Solar installers in Mercer County
49 companies have installed solar on 179 homes here since 2023 that we know of (Illinois's records name the installer for only 0% of systems). Covers Aledo, Viola, Matherville, Sherrard, Windsor, New Boston 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. Show all 49 installers
Towns in Mercer County: Aledo, Viola, Matherville, Sherrard, Windsor, New Boston, Keithsburg, Joy, Seaton, North Henderson, Cable, Eliza.
Other Illinois counties
How much does solar cost in Mercer County, IL?
There weren't enough Mercer 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 Mercer County, IL?
49 installers have put in home systems in Mercer County since 2023, the busiest being Freedom Forever, Eagle Point Solar, ADT Solar, Landmark Solar, Off Grid Energy Solutions.
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.