Solar savings & payback in San Antonio
CPS Energy has periodically offered rebates, worth checking before you buy.
This calculator uses San Antonio's own sun (~4.6 kWh/kW/day, 2% above the TX average) with Texas's rate and export rules. For a typical $150/month bill we estimate a payback of about 13.5 years.
- San Antonio sun
- ~4.6 kWh/kW/day
- TX average sun
- ~4.5 kWh/kW/day
- Electricity rate
- 15¢/kWh
- Net metering
- Net billing (reduced export rate)
Statewide policy, incentives, and the full cost-by-size table live on the Texas page
Where your money goes
Your 25-year money curve
What the planet gets
Net metering credits exported power against what you draw from the grid. Rates vary by state, California's NEM 3.0 pays much less for exports than 1:1 states.
Enter a valid monthly bill and tariff greater than zero to see your results.
San Antonio solar FAQs
Is solar worth it in San Antonio?
For a typical $150/month bill, we estimate a San Antonio system pays for itself in about 13.5 years, using local sun (~4.6 kWh per kW per day), Texas's average 15¢/kWh rate, and net billing (reduced export rate). No federal tax credit is assumed (it expired at the end of 2025). CPS Energy has periodically offered rebates, worth checking before you buy.
How much do solar panels generate in San Antonio?
Roughly 4.6 kWh per installed kW per day averaged over the year, about 1,679 kWh per kW annually. A typical 6kW system produces around 10100 kWh a year here. Roof orientation and shading move these figures.
What rebates are available in San Antonio?
Choosing a good solar buyback plan matters more than the base rate. Utility-level programs come and go, check your utility's website and dsireusa.org for anything city-specific before signing.