Princeton, NJ solar installation & market data
Updated July 27, 2026 By The SolarDNA Data Team
Princeton has 945 solar installations across 5 zip codes, installations up 103.0% over the trailing twelve months, and an installs-weighted Market Score of 64.
Active installations
945
Zip markets
5
Median cost
—
12-mo growth
▲ 103.0%
Installers active
110
City Market Score
Excellent · installs-weighted across 5 zips
Best zip in Princeton scores higher than 99% of U.S. zip markets.
Versus New Jersey
How Princeton compares with the state
Installed cost
—
state median —/W
Market score
64 vs 62
New Jersey scores 62
Share of state installs
0.39%
of 244.1K tracked statewide
Battery attach
100.0%
state 99.8%
Statewide momentum
▲ 20.1%
residential solar added in New Jersey, 12 months through Jul 2026
Statewide market
239.1K systems
10.4% of homes · utility-reported through Jul 2026
Next-12-month outlook: 131–177 installs (midpoint 154)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Growth & pricing
Princeton by year
134 installs in the trailing twelve months vs 66 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Princeton
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 71 | 6 | 2 | — |
| 2 | TESLA | 58 | 10 | 1 | — |
| 3 | MOMENTUM SOLAR | 50 | 15 | 2 | — |
| 4 | EXACT ELECTRIC | 44 | 0 | 2 | — |
| 5 | GREEN POWER ENERGY | 40 | 4 | 2 | — |
| 6 | TRINITY SOLAR | 33 | 4 | 1 | — |
| 7 | SEA BRIGHT SOLAR | 22 | 5 | 1 | — |
| 8 | AMPERICON | 18 | 0 | 1 | — |
| 9 | SOLAR ENERGY WORLD | 15 | 5 | 1 | — |
| 10 | SUNPOWER | 13 | 0 | 1 | — |
| 11 | SUNNYMAC | 13 | 1 | 1 | — |
| 12 | SOLAR ME | 12 | 0 | 1 | — |
| 13 | PUBLIC SERVICE SOLAR | 12 | 5 | 2 | — |
| 14 | EMT RENEWABLES | 10 | 2 | 1 | — |
| 15 | AD ENERGY | 10 | 0 | 2 | — |
| 16 | NJ SOLAR POWER | 10 | 3 | 1 | — |
| 17 | SUNTUITY | 10 | 0 | 1 | — |
| 18 | GREENTECH SOLAR USA | 9 | 0 | 1 | — |
| 19 | INFINITY SOLAR SYSTEMS | 9 | 6 | 2 | — |
| 20 | SOLAR MITE SOLUTIONS | 9 | 6 | 1 | — |
| 21 | EXACT SOLAR | 8 | 4 | 1 | — |
| 22 | OVER THE TOP SOLAR SOLUTIONS | 8 | 8 | 1 | — |
| 23 | A CLEAR ALTERNATIVE | 8 | 0 | 1 | — |
| 24 | IMPACT SOLAR | 7 | 2 | 1 | — |
| 25 | TERRASOL ENERGIES | 6 | 0 | 1 | — |