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Home My WebLink About202507312025 Idaho PGA Exhibit A - Proposed Tariffs.pdf AVISTA UTILITIES Case No. AVU-G-25-07 EXHIBIT "A" Proposed Tariff Sheets Thirty-Fifth Revision Sheet 150 Replacing I.P.U.C. No.27 Thirty-Fourth Revision Sheet 150 150 AVISTA CORPORATION d/b/a Avista Utilities SCHEDULE 150 PURCHASE GAS COST ADJUSTMENT - IDAHO APPLICABLE: To Customers in the State of Idaho where Company has natural gas service available. PURPOSE: To pass through changes in costs resulting from purchasing and transporting natural gas, to become effective as noted below. RATE: (a) The retail rates of firm gas Schedules 101, 111 and 112 are to be increased by 31.1280 per therm in all blocks of these rate schedules. (b) The rates of interruptible Schedules 131 and 132 are to be increased by 21.1480 per therm. (c) The rate for transportation under Schedule 146 is to be decreased by 0.0000 per therm. WEIGHTED AVERAGE GAS COST: The above rate changes are based on the following weighted average cost of gas per therm as of the effective date shown below: Demand Commodity Total Schedules 101 9.9800 21.1480 31.1280 Schedules 111 and 112 9.9800 21.1480 31.1280 Schedules 131 and 132 0.0000 21.1480 21.1480 The above amounts include a gross revenue factor. Demand Commodity Total Schedules 101 9.9370 21.0560 30.9930 Schedules 111 and 112 9.9370 21.0560 30.9930 Schedules 131 and 132 0.0000 21.0560 21.0560 The above amounts do not include a gross revenue factor. BALANCING ACCOUNT: The Company will maintain a Purchase Gas Adjustment (PGA) Balancing Account whereby monthly entries into this Balancing Account will be made to reflect differences between the actual purchased gas costs collected from customers and the actual purchased gas costs incurred by the Company. Those differences are then collected from or refunded to customers under Schedule 155 — Gas Rate Adjustment. Issued July 31,2025 Effective November 1, 2025 Issued by Avista Utilities By Patrick Ehrbar— Director of Regulatory Affairs (;C&A� Thirty-Fourth Revision Sheet 150 Replacing I.P.U.C. No.27 Thirty-Third Revision Sheet 150 150 AVISTA CORPORATION d/b/a Avista Utilities SCHEDULE 150 PURCHASE GAS COST ADJUSTMENT - IDAHO APPLICABLE: To Customers in the State of Idaho where Company has natural gas service available. PURPOSE: To pass through changes in costs resulting from purchasing and transporting natural gas, to become effective as noted below. RATE: (a) The retail rates of firm gas Schedules 101, 111 and 112 are to be increased by 32.8450 per therm in all blocks of these rate schedules. (b) The rates of interruptible Schedules 131 and 132 are to be increased by 23� per therm. (c) The rate for transportation under Schedule 146 is to be decreased by 0.0000 per therm. WEIGHTED AVERAGE GAS COST: The above rate changes are based on the following weighted average cost of gas per therm as of the effective date shown below: Demand Commodity Total Schedules 101 8.9950 23.9500 32.8450 Schedules 111 and 112 6995023.8500 32.8450 Schedules 131 and 132 0.0000 23.8500 23.R�0 The above amounts include a gross revenue factor. Demand Commodity Total Schedules 101 6.96T023.7600 32.721r0 Schedules 111 and 112 6.9610 23.7600 32.7210 Schedules 131 and 132 0.0000 23..7600 23.7600 The above amounts do not include a gross revenue factor. BALANCING ACCOUNT: The Company will maintain a Purchase Gas Adjustment (PGA) Balancing Account whereby monthly entries into this Balancing Account will be made to reflect differences between the actual purchased gas costs collected from customers and the actual purchased gas costs incurred by the Company. Those differences are then collected from or refunded to customers under Schedule 155 — Gas Rate Adjustment. Issued July 31,2024 Effective November 1, 2024 Issued by Avista Utilities By Patrick Ehrbar— Director of Regulatory Affairs (;C&A� Thirty-Fifth Revision Sheet 150 Replacing I.P.U.C. No.27 Thirty-Fourth Revision Sheet 150 150 AVISTA CORPORATION d/b/a Avista Utilities SCHEDULE 150 PURCHASE GAS COST ADJUSTMENT - IDAHO APPLICABLE: To Customers in the State of Idaho where Company has natural gas service available. PURPOSE: To pass through changes in costs resulting from purchasing and transporting natural gas, to become effective as noted below. RATE: (a) The retail rates of firm gas Schedules 101, 111 and 112 are to be increased by 31.128� per therm in all blocks of these rate schedules. (b) The rates of interruptible Schedules 131 and 132 are to be increased