Sun on a roof in Martindale.

How Martindale comparesderived from the figures above

Where Martindale sits.

Martindale ranks 582nd of 1220 Texas places modeled here, at the 52nd percentile. Its 1,517 kWh per kW is above the Texas median of 1,515. The strongest months are August, July, June and the weakest are January, December, February; output peaks in August and bottoms out in January. In all, 29.3% of the year arrives in June, July and August, about the same than the 29.3% of the median place.

Closest modeled neighbors

• Staples, 9 km south: 1,508 kWh per kW, 9 less than Martindale.
• San Marcos, 10 km west: 1,507 kWh per kW, 10 less than Martindale.
• Uhland, 15 km north: 1,505 kWh per kW, 12 less than Martindale.
• Lockhart, 16 km east: 1,490 kWh per kW, 27 less than Martindale.
• Kyle, 17 km north: 1,493 kWh per kW, 24 less than Martindale.
• Niederwald, 18 km north: 1,508 kWh per kW, 9 less than Martindale.
• Kingsbury, 21 km south: 1,491 kWh per kW, 26 less than Martindale.
• Mountain City, 23 km north: 1,493 kWh per kW, 24 less than Martindale.
• Luling, 26 km southeast: 1,492 kWh per kW, 25 less than Martindale.

Against Austin

The nearest of the six largest modeled places is Austin, 52 km to the north, at 1,483 kWh per kW. Martindale models 34 kWh per kW (2.3%) above it. Martindale lies 0.46 degrees of latitude south of Austin, 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 (2.2 km and 1.5 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, 78 km southwest, where the same model gives 1,505 kWh per kW, so Martindale runs 12 above that figure. Against the Texas median place month by month, Martindale runs at least 2% higher in February, October, November. It runs at least 2% lower in January, June.

Electricity in Caldwell CountyEIA-861

Electricity prices nearby

EIA lists AEP Texas Central in this county. Where Martindale is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Martindale 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 1,517 kWh at $232 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Pedernales Electric Coop, Inc: 12.75¢ per kWh, a bundled average, 420,753 residential customers across 24 counties.
• Bluebonnet Electric Coop, Inc: 11.59¢ per kWh, a bundled average, 119,030 residential customers across 14 counties.
• Guadalupe Valley Elec Coop Inc: 11.83¢ per kWh, a bundled average, 95,358 residential customers across 13 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 Martindale. 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 Martindale 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 $234 per kW a year as plain multiplication.