Solar by state › California › San Diego
Solar panels in San Diego, CA: cost and savings
In San Diego, CA, each kW of solar produces about 1,550 kWh a year. A home with a $150 monthly SDG&E bill needs roughly 3.4 kW, which costs about $10,500 before incentives and saves about $1,130 in the first year.
Updated 2026-10-20. Production uses the California average until city data is refreshed. See methodology.
Savings by electric bill in San Diego
| Monthly bill | System size | Cost before incentives | Year-1 savings | Payback (buy) |
|---|---|---|---|---|
| $100 | 2.2 kW | $7,000 | $760 | 9 yrs |
| $150 | 3.4 kW | $10,500 | $1,130 | 9 yrs |
| $250 | 5.6 kW | $17,400 | $1,890 | 9 yrs |
| $350 | 7.9 kW | $24,400 | $2,650 | 9 yrs |
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Frequently asked questions
How much do solar panels cost in San Diego?
In San Diego, CA, each kW of solar produces about 1,550 kWh a year. A home with a $150 monthly SDG&E bill needs roughly 3.4 kW, which costs about $10,500 before incentives and saves about $1,130 in the first year.
Who is the electric utility in San Diego?
Most San Diego homes are served by SDG&E. Since April 2023, new PG&E, SCE and SDG&E customers are credited for exports at avoided-cost rates well below retail, which makes a home battery much more valuable.
How many solar quotes should I get in San Diego?
Get two or three quotes, and compare price per watt, equipment, warranty and the installer's financial strength. Several large installers have gone bankrupt since 2024, so ask who will honor the workmanship warranty if the company closes.