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Headline numbers

Key figures from our analysis of California residential solar installations (2015–2025).

7.3 GW
Total residential solar capacity added
Installed residential PV capacity across California (2015–2025)
$33.5B
Total residential solar system cost
Sum of reported system costs across California (2015–2025)
2015–2025
Data coverage period
California Distributed Generation Statistics (DGStats) Interconnected Project Sites Dataset + Low-Income Solar PV Data
30.5 MW
Low-income programme solar capacity added
Installed capacity recorded in SASH Single-family Affordable Solar Homes Program / MASH Multi-family Affordable Housing Program / DAC-SASH Disadvantaged Communities – Single-Family Solar Homes (2015–2025)
$160M
Low-income programme system cost
Sum of reported system costs in programme records (2015–2025)
$95M
Incentives paid (low-income programmes)
Total subsidy dollars distributed through SASH Single-family Affordable Solar Homes Program / MASH Multi-family Affordable Housing Program / DAC-SASH Disadvantaged Communities – Single-Family Solar Homes (2015–2025)