Washington County, PA solar installation & market data
Updated October 2, 2026 By The SolarDNA Data Team
Washington County has 685 solar installations across 38 zip codes at a median installed cost of $5.20/W, installations up 42.6% over the trailing twelve months, and an installs-weighted Market Score of 39.
Active installations
685
Zip markets
38
Median cost
$5.20/W
12-mo growth
▲ 42.6%
Installers active
15
County Market Score
Good · installs-weighted across 38 zips
Best zip in Washington County scores higher than 76% of U.S. zip markets.
Versus Pennsylvania
How Washington County compares with the state
Installed cost
$0.80/W below
state median $5.99/W
Market score
39 vs 50
Pennsylvania scores 50
Share of state installs
0.77%
of 88.5K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▲ 48.7%
residential solar added in Pennsylvania, 12 months through Jul 2026
Statewide market
105.3K systems
2.8% of homes · utility-reported through Jul 2026
Next-12-month outlook: 170–230 installs (midpoint 200)
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
174 installs in the trailing twelve months vs 122 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 | ADAM SOLAR RESOURCES | 12 | 0 | 6 | $4.60 |
| 2 | ENERGY INDEPENDENT SOLUTIONS | 11 | 0 | 7 | $4.87 |
| 3 | SOLAR POWER INDUSTRIES | 8 | 0 | 3 | $5.53 |
| 4 | ASTRUM SOLAR | 8 | 0 | 6 | $5.83 |
| 5 | SOLARTEC | 3 | 0 | 2 | $5.97 |
| 6 | STANDARD SOLAR | 2 | 0 | 2 | $4.88 |
| 7 | VOX ENERGY SOLUTIONS | 2 | 0 | 2 | $7.70 |
| 8 | GGE | 1 | 0 | 1 | $8.75 |
| 9 | TRI STATE ELECTRICITY | 1 | 0 | 1 | $11.77 |
| 10 | METZ ELECTRIC | 1 | 0 | 1 | $4.91 |
| 11 | COMMUNITY NETWORKS | 1 | 0 | 1 | $4.62 |
| 12 | LEGION WHOLESALE SUPPLY | 1 | 0 | 1 | $5.50 |
| 13 | WEST PENN ENERGY SOLUTIONS | 1 | 0 | 1 | $5.35 |
| 14 | FERRY ELECTRIC | 1 | 0 | 1 | $7.00 |
| 15 | SPOTTS BROTHERS | 1 | 0 | 1 | $3.20 |
Zip markets
Zips in Washington County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 15301 | 119 | $5.53 | 37 D |
| 15317 | 118 | $5.91 | 35 D |
| 15057 | 110 | $4.09 | 43 C |
| 15330 | 38 | $5.39 | 37 D |
| 15063 | 36 | $4.78 | 40 C |
| 15367 | 32 | $5.66 | 36 D |
| 15332 | 28 | $3.82 | 44 C |
| 15021 | 26 | $5.41 | 37 D |
| 15022 | 20 | — | 42 C |
| 15342 | 20 | — | 42 C |
| 15060 | 18 | — | 42 C |
| 15323 | 18 | $5.20 | 38 D |
| 15360 | 12 | $4.00 | 43 C |
| 15314 | 9 | $6.65 | 32 F |
| 15329 | 8 | $8.93 | 32 F |
| 15376 | 6 | $5.67 | 35 D |
| 15423 | 6 | — | 42 C |
| 15033 | 6 | — | 42 C |
| 15067 | 6 | — | 42 C |
| 15019 | 5 | $4.48 | 41 C |
| 15419 | 5 | $3.20 | 47 B |
| 15055 | 4 | — | 42 C |
| 15311 | 4 | $4.34 | 42 C |
| 15312 | 4 | — | 42 C |
| 15347 | 3 | — | 42 C |
| 15313 | 3 | — | 42 C |
| 15340 | 3 | $8.75 | 32 F |
| 15324 | 3 | — | 42 C |
| 15333 | 2 | — | 42 C |
| 15078 | 2 | $4.62 | 40 C |
| 15321 | 2 | — | 42 C |
| 15477 | 2 | — | 42 C |
| 15363 | 2 | — | 42 C |
| 15483 | 1 | — | 42 C |
| 15038 | 1 | — | 42 C |
| 15054 | 1 | — | 42 C |
| 15331 | 1 | — | 42 C |
| 15004 | 1 | — | 42 C |