Solar installers in Washington County
36 companies have installed solar on 126 homes here since 2023 that we know of (Illinois's records name the installer for only 0% of systems). Covers Nashville, Okawville, Wamac, Irvington, Hoyleton, Ashley and nearby towns.
| Installer | Homes since 2023 | Median price in state |
|---|---|---|
| Absolute Climate Inc., d/b/a C. H. Electrical | 13 | — |
| Off Grid Energy Solutions | 12 | — |
| Supplied Energy | 10 | — |
| Freedom ForeverBased in Temecula, CA · (800) 885-9450 | 9 | — |
| EFS Energy | 8 | — |
| CR Solar | 7 | — |
| LGCY Installation Services | 7 | — |
| Absolute Climate | 6 | — |
| Missouri Sun Solar | 6 | — |
| ADT SolarBased in Boca Raton, FL · (985) 882-1408 | 4 | — |
| Revolution Energy Systems | 4 | — |
| SunVolt Solar | 4 | — |
| Solarships Installation Services | 3 | — |
| Solis Energy Services | 3 | — |
| A&i Electrical | 2 | — |
| Advanced Energy Solutions Group | 2 | — |
| Ag Technologies | 2 | — |
| Astrawatt Solar | 2 | — |
| GoodPwr | 2 | — |
| Helio Solar Power | 2 | — |
| Sun Solar | 2 | — |
| Sun Solar Illinois | 2 | — |
| A-1 Solar Sales | 1 | — |
| ARF Solar | 1 | — |
| Advanced Renewable Concepts | 1 | — |
| Contemporary Contracting | 1 | — |
| Harvest Energy Solutions | 1 | — |
| Legacy Solar | 1 | — |
| Martin Solar | 1 | — |
| Midwest Solar Solutions | 1 | — |
| Simpleray | 1 | — |
| Straight Up Solar | 1 | — |
| Titan Solar Power | 1 | — |
| Vista Energy Marketing, L.P. | 1 | — |
| Vista Installs | 1 | — |
| WW Enterprises IL | 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 Washington County: Nashville, Okawville, Wamac, Irvington, Hoyleton, Ashley, Addieville, Richview, Oakdale, Radom, Du Bois, New Minden.
Other Illinois counties
How much does solar cost in Washington County, IL?
There weren't enough Washington County systems bought outright for a county figure. Across the U.S., homes paid a median $4.10/W installed in 2023–2025, about $26,700 for a 6.5 kW system.
Which solar companies install in Washington County, IL?
36 installers have put in home systems in Washington County since 2023, the busiest being Absolute Climate Inc., d/b/a C. H. Electrical, Off Grid Energy Solutions, Supplied Energy, Freedom Forever, EFS Energy.
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.