Solar Panel Cost in San Diego, CA (2026)
Solar panel costs in San Diego, CA typically run above the California state average. A 6 kW system in San Diego costs about $23,150 before the 30% federal ITC, with payback around 4.6 years at local utility rates.
Quick answer
In San Diego, a 6 kW solar panel system costs about $23,150 installed (4.6-year payback). After the 30% federal tax credit, net cost is roughly $16,200. Annual savings: ~$3,080/year at 28.5¢/kWh.
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Estimate for California
$9,400net after 30% ITC
~4 kW · 10 panels · $13,400 before credits · 28.5¢/kWh
Annual savings
$2,051
Payback
4.6 yrs
25-year savings
$53,874
25-year savings timeline
Includes ~3% utility rate growth & 0.5%/yr panel degradation
San Diego vs US Average
| Metric | CA | US avg |
|---|---|---|
| 6 kW system (before credit) | $23,150 | $16,271 |
| Net cost after 30% ITC | $16,200 | $11,390 |
| Cost per watt | $0.00/W | — |
| Annual electricity savings | $3,080 | $1,335 |
| Payback period (years) | 4.6 yrs | 9 yrs |
| Electricity rate | 28.5¢/kWh | — |
Updated 2026-07-07. Estimates only.
What affects solar costs in San Diego?
San Diego Gas & Electric (SDG&E) serves the metro with high TOU rates — excellent solar economics. Coastal salt air requires corrosion-resistant mounting hardware.
Strong installer competition in San Diego County keeps pricing below Northern California despite premium market.
San Diego often achieves 7–10 year payback — among the best in California for rooftop solar.
San Diego solar snapshot
- 6 kW system: $18,050 – $31,900
- After 30% ITC: $16,200
- Electric rate: 28.5¢/kWh · Peak sun: 5.8 hrs/day
- Payback: ~4.6 years · Annual savings: ~$3,080
How to maximize solar ROI in San Diego
- Size for SDG&E TOU peak hours
- Compare coastal vs. inland San Diego
- Verify HOAs — California Solar Rights Act applies
Frequently Asked Questions
How much do solar panels cost in San Diego?
A 6 kW solar system in San Diego, CA typically costs $18,050–$31,900 before incentives, or $16,200 after the 30% federal tax credit.
Is solar worth it in San Diego?
With 28.5¢/kWh electricity rates and 5.8 peak sun hours, San Diego homeowners often see 4.6-year payback. Use our calculator for your roof and usage.
How does San Diego compare to California?
San Diego install pricing is among the higher-cost metros in California.
Related pages
How We Calculate Solar Costs
MySunROI estimates combine NREL residential PV installed-price benchmarks, EIA state electricity rates, and regional labor modifiers — updated 2026-07-07.
Estimates only. Last updated 2026-07-07. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.