Best Cities for Solar in Washington
Washington has 11 tracked locations with an average of 3.9 hrs/day of peak sun and $783/year in average solar savings. The best location is Pasco (99301) with $933/year in savings.
11
tracked locations
3.9 hrs
avg peak sun/day
$783
avg annual savings
12.5 yrs
avg payback
Solar Data by ZIP Code in Washington
| City / ZIP | Peak Sun | 6kW Cost | Annual Savings | Payback |
|---|---|---|---|---|
| Pasco 99301 | 4.6 hrs | $18,600 | $933/yr | 13.9 yrs |
| Pasco 98301 | 4.5 hrs | $18,600 | $912/yr | 14.3 yrs |
| Clarkston 99401 | 4.4 hrs | $18,600 | $892/yr | 14.6 yrs |
| Wenatchee 98801 | 4.2 hrs | $18,600 | $851/yr | 15.3 yrs |
| Spokane 99201 | 4.0 hrs | $18,600 | $811/yr | 16.1 yrs |
| Amboy 98601 | 3.6 hrs | $18,600 | $730/yr | 17.9 yrs |
| Auburn 98001 | 3.5 hrs | $18,600 | $709/yr | 18.4 yrs |
| Tacoma 98401 | 3.5 hrs | $18,600 | $709/yr | 18.4 yrs |
| Seattle 98101 | 3.4 hrs | $18,600 | $689/yr | 18.9 yrs |
| Everett 98201 | 3.4 hrs | $18,600 | $689/yr | 18.9 yrs |
| Olympia 98501 | 3.4 hrs | $18,600 | $689/yr | 18.9 yrs |
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Data verified March 2026 · Source: NREL, DSIRE, EIA