = Original Interconnection Cost: the sum of the Company's Construction Cost and any Transfer Costs for the Interconnection Facilities to which the Additional Applicant intends to connect and share usage. Option Two — An Additional Applicant may choose to pay the current Vested Interest, in which case the Vested Interest will transfer to the Additional Applicant and, as such, the Additional Applicant will hold the Vested Interest and be eligible to receive Vested Interest refunds. If Option One is selected, the Additional Applicant has no Vested Interest and the previous Vested Interest holder remains the Vested Interest holder. The Vested Interest holder's Vested Interest will be reduced by the newest Additional Applicant's payment. 3. The Additional Applicant will pay the Company the amount of the Vested Interest refund(s). 4. The Seller, person or entity holding a Vested Interest will be eligible to receive refunds up to 80 percent of their original interconnection cost. Additional Applicants that become Vested Interest holders will be eligible to receive refunds up to their total contribution less 20 percent of the original interconnection cost. Vested Interest refunds will be funded by no more than 4 Additional Applicants during the 5-year period following the date the Company completes construction of its portion of the Interconnection Facilities. 5. In no circumstance will Vested Interest refunds exceed 100 percent of the refundable portion of any party's cash payment to the Company. 6. Vested Interest refund payments may be waived by notifying the Company in writing. 7. All existing agreements' refund provisions will be governed and administered under the provisions in effect at the time the agreement was entered into between the Company and Seller or Additional Applicant. OPERATION AND MAINTENANCE OBLIGATIONS AND EXPENSES The Company will operate and maintain Company furnished Interconnection Facilities, as well as any Seller-Furnished Facilities transferred to the Company. Seller will pay the Company a monthly operation and maintenance charge equal to a percentage of the Construction Cost and Transfer Cost paid by the Seller. The monthly percentage w&chanrrged aRR pally OR the onniVersary of the Forst ERerg Date in annnrdanno with the following tab will be as follows: IDAHO Issued by IDAHO POWER COMPANY Issued per Order No._�a236894 Timothy E. Tatum, Vice President, Regulatory Affairs Effective—June 24, 2025January 1, 2026 1221 West Idaho Street, Boise, Idaho Idaho Power Company Forst Second Revised Sheet No. 72-13 Cancels I.P.U.C. No. 30, Tariff No. 1019r+g+rLFirst Revised Sheet No. 72-13 SCHEDULE 72 GENERATOR INTERCONNECTIONS TO PURPA QUALIFYING FACILITY SELLERS (Continued) SECTION 2: INTERCONNECTION OF GENERATION FACILITIES (Continued) Facilities rated 138 kV and above: 0.26% Facilities rated below 138 kV: 0.90% The cost upon which an individual Seller's operation and maintenance charge is based will be reduced by subsequent Vested Interest refunds. Additional Applicants who are Sellers will pay the month) operation and maintenance charge on the amount they paid as an Additional Applicant. Seller-Furnished Facilities not transferred to the Company will be operated and maintained by the Seller at the Seller's sole risk and expense. TABLE 1: MONTHLY OPERATION AND MAINTENANCE CHARGES FOR 138 kV and 161 L\/ Yea-r 4 2 3 4 5 6 7 8 9 40 44 42 O&M GhaFqe ems% 0.27% 0.28% 9.29% 0.30% 9.32% 0.33% 0.35 a e-3% 9.39% 0.40 a e.41°6 Year 43 44 45 -1-6 47 48 49 2-0 24 22 23 24 O&M Charge8 43% ems% 0:47% 0:49% a�/O 9-540% e36,0/4 9.59% off% 9.640% J-�4 e�e�O Year 25 26 27 29 29 30 34 32 33 34 36$ Q&n n Chargee�z% e4e% e..84% ems% era 0.96% a.0"o a-.04% a e9% e:4e% TABLE 2: MONTHLY OPERATING AND MAINTENANCE CHARGES BELOW 138 L\/ Year 4 2 3 4 5 6 7 9 9 49 44 42 Q&M Charge 0.47% 0.499; 9.52% e-5409; e360% 03909% 9-6°% e.649; 8-6% ewe% 9.739; 97% Year 43 44 45 46 47 48 49 20 24 22 23 24 O&M Charge 9.80% 0..94% 9.87% 0.91% 0.95% 1.00% 1-94% 1.as% 1.14% a.19% a.24% 1.30% Yeas 25 26 27 28 29 39 34 32 33 34 35 36* Qg_n n Charge a�°6 �4�°6 -'�4 % 4--55% 4-15, % 9% 4-7 % 4-a5% 4-9 % 2L.9 % 24 % ems&% The monthly operating and maintenance charges stated above in Table 1 and Table 2 will be applied as a percentage of the applicable original interconnection investment. Thee menthl„ operating 0 fer Table 1 and n 70 fer Table 2 Seller'sWhere a nteFGenneGtion will be GOMputed at the appliGable levelized rate designated at 36+ years. IDAHO Issued by IDAHO POWER COMPANY Issued per Order No.- 3665236894 Timothy E. Tatum, Vice President, Regulatory Affairs Effective— June 24, 2025January 1, 2026 1221 West Idaho Street, Boise, Idaho Idaho Power Company Forst Second Revised Sheet No. 72-13 Cancels I.P.U.C. No. 30, Tariff No. 10104gi a-First Revised Sheet No. 72-13 IDAHO Issued by IDAHO POWER COMPANY Issued per Order No._ 236894 Timothy E. Tatum, Vice President, Regulatory Affairs Effective— J 24, 2025January 1, 2026 1221 West Idaho Street, Boise, Idaho