Port Jefferson, NY solar installation & market data
Updated January 26, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Port Jefferson has 79 solar installations across 1 zip code at a median installed cost of $4.64/W, recent growth not yet measurable, and an installs-weighted Market Score of 45.
Active installations
79
Zip markets
1
Median cost
$4.64/W
12-mo growth
—
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Port Jefferson scores higher than 70% of U.S. zip markets.
Versus New York
How Port Jefferson compares with the state
Installed cost
$0.48/W above
state median $4.16/W
Market score
45 vs 59
New York scores 59
Share of state installs
0.04%
of 187.3K tracked statewide
Battery attach
8.2%
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
Port Jefferson by year
5 installs in the trailing twelve months vs 4 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Port Jefferson
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 12 | 0 | 1 | $5.60 |
| 2 | SUNATION SOLAR SYSTEMS | 9 | 3 | 1 | $3.37 |
| 3 | LONG ISLAND POWER SOLUTIONS | 5 | 0 | 1 | $3.44 |
| 4 | SUNRUN | 5 | 0 | 1 | $4.43 |
| 5 | EMPOWER SOLAR | 3 | 0 | 1 | $3.93 |
| 6 | COOPER ELECTRIC | 2 | 0 | 1 | $4.58 |
| 7 | EASTERN ENERGY SYSTEMS | 2 | 0 | 1 | $3.38 |
| 8 | GREENLEAF SOLAR NY | 2 | 0 | 1 | $3.60 |
| 9 | NRG RESIDENTIAL SOLAR SOLUTIONS | 2 | 0 | 1 | $3.41 |
| 10 | SUNPOWER | 2 | 0 | 1 | $4.34 |
| 11 | HARVEST POWER | 1 | 1 | 1 | $3.04 |
| 12 | HYTECH SOLAR | 1 | 1 | 1 | $4.59 |
Zip markets
Zips in Port Jefferson
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 11777 | 79 | $4.64 | 45 C |