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Bexar County

Solar Panel Cost in San Antonio, Texas (2026)

Updated March 2026

$25,800
Average system cost
$39,600
25-year savings
11.4 yrs
Payback period
$2.58/W
10 kW avg system
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How much do solar panels cost in San Antonio?

A 10 kW system in San Antonio averages $25,800 installed. At $2.58/W, that puts your payback at 11.4 years with $39,600 in lifetime savings.

Good
$21,930
Average
$25,800
High
$29,670
SizeCost$/WattAnnual savingsPayback
5 kW$12,900$2.58/W$792/yr11.4 yrs
6 kW$15,480$2.58/W$950/yr11.4 yrs
8 kW$20,640$2.58/W$1,267/yr11.4 yrs
10 kW$25,800$2.58/W$1,584/yr11.4 yrs
12 kW$30,960$2.58/W$1,900/yr11.4 yrs
14 kW$36,120$2.58/W$2,218/yr11.4 yrs

* Payback includes 30% federal tax credit.

How much can you save with solar in San Antonio?

11.4
Year payback
119%
25-yr ROI
$1,584
Per year
$39,600
Lifetime
Average monthly bill$155
Monthly savings with solar$132
Annual savings$1,584
25-year net savings$39,600

After payback in year 11.4, you pocket $1,584 every year for the remaining 13.6 years of the panel warranty. Solar also adds ~4% to home value. On a $300,000 home, that's $12,000 in equity.

What do San Antonio homeowners ask about solar?

Is solar worth it in San Antonio?
Yes. CPS Energy offers strong buyback rates and San Antonio gets 240 peak sun hours per year. 11.4-year payback with 119% ROI over 25 years.
How much does solar cost in San Antonio?
Average 10 kW system costs $25,800 installed ($18,060 after the 30% federal tax credit). At $2.58/W, payback takes about 11.4 years.

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