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Solar · San Antonio, TX · 2026 cost guide
How much does solar panels cost in San Antonio, TX?
In the San Antonio-New Braunfels, TX area, a typical 8 kW system before incentives runs about $17,000 to $23,800 in 2026, about 15% below the national range. Contractor labor here is indexed at 0.85 against the U.S. average, and that is what moves the numbers; equipment and materials cost about the same everywhere.
- Cost per watt
- $2.15–$3installed, before incentives
- 8 kW system
- $17,000–$23,800before incentives, about a $150 to $200 monthly bill
- 10 kW system
- $21,300–$29,800before incentives, about a $200 to $250 monthly bill
- Battery add-on
- $8,500–$15,300one 10 to 15 kWh battery, installed
An 8 kW solar system in San Antonio runs $17,000 to $23,800 before incentives. The sun is generous, about 5.1 peak sun hours a day, but the economics hinge on CPS Energy, the city's municipal utility. It credits exported power at a set rate rather than full retail, and its residential rate of about $0.135 per kWh is below the Texas average, so payback runs longer than the sunshine alone would suggest. Texas has no statewide net metering and no state income tax credit.
What's different in San Antonio
San Antonio's 5.1 peak sun hours beat Dallas and Houston, and the 3,200 cooling degree days mean the biggest production days line up with the biggest air conditioning days. The catch is the price of the power you are replacing. CPS Energy's rate of about $0.135 per kWh is below the Texas average, and every kilowatt-hour you offset saves only that much, so the same system that pays back quickly under a California utility stretches toward the long end here. Sizing the array to cover daytime use, not the whole annual bill, usually gives the best return.
Because Texas has no statewide net metering, what you get for exports depends entirely on CPS Energy. It credits exported energy at a set rate rather than retail, and it has offered residential solar rebates in past years; both change over time, so confirm current figures with CPS Energy before you sign and have the installer model them rather than assuming retail credit. A battery lets you use afternoon production in the evening instead of exporting it at the lower rate, which helps the math, and it covers outages during a hard freeze. Texas exempts the added value of a solar system from property tax.
Permits go through City of San Antonio Development Services, and CPS Energy handles the interconnection agreement and the meter; ask the installer for a realistic timeline, since both steps run in series. Roof-wise, many north-side homes have composition shingle over simple gables, which keeps mounting costs down, and there is no snow load to design for. Summer heat does trim panel output a little on 100-degree afternoons, so a good production estimate accounts for it. New Braunfels and the outer suburbs are served by other utilities and co-ops with their own export rules, so check whose name is on your bill before you compare bids.
Solar Panel prices in San Antonio vs. the national guide
These are the ranges from our national solar panels cost guide next to the same items scaled by the San Antonio, TX labor index of 0.85. Rows marked fixed are materials only and do not move with local labor.
| Item | National range | San Antonio, TX |
|---|---|---|
| Cost per watt | $2.50–$3.50 | $2.15–$3 |
| 8 kW system | $20,000–$28,000 | $17,000–$23,800 |
| 10 kW system | $25,000–$35,000 | $21,300–$29,800 |
| Battery add-on | $10,000–$18,000 | $8,500–$15,300 |
Local tip: Pull a year of CPS Energy bills and size the array to your daytime summer load, since exports are credited at a set rate below the about $0.135 per kWh you pay.
San Antonio at a glance
- Climate zone
- 2Ahot-humid / semi-arid
- Labor index
- 0.85vs. U.S. average 1.00
- Electricity
- $0.135/kWhCPS Energy
- Peak sun hours
- 5.1kWh/m²/day, annual average
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Does CPS Energy offer net metering in San Antonio?
Not full retail net metering; Texas has no statewide requirement. CPS Energy credits the energy you export at a set rate that it sets and adjusts, and that rate is below what you pay for power at about $0.135 per kWh. That is why installers here talk about self-consumption and batteries. Ask CPS Energy for the current export credit and have the installer model it, not a retail credit.
How long does solar take to pay back in San Antonio?
Longer than the sunshine suggests. About 5.1 peak sun hours a day is excellent, but CPS Energy's below-average retail rate and its set export credit shrink each kilowatt-hour's value. A right-sized system that mostly offsets daytime air conditioning use, plus any open CPS Energy rebate, gets you toward the middle of the national range; an oversized system that exports heavily lands at the long end.
Is there a solar rebate from CPS Energy right now?
CPS Energy has offered residential solar rebates in past program years, and they have opened and closed as funding was used. Check the current status on CPS Energy's site or with the installer before you count on one. Beyond that, Texas exempts the system's added value from property tax, but there is no state income tax credit and no federal credit for 2026 installs.
Do I need a battery with solar in San Antonio?
Not required, but it helps here more than in a full net metering city. Because CPS Energy credits exports at a set rate below retail, storing afternoon production for the evening peak raises the value of each kilowatt-hour. It also keeps the house running through outages, which matter most during the occasional hard freeze. If backup does not matter to you, compare the battery's cost against the export credit gap.
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