Syosset, NY 11791 solar market data
Updated February 6, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Syosset 11791 has 270 solar installations at a median installed cost of $4.38/W, recent growth not yet measurable, and a Market Score of 48 — higher than 78% of U.S. zip markets.
Versus New York
How 11791 compares with the state
Installed cost
$0.22/W above
state median $4.16/W
Market score
48 vs 59
New York scores 59
Share of state installs
0.14%
of 187.3K tracked statewide
Battery attach
10.6%
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
11791 by year
14 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 11791
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNATION SOLAR SYSTEMS | 41 | 3 | 9.89 | $4.07 |
| 2 | TESLA | 38 | 2 | 6.67 | $5.60 |
| 3 | EMPOWER SOLAR | 18 | 0 | 12.27 | $3.89 |
| 4 | SUNPOWER | 18 | 0 | 9.7 | $5.14 |
| 5 | NYSS | 17 | 0 | 8.4 | $4.04 |
| 6 | SUNRUN | 12 | 0 | 7.77 | $3.66 |
| 7 | NRG RESIDENTIAL SOLAR SOLUTIONS | 11 | 0 | 6.5 | $3.43 |
| 8 | LONG ISLAND POWER SOLUTIONS | 9 | 0 | 12.56 | $3.48 |
| 9 | GREEN LOGIC | 7 | 0 | 10.48 | $3.91 |
| 10 | MOUND SOLAR | 6 | 0 | 6.74 | $5.00 |
| 11 | HARVEST POWER | 5 | 0 | 14.29 | $4.21 |
| 12 | SUNGEVITY | 5 | 0 | 8.86 | $3.67 |
Equipment
What gets installed in 11791
Share of systems with a recorded brand
Modules
SUNPOWER15.8%
QCELLS NORTH AMERICA14.5%
CSI SOLAR13.9%
LG ELECTRONICS10.9%
TRINA SOLAR9.7%
Inverters
ENPHASE ENERGY43.4%
SOLAREDGE28.9%
SMA AMERICA8.4%
ABB6.6%
SUNPOWER3.6%
Frequently asked
Quick answers about 11791
How many solar installations are there in 11791?
SolarDNA counts 270 active solar installations in Syosset 11791, 263 of them residential, with data through February 6, 2026.
How much does solar cost in 11791?
The median residential system in 11791 cost $4.38 per watt over the trailing twelve months, $0.22/W above the New York median.
Is solar growing in 11791?
Recent growth cannot be measured yet for 11791: too few recent installs (data runs through February 6, 2026).
Who installs solar in 11791?
SUNATION SOLAR SYSTEMS, TESLA, EMPOWER SOLAR lead the 44 installers with systems in 11791. The full comp set is above.
Is 11791 a good market for solar sales?
11791 scores 48 out of 100 (Great, higher than 78% of U.S. zip markets). With under 500 installations the score is provisional.