West Coast Solar
565 installs · $3.39/W avg
United Solar Electric
171installations on record
$2.83median price per watt
Residential SolarFinancing Available
Installation Statistics
171
Quotes in Database
8.3 kW
Avg System Size
$41,471
Avg Total Price
Solar Price per Watt
$2.96/W
Average
$2.83/W
Median
$2.57 – $3.17
Typical Range (P25–P75)
Battery Price per kWh
$1301/kWh
Average
$1308/kWh
Median
$1154 – $1453
Typical Range (P25–P75)
Top ZIP Codes
Recent Installations
LocationSystemPrice$/W · $/kWhDate
Contra Costa County, CA9.1 kW20 kWh$52,500$2.63/W$1431/kWhMay 20, 2026Contra Costa County, CA7.1 kW10 kWh$34,800$3.04/W$1317/kWhMar 29, 2026Lafayette, CA 9454925.6 kW$83,000$3.25/WMar 20, 2026Santa Clara County, CA7.7 kW13.5 kWh$44,240$3.40/W$1346/kWhMar 13, 2026Contra Costa County, CA15 kW27 kWh$64,777$2.58/W$962/kWhMar 12, 2026Santa Clara County, CA6.7 kW18.08 kWh$36,200$2.69/W$1011/kWhFeb 25, 2026Contra Costa County, CA11.2 kW27 kWh$51,273$2.46/W$877/kWhFeb 6, 2026Brentwood, CA 945138.6 kW27.2 kWh$74,800$3.62/W$1598/kWhJan 28, 2026Alameda County, CA8.7 kW13.5 kWh$37,800$2.64/W$1090/kWhJan 26, 2026Pleasant Hill, CA 9452310.5 kW27 kWh$52,300$2.60/W$923/kWhJan 26, 2026Cupertino, CA 950146.2 kW10 kWh$46,670$4.22/W$2064/kWhJan 26, 2026Livermore, CA 9455111.3 kW13.5 kWh$51,000$2.99/W$1278/kWhJan 20, 2026Alameda County, CA5.1 kW13.5 kWh$35,800$3.57/W$1290/kWhJan 20, 2026Contra Costa County, CA4.3 kW13.5 kWh$28,250$3.21/W$1079/kWhJan 12, 2026Alameda County, CA10.4 kW27 kWh$48,699$2.42/W$867/kWhJan 9, 2026Mill Valley, CA 949412 kW$12,600$6.16/WJan 5, 2026San Joaquin County, CA5 kW13.5 kWh$30,350$3.10/W$1097/kWhJan 2, 2026Alameda County, CA6.7 kW13.5 kWh$33,735$2.84/W$1100/kWhDec 30, 2025Moraga, CA 9455614 kW30 kWh$66,614$2.14/W$1219/kWhDec 29, 2025Corte Madera, CA 949253.3 kW$11,900$3.58/WDec 29, 2025Page 1 of 9