Solar installers and cost in Illinois
Public records don't include enough Illinois systems bought outright to give a state price. 588 installers have put in home systems here since 2023. Find the ones working in your county.
Solar by county
Darker counties have more installers working there since 2023. Choose a county to see them.
Solar installers in Illinois
Illinois’s public records name the installer for only 0% of systems, so this list is incomplete.
| Installer | Homes since 2023 | Median price |
|---|---|---|
| SunrunBased in San Francisco, CA · (805) 242-7255 | 23,513 | — |
| Freedom ForeverBased in Temecula, CA · (800) 885-9450 | 4,882 | — |
| Bright Planet SolarBased in Auburn, MA · (801) 388-7601 | 2,874 | — |
| Certasun | 1,764 | — |
| CR Solar | 1,760 | — |
| LGCY Installation Services | 1,760 | — |
| Sunpower Capital Services | 1,699 | — |
| Legacy Solar | 1,595 | — |
| ADT SolarBased in Boca Raton, FL · (985) 882-1408 | 1,350 | — |
| Blue Raven Solar | 1,117 | — |
| Iconic Energy | 1,074 | — |
| Fresh Coast Solar | 972 | — |
| Titan Solar Power | 943 | — |
| Straight Up Solar | 786 | — |
| TeslaBased in Fremont, CA · (702) 680-6683 | 768 | — |
| Tron Solar | 754 | — |
| Route 66 Solar | 723 | — |
| Vivint Solar Developer | 705 | — |
| Revolution Energy Systems | 661 | — |
| Off Grid: Blue Sky Smart Solutions | 624 | — |
| National Solar Service | 611 | — |
| Sun Solar | 579 | — |
| Stateline Solar | 546 | — |
| 360 Electric | 531 | — |
| GoodPwr | 495 | — |
| Solarships Installation Services | 494 | — |
| Off Grid Energy Solutions | 491 | — |
| BRS Field Ops | 489 | — |
| Helio Solar Power | 437 | — |
| ReThink Electric | 425 | — |
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 588 installers
A county shows a price once at least 20 of its systems were bought outright.
How much does solar cost in Illinois?
Public records don't include enough Illinois systems bought outright for a state figure. Nationally, homes paid a median $4.10/W installed in 2023–2025.
Who are the most active solar installers in Illinois?
By homes installed since 2023, the most active installers in Illinois are Sunrun, Freedom Forever, Bright Planet Solar, Certasun, CR Solar. Being busiest doesn't make a company the best choice: get several quotes and compare price per watt, equipment and warranty.
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.