Solar Cost Breakdown for San Diego
Here's what a typical 5.8 kW solar installation costs in San Diego, CA in 2026, based on current market pricing and live utility data from SDG&E.
| Cost Item | Amount | Notes |
|---|---|---|
| Gross System Cost (5.8 kW) | $18,600 | Before any incentives |
| Federal ITC (30%) | -$5,580 | Applied to tax return (Form 5695) |
| Net Cost to Homeowner | $13,020 | After federal tax credit |
| Monthly Loan Payment (25yr @ 5.99%) | ~$83/mo | $0 down solar loan |
| Monthly Bill Savings | ~$236/mo | Based on SDG&E 29.8¢/kWh |
Solar Production in San Diego
San Diego averages 5.7 peak sun hours per day — excellent for solar energy production. A 5.8 kW system here will generate approximately:
| Timeframe | Estimated Production | Value @ 29.8¢/kWh |
|---|---|---|
| Daily (avg) | 26.4 kWh | $7.88 |
| Monthly (avg) | 793 kWh | $236 |
| Annual | 9,654 kWh | $2,877 |
| 25-Year Total | 241,338 kWh | $71,000 |
CA Solar Incentives
Homeowners in San Diego, CA can stack multiple incentives to reduce the net cost of solar significantly:
| Incentive | Value | How to Claim |
|---|---|---|
| Federal Investment Tax Credit (ITC) | 30% of system cost = $5,580 | IRS Form 5695 at tax time |
| CA Solar Initiative | Varies | Through installer or CA tax return |
| Property Tax Exemption | Solar value excluded from property tax | Automatic in most CA counties |
| Net Metering (SDG&E) | Credit for excess solar exported to grid | Applied automatically to monthly bill |
💡 Total potential savings: Between the 30% federal ITC ($5,580) and state incentives in CA, many San Diego homeowners reduce their net system cost by 35–45% before financing.
SDG&E: Your Local Rate
Your San Diego utility provider is SDG&E, currently charging 29.8¢ per kWh (source: EIA, June 2026). This rate determines how valuable solar is for your home — higher rates mean faster payback.
US electricity rates have increased an average of 3.4% per year since 2010. If SDG&E's rate continues rising, your solar savings will grow each year — meaning real payback is often faster than static estimates suggest.
| Year | Projected Rate | Annual Solar Savings (5.8 kW) |
|---|---|---|
| 2026 (now) | 29.8¢/kWh | $2,877 |
| 2031 (+5yr) | 35.2¢/kWh | $3,400 |
| 2036 (+10yr) | 41.6¢/kWh | $4,019 |
| 2046 (+20yr) | 58.2¢/kWh | $5,615 |
Get Your Exact San Diego Solar Quote
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Calculate My San Diego Solar Cost →Compare Nearby Cities
See how solar costs compare in cities near San Diego: