Henry County, IL solar installation & market data
Updated September 21, 2026 By The SolarDNA Data Team
Henry County has 631 solar installations across 15 zip codes, installations up 25.5% over the trailing twelve months, and an installs-weighted Market Score of 42.
Active installations
631
Zip markets
15
Median cost
—
12-mo growth
▲ 25.5%
Installers active
36
County Market Score
Good · installs-weighted across 15 zips
Best zip in Henry County scores higher than 49% of U.S. zip markets.
Versus Illinois
How Henry County compares with the state
Installed cost
—
state median $6.56/W
Market score
42 vs 43
Illinois scores 43
Share of state installs
0.56%
of 112.7K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▲ 23.1%
residential solar added in Illinois, 12 months through Jul 2026
Statewide market
136.9K systems
4.0% of homes · utility-reported through Jul 2026
Next-12-month outlook: 116–150 installs (midpoint 133)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±13% band. Not a forecast of permits or policy.
Growth & pricing
Henry County by year
118 installs in the trailing twelve months vs 94 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Henry County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | FREEDOM FOREVER | 40 | 35 | 5 | — |
| 2 | EAGLE POINT SOLAR | 20 | 8 | 5 | — |
| 3 | LEGACY SOLAR | 17 | 17 | 6 | — |
| 4 | SUNRUN | 15 | 6 | 4 | — |
| 5 | CR SOLAR | 8 | 8 | 3 | — |
| 6 | ADT SOLAR | 5 | 2 | 3 | — |
| 7 | EMERALD CITY SOLAR | 4 | 0 | 3 | — |
| 8 | OFF GRID BLUE SKY SMART SOLUTIONS | 3 | 0 | 2 | — |
| 9 | CLEAN ENERGY DESIGN GROUP | 3 | 0 | 2 | — |
| 10 | BRIGHT PLANET SOLAR | 3 | 3 | 1 | — |
| 11 | A M KERNS CONSTRUCTION | 3 | 2 | 2 | — |
| 12 | OFF GRID ENERGY SOLUTIONS | 3 | 3 | 1 | — |
| 13 | LGCY POWER | 3 | 2 | 2 | — |
| 14 | 360 ELECTRIC | 3 | 1 | 2 | — |
| 15 | IL-SOLAR | 2 | 0 | 1 | — |
| 16 | AVEYO OFF GRID ENERGY SOLUTIONS | 2 | 2 | 2 | — |
| 17 | OFF GRID ENERGY SOLUTIONS DBA AVEYO | 2 | 2 | 2 | — |
| 18 | SOLAR GRIDS QUAD CITIES | 2 | 0 | 2 | — |
| 19 | SOLECTRIC | 2 | 0 | 2 | — |
| 20 | TRON SOLAR | 2 | 1 | 2 | — |
| 21 | ROCK RIVER ELECTRIC | 2 | 1 | 2 | — |
| 22 | REVOLUTION ENERGY SYSTEMS | 2 | 2 | 2 | — |
| 23 | WOLFPACK ELECTRIC | 1 | 1 | 1 | — |
| 24 | WINDFREE WIND & SOLAR ENERGY | 1 | 0 | 1 | — |
| 25 | GOODPWR | 1 | 1 | 1 | — |