Sun on a roof in Harlingen.

How Harlingen comparesderived from the figures above

Where Harlingen sits.

Harlingen ranks 52nd of 157 Texas places modeled here, at the 68th percentile. Its 1,530 kWh per kW is above the Texas median of 1,518. The strongest months are July, May, August and the weakest are December, January, November; output peaks in July and bottoms out in December. In all, 29.0% of the year arrives in June, July and August, less than the 29.4% of the median place.

Closest modeled neighbors

• San Benito, 9 km southeast: 1,532 kWh per kW, 2 more than Harlingen.
• Weslaco, 29 km west: 1,540 kWh per kW, 10 more than Harlingen.
• Brownsville, 33 km southeast: 1,517 kWh per kW, 13 less than Harlingen.
• Alamo, 42 km west: 1,540 kWh per kW, 10 more than Harlingen.
• San Juan, 45 km west: 1,557 kWh per kW, 27 more than Harlingen.
• Edinburg, 47 km west: 1,575 kWh per kW, 45 more than Harlingen.
• Pharr, 49 km west: 1,547 kWh per kW, 17 more than Harlingen.
• McAllen, 55 km west: 1,575 kWh per kW, 45 more than Harlingen.
• Alton, 62 km west: 1,570 kWh per kW, 40 more than Harlingen.

Against San Antonio

The nearest of the six largest modeled places is San Antonio, 372 km to the north, at 1,505 kWh per kW. Harlingen models 25 kWh per kW (1.7%) above it. Harlingen lies 3.27 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 (2.2 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, 457 km north, where the same model gives 1,483 kWh per kW, so Harlingen runs 47 above that figure. Against the Texas median place month by month, Harlingen runs at least 2% higher in February, March, May, October, November. It runs at least 2% lower in April, September.

Electricity in Cameron CountyEIA-861

Electricity prices nearby

EIA lists AEP Texas Central in this county. Where Harlingen is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Harlingen 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 1,530 kWh at $234 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Magic Valley Electric Coop Inc: 10.51¢ per kWh, a bundled average, 129,596 residential customers across 6 counties.
• Brownsville Public Utilities Board: 11.22¢ per kWh, a bundled average, 48,500 residential customers across 1 county.
• 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 Harlingen. 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 Harlingen 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 $237 per kW a year as plain multiplication.