Solar Panels in Washington, PA: Cost, Payback & Savings
A typical 8.4 kW home solar system in Washington costs about $30,240 and pays for itself in about 12.6 years, saving roughly $37,922 over 25 years at Pennsylvania's average electricity price of 21.0¢/kWh.
Monthly solar production in Washington
Estimated output of a 8.4 kW south-facing roof system. Jul is the strongest month (1,162 kWh); Dec the weakest (482 kWh).
Solar production (kWh) Typical home use, 817 kWh/month
Solar payback calculator for Washington
Pre-filled with Washington's sunshine and Pennsylvania's average electricity price. Enter your own bill and an installer's price per watt to see your payback.
Leave export credit blank where the utility offers full net metering. Where exports earn less, solar used at home as it's produced is worth the full price and the rest earns the export credit.
How Washington compares
- Each kW of panels here produces about 1,206 kWh a year — 3% less than the Pennsylvania median and 12% less than the US median city (1,371 kWh).
- Payback ranks #75 of 121 Pennsylvania places we cover.
- Sunshine varies little across a state; electricity price, installed cost and how utilities credit exported power drive most of the difference between states.
Net metering, tax credits and incentives in 2026
Pennsylvania offers net metering: power you send to the grid is credited at or near the retail price, so every solar kWh is valued at 21.0¢ here.
There is no federal tax credit for buying home solar installed in 2026. The 30% Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, so the costs and paybacks on this page include no federal credit.
Pennsylvania and local utilities may still offer rebates, performance payments, property-tax or sales-tax exemptions. Search the DSIRE incentives database for Pennsylvania and ask installers which programs they apply for you.
Frequently asked questions
Is solar worth it in Washington, PA?
For a typical home, a solar system pays for itself in about 12.6 years and then keeps saving money. Over 25 years the estimated net savings are $37,922. Verdict: solid long-term investment. Your own payback depends on your roof, your bill and the quotes you get.
How many solar panels do I need in Washington, PA?
A home using 817 kWh a month (the Pennsylvania average) needs about 21 panels of 400 W — a 8.4 kW system — to cover its annual use. Divide your own yearly kWh by 1,206 to get the kW you need.
How much do solar panels cost in Washington, PA?
At 3.60 dollars per watt, a 8.4 kW system costs about $30,240 before any state or utility incentives. There is no federal tax credit for systems installed in 2026.
How much sun does Washington get?
Washington averages 4.5 peak sun hours per day, so each kilowatt of panels produces about 1,206 kWh a year.
Does Pennsylvania have net metering?
Yes. Power sent back to the grid is credited at or near the retail price (21.0¢ per kWh on average).
How much does electricity cost in Pennsylvania?
Residential electricity in Pennsylvania averages 21.0¢ per kWh, and a typical home uses 817 kWh a month (EIA).
Solar payback in nearby places
- Upper Saint Clair12.7 yrs
- Bethel Park12.5 yrs
- South Park Township12.7 yrs
- Mount Lebanon12.6 yrs
- Baldwin12.7 yrs
- Jefferson Hills12.8 yrs
- Whitehall12.7 yrs
- Brentwood12.7 yrs