Solar Panel Cost & Installation Data in King County, Washington
Observed project records in the LBNL Tracking the Sun 2024 release. Historical coverage varies by place and year.
Observed Records
1,385
Reported Capacity
12 MW
Observed Avg Cost
$3.56/W
Median: $3.42/W
Avg System Size
8.8 kW
11.9¢/kWh
State Residential Rate (EIA 2024)
$1,150
Modeled Annual Savings
-1.4%
vs State Average Cost
Primary source: LBNL Tracking the Sun 2024 release. A minimum sample of 25 records is required; figures are not a complete county census or a current installer quote.