Robstown, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Robstown.
The PVWatts model puts a generic roof array in Robstown at 1,551 kWh a year for each kW of panels, using typical-year weather from a station 2.4 km away. A modeled estimate for a standard setup, not a measurement of any roof.
A year on one roof.
Scroll from January to December: the noon sun over Robstown climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 154, weakest 95: a ratio of 1.62.
How Robstown comparesderived from the figures above
Where Robstown sits.
Robstown ranks 348th of 1220 Texas places modeled here, at the 72nd percentile. Its 1,551 kWh per kW is above the Texas median of 1,515. The strongest months are July, August, June and the weakest are February, December, November; output peaks in July and bottoms out in February. In all, 29.1% of the year arrives in June, July and August, less than the 29.3% of the median place.
Closest modeled neighbors
- Petronila, 14 km south: 1,562 kWh per kW, 11 more than Robstown.
- Driscoll, 15 km southwest: 1,549 kWh per kW, 2 less than Robstown.
- Odem, 19 km northeast: 1,511 kWh per kW, 40 less than Robstown.
- San Patricio, 23 km northwest: 1,497 kWh per kW, 54 less than Robstown.
- Agua Dulce, 24 km west: 1,522 kWh per kW, 29 less than Robstown.
- Bishop, 26 km southwest: 1,556 kWh per kW, 5 more than Robstown.
- Sinton, 32 km northeast: 1,517 kWh per kW, 34 less than Robstown.
- Orange Grove, 33 km northwest: 1,496 kWh per kW, 55 less than Robstown.
- Taft, 35 km northeast: 1,531 kWh per kW, 20 less than Robstown.
Against San Antonio
The nearest of the six largest modeled places is San Antonio, 203 km to the northwest, at 1,505 kWh per kW. Robstown models 46 kWh per kW (3.1%) above it. Robstown lies 1.67 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 (2.4 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, 279 km north, where the same model gives 1,483 kWh per kW, so Robstown runs 68 above that figure. Against the Texas median place month by month, Robstown runs at least 2% higher in January, March, April, May, October, December. It runs at least 2% lower in February, September.
Electricity in Nueces CountyEIA-861
Electricity prices nearby
EIA lists AEP Texas Central in this county. Where Robstown is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Robstown 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 1,551 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 Robstown. 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 Robstown 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 $239 per kW a year as plain multiplication.
PVWatts v8station 680262
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 110.0 |
| February | 94.7 |
| March | 129.9 |
| April | 142.0 |
| May | 147.1 |
| June | 147.8 |
| July | 153.5 |
| August | 150.7 |
| September | 129.1 |
| October | 134.4 |
| November | 107.7 |
| December | 103.9 |
| Year | 1,551 |
Model assumptions
- System size
- 1 kWDC, results scale per kW
- Mount
- fixed roof mount
- Tilt
- 20°
- Azimuth
- 180°due south
- Modules
- standard
- System losses
- 14%
Location 27.79, -97.67 (Robstown, population 10,383). Weather: typical-year data from station 680262, 2.4 km from that point.
Getting a measured number
A model cannot see your roof. Installers measure pitch, shade and the electrical panel on site. Quote marketplaces such as EnergySage, SolarReviews and WattBuy collect bids from local installers. Rate & Roof does not rank installers.
Next step
Payback, buyback.
The sliders above price the energy at one rate. The payback calculator adds the system cost and your buyback plan type, and shows every assumption. It is an estimate, not advice.
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Rates change. Get told.
One list, for Texas solar buyback plans. We write when a tracked rate changes and when new city data is published. Nothing else, and nothing until you confirm.