Sun on a roof in Del Rio.

How Del Rio comparesderived from the figures above

Where Del Rio sits.

Del Rio ranks 12th of 157 Texas places modeled here, at the 93rd percentile. Its 1,599 kWh per kW is above the Texas median of 1,518. The strongest months are July, August, March and the weakest are December, February, November; output peaks in July and bottoms out in December. In all, 28.0% of the year arrives in June, July and August, less than the 29.4% of the median place.

Closest modeled neighbors

• Eagle Pass, 83 km southeast: 1,576 kWh per kW, 23 less than Del Rio.
• Kerrville, 185 km northeast: 1,552 kWh per kW, 47 less than Del Rio.
• Boerne, 213 km east: 1,529 kWh per kW, 70 less than Del Rio.
• San Antonio, 229 km east: 1,505 kWh per kW, 94 less than Del Rio.
• San Angelo, 234 km north: 1,652 kWh per kW, 53 more than Del Rio.
• Laredo, 243 km southeast: 1,601 kWh per kW, 2 more than Del Rio.
• Universal City, 250 km east: 1,516 kWh per kW, 83 less than Del Rio.
• Converse, 250 km east: 1,511 kWh per kW, 88 less than Del Rio.
• Schertz, 255 km east: 1,502 kWh per kW, 97 less than Del Rio.

Against San Antonio

The nearest of the six largest modeled places is San Antonio, 229 km to the east, at 1,505 kWh per kW. Del Rio models 94 kWh per kW (6.2%) above it. At 0.09 degrees of latitude apart, the two sit at almost the same sun angle, so geometry explains little. The two weather stations sit a similar distance from their points (1.9 km and 2.2 km), so station distance does little to explain the gap, and the weather record does the rest.

The second-nearest large place is Austin, 319 km east, where the same model gives 1,483 kWh per kW, so Del Rio runs 116 above that figure. Against the Texas median place month by month, Del Rio runs at least 2% higher in January, February, March, April, May, September, November, December. It runs at least 2% lower in June.

Electricity in Val Verde CountyEIA-861

Electricity prices nearby

EIA lists AEP Texas Central in this county. Where Del Rio is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Del Rio may instead be served by a co-op or utility listed below, which sets its own rates; check your bill. For scale only, the median 2025 average price across the 60 Texas retail providers on this site is 15.32¢ per kWh, which would put the modeled 1,599 kWh at $245 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Rio Grande Electric Coop, Inc: 18.29¢ per kWh, a bundled average, 9,371 residential customers across 18 counties.
• Southwest Texas Elec Coop, Inc: 14.65¢ per kWh, a bundled average, 5,934 residential customers across 12 counties.
• AEP Texas Central Company: 5.91¢ per kWh, delivery charges only, before the retail energy price, 793,896 residential customers across 44 counties.

These utilities serve other parts of the county, which can include parts of Del Rio. They are the largest bundled providers, and the largest delivery-only one, whose EIA service territory lists the county. A county can list several, and which one serves a street depends on the address, so check your bill.

Modeled estimateruns in your browser

Size the array, see the kWh.

Scale the Del Rio model to another array size, take off extra losses for shade or dirt, and price the energy at any rate. It is arithmetic on the PVWatts output above, nothing more: not a quote, not a savings estimate and not advice.

Starting rate: the Texas residential average of 15.47¢ per kWh. At that rate the modeled output is worth $247 per kW a year as plain multiplication.