Solar in West Islip, NY
With PSEG Long Island (LIPA)'s electricity at about 28.1¢ per kWh and 1,326 kWh of sun per kW, solar is worth it for a typical West Islip home today: about a 6.8-year payback.
- Payback, typical home
- 6.8 yrsNew York: 6.8 yrs
- 25-year net
- $68,779after paying $16,590
- Sun
- 1,326kWh per kW per year
- Electricity
- 28.1¢56% above U.S. average
A typical West Islip home, by the numbers
| Utility | PSEG Long Island (LIPA) |
|---|---|
| Electricity use | 744 kWh a month |
| Best-value system | 6.7 kW, about 16 panels, 8,887 kWh a year (100% of use) |
| Cost | $21,590, or $16,590 after state incentives |
| First-year savings | $2,378 |
| Payback | 6.8 years |
| Exported power | Full retail net metering (PSEG Long Island (LIPA)) |
Cash purchase, no federal credit, 3.6% yearly rate increases. Run it with your own numbers.
Homes in West Islip
- Owner-occupied homes
- 95%
- Single-family detached
- 96%
- Median home value
- $614k
- Median year built
- 1960
- Population
- 26,865
- Solar installs, last 3 years*
- 39
- Roofs suitable for solar†
- 86%
Census ACS 2020–2024. *Installations in public records for this area's ZIP codes. †Share of 7,918 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Older housing stock. Many homes here were built before 1975. Have the roof and electrical panel checked before signing; a roof or panel upgrade can add thousands. Roof first?
Installers working in West Islip
Companies with the most installations in West Islip's ZIP codes over the last 3 years, from public records. We don't take payment for placement.
- Sunation Solar Systems 12 installs
- Nyss 11 installs
- Empower Solar 6 installs
- Harvest Power 2 installs
- Leviathan Solar 2 installs
- Long Island Power Solutions 2 installs
- Hytech Solar 1 installs
- Kamtech Solar 1 installs
- Nys Essential Power 1 installs
- Surf Clean Energy 1 installs
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in West Islip
Is solar worth it in West Islip, NY?
For a typical home in West Islip, solar is worth it at 2026 prices: a 6.7 kW system costs about $16,590 after state incentives, saves about $2,378 in year one and pays back in about 6.8 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in West Islip?
About 1,326 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 0% less than the New York average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in West Islip?
Most homes in West Islip are served by PSEG Long Island (LIPA), at about 28.1¢ per kWh on average.
How much do solar panels cost in West Islip?
A fair cash price is around $3.20 per watt before incentives, so about $21,590 for a 6.7 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Bay Shore 6.6 yrs
- West Babylon 6.6 yrs
- Lindenhurst 6.7 yrs
- Deer Park 6.5 yrs
- Central Islip 6.8 yrs
- Commack 6.6 yrs
- Plainview 6.8 yrs
- Huntington Station 6.7 yrs
- All of New York
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.