Adams County, IL solar installation & market data
Updated September 23, 2026 By The SolarDNA Data Team
Adams County has 778 solar installations across 16 zip codes, installations down 28.0% over the trailing twelve months, and an installs-weighted Market Score of 42.
Active installations
778
Zip markets
16
Median cost
—
12-mo growth
▼ 28.0%
Installers active
33
County Market Score
Good · installs-weighted across 16 zips
Best zip in Adams County scores higher than 57% of U.S. zip markets.
Versus Illinois
How Adams County compares with the state
Installed cost
—
state median $6.56/W
Market score
42 vs 43
Illinois scores 43
Share of state installs
0.69%
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: 126–166 installs (midpoint 146)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±14% band. Not a forecast of permits or policy.
Growth & pricing
Adams County by year
170 installs in the trailing twelve months vs 236 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Adams County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | FREEDOM FOREVER | 78 | 45 | 8 | — |
| 2 | LANDMARK SOLAR | 59 | 39 | 9 | — |
| 3 | SUNSPOT SOLAR | 49 | 5 | 10 | — |
| 4 | SOURCE SOLAR | 22 | 22 | 2 | — |
| 5 | LGCY POWER | 14 | 11 | 7 | — |
| 6 | ADVANCED RENEWABLE CONCEPTS | 5 | 5 | 1 | — |
| 7 | CORVUS PRO SOLAR LLP | 5 | 3 | 2 | — |
| 8 | TRON SOLAR | 5 | 5 | 3 | — |
| 9 | OFF GRID BLUE SKY SMART SOLUTIONS | 5 | 0 | 2 | — |
| 10 | SOLARSHIPS INSTALLATION SERVICES | 4 | 4 | 2 | — |
| 11 | LANDMARK IRRIGATION & DRAINAGE DBA LANDMARK SOLAR | 4 | 4 | 2 | — |
| 12 | BLUE SKY SMART SOLUTIONS | 4 | 0 | 3 | — |
| 13 | IDEAL ENERGY | 3 | 0 | 2 | — |
| 14 | SUN SOLAR | 3 | 0 | 3 | — |
| 15 | SCRANTON HEATING AND COOLING | 2 | 2 | 1 | — |
| 16 | LANDMARK IRRIGATION | 2 | 1 | 1 | — |
| 17 | ECO MANAGEMENT SYSTEMS LIMITED-IL | 2 | 2 | 2 | — |
| 18 | AVEYO OFF GRID ENERGY SOLUTIONS | 2 | 2 | 2 | — |
| 19 | STRAIGHTUP SOLAR | 1 | 0 | 1 | — |
| 20 | PALS ELECTRIC | 1 | 0 | 1 | — |
| 21 | TRI-STATE RENEWABLE ENERGY | 1 | 0 | 1 | — |
| 22 | REVOLUTION ENERGY SYSTEMS | 1 | 1 | 1 | — |
| 23 | NELNET RENEWABLE ENERGY | 1 | 1 | 1 | — |
| 24 | SUN SOLAR ILLINOIS | 1 | 0 | 1 | — |
| 25 | LIONBERGER RENEWABLE ENERGY | 1 | 0 | 1 | — |