Best Solar Companies in California 2026

Find the best solar installation companies in California. Compare top-rated installers, pricing, and reviews for CA homeowners.

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Top-Rated Solar Companies in California

#1 Sunrun (4.2/5)National — Largest residential installer with strong California presence and flexible financing.

Services: Widest financing options, Largest CA installer base, Comprehensive monitoring | Best for: Largest residential installer with strong California presence and flexible financing.

#2 SunPower (4.5/5)National — California-headquartered premium installer with the most efficient panels available.

Services: Highest efficiency panels, 40-year warranty, Local headquarters | Best for: California-headquartered premium installer with the most efficient panels available.

#3 Tesla Solar (4/5)National — Lowest pricing in the CA market with seamless Powerwall integration.

Services: Lowest prices, Powerwall battery, Strong brand | Best for: Lowest pricing in the CA market with seamless Powerwall integration.

#4 SemperSolaris (4.4/5)Local — Veteran-owned California company with excellent customer service ratings.

Services: Veteran-owned, Top customer reviews, Full-service HVAC + solar | Best for: Veteran-owned California company with excellent customer service ratings.

#5 Palmetto (4.3/5)National — Tech-forward installer with competitive CA pricing and great app experience.

Services: Best app experience, Competitive pricing, Fast installations | Best for: Tech-forward installer with competitive CA pricing and great app experience.

California Solar Market Overview

The California solar market continues to grow as homeowners served by local utility provider take advantage of federal and state incentives.

California leads the nation in solar installations with over 1.5 million residential systems. The competitive market means great prices and plenty of installer options for homeowners going solar in the Golden State.

Compare Free Solar Quotes for California

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Frequently Asked Questions

California solar costs average $2.80-$3.40/watt before the 30% federal tax credit. After incentives, a typical 7kW system costs $13,700-$16,700.
Yes, but battery storage is now more important. NEM 3.0 reduced export credits, so pairing solar with a battery maximizes savings by storing energy for evening use.
SunPower offers the best equipment, Tesla the lowest prices, and Sunrun the most financing options. Local companies like SemperSolaris often provide the best service.

SolarSavingsAI Research Team

Solar Energy Analysts

Our team analyzes solar incentive data from federal (DOE, IRS), state (DSIRE), and utility sources to provide accurate savings estimates. Data is reviewed quarterly and cross-referenced with NREL benchmarks.

Sources: DOE, IRS, DSIRE, NREL, EIA Updated: 2026 Full Methodology Editorial Standards