Washington County, NY solar installation & market data
Updated August 11, 2026 By The SolarDNA Data Team
Washington County has 904 solar installations across 19 zip codes at a median installed cost of $4.20/W, installations up 46.8% over the trailing twelve months, and an installs-weighted Market Score of 48.
Active installations
904
Zip markets
19
Median cost
$4.20/W
12-mo growth
▲ 46.8%
Installers active
68
County Market Score
Great · installs-weighted across 19 zips
Best zip in Washington County scores higher than 96% of U.S. zip markets.
Versus New York
How Washington County compares with the state
Installed cost
$0.04/W above
state median $4.16/W
Market score
48 vs 59
New York scores 59
Share of state installs
0.48%
of 187.3K tracked statewide
Battery attach
1.4%
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: 67–91 installs (midpoint 79)
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
Washington County by year
69 installs in the trailing twelve months vs 47 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Washington County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 211 | 0 | 13 | $5.47 |
| 2 | APEX ENERGY TEK | 109 | 5 | 17 | $3.60 |
| 3 | KASSELMAN SOLAR | 107 | 11 | 13 | $3.54 |
| 4 | PLUGPV | 62 | 18 | 12 | $3.71 |
| 5 | MONOLITH SOLAR | 52 | 0 | 12 | $3.75 |
| 6 | RGS ENERGY | 36 | 0 | 10 | $6.76 |
| 7 | AMERICAN ENERGY CARE | 31 | 0 | 11 | $3.97 |
| 8 | SUNCOMMON | 27 | 0 | 9 | $4.70 |
| 9 | NRG RESIDENTIAL SOLAR SOLUTIONS | 21 | 0 | 8 | $3.14 |
| 10 | EDF RENEWABLE ENERGY | 19 | 0 | 9 | $8.55 |
| 11 | POSIGEN | 15 | 0 | 8 | $4.49 |
| 12 | POSITIVE ENERGY NY | 14 | 0 | 7 | $4.93 |
| 13 | POWER GURU | 14 | 2 | 4 | $4.04 |
| 14 | WILTSHIRE RENEWABLE ENERGY SYSTEMS | 13 | 0 | 8 | $3.99 |
| 15 | HIGH PEAKS SOLAR | 13 | 0 | 7 | $3.55 |
| 16 | SUNRUN | 11 | 0 | 6 | $4.16 |
| 17 | SUNGEVITY | 10 | 0 | 7 | $4.17 |
| 18 | EMPIRE SOLAR SOLUTIONS | 10 | 7 | 8 | $3.94 |
| 19 | SAME SUN OF VERMONT | 9 | 0 | 3 | $4.29 |
| 20 | INFINITY SOLAR SYSTEMS | 7 | 1 | 5 | $3.83 |
| 21 | ENLIGHTEN POWER SOLUTIONS | 7 | 0 | 4 | $5.25 |
| 22 | TRINITY SOLAR | 7 | 0 | 7 | $3.92 |
| 23 | ACTIVE SOLAR DEVELOPMENT | 6 | 1 | 4 | $3.56 |
| 24 | RENEWABLE POWER SYSTEMS | 6 | 0 | 3 | $8.05 |
| 25 | SOLAR WORKS | 5 | 0 | 3 | $9.59 |
Zip markets
Zips in Washington County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 12834 | 131 | $4.13 | 48 B |
| 12828 | 119 | $4.25 | 48 B |
| 12839 | 117 | $4.65 | 46 B |
| 12816 | 97 | $3.87 | 49 B |
| 12809 | 79 | $4.62 | 46 B |
| 12832 | 76 | $4.39 | 47 B |
| 12827 | 71 | $3.80 | 49 B |
| 12865 | 58 | $3.75 | 50 B |
| 12887 | 51 | $3.72 | 50 B |
| 12057 | 39 | $4.97 | 44 C |
| 12873 | 26 | $4.24 | 47 B |
| 12838 | 8 | $4.26 | 47 B |
| 12849 | 7 | $4.50 | 46 B |
| 12861 | 7 | $3.12 | 52 A |
| 12837 | 6 | $3.06 | 53 A |
| 12821 | 6 | $4.32 | 47 B |
| 12819 | 3 | $2.94 | 53 A |
| 12823 | 2 | $4.40 | 46 B |
| 12841 | 1 | $4.19 | 47 B |