Solar Panel Cost in San Antonio, TX (2026)
Solar panel costs in San Antonio, TX typically run below the Texas state average. A 6 kW system in San Antonio costs about $15,200 before the 30% federal ITC, with payback around 8.3 years at local utility rates.
Quick answer
In San Antonio, a 6 kW solar panel system costs about $15,200 installed (8.3-year payback). After the 30% federal tax credit, net cost is roughly $10,650. Annual savings: ~$1,310/year at 12.8¢/kWh.
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Estimate for Texas
$7,200net after 30% ITC
~4 kW · 10 panels · $10,300 before credits · 12.8¢/kWh
Annual savings
$874
Payback
8.2 yrs
25-year savings
$22,944
25-year savings timeline
Includes ~3% utility rate growth & 0.5%/yr panel degradation
San Antonio vs US Average
| Metric | TX | US avg |
|---|---|---|
| 6 kW system (before credit) | $15,200 | $16,271 |
| Net cost after 30% ITC | $10,650 | $11,390 |
| Cost per watt | $0.00/W | — |
| Annual electricity savings | $1,310 | $1,335 |
| Payback period (years) | 8.3 yrs | 9 yrs |
| Electricity rate | 12.8¢/kWh | — |
Updated 2026-07-07. Estimates only.
What affects solar costs in San Antonio?
CPS Energy serves most of San Antonio with established solar rebate history — verify current program status at dsireusa.org. Strong sun and below-average install costs vs. coastal markets.
Alamo City metro has growing installer base serving Bexar County and northern suburbs.
San Antonio often beats Texas average on payback due to competitive pricing and high production.
San Antonio solar snapshot
- 6 kW system: $11,850 – $20,900
- After 30% ITC: $10,650
- Electric rate: 12.8¢/kWh · Peak sun: 5.5 hrs/day
- Payback: ~8.3 years · Annual savings: ~$1,310
How to maximize solar ROI in San Antonio
- Check CPS Energy solar programs
- Compare San Antonio vs. Austin quotes if flexible
- Size for summer AC load
Frequently Asked Questions
How much do solar panels cost in San Antonio?
A 6 kW solar system in San Antonio, TX typically costs $11,850–$20,900 before incentives, or $10,650 after the 30% federal tax credit.
Is solar worth it in San Antonio?
With 12.8¢/kWh electricity rates and 5.5 peak sun hours, San Antonio homeowners often see 8.3-year payback. Use our calculator for your roof and usage.
How does San Antonio compare to Texas?
San Antonio install pricing is among the more affordable metros in Texas.
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.