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Regulatory Environment (Tables) - Public Service Commission of Wisconsin
 12 Months Ended
Dec. 31, 2024
2025 and 2026 Rates  
Public Utilities, General Disclosures  
Schedule of regulatory decisions The final written orders reflected the following:
WEWPSWG
2025 rate increase
Electric (1)
$144.0  million/4.2%$55.1  million/4.5%N/A
Gas$41.3  million/7.1%$14.9  million/3.8%$34.5  million/4.2%
Steam$1.5  million/5.0%N/AN/A
2026 rate increase (2)
Electric (1)
$169.5  million/4.5%$30.0  million/2.3%N/A
Gas$29.8  million/4.5%$13.5  million/3.1%$23.5  million/2.6%
ROE9.8%9.8%9.8%
Common equity component average on a financial basis53.0%53.0%53.0%

(1)    Amounts reflect the impact to our Wisconsin retail electric operations and include the incremental decrease resulting from updated fuel costs.

(2)    The 2026 rate increases are incremental to the previously authorized revenue plus the approved rate increases for 2025.
2024 Rate Case Re-Opener  
Public Utilities, General Disclosures  
Schedule of regulatory decisions The final orders reflected the following:
WEWPSWG
2024 incremental rate increases (decreases)
Electric (1)
$82.2  million/2.5%$(32.7) million/(2.6)%N/A
Gas$23.9  million/4.5%N/A$21.6  million/2.8%

(1)    Amounts reflect the impact to our Wisconsin retail electric operations and include any incremental increases (WE) or decreases (WPS) resulting from updated fuel costs.
2023 and 2024 Rates  
Public Utilities, General Disclosures  
Schedule of regulatory decisions The final orders reflected the following:
WEWPSWG
2023 base rate increase
Electric$283.5  million/9.1%$120.5  million/9.8%N/A
Gas$46.1  million/9.6%$26.4  million/7.1%$46.5  million/6.4%
Steam$7.6  million/35.3%N/AN/A
ROE9.8%9.8%9.8%
Common equity component average on a financial basis53.0%53.0%53.0%