Cornwall, NY solar installation & market data
Updated August 20, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Cornwall has 150 solar installations across 1 zip code at a median installed cost of $3.77/W, recent growth not yet measurable, and an installs-weighted Market Score of 50.
Active installations
150
Zip markets
1
Median cost
$3.77/W
12-mo growth
—
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Cornwall scores higher than 88% of U.S. zip markets.
Versus New York
How Cornwall compares with the state
Installed cost
$0.39/W below
state median $4.16/W
Market score
50 vs 59
New York scores 59
Share of state installs
0.08%
of 187.3K tracked statewide
Battery attach
5.8%
state 2.1%
Statewide momentum
▲ 25.2%
residential solar added in New York, 12 months through Jul 2026
Statewide market
274.1K systems
6.4% of homes · utility-reported through Jul 2026
Growth & pricing
Cornwall by year
5 installs in the trailing twelve months vs 14 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Cornwall
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 25 | 0 | 1 | $5.00 |
| 2 | PLUGPV | 19 | 2 | 1 | $5.37 |
| 3 | SUNRUN | 18 | 1 | 1 | $2.87 |
| 4 | WILTSHIRE RENEWABLE ENERGY SYSTEMS | 15 | 0 | 1 | $2.45 |
| 5 | INFINITY SOLAR SYSTEMS | 11 | 1 | 1 | $3.25 |
| 6 | TRINITY SOLAR | 10 | 0 | 1 | $4.19 |
| 7 | SUNPOWER | 9 | 0 | 1 | $3.78 |
| 8 | LONG ISLAND POWER SOLUTIONS | 7 | 0 | 1 | $2.89 |
| 9 | KILOWATT SYSTEMS | 4 | 0 | 1 | $3.60 |
| 10 | NRG RESIDENTIAL SOLAR SOLUTIONS | 4 | 0 | 1 | $3.43 |
| 11 | SUNCOMMON | 4 | 0 | 1 | $3.90 |
| 12 | SUNNOVA ENERGY | 4 | 0 | 1 | $3.19 |
Zip markets
Zips in Cornwall
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 12518 | 150 | $3.77 | 50 B |