California has the most developed residential solar market in the United States, which creates both advantages and complications for homeowners making installation decisions. The advantages: more installers, more competition, and more financing options than almost anywhere else. The complications: more variability in installer quality, a utility environment that has changed significantly in recent years, and a regulatory landscape that requires specific local knowledge to navigate well.
The Net Energy Metering Shift
Understanding how to pick a solar installer in California requires understanding how the utility environment has changed. The transition to NEM 3.0 significantly reduced the value of exported solar energy for most California customers, which has changed the economics of solar-only systems and made battery storage much more financially attractive.
Installers who are still proposing solar-only systems without modeling the NEM 3.0 export rate impact are either working from outdated assumptions or not doing the analysis thoroughly. Ask specifically how the proposal accounts for NEM 3.0 and what export rate assumptions are built in.
Roofing Integration Requirements
California’s Title 24 building code and local jurisdictions have specific requirements for solar installations that affect both roofing and electrical work. Some jurisdictions require a roofing permit in addition to a solar permit when panels are being installed, even if no roofing work is being done.
The California Energy Commission publishes guidance on solar installation requirements and maintains resources for homeowners navigating the permitting process in California jurisdictions.
Local vs. National Installers
California has both large national installers and regional companies with deep local market knowledge. National installers offer brand recognition and potentially more financial stability, but regional installers often have stronger relationships with local permitting offices and utility interconnection teams – which matters for project timelines.
Either can be the right choice depending on your situation. What matters more than national versus local is the specific company’s track record in your utility territory and jurisdiction.
Financing Options Specific to California
California has several state-level incentive programs that supplement the federal Investment Tax Credit, including SELF (Self-Generation Incentive Program) for storage and MASH (Multifamily Affordable Solar Housing) for qualifying properties. An installer who is current on California-specific incentive programs can help you access benefits you might otherwise miss.