Solar Panel Cost in San Diego, California
Local pricing, savings, and net metering data for San Diego homeowners.
Solar in San Diego: What Homeowners Should Know
San Diego sees an average of 5.9 peak sun hours per day, which is what ultimately determines how much electricity a rooftop system produces here. A standard 8 kW system (about 20 panels) generates roughly 13,782 kWh each year in San Diego — and paired with California's local electricity rate of $0.190/kWh, that's where the savings come from.
At those numbers, a San Diego homeowner saves about $218/month ($2,619/year). Against a $25,600 system cost (about $23,600 after California state incentives), that works out to a payback of about 9 years, after which the system produces essentially free power for two decades — an estimated $65,847 in lifetime savings. Note: the 30% federal tax credit expired at the end of 2025 for purchased systems, though a solar lease or PPA can still pass it through. The local grid is served by San Diego Gas & Electric, whose net metering policy directly affects how much credit you earn for surplus power.
Cost & Savings Breakdown
Based on a standard 8 kW system in San Diego
25-Year Savings Projection
Utility & Net Metering
Available Incentives
Choosing a Solar Installer in San Diego
- 1.Get at least 3 quotes. Prices in California vary widely between installers — comparing bids on the same 8 kW system is the fastest way to avoid overpaying.
- 2.Confirm San Diego Gas & Electric interconnection experience. An installer who regularly files with your local utility will move your permit and net-metering paperwork through faster.
- 3.Check licensing & the warranty. Look for NABCEP-certified installers and a workmanship warranty of 10+ years on top of the standard 25-year panel warranty.
- 4.Size for your actual usage. With 5.9 sun hours/day in San Diego, make sure the proposed system matches your kWh history — not just your roof space.
Common Questions
How much does solar cost in San Diego?
Solar in San Diego, California costs approximately $25,600 for a 8 kW system, or about $23,600 after state incentives. The 30% federal tax credit expired December 31, 2025 for purchased systems, though solar leases and PPAs can still pass it through.
What is the solar payback period in San Diego?
The estimated payback period for solar in San Diego is 9 years for a standard 8 kW system, based on local sun hours of 5.9 hrs/day and a rate of $0.190/kWh.
Is solar worth it in San Diego?
For most San Diego homeowners, yes. With 5.9 peak sun hours per day and an electricity rate of $0.190/kWh, a typical system saves $2,619 per year and around $65,847 over 25 years after paying for itself in 9 years.
How many solar panels do I need in San Diego?
A standard 8 kW home solar system is about 20 panels, producing roughly 13,782 kWh per year in San Diego at 5.9 sun hours/day. Your exact size depends on your household's electricity use.
Does San Diego Gas & Electric offer net metering?
San Diego Gas & Electric offers Modified Net Metering net metering. Avoided cost rate.