Avista receives approval of all-party, all issues settlement in Idaho general rate cases

Core Viewpoint - Avista has received approval for new electric and natural gas rates from the Idaho Public Utilities Commission, which will take effect on September 1, 2025, and September 1, 2026, aimed at increasing revenue and supporting infrastructure investments [1][2][4]. Rate Changes - The approved electric rates will increase annual base electric revenues by $19.5 million or 6.3% starting September 1, 2025, and by $14.7 million or 4.5% starting September 1, 2026 [2]. - For natural gas, the rates will increase annual base natural gas revenues by $4.6 million or 9.2% effective September 1, 2025, and will decrease base revenues by $0.2 million or 0.4% effective September 1, 2026 [2]. Financial Structure - The settlement includes a capital structure with a 9.6% return on equity (ROE), a common equity ratio of 50%, and a rate of return (ROR) on rate base of 7.28% [3]. Company Perspective - The decision by the Commission is viewed as fair and reasonable for Idaho customers, the company, and shareholders, supporting Avista's capital investments and infrastructure maintenance [4]. Customer Base - Avista serves over 145,000 electric customers and 93,000 natural gas customers in Idaho, with a broader service area covering 30,000 square miles and a total customer base of 422,000 for electric and 383,000 for natural gas [5][6].