effect energy
82 installs · $2.98/W avg
SouthWest Sun Solar
373installations on record
$3.27median price per watt
Residential Solar
Installation Statistics
373
Quotes in Database
5.7 kW
Avg System Size
$16,519
Avg Total Price
Solar Price per Watt
$3.30/W
Average
$3.27/W
Median
$3.11 – $3.54
Typical Range (P25–P75)
Battery Price per kWh
$1385/kWh
Average
$1459/kWh
Median
Top ZIP Codes
Recent Installations
LocationSystemPrice$/W · $/kWhDate
San Gabriel, CA 917763.7 kW$11,000$2.99/WMay 29, 2026Garden Grove, CA 928403.7 kW$11,500$3.13/WMay 28, 2026San Gabriel, CA 917763.7 kW$11,000$2.99/WMay 28, 2026Garden Grove, CA 928433.3 kW$11,200$3.42/WMay 22, 2026Garden Grove, CA 928433.7 kW$11,000$2.99/WMay 22, 2026Westminster, CA 926832.6 kW$9,500$3.64/WMay 21, 2026West Covina, CA 9179014.2 kW30 kWh$24,704—May 19, 2026La Puente, CA 917413.2 kW$10,000$3.11/WMay 19, 2026Santa Ana, CA 927046.9 kW10 kWh$11,497—May 19, 2026Simi Valley, CA 9306513.8 kW30 kWh$78,000$2.53/W$1438/kWhMay 18, 2026Huntington Beach, CA 9264611.5 kW25 kWh$72,000$2.99/W$1504/kWhMay 14, 2026Westminster, CA 926832.6 kW$9,500$3.64/WMay 12, 2026Garden Grove, CA 928405.2 kW10 kWh$8,600—May 9, 2026Brea, CA 9282112.9 kW25 kWh$50,405$1.95/W$1011/kWhMay 7, 2026Garden Grove, CA 928443.7 kW$11,500$3.13/WMay 5, 2026Midway City, CA 926553.4 kW$10,800$3.21/WMay 5, 2026Buena Park, CA 906217.3 kW10 kWh$11,107—May 4, 2026West Covina, CA 9179122.9 kW$13,500—Apr 29, 2026San Diego, CA 921263.5 kW$10,000$2.90/WApr 24, 2026Brentwood, CA 945137.3 kW15 kWh$16,272—Apr 23, 2026Page 1 of 19