Blackwell, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Blackwell.
The PVWatts model puts a generic roof array in Blackwell at 1,664 kWh a year for each kW of panels, using typical-year weather from a station 1.9 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 Blackwell climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 159, weakest 107: a ratio of 1.49.
How Blackwell comparesderived from the figures above
Where Blackwell sits.
Blackwell ranks 151st of 1220 Texas places modeled here, at the 88th percentile. Its 1,664 kWh per kW is above the Texas median of 1,515. The strongest months are August, May, June and the weakest are December, February, November; output peaks in August and bottoms out in December. In all, 28.5% of the year arrives in June, July and August, less than the 29.3% of the median place.
Closest modeled neighbors
- Bronte, 22 km south: 1,649 kWh per kW, 15 less than Blackwell.
- Robert Lee, 27 km southwest: 1,662 kWh per kW, 2 less than Blackwell.
- Winters, 37 km southeast: 1,634 kWh per kW, 30 less than Blackwell.
- Sweetwater, 43 km north: 1,667 kWh per kW, 3 more than Blackwell.
- Roscoe, 44 km northwest: 1,673 kWh per kW, 9 more than Blackwell.
- Trent, 48 km northeast: 1,646 kWh per kW, 18 less than Blackwell.
- Buffalo Gap, 51 km northeast: 1,642 kWh per kW, 22 less than Blackwell.
- Tuscola, 51 km east: 1,635 kWh per kW, 29 less than Blackwell.
- Loraine, 51 km northwest: 1,672 kWh per kW, 8 more than Blackwell.
Against Fort Worth
The nearest of the six largest modeled places is Fort Worth, 289 km to the east, at 1,535 kWh per kW. Blackwell models 129 kWh per kW (8.4%) above it. Blackwell lies 0.69 degrees of latitude south of Fort Worth, 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 (1.9 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 Austin, 315 km southeast, where the same model gives 1,483 kWh per kW, so Blackwell runs 181 above that figure. Against the Texas median place month by month, Blackwell runs at least 2% higher in January, February, March, April, May, June, July, August, October, November, December.
Electricity in Nolan County, Coke CountyEIA-861
Electricity prices nearby
EIA lists Oncor Electric Delivery and AEP Texas North in this county. Where Blackwell is on Oncor Electric Delivery and AEP Texas North's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Blackwell 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 1,664 kWh at $255 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Taylor Electric Coop Inc: 16.14¢ per kWh, a bundled average, 19,215 residential customers across 11 counties.
- Concho Valley Elec Coop Inc: 13.5¢ per kWh, a bundled average, 12,230 residential customers across 10 counties.
- Big Country Electric Coop, Inc: 13.33¢ per kWh, a bundled average, 9,533 residential customers across 12 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 Blackwell. 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 Blackwell 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 $256 per kW a year as plain multiplication.
PVWatts v8station 608167
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 116.9 |
| February | 115.4 |
| March | 152.2 |
| April | 154.2 |
| May | 157.9 |
| June | 157.3 |
| July | 157.3 |
| August | 158.9 |
| September | 134.4 |
| October | 135.6 |
| November | 116.9 |
| December | 106.9 |
| Year | 1,664 |
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 32.09, -100.32 (Blackwell, population 250). Weather: typical-year data from station 608167, 1.9 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.