Solar in Beloit, WI
With Alliant Energy (Wisconsin Power & Light)'s electricity at about 19.1¢ per kWh and 1,340 kWh of sun per kW, solar is worth it for a typical Beloit home today: about a 12.4-year payback.
- Payback, typical home
- 12.4 yrsWisconsin: 13.2 yrs
- 25-year net
- $23,294after paying $17,900
- Sun
- 1,340kWh per kW per year
- Electricity
- 19.1¢6% above U.S. average
A typical Beloit home, by the numbers
| Utility | Alliant Energy (Wisconsin Power & Light) |
|---|---|
| Electricity use | 694 kWh a month |
| Best-value system | 5.6 kW, about 13 panels, 7,502 kWh a year (90% of use) |
| Cost | $20,300, or $17,900 after state incentives |
| First-year savings | $1,436 |
| Payback | 12.4 years |
| Exported power | Full retail net metering (Alliant Energy (Wisconsin Power & Light)) |
Cash purchase, no federal credit, 2.5% yearly rate increases. Run it with your own numbers.
Homes in Beloit
- Owner-occupied homes
- 59%
- Single-family detached
- 73%
- Median home value
- $157k
- Median year built
- 1957
- Population
- 36,534
- Solar installs, last 3 years*
- 32
Census ACS 2020–2024. *Installations in public records for this area's ZIP codes.
Older housing stock. Many homes here were built before 1975. Have the roof and electrical panel checked before signing; a roof or panel upgrade can add thousands. Roof first?
Installers working in Beloit
Companies with the most installations in Beloit's ZIP codes over the last 3 years, from public records. We don't take payment for placement.
- Everlight Solar 17 installs
- Freedom Forever 4 installs
- All Energy Solar 2 installs
- Eagle Point Solar 2 installs
- Endries Solar Electric 1 installs
- Iconic Energy 1 installs
- Midwest Solar Power 1 installs
- Next Energy 1 installs
- Tron Solar 1 installs
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Beloit
Is solar worth it in Beloit, WI?
For a typical home in Beloit, solar is worth it at 2026 prices: a 5.6 kW system costs about $17,900 after state incentives, saves about $1,436 in year one and pays back in about 12.4 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Beloit?
About 1,340 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 1% more than the Wisconsin average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Beloit?
Most homes in Beloit are served by Alliant Energy (Wisconsin Power & Light), at about 19.1¢ per kWh on average. Some areas are served by Rock Energy Cooperative.
How much do solar panels cost in Beloit?
A fair cash price is around $3.50 per watt before incentives, so about $20,300 for a 5.6 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Janesville 12.3 yrs
- Fitchburg 11.3 yrs
- Madison 11.5 yrs
- Sun Prairie 12.6 yrs
- Muskego 11.8 yrs
- Waukesha 11.6 yrs
- New Berlin 11.5 yrs
- Franklin 11.7 yrs
- All of Wisconsin
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.