v3.25.2
Revenues
 6 Months Ended
Jun. 30, 2025
Revenue from Contract with Customer [Abstract]  
Revenues
Revenue is classified by the type of goods/services rendered and market/customer type. NSP-Wisconsin’s operating revenues consisted of the following:
Three months ended June 30, 2025
(Millions of Dollars)ElectricNatural GasTotal
Major revenue types
Revenue from contracts with customers:
Residential$71 $13 $84 
C&I123 9 132 
Other1 — 1 
Total retail195 22 217 
Interchange and other57 2 59 
Total revenue from contracts with customers252 24 276 
Alternative revenue and other1 — 1 
Total revenues$253 $24 $277 
Three Months Ended June 30, 2024
(Millions of Dollars)ElectricNatural GasTotal
Major revenue types
Revenue from contracts with customers:
Residential$66 $12 $78 
C&I119 8 127 
Other1 — 1 
Total retail186 20 206 
Interchange and other58 1 59 
Total revenue from contracts with customers244 21 265 
Alternative revenue and other2 — 2 
Total revenues$246 $21 $267