Solar Panels in Washington
Everything you need to know about going solar in Washington (WA).
| Average Sun Hours/Day | 3.3 hours |
| Average System Cost (8 kW) | $24,800 |
| Federal Tax Credit (30%) | -$7,440 |
| Net Cost After Federal Credit | $17,360 |
| Estimated Annual Savings | $1,253/year |
| Estimated Payback Period | 13.9 years |
| State Solar Incentives | Yes — state incentives available |
Solar Incentives in Washington
Federal Investment Tax Credit (ITC)
The 30% federal solar tax credit is available to all Washington residents. For an 8 kW system, this saves approximately $7,440.
State Incentives Available
Washington offers additional state-level solar incentives, which may include tax credits, rebates, net metering, or renewable energy certificates. Check with your local utility and the DSIRE database for current programs.
Recommended Solar Panels for Washington
With lower sun exposure (3.3 hours/day), Washington homeowners need high-efficiency panels to maximize output:
- LONGi Hi-MO 7 — High efficiency N-type panel, excellent value
- Trina Solar Vertex S+ — Reliable performance, competitive pricing
- REC Alpha Pure-RX — Premium panel with industry-leading warranty
Frequently Asked Questions
How much do solar panels cost in Washington?
The average cost of an 8 kW solar system in Washington is approximately $24,800 before incentives. After the 30% federal tax credit, the net cost is around $17,360.
How much can I save with solar in Washington?
An 8 kW solar system in Washington can save approximately $1,253 per year on electricity bills, with an estimated payback period of 13.9 years.
Does Washington have solar incentives?
Yes, Washington offers state-level solar incentives in addition to the federal 30% tax credit.