Solar installers in Jefferson County
26 companies have installed solar on 167 homes here since 2023. Covers Watertown, Fort Atkinson, Jefferson, Lake Mills, Whitewater, Koshkonong and nearby towns.
| Installer | Homes since 2023 | Median price in state |
|---|---|---|
| Everlight Solar | 90 | $5.05/W$1.13 above median |
| Next Energy | 14 | $3.45/W$0.47 below median |
| All Energy Solar | 9 | $3.73/W$0.19 below median |
| Arch Electric | 7 | $3.55/W$0.37 below median |
| Freedom ForeverBased in Temecula, CA · (800) 885-9450 | 6 | $4.73/W$0.81 above median |
| Home Team Energy | 6 | $2.93/W$0.99 below median |
| Tron Solar | 5 | $4.85/W$0.93 above median |
| Adams ElectricBased in Winchester, CA · (909) 234-0535 | 3 | $4.18/W$0.26 above median |
| Midwest Solar Power | 3 | $2.88/W$1.04 below median |
| Olson Solar Energy | 3 | $3.15/W$0.77 below median |
| Traditions 1291006 | 3 | $5.13/W$1.21 above median |
| Elevated Solar Performance | 2 | $3.07/W$0.85 below median |
| LTL Led | 2 | $3.92/W |
| Sol Energy New Mexico | 2 | $5.50/W$1.58 above median |
| Black 33 1350540 | 1 | — |
| Blue Raven Solar Holdings LLC - 10040006 | 1 | $5.62/W$1.70 above median |
| Christopher C Folk 1290941 | 1 | — |
| Current Electric | 1 | $3.81/W$0.11 below median |
| Duck Creek Engineering | 1 | — |
| Eland Electric | 1 | $2.96/W$0.96 below median |
| Glow Solar | 1 | $2.91/W$1.01 below median |
| Integrated Building System | 1 | — |
| Kollmann Electric | 1 | — |
| SolciusBased in Provo, UT · (844) 970-0175 | 1 | $4.65/W$0.73 above median |
| TeslaBased in Fremont, CA · (702) 680-6683 | 1 | — |
| Westphal | 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 Jefferson County: Watertown, Fort Atkinson, Jefferson, Lake Mills, Whitewater, Koshkonong, Waterloo, Johnson Creek, Oakland, Concord, Palmyra, Farmington.
Other Wisconsin counties
How much does solar cost in Jefferson County, WI?
Homes in Jefferson County that bought solar in 2023–2025 paid a median $5.07/W installed, about $40,600 for a 8 kW system before incentives.
Which solar companies install in Jefferson County, WI?
26 installers have put in home systems in Jefferson County since 2023, the busiest being Everlight Solar, Next Energy, All Energy Solar, Arch Electric, Freedom Forever.
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.