Sun on a roof in Portland.

How Portland comparesderived from the figures above

Where Portland sits.

Portland ranks 29th of 157 Texas places modeled here, at the 82nd percentile. Its 1,553 kWh per kW is above the Texas median of 1,518. 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, 29.2% of the year arrives in June, July and August, less than the 29.4% of the median place.

Closest modeled neighbors

• Corpus Christi, 22 km southeast: 1,529 kWh per kW, 24 less than Portland.
• Kingsville, 67 km southwest: 1,532 kWh per kW, 21 less than Portland.
• Victoria, 110 km north: 1,478 kWh per kW, 75 less than Portland.
• Edinburg, 193 km southwest: 1,575 kWh per kW, 22 more than Portland.
• Harlingen, 193 km south: 1,530 kWh per kW, 23 less than Portland.
• San Benito, 198 km south: 1,532 kWh per kW, 21 less than Portland.
• Seguin, 199 km north: 1,498 kWh per kW, 55 less than Portland.
• Alton, 203 km southwest: 1,570 kWh per kW, 17 more than Portland.
• Weslaco, 203 km south: 1,540 kWh per kW, 13 less than Portland.

Against San Antonio

The nearest of the six largest modeled places is San Antonio, 210 km to the northwest, at 1,505 kWh per kW. Portland models 48 kWh per kW (3.2%) above it. Portland lies 1.57 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 weather station for Portland is 1.0 km from the modeled point, against 2.2 km for San Antonio, so part of the gap can come from which station's typical year was used.

The second-nearest large place is Austin, 271 km north, where the same model gives 1,483 kWh per kW, so Portland runs 70 above that figure. Against the Texas median place month by month, Portland runs at least 2% higher in February, March, May, August, October, November, December. It runs at least 2% lower in January.

Electricity in Nueces County, San Patricio CountyEIA-861

Electricity prices nearby

EIA lists AEP Texas Central in this county. Where Portland is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Portland 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 1,553 kWh at $238 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Nueces Electric Cooperative: 9.5¢ per kWh, a bundled average, 31,397 residential customers across 8 counties.
• Nueces Electric Cooperative: 14.46¢ per kWh, a bundled average, 18,506 residential customers across 8 counties.
• San Patricio Electric Coop Inc: 14.16¢ per kWh, a bundled average, 10,087 residential customers across 9 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 Portland. 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 Portland 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 $240 per kW a year as plain multiplication.