Westchester County, NY solar installation & market data
Updated July 31, 2026 By The SolarDNA Data Team
Westchester County has 14,739 solar installations across 72 zip codes at a median installed cost of $3.76/W, installations down 17.6% over the trailing twelve months, and an installs-weighted Market Score of 51.
Active installations
14,739
Zip markets
72
Median cost
$3.76/W
12-mo growth
▼ 17.6%
Installers active
201
County Market Score
Excellent · installs-weighted across 72 zips
Best zip in Westchester County scores higher than 99% of U.S. zip markets.
Versus New York
How Westchester County compares with the state
Installed cost
$0.40/W below
state median $4.16/W
Market score
51 vs 59
New York scores 59
Share of state installs
7.87%
of 187.3K tracked statewide
Battery attach
3.8%
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
Next-12-month outlook: 1,250–1,528 installs (midpoint 1,389)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
Westchester County by year
1,523 installs in the trailing twelve months vs 1,849 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Westchester County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 3,450 | 168 | 67 | $3.23 |
| 2 | TESLA | 1,523 | 9 | 69 | $4.91 |
| 3 | INFINITY SOLAR SYSTEMS | 863 | 163 | 58 | $3.65 |
| 4 | TRINITY SOLAR | 700 | 40 | 58 | $4.30 |
| 5 | LONG ISLAND POWER SOLUTIONS | 693 | 54 | 63 | $3.23 |
| 6 | SUNRISE SOLAR SOLUTIONS | 670 | 0 | 49 | $4.36 |
| 7 | SUNPOWER | 563 | 0 | 59 | $4.83 |
| 8 | WILTSHIRE RENEWABLE ENERGY SYSTEMS | 548 | 0 | 60 | $2.83 |
| 9 | IGS ENERGY | 455 | 0 | 49 | $3.68 |
| 10 | SUNBLUE ENERGY | 413 | 0 | 55 | $3.48 |
| 11 | SUNNOVA ENERGY | 410 | 0 | 52 | $3.76 |
| 12 | VENTURE HOME SOLAR | 281 | 41 | 52 | $4.46 |
| 13 | NRG RESIDENTIAL SOLAR SOLUTIONS | 274 | 0 | 51 | $3.58 |
| 14 | MOMENTUM SOLAR | 274 | 7 | 41 | $4.35 |
| 15 | NEW YORK STATE SOLAR FARM | 268 | 61 | 48 | $3.50 |
| 16 | GREEN HYBRID ENERGY SOLUTIONS | 244 | 30 | 53 | $3.49 |
| 17 | MERCURY SOLAR | 198 | 0 | 47 | $6.86 |
| 18 | KILOWATT SYSTEMS | 182 | 0 | 44 | $4.13 |
| 19 | ROSS SOLAR GROUP | 165 | 0 | 27 | $4.13 |
| 20 | KASSELMAN SOLAR | 150 | 6 | 47 | $3.31 |
| 21 | PLUGPV | 147 | 33 | 46 | $4.59 |
| 22 | EMPOWER SOLAR | 131 | 10 | 41 | $4.00 |
| 23 | SUNGEVITY | 127 | 0 | 43 | $4.47 |
| 24 | DIRECT ENERGY SOLAR | 118 | 0 | 37 | $3.66 |
| 25 | IGS SOLAR | 112 | 58 | 39 | $3.93 |
Zip markets
Zips in Westchester County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 10562 | 754 | $3.85 | 53 A |
| 10567 | 710 | $3.78 | 52 A |
| 10710 | 652 | $3.69 | 53 A |
| 10566 | 556 | $3.75 | 58 A |
| 10704 | 527 | $3.86 | 51 A |
| 10583 | 521 | $3.69 | 43 C |
| 10573 | 513 | $3.79 | 52 A |
| 10701 | 508 | $3.91 | 51 A |
| 10520 | 458 | $3.70 | 52 A |
| 10598 | 448 | $3.56 | 53 A |
| 10605 | 425 | $3.85 | 53 A |
| 10603 | 403 | $3.95 | 50 B |
| 10703 | 397 | $3.82 | 51 A |
| 10801 | 390 | $3.75 | 51 A |
| 10543 | 364 | $3.99 | 50 B |
| 10705 | 352 | $3.82 | 51 A |
| 10607 | 310 | $3.75 | 51 A |
| 10591 | 310 | $3.46 | 52 A |
| 10523 | 297 | $3.62 | 51 A |
| 10804 | 271 | $3.57 | 51 A |
| 10803 | 267 | $3.87 | 50 B |
| 10510 | 256 | $3.70 | 51 A |
| 10570 | 251 | $3.77 | 50 A |
| 10530 | 239 | $3.60 | 51 A |
| 10522 | 223 | $3.93 | 50 B |
| 10549 | 223 | $3.62 | 51 A |
| 10606 | 216 | $3.69 | 51 A |
| 10538 | 214 | $3.95 | 49 B |
| 10547 | 213 | $3.67 | 51 A |
| 10514 | 208 | $3.41 | 52 A |
| 10706 | 199 | $4.25 | 48 B |
| 10550 | 196 | $4.00 | 49 B |
| 10580 | 180 | $3.95 | 49 B |
| 10595 | 165 | $3.71 | 50 B |
| 10502 | 164 | $3.42 | 52 A |
| 10604 | 162 | $3.66 | 50 A |
| 10548 | 151 | $4.07 | 49 B |
| 10709 | 132 | $3.77 | 50 B |
| 10528 | 128 | $3.80 | 50 B |
| 10532 | 124 | $3.61 | 51 A |
| 10504 | 122 | $3.53 | 51 A |
| 10707 | 119 | $3.87 | 49 B |
| 10536 | 118 | $3.71 | 50 B |
| 10533 | 112 | $4.04 | 48 B |
| 10552 | 111 | $3.94 | 49 B |
| 10511 | 111 | $4.04 | 48 B |
| 10708 | 106 | $3.74 | 50 B |
| 10553 | 104 | $3.90 | 49 B |
| 10805 | 99 | $3.85 | 49 B |
| 10594 | 92 | $3.53 | 51 A |
| 10590 | 73 | $3.50 | 51 A |
| 10506 | 72 | $3.35 | 52 A |
| 10576 | 61 | $3.30 | 52 A |
| 10560 | 51 | $3.57 | 50 B |
| 10577 | 49 | $3.62 | 50 B |
| 10588 | 47 | $4.11 | 48 B |
| 10589 | 33 | $3.34 | 51 A |
| 10546 | 28 | $3.52 | 51 A |
| 10507 | 26 | $4.13 | 48 B |
| 10517 | 21 | $3.87 | 49 B |
| 10601 | 18 | $3.26 | 52 A |
| 10505 | 15 | $3.45 | 51 A |
| 10526 | 15 | $3.18 | 52 A |
| 10535 | 13 | $2.94 | 53 A |
| 10596 | 11 | $4.00 | 48 B |
| 10501 | 11 | $3.40 | 51 A |
| 10527 | 7 | $3.30 | 51 A |
| 10518 | 6 | $3.40 | 51 A |
| 10597 | 5 | $4.17 | 47 B |
| 10578 | 3 | $2.10 | 57 A |
| 10519 | 2 | $4.17 | 47 B |
| 10503 | 1 | $3.75 | 49 B |