Simply Solar
592 installs · $3.37/W avg
Nor Cal Solar Construction
23installations on record
$3.25median price per watt
Residential SolarCommercial SolarFinancing Available
Installation Statistics
23
Quotes in Database
10.5 kW
Avg System Size
$47,784
Avg Total Price
Solar Price per Watt
$3.35/W
Average
$3.25/W
Median
$2.87 – $3.83
Typical Range (P25–P75)
Battery Price per kWh
$1105/kWh
Average
$1041/kWh
Median
Top ZIP Codes
Recent Installations
LocationSystemPrice$/W · $/kWhDate
Rohnert Park, CA 949285.4 kW$21,802$4.01/WApr 28, 2026Petaluma, CA 9495412.1 kW$48,720$4.02/WApr 23, 2026Petaluma, CA 949525.9 kW$61,040—Apr 22, 2026Santa Rosa, CA 954016.6 kW$33,614$5.11/WApr 8, 2026Petaluma, CA 9495414.4 kW$52,224$3.63/WMar 27, 2026Petaluma, CA 9495411.2 kW$48,384$4.33/WMar 6, 2026San Pablo, CA 948067.1 kW27 kWh$50,143$3.15/W$1030/kWhFeb 19, 2026Sonoma County, CA9.3 kW49.68 kWh$47,158$1.65/W$640/kWhFeb 18, 2026Petaluma, CA 949546.3 kW16 kWh$36,949$2.99/W$1142/kWhFeb 9, 2026Santa Clara County, CA12.5 kW27 kWh$63,716$2.85/W$1036/kWhJan 29, 2026Petaluma, CA 949545.9 kW15 kWh$31,259$2.66/W$1045/kWhJan 28, 2026Santa Rosa, CA 954095.3 kW11.4 kWh$31,199$3.24/W$1236/kWhJan 13, 2026Napa County, CA9.7 kW13.5 kWh$44,046$2.87/W$1191/kWhJan 8, 2026San Ramon, CA 945837.9 kW$21,600$2.74/WJan 6, 2026Sonoma County, CA8.5 kW13.5 kWh$35,473$2.54/W$1026/kWhDec 19, 2025Sonoma County, CA3.1 kW$22,332—Nov 21, 2025Windsor, CA 954929.2 kW24 kWh$53,996$3.25/W$1001/kWhNov 21, 2025Petaluma, CA 949543.8 kW$12,150$3.22/WOct 27, 2025Hidden Valley Lake, CA 954674 kW$15,642$3.88/WSep 29, 2025Petaluma, CA 9495415.4 kW24 kWh$87,931$3.83/W$1215/kWhJul 16, 2025Page 1 of 2