★★★★★
"I signed up for information and was given a very professional assessment of my properties potential with detailed investment information and projected savings. No pressure and very courteous staff members"
ROBIN MCLAUGHLIN
6 months ago
Solar incentives · Washington · 2026
Solar rebates in Washington.
The federal, state, and utility solar incentives available in Washington for 2026, then matched to a vetted local installer.
Programs · Washington
5
active programs & rules in 2026
Retail-rate net metering with an April 30 annual forfeit · verified 2026-09-01
Want a fast quote?
See which Washington programs you qualify for
We do the math for your address and match you with one vetted installer. Free, no obligation.
Quote request received.
A vetted installer covering Washington will follow up within 1 business day. Reference ID:
Prefer the full guided estimate? Do the 60-second quote →
The full list
5 programs available right now in Washington.
Tax credit
#01
Federal Residential Clean Energy Credit (Section 25D) - ENDED
The 30 percent federal Residential Clean Energy Credit under Section 25D expired for property placed in service after December 31, 2025. Cash and loan purchases made now receive no federal tax credit. Because Washington has no state income tax and therefore no state credit to fall back on, this removal bites harder here than in states with their own credit.
Source ↗ Tax credit
#02
Federal Commercial ITC (Section 48E) - via Lease / PPA
Section 48E, the commercial Clean Electricity Investment Credit, survives at 30 percent and is available to third-party owners of residential systems under leases and power purchase agreements. The provider claims it and may reflect part of the value in the rate offered. Ask what they claim and what actually reaches you, and confirm with a tax advisor.
Source ↗ Tax credit
#03
Sales and Use Tax Exemption (RCW 82.08.962 / 82.12.962)
From July 1, 2019 through December 31, 2029, residential purchasers receive a 100 percent exemption from state and local sales and use tax on machinery and equipment used directly in generating electricity by a solar energy system capable of no more than 100 kW AC. The exemption covers installation labour as well as equipment, which is unusual and makes it larger than it first appears. Nothing is claimed and nothing is filed: it should simply be absent from your quoted price.
Source ↗ Net metering
#04
Net Metering (RCW 80.60) - April 30 forfeit
Systems up to 100 kW are credited for excess kilowatt hours at the retail rate, with the credit appearing on the following billing period. On April 30 of each calendar year any remaining unused kilowatt hour credit accumulated during the previous year is granted to the electric utility without any compensation to the customer-generator. So a system that generates an annual surplus gives that surplus away every spring.
Source ↗ Program
#05
No Washington State Income Tax Credit
Washington levies no personal income tax, so there is no state solar tax credit and there never has been. Guides that describe a stack of federal plus state credits are describing other states. What Washington offers instead is the sales and use tax exemption and net metering, and after the federal residential credit ended those are effectively the whole of the support.
Net metering · Washington
Retail-rate net metering with an April 30 annual forfeit
Washington net metering under RCW 80.60 covers systems of up to 100 kW. The utility measures net electricity produced or consumed during the billing period, and excess kilowatt hours generated in a period are credited on the following period bill at the retail rate. The rule that should shape your system design is the annual reset. On April 30 of each calendar year, any remaining unused kilowatt hour credit accumulated during the previous year is granted to the electric utility without any compensation to the customer-generator. There is no payout, no rollover into the next year and no negotiation. April is also close to the worst possible month for a Washington household to be holding surplus, since it falls after a long dark winter has drawn credits down and just as spring production is recovering. The practical consequence is that a system sized to produce more than the household consumes across a year is a system that donates the difference. Build from your last twelve months of bills and ask your installer what the projection assumes happens to credit remaining on April 30.
Worth checking before you sign:
taking a rebate can change your net-metering terms, and export credit rules
differ by utility. Your matched installer confirms the exact numbers for
your address.
Our vetted installer partner
4.6 stars from 778 real Google reviews.
Every review here is real, attributed, and links back to the installer's verified Google profile.
4.6 ★
Average rating
778
Google reviews
100%
Real & attributed
★★★★★
"I was communicating with Josh. He put together a detailed proposal very quickly and provided two options to consider.Very pleased with his professionalism."
John Olthuis
8 months ago
★★★★★
"We had difficulty with our monitoring site ans called for help. Ken not only got us back on the site, but introduced us to some new features. He spent a great deal of time with us and was patient and gave clear instructions as he walked us through the process. Very satisfied with support."
Colleen Brazeau
3 weeks ago
Turn this into a real quote.
See which of these Washington programs you qualify for, with the math done for your address. Free, no obligation.
Get my Washington quote