Avista Corporation filed an annual rate adjustment with the Idaho Public Utilities Commission to recover $25.2 million in 2025 energy‑efficiency program costs, effective May 1 2026.
The adjustment raises electric revenues by 7.4%, aligning revenue collection with actual program expenses that exceeded the amounts budgeted for the year. The filing is a routine regulatory action but is material because it directly impacts customer bills and the company’s revenue stream.
Residential customers using an average of 939 kWh per month will see their monthly electric bills rise from $115.54 to $124.44—an $8.90 increase or 7.7%. The adjustment is a pass‑through of program costs and is not expected to affect Avista’s earnings.
Avista’s energy‑efficiency programs are a key part of its regulatory obligations and customer‑service strategy. The 2025 costs were higher than forecasted, prompting the adjustment. The filing is part of Avista’s broader rate‑setting activity, which also includes a multi‑year plan in Washington state.
The filing is the first new event reported for Avista on February 13 2026, and it represents a routine but material update to the company’s rate structure in Idaho.
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