Wisconsin Power and Light Company (WPL), a subsidiary of Alliant Energy, has filed a retail electric and gas rate review with the Public Service Commission of Wisconsin for the 2026 and 2027 test periods. This filing seeks to recover increasing rate base driven by investments in solar, energy storage, natural gas improvements, and distribution system upgrades.
The request includes an increase in electric revenue requirements of $120 million for 2026 and $82 million for 2027, along with gas revenue requirements of $9 million for 2026 and $5 million for 2027. WPL has proposed a return on equity of 9.9% for both test years, with rates expected to become effective on January 1, 2026, and January 1, 2027.
This proactive regulatory engagement is essential for WPL to translate its capital investments into rate base and earnings, supporting affordability for customers through reduced fuel expenses from renewable energy resources and enhanced grid reliability. The rate review process is a critical mechanism for the company's long-term financial stability and its ability to fund ongoing infrastructure modernization.
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