West Islip, NY solar installation & market data
Updated June 23, 2025Provisional score · under 500 installs By The SolarDNA Data Team
West Islip has 364 solar installations across 1 zip code at a median installed cost of $4.52/W, recent growth not yet measurable, and an installs-weighted Market Score of 47.
Active installations
364
Zip markets
1
Median cost
$4.52/W
12-mo growth
—
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in West Islip scores higher than 78% of U.S. zip markets.
Versus New York
How West Islip compares with the state
Installed cost
$0.36/W above
state median $4.16/W
Market score
47 vs 59
New York scores 59
Share of state installs
0.19%
of 187.3K tracked statewide
Battery attach
2.8%
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
West Islip by year
20 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 West Islip
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 62 | 0 | 1 | $5.25 |
| 2 | SUNATION SOLAR SYSTEMS | 45 | 0 | 1 | $3.79 |
| 3 | TESLA | 40 | 0 | 1 | $5.60 |
| 4 | NYSS | 27 | 0 | 1 | $4.22 |
| 5 | LONG ISLAND POWER SOLUTIONS | 15 | 0 | 1 | $3.66 |
| 6 | SUNPOWER | 15 | 0 | 1 | $4.88 |
| 7 | NRG RESIDENTIAL SOLAR SOLUTIONS | 12 | 0 | 1 | $3.51 |
| 8 | HARVEST POWER | 11 | 0 | 1 | $4.00 |
| 9 | SUNWIZE TECHNOLOGIES | 9 | 0 | 1 | $4.33 |
| 10 | EMPOWER SOLAR | 8 | 0 | 1 | $3.75 |
| 11 | LEVEL SOLAR | 7 | 0 | 1 | $5.10 |
| 12 | HYTECH SOLAR | 6 | 1 | 1 | $3.63 |
Zip markets
Zips in West Islip
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 11795 | 364 | $4.52 | 47 B |