Piatt County, IL solar installation & market data
Updated September 21, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Piatt County has 331 solar installations across 10 zip codes, installations down 10.5% over the trailing twelve months, and an installs-weighted Market Score of 41.
Active installations
331
Zip markets
10
Median cost
—
12-mo growth
▼ 10.5%
Installers active
37
County Market Score
Good · installs-weighted across 10 zips
Best zip in Piatt County scores higher than 48% of U.S. zip markets.
Versus Illinois
How Piatt County compares with the state
Installed cost
—
state median $6.56/W
Market score
41 vs 43
Illinois scores 43
Share of state installs
0.29%
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: 58–70 installs (midpoint 64)
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
Piatt County by year
68 installs in the trailing twelve months vs 76 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Piatt County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | ROUTE 66 SOLAR | 13 | 4 | 5 | — |
| 2 | CR SOLAR | 11 | 3 | 2 | — |
| 3 | LGCY POWER | 8 | 4 | 2 | — |
| 4 | FREEDOM FOREVER | 8 | 8 | 5 | — |
| 5 | SANGAMON SOLAR | 7 | 0 | 3 | — |
| 6 | BLUE SKY SMART SOLUTIONS | 6 | 0 | 6 | — |
| 7 | WELLSPRING COMPONENTS | 5 | 1 | 2 | — |
| 8 | BRIGHT PLANET SOLAR | 4 | 3 | 3 | — |
| 9 | EDELMAN | 4 | 2 | 4 | — |
| 10 | OFF GRID ENERGY SOLUTIONS DBA AVEYO | 4 | 3 | 3 | — |
| 11 | AVEYO OFF GRID ENERGY SOLUTIONS | 4 | 4 | 3 | — |
| 12 | OFF GRID BLUE SKY SMART SOLUTIONS | 4 | 0 | 4 | — |
| 13 | AG TECHNOLOGIES | 3 | 1 | 3 | — |
| 14 | NEW PRAIRIE CONSTRUCTION | 3 | 2 | 2 | — |
| 15 | OFF GRID ENERGY SOLUTIONS | 3 | 3 | 3 | — |
| 16 | LEGACY SOLAR | 3 | 3 | 3 | — |
| 17 | IL-SOLAR | 3 | 2 | 2 | — |
| 18 | HARVEST ENERGY SOLUTIONS | 2 | 1 | 2 | — |
| 19 | KONISTO COMPANIES | 2 | 2 | 1 | — |
| 20 | GREEN GRIDS SOLAR | 2 | 2 | 1 | — |
| 21 | SUNRUN | 2 | 2 | 1 | — |
| 22 | STRAIGHTUP SOLAR | 1 | 0 | 1 | — |
| 23 | PALS ELECTRIC | 1 | 1 | 1 | — |
| 24 | BRS FIELD OPS | 1 | 1 | 1 | — |
| 25 | GRNE-NELNET | 1 | 0 | 1 | — |