Electricity in Janesville, Wisconsin
6 electric utilities serve homes in Rock County, where Janesville is: We Energies, Alliant Energy (Wisconsin Power and Light), City of Stoughton, Rock Energy Cooperative, City of Evansville and Brodhead Water & Lighting Commission. The name of your utility is on your bill. In 2025, the average home bill of these utilities was $86.27 (City of Stoughton) to $140.90 (Rock Energy Cooperative) a month. The Wisconsin average was $120.60.
- 66,929 people (2025 estimate)
- Rock County
- EIA data, 2025
Electric utilities in Janesville
EIA lists utilities by county, not by city. These utilities serve homes in Rock County. Your address has one utility: its name is on your bill, or type your ZIP code in the utility finder.
| Utility | Homes in Wisconsin | Average bill 2025 | 1,000 kWh now |
|---|---|---|---|
| We EnergiesInvestor-owned utility · bill calculator | 1,056,086 | $131.37640 kWh, 20.5¢ | $210.74 |
| Alliant Energy (Wisconsin Power and Light)Investor-owned utility · bill calculator | 440,746 | $128.22694 kWh, 18.5¢ | $185.89 |
| City of StoughtonCity utility | 8,338 | $86.27671 kWh, 12.8¢ | — |
| Rock Energy CooperativeElectric cooperative | 7,409 | $140.90984 kWh, 14.3¢ | — |
| City of EvansvilleCity utility | 3,549 | $103.72784 kWh, 13.2¢ | — |
| Brodhead Water & Lighting CommissionCity utility | 1,549 | $96.20714 kWh, 13.5¢ | — |
The average bill is the 2025 average of each utility's homes that bought their power from it (EIA-861); a dash means that its homes buy power from a retail supplier. The 1,000 kWh bill is from the official tariff, before taxes, for the utilities that have a calculator on this site. The Wisconsin average was $120.60 a month for 667 kWh (18.1¢ per kWh).
Solar power in Janesville
A home solar system on a south-facing roof in Janesville makes about 1,346 kWh a year for each kW of panels (PVWatts, National Laboratory of the Rockies). A 6 kW system makes about 8,074 kWh a year. See what that saves on your utility's rates with the solar savings calculator.
Lower your electric bill in Janesville
- Open your utility above for its average bill, outages and rates, or the bill calculator to check your own bill.
- Help paying your We Energies bill: 4 programs, with who qualifies and how to apply.
- Help paying your Alliant Energy (Wisconsin Power and Light) bill: 5 programs, with who qualifies and how to apply.
- Help paying the electric bill in Wisconsin: bill assistance, payment plans and discounts.
- Why is my electric bill so high? and the appliance cost calculator.
More about Wisconsin: Wisconsin electric rates and all Wisconsin utilities, business electricity rates and natural gas bills. All cities of the county: electricity in Rock County. Other cities: Madison, Milwaukee, Appleton, Eau Claire, Fond du Lac, Green Bay, Kenosha, La Crosse, Manitowoc, Mequon, Oshkosh, Racine.
Who provides electricity in Janesville, WI?
6 electric utilities serve homes in Rock County, where Janesville is: We Energies, Alliant Energy (Wisconsin Power and Light), City of Stoughton, Rock Energy Cooperative, City of Evansville and Brodhead Water & Lighting Commission. The name of your utility is on your bill.
What is the average electric bill in Janesville, WI?
In 2025, the average home bill of these utilities was $86.27 (City of Stoughton) to $140.90 (Rock Energy Cooperative) a month. The Wisconsin average was $120.60 a month for 667 kWh. Your bill depends on your kWh and your rate plan.
utilityratecalc.com is not part of any utility or city government. Sources: Census Bureau city population estimates, Vintage 2025 (the city and its counties); EIA-861 data, 2025 (utilities by county, homes and average bills).