The Bay Area is California's most mature solar market. PG&E serves most of the region with tiered rates reaching $0.50+/kWh — some of the highest in the US. Under NEM 3.0 (effective April 2023), battery storage is essential to maximize solar value. High home values, tech-industry household incomes, and very high electricity costs make the Bay Area's solar ROI exceptional even with NEM 3.0's reduced export rates. The federal 30% ITC and CA property tax exclusion (Rev. & Tax § 73) apply throughout.