Nassau, NY 12123 solar market data
Updated July 10, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Nassau 12123 has 147 solar installations at a median installed cost of $4.50/W, recent growth not yet measurable, and a Market Score of 47 — higher than 74% of U.S. zip markets.
Versus New York
How 12123 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
12123 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 12123
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 50 | 0 | 8.13 | $5.60 |
| 2 | KASSELMAN SOLAR | 25 | 2 | 9.52 | $3.60 |
| 3 | PLUGPV | 13 | 1 | 9.92 | $3.78 |
| 4 | MONOLITH SOLAR | 12 | 0 | 14.85 | $4.03 |
| 5 | RGS ENERGY | 12 | 0 | 6.13 | $6.41 |
| 6 | DIRECT ENERGY SOLAR | 4 | 0 | 6.06 | $3.98 |
| 7 | SUNGEVITY | 3 | 0 | 7.9 | $4.42 |
| 8 | EMPIRE SOLAR SOLUTIONS | 2 | 1 | 12.42 | $3.77 |
| 9 | AMERICAN ENERGY CARE | 2 | 0 | 10.8 | $4.10 |
| 10 | POSIGEN | 2 | 0 | 5.46 | $4.50 |
| 11 | SEED RENEWABLES | 2 | 0 | 4.99 | $4.08 |
| 12 | SUNRUN | 2 | 0 | 6.83 | $2.93 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 12063 East Schodack | 4.3 km | 17 | $4.65 | 45 |
| 12115 Malden Bridge | 6.6 km | 11 | $3.40 | 51 |
| 12033 Castleton On Hudson | 7.9 km | 223 | $4.39 | 47 |
| 12024 Brainard | 9.0 km | 5 | $3.97 | 48 |
| 12062 East Nassau | 9.3 km | 49 | $4.26 | 47 |
| 12061 East Greenbush | 9.5 km | 193 | $3.73 | 50 |
Equipment
What gets installed in 12123
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA24.6%
TRINA SOLAR13.0%
CSI SOLAR12.3%
SUNPOWER8.7%
REC GROUP6.5%
Inverters
ENPHASE ENERGY32.6%
SOLAREDGE27.2%
ABB14.3%
FRONIUS USA9.5%
SUNPOWER6.8%
Frequently asked
Quick answers about 12123
How many solar installations are there in 12123?
SolarDNA counts 147 active solar installations in Nassau 12123, 142 of them residential, with data through July 10, 2026.
How much does solar cost in 12123?
The median residential system in 12123 cost $4.50 per watt over the trailing twelve months, $0.34/W above the New York median.
Is solar growing in 12123?
Recent growth cannot be measured yet for 12123: too few recent installs (data runs through July 10, 2026).
Who installs solar in 12123?
TESLA, KASSELMAN SOLAR, PLUGPV lead the 29 installers with systems in 12123. The full comp set is above.
Is 12123 a good market for solar sales?
12123 scores 47 out of 100 (Great, higher than 74% of U.S. zip markets). With under 500 installations the score is provisional.