Pennsylvania's solar case in 2026 is built on two pillars: above-average electricity rates ($0.185/kWh for PECO customers) and an active SREC market. The state has 4.3 peak sun hours per day — not impressive, but workable — and Act 129 requires full retail net metering. What's missing is a state income tax credit. The SREC market partially fills that gap, but SREC prices in Pennsylvania have been volatile.
Disclaimer: All cost and savings estimates use Lawrence Berkeley National Laboratory Tracking the Sun 2024 cost data and EIA Electric Power Monthly 2025 rate data. Section 25D residential solar credits expired December 31, 2025. Get at least three installer quotes before deciding.
Key Takeaways
- A typical 8 kW Pennsylvania system costs ~$22,400 at $2.80/watt (LBNL 2024) — no federal 25D credit applies in 2026
- PECO customers in Philadelphia pay $0.185/kWh (EIA 2025) — higher rates improve solar ROI versus lower-rate states
- Pennsylvania SREC prices have ranged from $20–$40/SREC, providing $294–$588/year in additional revenue for an 8 kW system
- Estimated payback: 9–13 years depending on utility territory and SREC market performance
Pennsylvania Solar Costs in 2026
At $2.80/watt, Pennsylvania sits at the national median for installation costs. An 8 kW system — suitable for a typical Pennsylvania single-family home — costs approximately $22,400 before any incentives. With 4.3 peak sun hours per day, that system produces roughly 12,600 kWh annually.
Electricity rates vary significantly across Pennsylvania's utility territories. PECO (Philadelphia Electric Company) customers face some of the highest rates in the state at approximately $0.185/kWh. PPL Electric customers in central and eastern Pennsylvania pay around $0.165/kWh. West Penn Power (western Pennsylvania) customers pay closer to $0.155/kWh.
| Utility | Approx. Rate (2025) | Annual Savings (8 kW, 4.3 hrs) | Estimated Payback (with SREC) |
|---|---|---|---|
| PECO (Philadelphia area) | $0.185/kWh | ~$2,331/year | 9–11 years |
| PPL Electric (central/eastern PA) | $0.165/kWh | ~$2,079/year | 10–12 years |
| West Penn Power (western PA) | $0.155/kWh | ~$1,953/year | 11–13 years |
Pennsylvania's SREC Market
Pennsylvania is part of a regional SREC market. Pennsylvania SRECs (1 SREC = 1 MWh produced) can be sold to utilities meeting Pennsylvania's Alternative Energy Portfolio Standards. Historical PA SREC prices have ranged from approximately $20–$40 per SREC, though prices have been volatile and have fallen from highs above $100/SREC seen in earlier years.
For an 8 kW system producing 12.6 SRECs annually at $30/SREC, that's approximately $378/year in SREC revenue. At $40/SREC, it's $504/year. Unlike Illinois Shines (fixed 15-year contract price), Pennsylvania SRECs trade on an open market — prices can fall if the market oversupplies. Build your financial case around the lower end of the recent range and treat higher prices as upside.
According to Lawrence Berkeley National Laboratory's Tracking the Sun 2024 report, SREC revenue is a meaningful contributor to payback in states like Pennsylvania and Maryland, but the open-market nature of PA SRECs creates more financial uncertainty than contract-based programs.
Act 129 Net Metering in Pennsylvania
Pennsylvania's Act 129 requires investor-owned utilities — PECO, PPL Electric, Duquesne Light, and West Penn Power — to offer net metering at the full retail rate for residential solar systems. Each exported kWh earns a credit at the same rate you pay to buy electricity, which simplifies the economics considerably.
Full retail net metering means system sizing can target 100% of annual consumption without penalizing exports. Summer surplus offsets winter grid purchases at the same rate. This is a meaningful advantage versus states like California or Arizona where export rates have been reduced.
What Pennsylvania Is Missing
Pennsylvania has no state income tax credit for residential solar. Unlike New York (25%, $5,000 cap) or even Arizona (25%, $1,000 cap), there's no income tax reduction for installing solar. The state's support structure consists of:
- Full retail net metering (strong)
- SREC market (moderate, volatile)
- Property tax exemption on solar added value (available in many counties, but not uniformly statewide — check your county)
No state rebate program comparable to New York's NY-Sun exists. This places Pennsylvania in the "passive incentive" category, where the economics depend on electricity rates and SREC market performance rather than direct program support.
What to Do Next
Confirm your utility and electricity rate.
PECO, PPL, Duquesne Light, and West Penn Power all have different rate structures. Your specific per-kWh rate determines annual savings — the difference between $0.155/kWh and $0.185/kWh moves payback by 1–2 years on a typical system.
Ask installers to show current SREC prices and contract options.
Some Pennsylvania installers offer SREC aggregation services or forward contracts. Getting the current market price for PA SRECs before your installation allows you to build a realistic (not optimistic) SREC revenue assumption into your payback calculation.
Run your ROI estimate with your actual numbers.
The 9–13 year range depends heavily on your utility rate and SREC market timing. Input your specific rate and ZIP code for a Pennsylvania-specific payback estimate before talking to installers.
Get at least three competing quotes.
Pennsylvania has a competitive installer market, particularly in the Philadelphia and Pittsburgh metros. Multi-quote buyers save an average of 15–20% on system cost. Use EnergySage or SolarReviews to collect multiple quotes efficiently.
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Considering a battery for backup? Our Battery Storage Calculator shows payback on Powerwall or Enphase batteries at Pennsylvania electricity rates.
Bottom Line
Pennsylvania solar in 2026 is financially viable, particularly for PECO customers paying $0.185/kWh. The SREC market adds meaningful value when prices are favorable, but the open-market volatility means you shouldn't rely on peak SREC prices in your base case. With full retail net metering and above-average electricity rates, the core solar economics work — payback in the 9–13 year range over a 25-year panel lifespan.
The absence of a state tax credit is the main gap compared to peers like New York and Massachusetts. Pennsylvania homeowners who prioritize energy price protection and have a long time horizon have a reasonable case for solar.
Related Guides
- Solar Panel Cost by State in 2026 — See how Pennsylvania compares to every other state for costs and incentives.
- Is Solar Worth It in 2026? — National payback analysis to put Pennsylvania’s numbers in context.
- Net Metering Guide 2026 — How Pennsylvania’s Act 129 net metering compares to other states.
- Home Solar Panels: The Complete 2026 Guide — Everything you need to know before getting your first solar quote.
