Pennsylvania solar installation & market data
The Pennsylvania solar market at a glance.
Pennsylvania has about 105,252 solar systems totalling 1.35 GW, as reported by its utilities through July 2026. 123 MW of residential solar was added in the trailing twelve months, up 48.7% on the twelve months before. 2.8% of owner-occupied homes have gone solar and 1.5% of solar customers have a battery. SolarDNA tracks 88,461 individual installations here, with a median residential cost of $5.99 per watt, from 369 installers.
Pennsylvania's SolarDNA Market Score: 50 out of 100.
Pennsylvania scores 50 out of 100 on SolarDNA's Market Score, a 0-to-100 scale benchmarked against every other state market. That is higher than 78% of U.S. states. Grade B (Great).
The score combines 5 subscores, each computed from observed market data:
- Velocity (99): trailing-12-month growth in solar added versus the prior twelve months, so accelerating markets score higher.
- Cost (6): median installed $/W relative to the national median (a cheaper market scores higher).
- Incentives (48): net-metering coverage, RECs a new system can earn, state tax credit, rebate program and tax exemptions (components listed below).
- Resource (15): annual solar irradiance, so the same system produces more where this score is high.
- Depth (77): proven demand: how many systems are already installed, with a bonus for markets that show adoption without being saturated.
SREC market with modest prices.
Federal: Federal residential credit (25D) ended for systems placed in service after Dec 31, 2025. Third-party-owned systems can still use the commercial credit (48E) through 2027 under construction-start rules.
State-level averages hide wide variation. Here's how to go deeper in the app:
- 1Narrow to a zip codeZip metrics give a far more accurate picture of the exact neighborhoods you are considering.
- 2Apply filtersFilter by score, growth, $/W, adoption and permits to reach the markets that actually match your model.
- 3Benchmark the installersSee who already wins there, how fast they are growing, and what they charge per watt.
How SolarDNA defines these metrics
Solar systems
Solar systems is the market-size figure: the systems utilities report on their lines, plus an estimate (sized from reported capacity) for systems outside net metering. It is current for every state.
How SolarDNA calculates solar systems →Tracked installations
Tracked installations are the individual residential, commercial and utility-scale systems SolarDNA holds a record for. SolarDNA de-duplicates the same system across records. Pricing, installers, equipment and every zip-level figure come from these records.
How SolarDNA calculates tracked installations →Median installed cost
Median installed cost is the middle price per watt (DC) that homeowners paid for a residential system in the trailing twelve months, before incentives. Quartiles show the spread.
How SolarDNA calculates median installed cost →Adoption rate
Adoption rate is the share of owner-occupied homes with a residential solar system. It measures how saturated a market is, not how fast it is growing.
How SolarDNA calculates adoption rate →12-month growth
For a state, growth compares the residential solar capacity added in the trailing twelve months with the twelve months before, from utility-reported totals with one-off reporting corrections smoothed out. For cities and zip codes it compares tracked installations.
How SolarDNA calculates 12-month growth →Battery share
Battery share is the portion of a state's solar customers whose system includes a battery, as reported by utilities.
How SolarDNA calculates battery share →Permits
Permits count the solar building permits filed in the last twelve months. They lead installations by several months, which makes them the earliest read on demand.
How SolarDNA calculates permits →Market Score
SolarDNA's Market Score grades each market from 0 to 100 on solar sales potential, weighing velocity, cost, incentives, solar resource and installer depth. Markets are benchmarked against every other market in the country, and the letter grade is set on a curve: A is the top 10% of markets, C the middle 40%, F the bottom 10%.
How SolarDNA calculates market score →See what a specific Pennsylvania zip code looks like
Drop in any Pennsylvania zip code and SolarDNA opens its market card: score, installs, median $/W, growth and permits, benchmarked against the state.
Dive deeper into the Pennsylvania market
Market size & momentum
Systems, capacity, monthly additions, battery share and solar customers by utility.
- •How many solar systems are there in Pennsylvania?
- •Is solar still growing in Pennsylvania?
- •Which utility territories are adding the most?
Pricing & economics
Installed $/W, quartiles, system sizes and simple payback.
- •How much does solar cost in Pennsylvania?
- •Is $/W falling in Pennsylvania?
- •What is the median system size?
Growth & adoption
Installs by year, adoption, TAM penetration and battery attach.
- •Is solar demand growing in Pennsylvania?
- •How saturated is the market?
- •How many systems add a battery?
Installers
The league table: volume, momentum, system size and pricing per installer.
- •Who installs the most in Pennsylvania?
- •Which installers are growing fastest?
- •What do they charge per watt?
Utilities & incentives
Retail rates by utility, net metering, SREC value and the planned utility pipeline.
- •What are electricity rates in Pennsylvania?
- •Which utilities offer net metering?
- •How big is the utility-scale pipeline?
How big Pennsylvania's solar market is, and where it is heading
Totals reported by Pennsylvania's utilities through July 2026 (latest months are preliminary)
Trailing-12-month residential capacity added carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Solar customers by utility in Pennsylvania
Net-metered solar customers through July 2026
| Utility | Solar customers | Capacity | Added, 12 mo | Growth | With battery |
|---|---|---|---|---|---|
| PPL Electric Utilities Corp | 34,026 | 563 MW | 4,792 | ▲ 24.7% | — |
| FirstEnergy Pennsylvania Electric Co | 30,703 | 421 MW | 5,774 | ▲ 26.7% | 5.2% |
| PECO Energy Co | 26,668 | 245 MW | 0 | — | — |
| Duquesne Light Co | 12,422 | 118 MW | 2,045 | ▲ 19.6% | — |
| UGI Utilities, Inc | 463 | 5 MW | 40 | — | 1.3% |
What solar costs in Pennsylvania
Residential systems, trailing twelve months
How fast Pennsylvania is going solar
10,997 tracked installs in the trailing twelve months vs 13,119 before
Top installers in Pennsylvania
Ranked by installations on record. Installer names in Pennsylvania's records end in 2014; newer systems are counted without one
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | ASTRUM SOLAR | 529 | 0 | 9.74 | $5.48 |
| 2 | GREENSPRING ENERGY | 353 | 0 | 7.6 | $6.01 |
| 3 | SUNLION ENERGY SYSTEMS | 305 | 0 | 20.73 | $5.29 |
| 4 | ENDLESS MTN SOLAR SERVICES | 260 | 0 | 6.42 | $6.92 |
| 5 | JK MECHANICAL | 258 | 0 | 22.11 | $5.22 |
| 6 | HEAT SHED | 238 | 0 | 7.8 | $7.00 |
| 7 | ADVANCED SOLAR | 230 | 0 | 24.56 | $5.97 |
| 8 | EOS ENERGY | 137 | 0 | 9.22 | $6.13 |
| 9 | I NEED SOLAR COM | 135 | 0 | 29.33 | $5.75 |
| 10 | KC GREEN ENERGY | 129 | 0 | 18.79 | $5.21 |
| 11 | STANDARD SOLAR | 129 | 0 | 7.63 | $5.38 |
| 12 | CONLYN SOLAR PRO | 114 | 0 | 9.91 | $6.10 |
| 13 | EDF RENEWABLE ENERGY | 112 | 0 | 6.62 | $6.25 |
| 14 | ENERGY INDEPENDENT SOLUTIONS | 110 | 0 | 13.12 | $5.06 |
| 15 | SUNPOWER | 98 | 0 | 8.99 | $7.89 |
Top zip markets in Pennsylvania
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Growth | Score |
|---|---|---|---|---|
| 17015 Carlisle | 808 | $5.69 | ▼ 17.3% | 35 D |
| 17331 Hanover | 787 | $5.63 | ▼ 33.1% | 31.3 F |
| 17112 Harrisburg | 671 | $6.19 | ▲ 2.5% | 36.9 D |
| 17050 Mechanicsburg | 649 | $5.85 | ▼ 4.9% | 36.6 D |
| 17543 Lititz | 636 | $5.67 | ▼ 14.1% | 35.1 D |
| 19020 Bensalem | 595 | $6.01 | ▲ 39.1% | 46.5 B |
| 17601 Lancaster | 579 | $5.69 | ▼ 7.6% | 36.3 D |
| 17202 Chambersburg | 556 | $5.34 | ▼ 9.5% | 37.4 D |
| 19320 Coatesville | 524 | $5.82 | ▼ 5.0% | 36.1 D |
| 17111 Harrisburg | 512 | $6.00 | ▼ 35.6% | 36.4 D |
| 17013 Carlisle | 490 | $6.26 | ▼ 26.6% | 35.1 D |
| 17055 Mechanicsburg | 487 | $6.00 | ▼ 17.6% | 31.9 F |
| 17404 York | 467 | $5.56 | ▼ 38.3% | 28.7 F |
| 17042 Lebanon | 465 | $5.98 | ▲ 1.1% | 36.5 D |
| 15001 Aliquippa | 459 | $5.18 | ▼ 9.2% | 37.7 D |
Counties in Pennsylvania
Zip markets grouped by county · click for the county market
| County | Zip markets | Installs |
|---|---|---|
| Allegheny County | 96 | 8,889 |
| Philadelphia County | 49 | 6,668 |
| York County | 38 | 6,100 |
| Lancaster County | 55 | 5,904 |
| Montgomery County | 68 | 5,885 |
| Bucks County | 56 | 5,512 |
| Berks County | 47 | 4,702 |
| Cumberland County | 18 | 4,025 |
| Chester County | 39 | 3,867 |
| Dauphin County | 26 | 3,332 |
| Delaware County | 42 | 3,324 |
| Lehigh County | 28 | 3,154 |
Utilities and retail rates
Implied residential rate per utility
| Utility | Type | Res. customers | ¢/kWh | Net metering |
|---|---|---|---|---|
| FirstEnergy Pennsylvania Electric Co | Investor Owned | 1,464,054 | 15.4 | ✓ |
| PECO Energy Co | Investor Owned | 1,205,013 | 14.7 | ✓ |
| PPL Electric Utilities Corp | Investor Owned | 797,773 | 12.3 | ✓ |
| Duquesne Light Co | Investor Owned | 434,171 | 19.5 | ✓ |
| Reliant Energy Northeast LLC | Retail Power Marketer | 142,526 | 13.2 | — |
| Energy Harbor Corp. | Retail Power Marketer | 105,658 | 10.8 | — |
| Inspire Energy Holdings, LLC | Retail Power Marketer | 89,889 | 12.7 | — |
| AEP Energy | Retail Power Marketer | 89,725 | 9.3 | — |
Other solar markets in Pennsylvania
Three ways to slice Pennsylvania's 88.5K installations
See how the market splits by sector, by battery attach and by installer, updated with every refresh.
See all breakdownsWhen demand peaks in Pennsylvania
Quick answers about Pennsylvania's market
🛡 Why trust SolarDNA data?
How many solar installations are there in Pennsylvania?
How much does solar cost in Pennsylvania?
Is the Pennsylvania solar market growing?
What is the solar adoption rate in Pennsylvania?
Is Pennsylvania a good market for solar sales?
How many solar installers work in Pennsylvania?
How many solar permits were filed in Pennsylvania?
How current is Pennsylvania's solar data?
There's a lot more inside the SolarDNA app.
- ◇Zip and city market pages
- ◇Installer league tables
- ◇Territory builder
- ◇Solarizer deal estimates
- ◇Permit activity where reported
- ◇Export the data