Best Solar Installers in California (2026)

The 5 best solar installers in California

A geographically diverse top 5 spanning Los Angeles, San Diego, the Bay Area, and the Central Coast — so homeowners across California have a local-to-them option in the top picks. California's market shifted significantly after NEM 3.0 (April 2023) and the August 2024 SunPower Corp bankruptcy — the installers below have all adapted to the post-NEM-3.0 solar-plus-battery economics and are independent of the defunct SunPower entity.

California solar economics in 2026

For full state-by-state cost comparison see solar cost by state.

California solar incentives and rebates (2026)

California stacks federal credit pathways (commercial Section 48E for businesses and third-party-owned residential), state-level credits/rebates where applicable, statutory tax exemptions, and utility-specific programs. Below is the 2026 picture with links to authoritative sources.

Federal credits (2026)

• Commercial Section 48E (Clean Electricity Investment Credit): Available to businesses, farms, and to third-party owners in lease/PPA structures (which can pass the benefit through as lower monthly payments). FEOC restrictions apply — see FEOC rules guide and FEOC compliant parts list. IRS — Clean Electricity Investment Credit.
• USDA REAP grants (agricultural / rural small business): Up to 50% of project cost, with low-interest loan guarantees on top. Quarterly application windows. "Before you build" rules — you must apply before construction starts. USDA — REAP Program.
• Federal 30C EV Charger Tax Credit: Up to 30% of eligible EV charging equipment + installation costs at qualifying locations. Expires for property placed in service after June 30, 2026. IRS — 30C Credit.

California state-level incentives

• Property tax exemption: Active solar exclusion under CA Rev & Tax Code §73 — system value excluded from property assessment for new construction (verify 2026 extension status).
• Sales tax: No statewide sales-tax exemption for solar equipment.

Net metering & utility programs in California

NEM 3.0 / Net Billing Tariff (NBT): for systems interconnected after April 14, 2023 — exports valued at avoided cost (~25–30% of retail). Pre-NEM-3.0 systems retain NEM 2.0 grandfathering for 20 years from PTO. See also net metering explained.

• PG&E: NEM 3.0 / NBT customer; SGIP for batteries. www.pge.com
• Southern California Edison (SCE): NEM 3.0 / NBT; SGIP. www.sce.com
• San Diego Gas & Electric: NEM 3.0 / NBT; SGIP. www.sdge.com
• LADWP: Retail-rate NEM in LADWP territory; rules differ from IOU NBT. www.ladwp.com
• SMUD (Sacramento): SolarShares + battery rebate; verify 2026 program year. www.smud.org

California battery storage incentives

SGIP (Self-Generation Incentive Program): Standard residential ~$200/kWh; Equity Resilience tier (low-income / wildfire-zone / medical baseline) up to $1,000+/kWh.

California EV charger and EV-purchase incentives (2026)

• Federal 30C EV Charger Tax Credit: Up to 30% of eligible equipment + installation in qualifying low-income / non-urban census tracts. Expires June 30, 2026 for property placed in service after that date.
• Many California utilities and cooperatives offer Level 2 EV charger rebates ($150–$800 typical) often tied to TOU enrollment or smart-charger requirements. Check directly with your specific utility.

Authoritative sources to verify before signing

• California Energy Commission: www.energy.ca.gov
• DSIRE (Database of State Incentives for Renewables & Efficiency): programs.dsireusa.org/system/program?state=CA — searchable national database, kept current by NC State.
• Federal IRS guidance: irs.gov — Clean Electricity Investment Credit

What to verify before signing in California

• Contractor license: Verify with your state contractor licensing authority before signing.
• NABCEP certification: Most reputable installers carry NABCEP-certified installers on staff. Ask which crew member holds the certification.
• Insurance: General liability + workers comp + roofer's insurance separate from electrical insurance.
• References from your county: Permitting and inspection requirements vary. Ask for 2–3 references from your specific county.
• Get at least three bids: Solar bids vary by 20–35% on the same scope of work. See how to compare solar bids.

Honorable mentions

Additional installers worth getting a quote from — strong California-based alternatives spanning the major metros. California is huge — Northern, Southern, and Central California each have local specialists. Each utility (PG&E, SCE, SDG&E, LADWP, SMUD) runs a separate interconnection process, so picking an installer with hands-on experience in your utility's territory matters.

Other California-based installers

Regional installers serving California

Worth a quote if you're near a state border or want a regional comparison point. Expect them to focus on specific California sub-regions rather than statewide coverage.

Tip: Under NEM 3.0 / Net Billing, exports earn far less than retail (typically 25–30% of retail rate). The right system in 2026 California is almost always solar + battery, sized for high self-consumption. Make sure every CA bid you receive models payback under NEM 3.0 export pricing, not the legacy NEM 2.0 retail-credit assumption. CA also has the SGIP battery rebate ($1,000+/kWh for low-income / wildfire-zone / medical baseline customers) that should appear in your incentive line if you qualify.

Frequently asked questions about California solar