Solar Panels in Lake Stevens, WA: Cost, Payback & Savings

A typical 11.6 kW home solar system in Lake Stevens costs about $34,800 and pays for itself in about 17.5 years, saving roughly $18,832 over 25 years at Washington's average electricity price of 14.4¢/kWh.

Slow paybackpayback 17.5 years
System size
11.6 kW
29 × 400 W panels
Upfront cost
$34,800
at Washington median $3.00/W
First-year savings
$1,677
about $140/month
25-year net savings
$18,832
after paying for the system
Production
11,646 kWh/yr
102% of a typical home's use
Peak sun hours
3.7/day
1,004 kWh per kW per year

Monthly solar production in Lake Stevens

Estimated output of a 11.6 kW south-facing roof system. Jul is the strongest month (1,602 kWh); Dec the weakest (362 kWh).

05001,0001,5002,000Jan: 386 kWhJanFeb: 572 kWhFebMar: 905 kWhMarApr: 1,117 kWhAprMay: 1,321 kWhMayJun: 1,392 kWhJunJul: 1,602 kWhJulAug: 1,575 kWhAugSep: 1,179 kWhSepOct: 698 kWhOctNov: 535 kWhNovDec: 362 kWhDec

Solar production (kWh) Typical home use, 955 kWh/month

Solar payback calculator for Lake Stevens

Pre-filled with Lake Stevens's sunshine and Washington'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.

System
Cost
Year-1 savings
Payback
25-yr net savings

How Lake Stevens compares

Net metering, tax credits and incentives in 2026

Washington offers net metering: power you send to the grid is credited at or near the retail price, so every solar kWh is valued at 14.4¢ 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.

Washington and local utilities may still offer rebates, performance payments, property-tax or sales-tax exemptions. Search the DSIRE incentives database for Washington and ask installers which programs they apply for you.

Frequently asked questions

Is solar worth it in Lake Stevens, WA?

For a typical home, a solar system pays for itself in about 17.5 years and then keeps saving money. Over 25 years the estimated net savings are $18,832. Verdict: slow payback. Your own payback depends on your roof, your bill and the quotes you get.

How many solar panels do I need in Lake Stevens, WA?

A home using 955 kWh a month (the Washington average) needs about 29 panels of 400 W — a 11.6 kW system — to cover its annual use. Divide your own yearly kWh by 1,004 to get the kW you need.

How much do solar panels cost in Lake Stevens, WA?

At 3.00 dollars per watt, a 11.6 kW system costs about $34,800 before any state or utility incentives. There is no federal tax credit for systems installed in 2026.

How much sun does Lake Stevens get?

Lake Stevens averages 3.7 peak sun hours per day, so each kilowatt of panels produces about 1,004 kWh a year.

Does Washington have net metering?

Yes. Power sent back to the grid is credited at or near the retail price (14.4¢ per kWh on average).

How much does electricity cost in Washington?

Residential electricity in Washington averages 14.4¢ per kWh, and a typical home uses 955 kWh a month (EIA).

Solar payback in nearby places

Solar guides