Nassau, NY solar installation & market data
Updated July 10, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Nassau has 147 solar installations across 1 zip code at a median installed cost of $4.50/W, recent growth not yet measurable, and an installs-weighted Market Score of 47.
Active installations
147
Zip markets
1
Median cost
$4.50/W
12-mo growth
—
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Nassau scores higher than 74% of U.S. zip markets.
Versus New York
How Nassau compares with the state
Installed cost
$0.34/W above
state median $4.16/W
Market score
47 vs 59
New York scores 59
Share of state installs
0.08%
of 187.3K tracked statewide
Battery attach
1.5%
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
Nassau by year
6 installs in the trailing twelve months vs 10 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Nassau
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 50 | 0 | 1 | $5.60 |
| 2 | KASSELMAN SOLAR | 25 | 2 | 1 | $3.60 |
| 3 | PLUGPV | 13 | 1 | 1 | $3.78 |
| 4 | MONOLITH SOLAR | 12 | 0 | 1 | $4.03 |
| 5 | RGS ENERGY | 12 | 0 | 1 | $6.41 |
| 6 | DIRECT ENERGY SOLAR | 4 | 0 | 1 | $3.98 |
| 7 | SUNGEVITY | 3 | 0 | 1 | $4.42 |
| 8 | EMPIRE SOLAR SOLUTIONS | 2 | 1 | 1 | $3.77 |
| 9 | AMERICAN ENERGY CARE | 2 | 0 | 1 | $4.10 |
| 10 | POSIGEN | 2 | 0 | 1 | $4.50 |
| 11 | SEED RENEWABLES | 2 | 0 | 1 | $4.08 |
| 12 | SUNRUN | 2 | 0 | 1 | $2.93 |
Zip markets
Zips in Nassau
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 12123 | 147 | $4.50 | 47 B |