Solar installers in Rock County
25 companies have installed solar on 293 homes here since 2023. Covers Janesville, Beloit, Edgerton, Evansville, Milton, Rock and nearby towns.
| Installer | Homes since 2023 | Median price in state |
|---|---|---|
| Everlight Solar | 171 | $5.05/W$1.13 above median |
| Midwest Solar Power | 33 | $2.88/W$1.04 below median |
| Next Energy | 15 | $3.45/W$0.47 below median |
| All Energy Solar | 14 | $3.73/W$0.19 below median |
| Tron Solar | 13 | $4.85/W$0.93 above median |
| Freedom ForeverBased in Temecula, CA · (800) 885-9450 | 9 | $4.73/W$0.81 above median |
| Eagle Point Solar | 7 | $3.42/W$0.50 below median |
| Drews Solar | 6 | $2.63/W$1.29 below median |
| Home Team Energy | 4 | $2.93/W$0.99 below median |
| Arch Electric | 2 | $3.55/W$0.37 below median |
| Greenlink Energy Solutions | 2 | $3.75/W$0.17 below median |
| Saint Electric 816248 | 2 | — |
| Skyline SolarBased in Hamilton, NJ · (732) 354-3111 | 2 | — |
| Traditions 1291006 | 2 | $5.13/W$1.21 above median |
| Adams ElectricBased in Winchester, CA · (909) 234-0535 | 1 | $4.18/W$0.26 above median |
| Endries Solar Electric | 1 | $3.14/W$0.78 below median |
| Grobstick Solar 10059027 | 1 | — |
| Iconic Energy | 1 | — |
| Lehmann Electrical Design | 1 | $4.92/W$1.00 above median |
| Olson Solar Energy | 1 | $3.15/W$0.77 below median |
| Sol Energy New Mexico | 1 | $5.50/W$1.58 above median |
| Sun Badger Solar | 1 | — |
| Sun Vault Roofing LLC - 10124327 | 1 | — |
| Synergy Renewable Systems | 1 | $2.64/W$1.28 below median |
| Watts Up Engineering | 1 | — |
Ranked by homes installed, which shows who’s active here, not who’s best. Prices are each company’s median for systems sold outright, shown when it sold at least 10.
Towns in Rock County: Janesville, Beloit, Edgerton, Evansville, Milton, Rock, Harmony, Turtle, Clinton, Union, Newark, Orfordville.
Other Wisconsin counties
How much does solar cost in Rock County, WI?
Homes in Rock County that bought solar in 2023–2025 paid a median $4.90/W installed, about $36,800 for a 7.5 kW system before incentives.
Which solar companies install in Rock County, WI?
25 installers have put in home systems in Rock County since 2023, the busiest being Everlight Solar, Midwest Solar Power, Next Energy, All Energy Solar, Tron Solar.
Installed prices and installers from public installation records: Lawrence Berkeley National Laboratory’s Tracking the Sun (systems installed through 2025) and state program files from California, New York, New Jersey, Connecticut, Illinois and Oregon, which run into 2026. Prices are in dollars per watt of panel capacity (DC), before rebates and tax credits, for homes that bought their system; leased systems and systems with batteries are left out.