Solar in Maple Valley, WA
With Puget Sound Energy's electricity at about 18.2¢ per kWh and 987 kWh of sun per kW, solar is a close call for a typical Maple Valley home today: about a 14.2-year payback.
- Payback, typical home
- 14.2 yrsWashington: 16.2 yrs
- 25-year net
- $26,678after paying $23,240
- Sun
- 987kWh per kW per year
- Electricity
- 18.2¢1% above U.S. average
A typical Maple Valley home, by the numbers
| Utility | Puget Sound Energy |
|---|---|
| Electricity use | 863 kWh a month |
| Best-value system | 8.4 kW, about 20 panels, 8,295 kWh a year (80% of use) |
| Cost | $23,240 |
| First-year savings | $1,513 |
| Payback | 14.2 years |
| Exported power | 13¢/kWh (Puget Sound Energy) |
Cash purchase, no federal credit, 3.8% yearly rate increases. Run it with your own numbers.
Homes in Maple Valley
- Owner-occupied homes
- 83%
- Single-family detached
- 84%
- Median home value
- $725k
- Median year built
- 2001
- Population
- 28,287
- Roofs suitable for solar†
- 81%
Census ACS 2020–2024. †Share of 5,529 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Maple Valley
Public installation records for Washington don't name installers, so we can't rank local companies here. Browse installers in Washington.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Maple Valley
Is solar worth it in Maple Valley, WA?
For a typical home in Maple Valley, solar is a close call at 2026 prices: a 8.4 kW system costs about $23,240 after state incentives, saves about $1,513 in year one and pays back in about 14.2 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Maple Valley?
About 987 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 11% less than the Washington average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Maple Valley?
Most homes in Maple Valley are served by Puget Sound Energy, at about 18.2¢ per kWh on average.
How much do solar panels cost in Maple Valley?
A fair cash price is around $2.85 per watt before incentives, so about $23,240 for a 8.4 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Kent 13.9 yrs
- Auburn 13.9 yrs
- Renton 13.9 yrs
- Issaquah 13.8 yrs
- Des Moines 12.9 yrs
- SeaTac 13.5 yrs
- Federal Way 13.1 yrs
- Sammamish 14.1 yrs
- All of Washington
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.