Rock Island County, IL solar installation & market data
Updated September 23, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Rock Island County has 348 solar installations across 16 zip codes, installations down 16.9% over the trailing twelve months, and an installs-weighted Market Score of 41.
Active installations
348
Zip markets
16
Median cost
—
12-mo growth
▼ 16.9%
Installers active
30
County Market Score
Good · installs-weighted across 16 zips
Best zip in Rock Island County scores higher than 45% of U.S. zip markets.
Versus Illinois
How Rock Island County compares with the state
Installed cost
—
state median $6.56/W
Market score
41 vs 43
Illinois scores 43
Share of state installs
0.31%
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: 49–59 installs (midpoint 54)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
Rock Island County by year
59 installs in the trailing twelve months vs 71 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Rock Island County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | OFF GRID BLUE SKY SMART SOLUTIONS | 8 | 1 | 5 | — |
| 2 | SOURCE SOLAR | 7 | 3 | 4 | — |
| 3 | EMERALD CITY SOLAR | 6 | 0 | 4 | — |
| 4 | EAGLE POINT SOLAR | 6 | 5 | 5 | — |
| 5 | FREEDOM FOREVER | 5 | 4 | 3 | — |
| 6 | TRI-CITY ELECTRIC OF IOWA | 4 | 2 | 4 | — |
| 7 | REVOLUTION ENERGY SYSTEMS | 3 | 2 | 3 | — |
| 8 | LANDMARK SOLAR | 3 | 2 | 2 | — |
| 9 | SOLAR GRIDS QUAD CITIES | 2 | 1 | 2 | — |
| 10 | ADT SOLAR | 2 | 1 | 2 | — |
| 11 | LEHMANN ELECTRIC & DESIGN | 2 | 1 | 2 | — |
| 12 | JUSTIN MEDINGER | 1 | 0 | 1 | — |
| 13 | A M KERNS CONSTRUCTION | 1 | 0 | 1 | — |
| 14 | SOLECTRIC | 1 | 0 | 1 | — |
| 15 | LGCY POWER | 1 | 0 | 1 | — |
| 16 | LEGACY SOLAR | 1 | 1 | 1 | — |
| 17 | LAKEWOOD ELECTRIC & GENERATOR SERVICE | 1 | 0 | 1 | — |
| 18 | GROBSTICK SOLAR | 1 | 0 | 1 | — |
| 19 | 360 ELECTRIC | 1 | 0 | 1 | — |
| 20 | STRAIGHTUP SOLAR | 1 | 0 | 1 | — |
| 21 | IOWA WIND AND SOLAR | 1 | 1 | 1 | — |
| 22 | OFF GRID ENERGY SERVICES | 1 | 1 | 1 | — |
| 23 | LANDMARK IRRIGATION DBA LANDMARK SOLAR | 1 | 1 | 1 | — |
| 24 | SOLAR SOURCE | 1 | 1 | 1 | — |
| 25 | BLUE SKY SMART SOLUTIONS | 1 | 0 | 1 | — |