Axiom 360
113 installs · $3.19/W avg
Interstate Roofing
12installations on record
$3.83median price per watt
Residential SolarCommercial Solar
Installation Statistics
12
Quotes in Database
6.6 kW
Avg System Size
$33,666
Avg Total Price
Solar Price per Watt
$3.96/W
Average
$3.83/W
Median
Top ZIP Codes
Recent Installations
LocationSystemPrice$/W · $/kWhDate
Berkeley, CA 947038.4 kW10 kWh$53,908$3.79/W$2221/kWhFeb 2, 2026Piedmont, CA 946115.9 kW$30,210$5.16/WDec 19, 2025Oakland, CA 946119.2 kW$35,190$3.83/WDec 16, 2025Piedmont, CA 946113.9 kW$30,863—Nov 3, 2025Piedmont, CA 9461114.9 kW$49,300$3.31/WOct 15, 2025Piedmont, CA 946118.3 kW5 kWh$33,439$2.98/W$1767/kWhSep 8, 2025Berkeley, CA 947077 kW10 kWh$37,842$3.16/W$1564/kWhAug 12, 2025Piedmont, CA 946112.7 kW5 kWh$20,660$4.38/W$1797/kWhFeb 25, 2025Piedmont, CA 946104.2 kW10 kWh$38,860$4.61/W$1955/kWhFeb 6, 2025Alameda County, CA3.8 kW5 kWh$18,310—Dec 23, 2024Alameda County, CA4.2 kW5 kWh$22,546—Dec 12, 2024Albany, CA 947067.4 kW$32,870$4.42/WDec 3, 2024