Madison Gas & Electric Co
Investor Owned electric utility · Wisconsin · #165 of 3,199 U.S. utilities by customers · EIA utility #11479
Madison Gas & Electric Co is a investor owned electric utility serving 168,439 customers in Wisconsin. In 2025 it sold 3,221 gigawatt-hours of electricity for $506.80M in revenue, an average realized rate of 15.74¢ per kWh across all customer classes and 21.11¢ per kWh for residential customers. Its reported service territory covers 1 counties. EIA records its activities as: generation, buying transmission, distribution, retail marketing, bundled.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 148,482 | 900 | $189.90M | 21.11¢ | |
| Commercial | 19,936 | 2,178 | $304.20M | 13.97¢ | |
| Industrial | 21 | 143 | $12.70M | 8.87¢ | |
| Total | 168,439 | 3,221 | $506.80M | 15.74¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (505 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 160,976 | 3,201 | $401.95M | 16.66¢ |
| 2022 | 163,413 | 3,191 | $442.99M | 18.20¢ |
| 2023 | 162,729 | 3,159 | $480.58M | 19.72¢ |
| 2024 | 168,932 | 3,154 | $484.59M | 20.34¢ |
| 2025 | 168,439 | 3,221 | $506.80M | 21.11¢ |
Reliability (2025)
Average outage time (SAIDI): 49 minutes per customer per year
Average outages (SAIFI): 0.39 per customer
Average restoration time (CAIDI): 124 minutes
As reported for Wisconsin under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: 3,374 GWh
Wholesale power purchased: 661 GWh
Winter peak demand: 494 MW
Energy losses: 3.0% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 31.5% of 173,206 meters
Customer-sited generation (net metering): 3,062 installations, 57.6 MW of capacity
Counties served
Dane, WI
Other large utilities in Wisconsin
- Wisconsin Electric Power Co - 1,179,163 customers, residential 20.53¢
- Wisconsin Power & Light Co - 505,706 customers, residential 18.47¢
- Wisconsin Public Service Corp - 472,199 customers, residential 17.20¢
- Northern States Power Co - 273,992 customers, residential 15.55¢
- Adams-Columbia Electric Coop - 39,826 customers, residential 18.98¢
- Polk-Burnett Electric Coop - 22,408 customers, residential 15.96¢
- Riverland Energy Cooperative - 20,219 customers, residential 16.19¢
- Barron Electric Coop - 19,794 customers, residential 16.02¢
All Wisconsin utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #11479 in the EIA frame.