by 21.148� per therm. (c) The rate for transportation under Schedule 146 is to be decreased by 0.0000 per therm. WEIGHTED AVERAGE GAS COST: The above rate changes are based on the following weighted average cost of gas per therm as of the effective date shown below: Demand Commodity Total Schedules 101 9.9800 21.148¢ 31.1280 Schedules 111 and 112 9.9800 21.1480 31.1280 Schedules 131 and 132 0.0000 21.1480 21.1480 The above amounts include a gross revenue factor. Demand Commodity Total Schedules 101 9.9370 21.0560 30.9930 Schedules 111 and 112 9.9370 21.056� 30.9930 Schedules 131 and 132 0.0000 21.0560 21.0560 The above amounts do not include a gross revenue factor. BALANCING ACCOUNT: The Company will maintain a Purchase Gas Adjustment (PGA) Balancing Account whereby monthly entries into this Balancing Account will be made to reflect differences between the actual purchased gas costs collected from customers and the actual purchased gas costs incurred by the Company. Those differences are then collected from or refunded to customers under Schedule 155 — Gas Rate Adjustment. Issued July 31,2025 Effective November 1, 2025 Issued by Avista Utilities By Patrick Ehrbar— Director of Regulatory Affairs (;C&A� Twenty-Seventh Revision Sheet 155 Canceling I.P.U.C. No.27 Twenty-Sixth Revision Sheet 155 155 AVISTA CORPORATION d/b/a Avista Utilities SCHEDULE 155 GAS RATE ADJUSTMENT - IDAHO AVAILABLE: To Customers in the State of Idaho where Company has natural gas service available. PURPOSE: To adjust gas rates for amounts generated by the sources listed below. MONTHLY RATE: (a) The rates of firm gas Schedules 101 and 111 are to be decreased by 6.2780 per therm in all blocks of these rate schedules. (b) The rate of interruptible gas Schedule 131 is to be decreased by 0.0000 per therm. (c) The rate of transportation gas Schedule 146 is to be decreased by 0.0000 per therm. SOURCES OF MONTHLY RATE: Changes in the monthly rates above result from amounts which have been accumulated in the Purchase Gas Adjustment (PGA) Balancing Account as described in Schedule 150 — Purchase Gas Cost Adjustment. SPECIAL TERMS AND CONDITIONS: The above Monthly Rate is subject to the provisions of Tax Adjustment Schedule 158. Issued July 31, 2025 Effective November 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Twenty-Sixth Revision Sheet 155 Canceling I.P.U.C. No.27 Twenty-Fifth Revision Sheet 155 155 AVISTA CORPORATION d/b/a Avista Utilities SCHEDULE 155 GAS RATE ADJUSTMENT - IDAHO AVAILABLE: To Customers in the State of Idaho where Company has natural gas service available. PURPOSE: To adjust gas rates for amounts generated by the sources listed below. MONTHLY RATE: (a) The rates of firm gas Schedules 101 and 111 are to be decreased by 1.7340 per therm in all blocks of these rate schedules. (b) The rate of interruptible gas Schedule 131 is to be decreased by 0.0000 per therm. (c) The rate of transportation gas Schedule 146 is to be decreased by 0.0000 per therm. SOURCES OF MONTHLY RATE: Changes in the monthly rates above result from amounts which have been accumulated in the Purchase Gas Adjustment (PGA) Balancing Account as described in Schedule 150 — Purchase Gas Cost Adjustment. SPECIAL TERMS AND CONDITIONS: The above Monthly Rate is subject to the provisions of Tax Adjustment Schedule 158. Issued July 31, 2024 Effective November 1, 2024 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs Twenty-Seventh Revision Sheet 155 Canceling I.P.U.C. No.27 Twenty-Sixth Revision Sheet 155 155 AVISTA CORPORATION d/b/a Avista Utilities SCHEDULE 155 GAS RATE ADJUSTMENT - IDAHO AVAILABLE: To Customers in the State of Idaho where Company has natural gas service available. PURPOSE: To adjust gas rates for amounts generated by the sources listed below. MONTHLY RATE: (a) The rates of firm gas Schedules 101 and 111 are to be decreased by 6.2780 per therm in all blocks of these rate schedules. (b) The rate of interruptible gas Schedule 131 is to be decreased by 0.0000 per therm. (c) The rate of transportation gas Schedule 146 is to be decreased by 0.0000 per therm. SOURCES OF MONTHLY RATE: Changes in the monthly rates above result from amounts which have been accumulated in the Purchase Gas Adjustment (PGA) Balancing Account as described in Schedule 150 — Purchase Gas Cost Adjustment. SPECIAL TERMS AND CONDITIONS: The above Monthly Rate is subject to the provisions of Tax Adjustment Schedule 158. Issued July 31, 2025 Effective November 1, 2025 Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs