Pennsylvania Solar at a Glance
Pennsylvania isn’t the sunniest state in the country, but it’s a solid solar market. Average residential electricity rates run $0.16–$0.18/kWh — above the national average — and the state has mandatory net metering, a Solar Renewable Energy Credit (SREC) program, sales tax exemption, and property tax exemption for solar. Combine that with electricity rates rising ~4% per year and most PA homeowners find solar pencils out comfortably.
The short version: installed solar in Pennsylvania runs $2.70–$3.60/watt, putting a typical 8kW system at $21,600–$28,800 installed. Note: the 30% federal Investment Tax Credit (ITC) expired December 31, 2025, so these are the full out-of-pocket costs for 2026 installations. PA state incentives (SRECs, sales tax exemption, property tax exemption) still apply. Payback periods land in the 10–14 year range depending on system size, location, and usage.
If you’re paying $130+/month for electricity in Pennsylvania and own your home, solar will almost certainly pay off — the only question is how quickly.
Cost Per Watt in Pennsylvania
Installed solar costs in Pennsylvania average $2.70–$3.60/watt in 2026, with the mid-market sitting around $3.00–$3.20/watt for a quality system with Tier 1 panels and reputable installation. That’s roughly in line with the national average of $2.80–$3.50/watt.
A few factors affect where your quote lands within that range:
- Panel brand and efficiency: Budget panels from lesser-known manufacturers run cheaper; premium Tier 1 panels (SunPower, Panasonic, REC) cost more but produce more per square foot and come with longer warranties.
- Roof complexity: A simple south-facing roof with a single plane is cheaper to install than a multi-directional roof with multiple penetrations.
- Installer competition in your area: Philadelphia and Pittsburgh have more installers competing for business than rural Central PA — more competition usually means sharper pricing.
- Battery storage: Adding a home battery (like the Tesla Powerwall) adds $9,000–$15,000 to the project and increases cost per watt substantially, but also increases your energy independence.
- System size: Larger systems have lower per-watt costs due to economies of scale. A 12kW system typically costs less per watt than a 6kW system from the same installer.
Total System Costs by Size
The table below shows realistic installed cost ranges for Pennsylvania homeowners in 2026. All figures assume a standard roof installation with Tier 1 panels. These are gross installed costs — the 30% federal ITC expired December 31, 2025 and is no longer available for 2026 installations.
| System Size | Est. Monthly Usage Covered | Installed Cost | Cost Per Watt |
|---|---|---|---|
| 6 kW | ~550–650 kWh/mo | $16,200–$21,600 | $2.70–$3.60 |
| 7 kW | ~640–760 kWh/mo | $18,900–$25,200 | $2.70–$3.60 |
| 8 kW | ~730–870 kWh/mo | $21,600–$28,800 | $2.70–$3.60 |
| 10 kW | ~920–1,090 kWh/mo | $27,000–$36,000 | $2.70–$3.60 |
| 12 kW | ~1,100–1,300 kWh/mo | $32,400–$43,200 | $2.70–$3.60 |
Monthly usage estimates assume 4.2 peak sun hours/day (PA average). Cost ranges reflect market variation across PA installers. PA sales tax exemption (6%) applies — these prices already reflect no state sales tax on solar equipment.
Not sure which system size you need? Our solar sizing calculator takes your monthly bill and zip code and gives you a personalized kW recommendation — sized to cover your actual usage without over-building.
Pennsylvania Solar Incentives in 2026
PA homeowners have access to a solid stack of incentives that meaningfully reduce the out-of-pocket cost of going solar.
Federal ITC — No Longer Available
Important: The 30% federal Investment Tax Credit (ITC) for residential solar expired December 31, 2025. Homeowners who installed solar before that date could claim a dollar-for-dollar tax credit equal to 30% of their system cost. For 2026 installations, no federal solar tax credit exists. This means the full installed cost is your out-of-pocket expense, offset only by the PA state and local incentives listed below.
While this increases upfront costs, the economics of solar in Pennsylvania still work thanks to high electricity rates ($0.16–$0.18/kWh and rising), strong net metering, and the SREC program. Payback periods are longer than they were with the ITC, but 25-year returns remain substantial.
1. Pennsylvania Net Metering
Pennsylvania state law requires all electric utilities to offer net metering to residential solar customers. When your panels produce more electricity than you’re using — common on sunny summer days — the excess goes to the grid and your utility credits you at the full retail rate. Those credits roll forward month-to-month to offset winter bills when production drops.
Net metering is why right-sizing your PA system matters: you want to cover roughly 90–100% of your annual usage. Over-building means you produce excess you can’t use, while under-building leaves money on the table.
2. Pennsylvania SREC Program
Pennsylvania’s Solar Renewable Energy Credit (SREC) program lets homeowners earn one credit for every 1,000 kWh (1 MWh) their panels produce. These credits can be sold to electric utilities that need them to meet state renewable portfolio standards.
PA SREC values fluctuate based on market demand. In 2025–2026, PA SRECs have traded in the $10–$35/MWh range — modest income (a 10kW system in PA produces roughly 11–12 MWh/year, so $110–$420/year), but it’s passive revenue that stacks on top of your electricity bill savings.
3. PA Sales Tax Exemption
Pennsylvania exempts solar energy equipment from the 6% state sales tax. On a $30,000 system, that’s $1,800 in savings that most homeowners don’t realize they’re getting.
4. Property Tax Exemption
Solar panels add real value to your home — studies consistently show 3–6% home value increases. Pennsylvania law exempts that added value from property tax assessment. You get the appreciation without the higher tax bill.
How much will solar save you in Pennsylvania? →
Enter your monthly electric bill and PA zip code. Get your estimated annual savings, system cost range, and payback period — specific to your location and utility.
Calculate My PA Solar Savings →Pennsylvania Financing Options
Most PA homeowners don’t pay cash for solar — and they don’t need to. Here are the four main ways to finance:
Solar Loan
The most common approach. You own the system from day one, so you qualify for all PA incentives (SRECs, property tax exemption). Rates typically run 3.99%–7.99% APR depending on credit score and loan term (10–25 years). At 6.99% APR over 15 years on a $27,000 system, monthly payments are around $243 — still competitive with rising electricity costs for most PA homeowners.
Home Equity Loan or HELOC
If you have home equity, borrowing against it typically offers the lowest interest rates (often 5–7% in 2026 conditions) and potential tax-deductibility of the interest. The downside: your home is the collateral. For homeowners with substantial equity and good credit, this is often the cheapest financing path.
Solar Lease or PPA
You don’t own the panels — a third party does. You either pay a fixed monthly lease payment or buy power from the panels at a locked rate (Power Purchase Agreement). Zero upfront cost is the draw; the tradeoff is that you don’t get the SREC income or the property value boost. Leases and PPAs make sense for homeowners who can’t qualify for loans or prefer predictable monthly costs without a large upfront investment.
Cash Purchase
If you have the capital, cash is the simplest path — no debt, no interest. You get the full SREC income with no offsetting loan cost. A $27,000 investment that saves ~$2,200/year has a ~12-year payback, then generates essentially free electricity for the remaining 13+ years of the system’s life.
ROI Timeline: What to Expect in Pennsylvania
Pennsylvania gets an average of 4.0–4.5 peak sun hours per day, with Philadelphia closer to 4.5 and Pittsburgh closer to 4.0. That’s less than Arizona (5.5–6.5 hours) but comparable to much of the Northeast and Midwest. The higher electricity rates partially compensate for the reduced sun.
Here’s a worked example for a typical Philadelphia-area homeowner:
| Detail | Value |
|---|---|
| System size | 9 kW |
| Installed cost | $27,000 |
| Annual production (est.) | ~11,200 kWh |
| Annual electricity savings (at $0.17/kWh) | ~$1,900 |
| SREC income (est.) | ~$200–$400/yr |
| Total annual benefit | ~$2,100–$2,300/yr |
| Simple payback period | ~11–13 years |
25-Year Cumulative Savings
With electricity rates rising ~4% per year, the savings grow every year. Here’s how the numbers build out over time, assuming 3.5% annual rate escalation and 0.5%/year panel degradation:
| Year | Annual Savings | Cumulative Savings | Net Position |
|---|---|---|---|
| Year 1 | $2,150 | $2,150 | −$24,850 |
| Year 3 | $2,310 | $6,630 | −$20,370 |
| Year 5 | $2,480 | $11,480 | −$15,520 |
| Year 8 | $2,780 | $19,440 | −$7,560 |
| Year 10 | $2,980 | $25,300 | −$1,700 |
| Year 12 | $3,250 | $31,500 | ~Breakeven |
| Year 15 | $3,530 | $41,900 | +$14,900 |
| Year 25 | $4,970 | $76,400 | +$49,400 |
Assumes $27,000 installed cost (no federal ITC — expired Dec 2025), 3.5%/year electricity rate escalation, 0.5%/year panel degradation, SREC income included. Illustrative estimates — your actual results depend on location, usage, and utility.
Breakeven around year 11–12, then 13–14 more years of essentially free electricity. Total net gain over 25 years: ~$49,400 on a $27,000 investment. That’s still a strong return — and it comes with energy independence and protection from rising utility rates on top.
PA Utility Considerations
Pennsylvania has several major electric utilities, and the details of your net metering setup and rate structure vary by provider:
- PECO (Philadelphia area): Strong net metering, time-of-use rate options available. PECO’s rates have risen sharply — ~20% over the past 3 years — making solar increasingly attractive for its customers.
- PPL Electric (central PA, Lehigh Valley, Harrisburg): Standard net metering, reasonable rate structure. PPL customers have seen steady rate increases and are a common demographic for solar adoption.
- Met-Ed / Penelec (western PA, Allentown area): Both are FirstEnergy subsidiaries with standard net metering. Rural areas may have longer grid interconnection timelines.
- Duquesne Light (Pittsburgh area): Standard net metering, Pittsburgh’s cloud cover means systems should be sized conservatively — don’t assume Philadelphia sun numbers apply.
If you’re in a rural area served by a municipal utility or electric cooperative, verify net metering terms directly — state law requires it for IOUs (investor-owned utilities) but co-ops and municipalities have some flexibility.
What size solar system does your PA home need? →
Enter your monthly bill and zip code. Get the exact kW recommendation for your home — factoring in Pennsylvania sun hours and your utility’s rate structure.
Find My System Size →When Solar Makes Less Sense in PA
A high electricity rate improves the case for solar, but not every PA homeowner is a good candidate:
- Heavy shading from trees or buildings. Pennsylvania is forested. A heavily shaded roof can lose 30–50% of its potential production, stretching payback periods significantly. If major trees can’t be trimmed, solar may not pencil out.
- Roof needing replacement in under 5 years. Removing and reinstalling panels for a roof job costs $2,000–$5,000. If your roof is near end of life, do both projects together — many PA installers coordinate with roofers and can reduce the combined cost.
- Limited budget for upfront costs. Without the federal ITC (which expired Dec 2025), the full installed cost is your out-of-pocket expense. If you can’t afford the upfront investment or qualify for a solar loan, a solar lease or PPA may be a better fit — though the long-term returns are smaller.
- Planning to sell in 2–3 years. Solar adds home value, but you’re unlikely to fully recoup a $20,000+ investment on a short holding period unless your market is particularly hot.
Still not sure if solar makes sense for your specific situation? Our solar decision tool asks 8 questions and gives you a direct recommendation — no sales calls, no pressure.
FAQ
How much do solar panels cost in Pennsylvania in 2026?
Installed solar in PA runs $2.70–$3.60/watt in 2026. A typical 8kW system costs $21,600–$28,800 installed. Note: the 30% federal ITC expired December 31, 2025, so these are full out-of-pocket costs. PA state incentives (SRECs, sales tax exemption, property tax exemption) still apply. Use our savings calculator to see the full picture for your location.
What incentives are available for solar in Pennsylvania?
PA homeowners can access: (1) PA net metering — retail-rate credit for excess solar exported to the grid; (2) PA SREC program — earn and sell solar energy credits; (3) PA sales tax exemption — no 6% state sales tax on solar equipment; (4) Property tax exemption — added home value from solar excluded from assessment. The 30% federal ITC expired December 31, 2025 and is no longer available for 2026 installations.
How long does solar take to pay back in Pennsylvania?
Most PA homeowners see solar pay back in 10–14 years, depending on system size, location, shading, and utility rates. Payback periods are longer than in prior years because the 30% federal ITC expired in 2025. Philadelphia-area homeowners tend to see shorter payback than Pittsburgh due to slightly more sun. After payback, the system continues producing essentially free electricity for another 11–15 years. See your estimated payback period here.
Does Pennsylvania have net metering?
Yes — state law requires all investor-owned utilities (PECO, PPL, Met-Ed, Penelec, Duquesne Light) to offer net metering to residential solar customers. Excess solar production goes to the grid and is credited at the retail rate, rolling forward to offset future bills. This is one of the most valuable incentives for PA homeowners.
What size solar system do I need in Pennsylvania?
Most PA homes need a 6–12kW system. Small homes paying $80–$110/month typically need 5–7kW. Mid-size homes paying $120–$160/month typically need 7–9kW. Larger homes paying $170+/month need 9–12kW. PA’s 4.0–4.5 peak sun hours means slightly larger systems than a comparable home in a sunnier state. Get your exact system size recommendation here.