East Islip, NY 11730 solar market data
Updated December 23, 2025Provisional score · under 500 installs By The SolarDNA Data Team
East Islip 11730 has 203 solar installations at a median installed cost of $4.42/W, recent growth not yet measurable, and a Market Score of 47 — higher than 76% of U.S. zip markets.
Versus New York
How 11730 compares with the state
Installed cost
$0.26/W above
state median $4.16/W
Market score
47 vs 59
New York scores 59
Share of state installs
0.11%
of 187.3K tracked statewide
Battery attach
3.5%
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
11730 by year
5 installs in the trailing twelve months vs 13 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 11730
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNATION SOLAR SYSTEMS | 42 | 1 | 10.07 | $3.89 |
| 2 | TESLA | 21 | 1 | 8.47 | $5.60 |
| 3 | SUNRUN | 20 | 0 | 6.42 | $5.49 |
| 4 | SUNPOWER | 12 | 0 | 8.41 | $5.35 |
| 5 | EMPOWER SOLAR | 11 | 1 | 8.23 | $3.56 |
| 6 | NYSS | 8 | 0 | 9.17 | $3.89 |
| 7 | SUNRISE SOLAR | 7 | 0 | 7.94 | $3.79 |
| 8 | GREEN LOGIC | 6 | 0 | 9.53 | $3.98 |
| 9 | LEVEL SOLAR | 6 | 0 | 6.73 | $5.05 |
| 10 | HARVEST POWER | 5 | 0 | 9.18 | $3.95 |
| 11 | LONG ISLAND POWER SOLUTIONS | 5 | 0 | 10.7 | $3.63 |
| 12 | NRG RESIDENTIAL SOLAR SOLUTIONS | 5 | 0 | 6.19 | $3.72 |
Equipment
What gets installed in 11730
Share of systems with a recorded brand
Modules
SUNPOWER21.1%
LG ELECTRONICS19.5%
QCELLS NORTH AMERICA11.7%
CSI SOLAR7.8%
REC GROUP7.8%
Inverters
ENPHASE ENERGY43.4%
SOLAREDGE31.0%
ABB9.3%
SMA AMERICA8.5%
FRONIUS USA3.9%
Frequently asked
Quick answers about 11730
How many solar installations are there in 11730?
SolarDNA counts 203 active solar installations in East Islip 11730, 198 of them residential, with data through December 23, 2025.
How much does solar cost in 11730?
The median residential system in 11730 cost $4.42 per watt over the trailing twelve months, $0.26/W above the New York median.
Is solar growing in 11730?
Recent growth cannot be measured yet for 11730: too few recent installs (data runs through December 23, 2025).
Who installs solar in 11730?
SUNATION SOLAR SYSTEMS, TESLA, SUNRUN lead the 36 installers with systems in 11730. The full comp set is above.
Is 11730 a good market for solar sales?
11730 scores 47 out of 100 (Great, higher than 76% of U.S. zip markets). With under 500 installations the score is provisional.