Downers Grove, IL solar installation & market data
Updated August 20, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Downers Grove has 342 solar installations across 2 zip codes, recent growth not yet measurable, and an installs-weighted Market Score of 42.
Active installations
342
Zip markets
2
Median cost
—
12-mo growth
—
Installers active
23
City Market Score
Good · installs-weighted across 2 zips
Best zip in Downers Grove scores higher than 49% of U.S. zip markets.
Versus Illinois
How Downers Grove compares with the state
Installed cost
—
state median $6.56/W
Market score
42 vs 43
Illinois scores 43
Share of state installs
0.30%
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
Growth & pricing
Downers Grove by year
45 installs in the trailing twelve months vs 54 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Downers Grove
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 25 | 3 | 2 | — |
| 2 | FRESH COAST SOLAR | 20 | 13 | 2 | — |
| 3 | CERTASUN | 9 | 5 | 2 | — |
| 4 | BLUE RAVEN SOLAR | 4 | 0 | 2 | — |
| 5 | ION DEVELOPER | 3 | 1 | 2 | — |
| 6 | WINDFREE WIND & SOLAR ENERGY | 3 | 2 | 2 | — |
| 7 | TESLA | 3 | 1 | 2 | — |
| 8 | SUNPOWER | 3 | 3 | 2 | — |
| 9 | WINDFREE SOLAR | 2 | 2 | 1 | — |
| 10 | ETW ENERGY TX | 2 | 2 | 2 | — |
| 11 | FIBONACCI ENERGY | 2 | 0 | 1 | — |
| 12 | ALOHA SOLAR | 1 | 1 | 1 | — |
| 13 | MIDWEST SOLUTIONS | 1 | 1 | 1 | — |
| 14 | REFICIENCY | 1 | 1 | 1 | — |
| 15 | ADVANCED RENEWABLE CONCEPTS | 1 | 0 | 1 | — |
| 16 | SUNRISE SOLAR | 1 | 1 | 1 | — |
| 17 | ION SOLAR | 1 | 1 | 1 | — |
| 18 | BRS FIELD OPS | 1 | 1 | 1 | — |
| 19 | KAPITAL ELECTRIC | 1 | 0 | 1 | — |
| 20 | BRIGHT PLANET SOLAR | 1 | 1 | 1 | — |
| 21 | ETW ENERGY | 1 | 1 | 1 | — |
| 22 | FREEDOM FOREVER | 1 | 0 | 1 | — |
| 23 | TRON SOLAR | 1 | 1 | 1 | — |