Solar · CA · 2026
Average Solar Panel Cost in San Diego, CA — 2026
The average cost to install solar panels in San Diego is $32,500 gross ($22,750 after the 30% federal ITC) in 2026. Payback period: ~5.2 years. Get free installer quotes.
Average System Cost
A typical 10 kW residential solar system in San Diego, CA costs $32,500 gross ($22,750 after the 30% federal ITC) in 2026. Annual electricity savings are approximately $4,400, giving an estimated payback period of ~5.2 years on a cash purchase. Use the solar payback calculator for a full breakdown including state incentives.
Average Solar Panel Cost in San Diego, CA (2026) — Data Breakdown
| Item | Amount |
|---|---|
| Gross system cost (10 kW) | $32,500 |
| Federal ITC (30%) | -$9,750 |
| Net cost after ITC | $22,750 |
| Annual electricity savings | $4,400/yr |
| Estimated payback | ~5.2 years |
| Cost per watt | ~$3.25/W installed |
Methodology: Based on SEIA 2026 average installed cost data for CA, EIA state electricity rate, and NREL PVWatts production model. Actual costs vary by installer, roof type, and system configuration.