Sun on a roof in Rio Bravo.

How Rio Bravo comparesderived from the figures above

Where Rio Bravo sits.

Rio Bravo ranks 239th of 1220 Texas places modeled here, at the 80th percentile. Its 1,591 kWh per kW is above the Texas median of 1,515. The strongest months are August, July, June and the weakest are December, February, January; output peaks in August and bottoms out in December. In all, 28.7% of the year arrives in June, July and August, less than the 29.3% of the median place.

Closest modeled neighbors

• El Cenizo, 4 km southwest: 1,582 kWh per kW, 9 less than Rio Bravo.
• Laredo, 22 km north: 1,601 kWh per kW, 10 more than Rio Bravo.
• Encinal, 77 km north: 1,554 kWh per kW, 37 less than Rio Bravo.
• Freer, 103 km northeast: 1,540 kWh per kW, 51 less than Rio Bravo.
• Benavides, 109 km east: 1,548 kWh per kW, 43 less than Rio Bravo.
• Roma, 116 km southeast: 1,612 kWh per kW, 21 more than Rio Bravo.
• Escobares, 118 km southeast: 1,627 kWh per kW, 36 more than Rio Bravo.
• Cotulla, 122 km north: 1,564 kWh per kW, 27 less than Rio Bravo.
• Asherton, 124 km north: 1,563 kWh per kW, 28 less than Rio Bravo.

Against San Antonio

The nearest of the six largest modeled places is San Antonio, 252 km to the north, at 1,505 kWh per kW. Rio Bravo models 86 kWh per kW (5.7%) above it. Rio Bravo lies 2.1 degrees of latitude south of San Antonio, and the sun stands higher in the sky the further south you go, which matches its higher modeled output. The two weather stations sit a similar distance from their points (2.3 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, 368 km northeast, where the same model gives 1,483 kWh per kW, so Rio Bravo runs 108 above that figure. Against the Texas median place month by month, Rio Bravo runs at least 2% higher in January, February, March, April, August, October, November, December.

Electricity in Webb CountyEIA-861

Electricity prices nearby

EIA lists AEP Texas Central in this county. Where Rio Bravo is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Rio Bravo 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 1,591 kWh at $244 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Medina Electric Coop, Inc: 12.54¢ per kWh, a bundled average, 30,778 residential customers across 17 counties.
• Rio Grande Electric Coop, Inc: 18.29¢ per kWh, a bundled average, 9,371 residential customers across 18 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 Rio Bravo. 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 Rio Bravo 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 15.4¢ per kWh. At that rate the modeled output is worth $245 per kW a year as plain multiplication.