Sun on a roof in Port Lavaca.

How Port Lavaca comparesderived from the figures above

Where Port Lavaca sits.

Port Lavaca ranks 892nd of 1220 Texas places modeled here, at the 27th percentile. Its 1,480 kWh per kW is below the Texas median of 1,515. The strongest months are August, July, May and the weakest are December, January, February; output peaks in August and bottoms out in December. In all, 29.4% of the year arrives in June, July and August, more than the 29.3% of the median place.

Closest modeled neighbors

• Point Comfort, 9 km northeast: 1,547 kWh per kW, 67 more than Port Lavaca.
• Seadrift, 25 km south: 1,527 kWh per kW, 47 more than Port Lavaca.
• La Ward, 30 km northeast: 1,499 kWh per kW, 19 more than Port Lavaca.
• Austwell, 33 km southwest: 1,484 kWh per kW, 4 more than Port Lavaca.
• Edna, 40 km north: 1,482 kWh per kW, 2 more than Port Lavaca.
• Palacios, 40 km east: 1,537 kWh per kW, 57 more than Port Lavaca.
• Victoria, 42 km northwest: 1,478 kWh per kW, 2 less than Port Lavaca.
• Ganado, 48 km north: 1,464 kWh per kW, 16 less than Port Lavaca.
• Refugio, 71 km southwest: 1,492 kWh per kW, 12 more than Port Lavaca.

Against Houston

The nearest of the six largest modeled places is Houston, 177 km to the northeast, at 1,422 kWh per kW. Port Lavaca models 58 kWh per kW (4.1%) above it. Port Lavaca lies 1.17 degrees of latitude south of Houston, 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 (1.5 km and 2.4 km), so station distance does little to explain the gap, and the weather record does the rest.

The second-nearest large place is San Antonio, 206 km northwest, where the same model gives 1,505 kWh per kW, so Port Lavaca runs 25 below that figure. Against the Texas median place month by month, Port Lavaca runs at least 2% higher in October. It runs at least 2% lower in March, April, June, July, September, December.

Electricity in Calhoun CountyEIA-861

Electricity prices nearby

EIA lists AEP Texas Central in this county. Where Port Lavaca is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Port Lavaca 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 1,480 kWh at $227 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Victoria Electric Coop, Inc: 12.4¢ per kWh, a bundled average, 21,716 residential customers across 6 counties.
• Jackson Electric Coop, Inc: 14.55¢ per kWh, a bundled average, 15,670 residential customers across 6 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 Port Lavaca. 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 Port Lavaca 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 $228 per kW a year as plain multiplication.