Thrall, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Thrall.
The PVWatts model puts a generic roof array in Thrall at 1,499 kWh a year for each kW of panels, using typical-year weather from a station 2.2 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 Thrall climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 152, weakest 95: a ratio of 1.59.
How Thrall comparesderived from the figures above
Where Thrall sits.
Thrall ranks 753rd of 1220 Texas places modeled here, at the 38th percentile. Its 1,499 kWh per kW is below the Texas median of 1,515. The strongest months are August, July, June and the weakest are December, February, January; output peaks in August and bottoms out in December. In all, 29.6% of the year arrives in June, July and August, more than the 29.3% of the median place.
Closest modeled neighbors
- Thorndale, 9 km east: 1,497 kWh per kW, 2 less than Thrall.
- Taylor, 13 km west: 1,503 kWh per kW, 4 more than Thrall.
- Coupland, 17 km southwest: 1,495 kWh per kW, 4 less than Thrall.
- Granger, 20 km northwest: 1,529 kWh per kW, 30 more than Thrall.
- Hutto, 24 km west: 1,528 kWh per kW, 29 more than Thrall.
- Bartlett, 25 km northwest: 1,527 kWh per kW, 28 more than Thrall.
- Elgin, 28 km south: 1,491 kWh per kW, 8 less than Thrall.
- Rockdale, 29 km east: 1,498 kWh per kW, 1 less than Thrall.
- Weir, 29 km west: 1,533 kWh per kW, 34 more than Thrall.
Against Austin
The nearest of the six largest modeled places is Austin, 54 km to the southwest, at 1,483 kWh per kW. Thrall models 16 kWh per kW (1.1%) above it. At 0.29 degrees of latitude apart, the two sit at almost the same sun angle, so geometry explains little. 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, 172 km southwest, where the same model gives 1,505 kWh per kW, so Thrall runs 6 below that figure. It runs at least 2% lower in March, April, May, June.
Electricity in Williamson CountyEIA-861
Electricity prices nearby
EIA lists Oncor Electric Delivery in this county. Where Thrall is on Oncor Electric Delivery's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Thrall 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 1,499 kWh at $230 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Austin Energy: 13.14¢ per kWh, a bundled average, 522,446 residential customers across 2 counties.
- 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.
- Oncor Electric Delivery Company LLC: 5.64¢ per kWh, delivery charges only, before the retail energy price, 3,545,814 residential customers across 99 counties.
These utilities serve other parts of the county, which can include parts of Thrall. 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 Thrall 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 $231 per kW a year as plain multiplication.
PVWatts v8station 689815
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 103.4 |
| February | 100.3 |
| March | 122.4 |
| April | 126.5 |
| May | 139.0 |
| June | 142.4 |
| July | 150.0 |
| August | 151.8 |
| September | 134.4 |
| October | 125.3 |
| November | 108.8 |
| December | 95.3 |
| Year | 1,499 |
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 30.59, -97.3 (Thrall, population 873). Weather: typical-year data from station 689815, 2.2 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.
Email updatesdouble opt-in
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.