Orientation, shading and roof condition drive output.
Batteries
Storage adds backup power and cost.
Incentives
Net-metering terms vary by utility.
Ways to save
How to keep the price down
Replace an old roof first – moving panels later is expensive.
Ask your utility how net metering works for new systems.
Compare quotes by price per watt and estimated yearly output.
How we price
Ranges are typical installed prices for the Seattle–Tacoma–Everett area, checked against published local pricing (sources below). They’re for planning. Your written quote is the real number.
The federal residential credit no longer applies to systems bought with cash or a loan, so compare payback carefully.
Sources
Where these prices come from
Our typical range, $2.50–$3.20 per watt installed in Washington, sits inside what local contractors and cost publishers report. Their numbers differ because each prices a different scope, finish level or home size.
What the range includes
Panels, inverter, racking, wiring, permits and utility interconnection paperwork.
Not included
Roof repairs, electrical panel upgrades, batteries. Tax credits and rebates come off afterwards.
Prices checked September 30, 2026 by Clearview Home Guide.