Solar panels in Texas: savings by city

Texas’s average residential electricity price for January to August 2026 was 16.03¢ per kWh, 2.16¢ below the US average of 18.19¢ (EIA).

Panels in the 47 cities we cover here produce an average of 1,554 kWh per kW a year, 2% more than the average of the 400 US cities in our data (1,517 kWh). San Antonio gets the most sun of the cities listed below (1,512 kWh per kW) and Houston the least (1,428 kWh). For an average US home, that is the difference between a 7.1 kW and a 7.6 kW system to cover a year’s use.

At this price, a system that covers an average US home’s use (10,788 kWh a year) saves about $1,729 in its first year anywhere in Texas. Sunnier cities need a smaller system to do it, so it costs less at any price per watt.