San Diego · CA
Solar Companies in
San Diego, CA
San Diego homeowners pay $18,500–$27,500 for a typical 8 kW solar system in 2026. The federal 30% residential tax credit expired December 31, 2025; California's property tax and sales tax exemptions remain active. At San Diego Gas & Electric (SDG&E)'s rate of $0.218/kWh, most systems pay back in 10–14 years.
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5.6 hrs/day
Peak Sun Hours
$1,820/yr
Avg. Annual Savings
10–14 yrs
Payback Period
$18,500–$27,500
Avg. System Cost
2026 update: The 30% federal residential solar tax credit (Section 25D) expired December 31, 2025. Homeowners purchasing systems in 2026 cannot claim it. Solar leases and PPAs are the exception — the installer can still claim commercial credits and pass savings through in the monthly rate. Full 2026 ITC guide →
About Solar in San Diego
Why San Diego Homeowners Are Going Solar in 2026
SDG&E has the highest residential electricity rates in the continental US — averaging $0.218/kWh with peak rates exceeding $0.50/kWh. This makes San Diego one of the strongest solar markets in the country despite NEM 3.0. The key is pairing solar with battery storage to consume your own generation during peak rate hours rather than exporting at the low avoided-cost rate.
Key solar facts for San Diego
- 5.6 peak sun hours per day
- San Diego Gas & Electric (SDG&E) average rate: $0.218/kWh
- Average monthly bill: $195
- Popular system size: 8 kW
- Permit timeline: San Diego City permits typically take 2–5 weeks. SDG&E interconnection adds 4–8 weeks. San Diego has an online solar permitting portal but processing times vary by inspector workload.
Active Incentives
San Diego Solar Incentives in 2026
California NEM 3.0 (SDG&E)
Net MeteringSDG&E customers are subject to California's NEM 3.0 rules, which credit excess solar generation at the avoided cost rate (roughly $0.05–0.08/kWh) rather than the retail rate. Battery storage significantly improves NEM 3.0 economics by allowing homeowners to shift self-consumption to peak rate hours.
Value: Avoided cost rate (~$0.05–0.08/kWh) — NOT retail rate
California Solar Property Tax Exclusion
Property TaxCalifornia excludes the added value of solar installations from property tax assessments.
Value: 100% exclusion on added value
SELF (Solar Energy Loan Fund) — Income-Qualified
RebateIncome-qualified San Diego homeowners may access low-interest solar loans through SELF and other community programs. Eligibility requirements apply.
Value: Low-interest financing for income-qualified households
Net Metering in San Diego
SDG&E customers are subject to NEM 3.0 — excess solar generation is credited at the avoided cost rate (~$0.05–0.08/kWh), not the retail rate. Battery storage is strongly recommended under NEM 3.0 to maximize self-consumption during peak rate hours ($0.45–0.55/kWh evenings) rather than exporting at low rates.
Solar Leases & PPAs in San Diego
Solar leases and PPAs are widely available in San Diego. Under NEM 3.0, battery storage is increasingly bundled with solar in TPO offers — the installer benefits from optimizing self-consumption to reduce export at low avoided-cost rates.
How much does solar cost in San Diego?
Detailed cost breakdown, financing options, and payback analysis for San Diego homeowners.
Want national solar cost data? How Much Do Solar Panels Cost in 2026? →
Common Questions
San Diego Solar FAQ
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San Diego Solar at a Glance
Solar Installers Serving San Diego and Surrounding Areas
Our network of pre-vetted solar installers serves San Diego and these nearby communities:
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