Idaho Public Utilities Commission

The commission reviewed multiple agenda items, including tariff revisions for Teton Water and Sewer Company, LLC and weatherization service tariff changes for Rocky Mountain Power. Additionally, authorization for a rate increase for CDS Stoneridge Utilities, LLC and an accounting order for Rocky Mountain Power were addressed. A significant portion of the meeting focused on Idaho Power Company's application for the 2032 All-Source Request for Proposals. The commission discussed and established a procedural schedule for public comments, cross-reply comments, and company reply comments to ensure efficient processing of the solicitation.

The Commission addressed Tariff Advice No. PAC-TAE-26-01 submitted by Rocky Mountain Power d/b/a PacifiCorp concerning modifications to Schedule 21 regarding Low-Income Weatherization Services. Key proposed changes included increasing the minimum administrative fee from $50 to $100 per job, raising maximum administrative payments for each tier, requiring energy education services for program participation, and shifting the annual program cycle to align with state agency schedules effective July 1, 2026. The Commission reviewed the staff's recommendation and approved the Company's revised tariff as filed, effective July 1, 2026.

The meeting addressed several key items categorized under the Consent Agenda and Fully Submitted Matters. The Consent Agenda involved action items related to Idaho Power Company's application for a prudence determination of Hells Canyon Complex Relicensing Costs, Raft River Rural Electric Co-op Inc.'s application for approval of its Wildfire Mitigation Plan, and Avista Corporation's application to increase its Schedule 91 Energy Efficiency Tariff Rider Adjustment. The Fully Submitted Matters scheduled for deliberation included Idaho Power Company's applications for a Certificate of Public Convenience and Necessity for the Bennett Gas Expansion Project, approval of a Power Purchase Agreement with Blacks Creek Energy Center, LLC, and approval of a Special Contract and Tariff Schedule 28 for electric service to Micron Idaho Semiconductor Manufacturing (Triton) LLC.

This document details Intermountain Gas Company's 2025 Integrated Resource Plan, which outlines projected customer demand over a five-year planning horizon and the resource strategies expected to meet that demand. The plan is structured into four substantive sections: Executive Summary, Demand, Supply and Delivery Resources, and Optimization. It evaluates residential, commercial, and large-volume customer demand growth under multiple scenarios, assesses impacts on the distribution system, and identifies cost-effective and operationally feasible resource solutions and energy efficiency measures to address system constraints.

The 2025 Integrated Resource Plan for Idaho Power Company outlines the optimal mix of demand- and supply-side resources to reliably serve customer demand and flexible capacity needs from 2026 to 2045. The plan's primary goals include identifying sufficient resources for growing demand, balancing cost and risk while adhering to environmental regulations, considering supply-side, demand-side, and transmission resources, and engaging the public. It establishes a Preferred Portfolio that is least-cost and least-risk, incorporating a mixture of generation resources, energy storage systems, and transmission to ensure system reliability and address trends such as the essential need for added transmission and flexible resources.