Jefferson Utilities
Municipal electric utility · Wisconsin · #1,633 of 3,199 U.S. utilities by customers · EIA utility #9690
Jefferson Utilities is a municipal electric utility serving 4,363 customers in Wisconsin. In 2025 it sold 101 gigawatt-hours of electricity for $11.04M in revenue, an average realized rate of 10.93¢ per kWh across all customer classes and 12.43¢ per kWh for residential customers. Its reported service territory covers 1 counties. EIA records its activities as: distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 3,752 | 31.3 | $3.89M | 12.43¢ | |
| Commercial | 610 | 49.6 | $5.51M | 11.12¢ | |
| Industrial | 1 | 20.1 | $1.64M | 8.14¢ | |
| Total | 4,363 | 101 | $11.04M | 10.93¢ |
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 (695 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 4,130 | 99.0 | $9.91M | 11.17¢ |
| 2022 | 4,226 | 98.3 | $10.72M | 12.46¢ |
| 2023 | 4,298 | 94.8 | $10.00M | 11.72¢ |
| 2024 | 4,333 | 95.5 | $10.02M | 11.87¢ |
| 2025 | 4,363 | 101 | $11.04M | 12.43¢ |
Energy supply (2025)
Net generation: 0.0 GWh
Wholesale power purchased: 105 GWh
Winter peak demand: 16 MW
Energy losses: 4.3% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 92.0% of 4,500 meters
Customer-sited generation (net metering): 25 installations, 0.3 MW of capacity
Counties served
Jefferson, 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¢
- Madison Gas & Electric Co - 168,439 customers, residential 21.11¢
- 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¢
All Wisconsin utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #9690 in the EIA frame.