Pearsall, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Pearsall.
The PVWatts model puts a generic roof array in Pearsall at 1,538 kWh a year for each kW of panels, using typical-year weather from a station 0.0 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 Pearsall climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 155, weakest 101: a ratio of 1.53.
How Pearsall comparesderived from the figures above
Where Pearsall sits.
Pearsall ranks 428th of 1220 Texas places modeled here, at the 65th percentile. Its 1,538 kWh per kW is above the Texas median of 1,515. The strongest months are August, July, June and the weakest are December, January, February; output peaks in August and bottoms out in December. 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
- Dilley, 26 km south: 1,566 kWh per kW, 28 more than Pearsall.
- Devine, 35 km northeast: 1,522 kWh per kW, 16 less than Pearsall.
- Charlotte, 39 km east: 1,526 kWh per kW, 12 less than Pearsall.
- Natalia, 41 km northeast: 1,508 kWh per kW, 30 less than Pearsall.
- Lytle, 48 km northeast: 1,510 kWh per kW, 28 less than Pearsall.
- Hondo, 51 km north: 1,542 kWh per kW, 4 more than Pearsall.
- Cotulla, 52 km south: 1,564 kWh per kW, 26 more than Pearsall.
- Poteet, 54 km east: 1,515 kWh per kW, 23 less than Pearsall.
- LaCoste, 55 km northeast: 1,527 kWh per kW, 11 less than Pearsall.
Against San Antonio
The nearest of the six largest modeled places is San Antonio, 85 km to the northeast, at 1,505 kWh per kW. Pearsall models 33 kWh per kW (2.2%) above it. Pearsall lies 0.57 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 Pearsall is 0.0 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, 204 km northeast, where the same model gives 1,483 kWh per kW, so Pearsall runs 55 above that figure. Against the Texas median place month by month, Pearsall runs at least 2% higher in January, February, August, October, November, December. It runs at least 2% lower in April, June.
Electricity in Frio CountyEIA-861
Electricity prices nearby
EIA lists AEP Texas Central in this county. Where Pearsall is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Pearsall 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 1,538 kWh at $236 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Medina Electric Coop, Inc: 12.54¢ per kWh, a bundled average, 30,778 residential customers across 17 counties.
- Karnes Electric Coop Inc: 10.25¢ per kWh, a bundled average, 13,599 residential customers across 12 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 Pearsall. 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 Pearsall 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 $237 per kW a year as plain multiplication.
PVWatts v8station 640226
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 104.7 |
| February | 111.6 |
| March | 126.5 |
| April | 126.7 |
| May | 140.6 |
| June | 142.7 |
| July | 153.4 |
| August | 154.9 |
| September | 131.6 |
| October | 132.4 |
| November | 111.9 |
| December | 101.2 |
| Year | 1,538 |
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 28.89, -99.1 (Pearsall, population 9,541). Weather: typical-year data from station 640226, 0.0 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.
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