Tazewell County, IL solar installation & market data
Updated October 1, 2026 By The SolarDNA Data Team
Tazewell County has 3,068 solar installations across 15 zip codes, installations down 30.5% over the trailing twelve months, and an installs-weighted Market Score of 37.
Active installations
3,068
Zip markets
15
Median cost
—
12-mo growth
▼ 30.5%
Installers active
82
County Market Score
Fair · installs-weighted across 15 zips
Best zip in Tazewell County scores higher than 48% of U.S. zip markets.
Versus Illinois
How Tazewell County compares with the state
Installed cost
—
state median $6.56/W
Market score
37 vs 43
Illinois scores 43
Share of state installs
2.72%
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: 476–644 installs (midpoint 560)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Growth & pricing
Tazewell County by year
659 installs in the trailing twelve months vs 948 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Tazewell County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 340 | 132 | 14 | — |
| 2 | FREEDOM FOREVER | 103 | 75 | 10 | — |
| 3 | LGCY POWER | 66 | 55 | 10 | — |
| 4 | 360 ELECTRIC | 57 | 33 | 13 | — |
| 5 | OASIS WORLD SOLUTIONS | 46 | 15 | 5 | — |
| 6 | CR SOLAR | 41 | 21 | 10 | — |
| 7 | LEGACY SOLAR | 29 | 19 | 8 | — |
| 8 | PORTER ELECTRIC | 27 | 10 | 6 | — |
| 9 | OBERLANDER ELECTRIC | 24 | 8 | 7 | — |
| 10 | BRIGHT PLANET SOLAR | 23 | 18 | 5 | — |
| 11 | ROOF TIGER PLLC | 21 | 7 | 4 | — |
| 12 | RUYLE MECHANICAL SERVICES | 17 | 7 | 4 | — |
| 13 | A & J SOLAR | 16 | 13 | 6 | — |
| 14 | SOLAR PANTHER | 16 | 6 | 4 | — |
| 15 | TRI POWER ELECTRIC CONTRACTORS | 12 | 7 | 4 | — |
| 16 | HELIO SOLAR POWER | 8 | 0 | 6 | — |
| 17 | REVOLUTION ENERGY SYSTEMS | 8 | 6 | 4 | — |
| 18 | ADVANCED RENEWABLE CONCEPTS | 8 | 4 | 4 | — |
| 19 | OFF GRID ENERGY SOLUTIONS | 7 | 7 | 2 | — |
| 20 | RUYLE MECHANICAL | 7 | 4 | 4 | — |
| 21 | ZELLER ELECTRIC | 7 | 1 | 3 | — |
| 22 | RUYLE | 6 | 3 | 5 | — |
| 23 | TITAN SOLAR POWER | 6 | 1 | 4 | — |
| 24 | ONE EARTH SOLAR | 6 | 6 | 3 | — |
| 25 | BRS FIELD OPS | 5 | 5 | 4 | — |