Solar installers in Madison County
117 companies have installed solar on 2,142 homes here since 2023 that we know of (Illinois's records name the installer for only 0% of systems). Covers Granite City, Edwardsville, Alton, Collinsville, Godfrey, Glen Carbon and nearby towns.
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 Madison County: Granite City, Edwardsville, Alton, Collinsville, Godfrey, Glen Carbon, Troy, Wood River, Highland, Bethalto, Maryville, Pontoon Beach.
Other Illinois counties
How much does solar cost in Madison County, IL?
There weren't enough Madison 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 Madison County, IL?
117 installers have put in home systems in Madison County since 2023, the busiest being CR Solar, Freedom Forever, LGCY Installation Services, GoodPwr, Sun 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.