Solar Panel Cost in San Antonio, TX (2026)
The average solar panel installation in San Antonio, TX costs $2.60 per watt, or about $15,600 for a typical 6kW residential system before state and local incentives. Over 25 years, going solar in San Antonio can save you an estimated $38,000, with a payback period of around 6 years.
$2.60
Cost per Watt
$15,600
Avg System Cost
6 years
Payback Period
$38,000
25-Year Savings
Solar Panel Costs in San Antonio, TX
Average cost per watt: $2.60 | Payback period: 6 years
| System Size | Estimated Cost | Est. 25-Year Savings |
|---|---|---|
| 4 kW | $10,400 | $25,333 |
| 6 kW | $15,600 | $38,000 |
| 8 kW | $20,800 | $50,667 |
| 10 kW | $26,000 | $63,333 |
| 12 kW | $31,200 | $76,000 |
Why Go Solar in San Antonio?
San Antonio residents currently pay an average of $13.0 cents/kWh for electricity. While this is below the national average of 16 cents/kWh, San Antonio homeowners still benefit from solar thanks to state incentives, net metering, and rising electricity costs.
With an average of 5.5 peak sun hours per day, San Antonio receives excellent solar irradiance, supporting strong energy production from your rooftop panels throughout the year.
Texas does not have a statewide net metering mandate, but many utility providers serving San Antonio offer buyback programs or credits for excess solar generation. Check with your local utility for available options.
Solar Cost FAQs for San Antonio, TX
Ready to Go Solar?
Get a free, no-obligation quote from top-rated installers in your area.
Get Your Free Quote