Solar installations in Pennsylvania
24,332 recorded installations — prices, growth by year, county breakdown and the installers doing the work.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Most active
Top installers in Pennsylvania
| # | Installer | Installs in PA |
|---|---|---|
| 1 | PosiGen Provider LLC | 2,968 |
| 2 | Vivint Solar | 1,293 |
| 3 | SOLAR STATES LLC | 1,111 |
| 4 | Astrum Solar | 657 |
| 5 | Greenspring Energy | 439 |
| 6 | Palmetto Solar | 400 |
| 7 | Sunlion Energy Systems | 356 |
| 8 | Energy Independent Solutions,LLC | 337 |
| 9 | Endless Mtn Solar Services | 315 |
| 10 | Advanced Solar | 283 |
| 11 | Jk Mechanical | 278 |
| 12 | Heat Shed | 276 |
| 13 | Velocity Energy and Home Solutions | 259 |
| 14 | Sunnymac | 245 |
| 15 | Trinity Solar | 231 |
Growth
Installations by year
Bars: recorded installs · right column: median $/W that year.
By county
Solar by county in Pennsylvania
| County | Installs | Capacity | Median $/W |
|---|---|---|---|
| Philadelphia County | 7,834 | 93.0 MW | $6.47/W |
| Allegheny County | 1,589 | 59.1 MW | $2.34/W |
| Lancaster County | 1,508 | 127.2 MW | $5.50/W |
| Berks County | 1,244 | 68.6 MW | $5.80/W |
| Chester County | 1,062 | 40.0 MW | $6.09/W |
| Montgomery County | 927 | 49.4 MW | $6.13/W |
| Bucks County | 859 | 34.4 MW | $6.25/W |
| York County | 669 | 91.6 MW | $5.93/W |
| Cumberland County | 425 | 53.6 MW | $5.86/W |
| Northampton County | 396 | 35.4 MW | $6.13/W |
| Lehigh County | 368 | 28.0 MW | $6.15/W |
| Dauphin County | 350 | 28.3 MW | $5.81/W |
| Lebanon County | 337 | 24.5 MW | $5.75/W |
| Delaware County | 335 | 9.6 MW | $6.22/W |
| Luzerne County | 241 | 10.9 MW | $6.65/W |
| Schuylkill County | 214 | 20.9 MW | $6.04/W |
| Franklin County | 207 | 129.0 MW | $5.78/W |
| Monroe County | 204 | 12.9 MW | $6.35/W |
| Adams County | 184 | 87.5 MW | $5.54/W |
| Centre County | 164 | 17.1 MW | $6.50/W |
| Columbia County | 158 | 14.2 MW | $6.19/W |
| Perry County | 155 | 9.6 MW | $5.82/W |
| Northumberland County | 130 | 134.1 MW | $5.31/W |
| Westmoreland County | 130 | 56.3 MW | $5.21/W |
| Lackawanna County | 127 | 8.1 MW | $6.40/W |
| Lycoming County | 119 | 13.9 MW | $5.50/W |
| Wayne County | 102 | 1.5 MW | $5.85/W |
| Washington County | 98 | 30.7 MW | $5.50/W |
| Snyder County | 96 | 57.8 MW | $5.77/W |
| Carbon County | 94 | 30.9 MW | $5.81/W |
| Erie County | 89 | 25.9 MW | $5.85/W |
| Union County | 88 | 6.1 MW | $5.61/W |
| Beaver County | 80 | 150.3 MW | $5.50/W |
| Montour County | 75 | 9.6 MW | $5.42/W |
| Bradford County | 65 | 2.7 MW | $6.67/W |
| Mifflin County | 59 | 8.8 MW | $5.61/W |
| Butler County | 58 | 8.7 MW | $5.05/W |
| Juniata County | 58 | 49.3 MW | $5.55/W |
| Blair County | 55 | 1.5 MW | $5.69/W |
| Pike County | 54 | 1.1 MW | $6.15/W |
| Cambria County | 53 | 3.0 MW | $5.75/W |
| Susquehanna County | 46 | 1.1 MW | $6.29/W |
| Fayette County | 41 | 60.8 MW | $6.06/W |
| Clinton County | 38 | 685 kW | $5.83/W |
| Mercer County | 36 | 39.7 MW | $5.33/W |
| Somerset County | 33 | 22.0 MW | $5.84/W |
| Bedford County | 27 | 1.2 MW | $4.85/W |
| Wyoming County | 27 | 261 kW | $6.38/W |
| Indiana County | 23 | 853 kW | $5.49/W |
| Fulton County | 20 | 83.5 MW | $6.25/W |
| Huntingdon County | 20 | 1.5 MW | $5.55/W |
| Tioga County | 19 | 2.5 MW | $6.70/W |
| Crawford County | 18 | 357 kW | $5.90/W |
| Lawrence County | 15 | 2.8 MW | $5.74/W |
| Greene County | 14 | 496 kW | $6.93/W |
| Clearfield County | 13 | 89.4 MW | $6.06/W |
Counties derived from installation ZIP codes (Census ZCTA crosswalk) — approximate at boundaries. Counties with fewer than 50 recorded installs are shown but not indexed.
Frequently asked questions
How many solar installations are there in Pennsylvania?
PanelCensus records 24,332 solar installations in Pennsylvania, totalling 2.5 GW of capacity — compiled from LBNL's Tracking the Sun, city permit records, state programs and USGS/EIA utility-scale data. (Coverage depends on what the state publishes, so actual totals are higher.)
How much does solar cost per watt in Pennsylvania?
The median installed price across priced systems in Pennsylvania is $5.75/W pre-incentive. Year-by-year medians are shown on this page.
Who are the biggest solar installers in Pennsylvania?
PosiGen Provider LLC has the most recorded installations in Pennsylvania (2,968), followed by Vivint Solar (1,293).