Sol R US Electrical Engineering
120 installs · $2.71/W avg
Western Sierra Inc
8installations on record
$4.04median price per watt
Residential Solar
Installation Statistics
8
Quotes in Database
8 kW
Avg System Size
$45,134
Avg Total Price
Solar Price per Watt
$3.99/W
Average
$4.04/W
Median
Top ZIP Codes
Recent Installations
LocationSystemPrice$/W · $/kWhDate
Benicia, CA 945106.2 kW$24,300$3.94/WApr 14, 2026Contra Costa County, CA7.3 kW13.5 kWh$45,100$3.58/W$1402/kWhFeb 24, 2026Contra Costa County, CA11.6 kW27 kWh$91,300$4.29/W$1540/kWhOct 28, 2025Walnut Creek, CA 945974.4 kW$17,880$4.03/WAug 16, 2025Pinole, CA 945645.6 kW$22,880$4.05/WMay 1, 2025Lafayette, CA 9454910.9 kW13.5 kWh$56,690$3.42/W$1446/kWhApr 7, 2025Contra Costa County, CA8.9 kW13.5 kWh$65,000$4.52/W$1844/kWhJan 17, 2025Clayton, CA 945179.3 kW$37,924$4.09/WJan 15, 2025