Sweetwater, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Sweetwater.
The PVWatts model puts a generic roof array in Sweetwater at 1,667 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 Sweetwater climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 163, weakest 111: a ratio of 1.47.
How Sweetwater comparesderived from the figures above
Where Sweetwater sits.
Sweetwater ranks 148th of 1220 Texas places modeled here, at the 88th percentile. Its 1,667 kWh per kW is above the Texas median of 1,515. The strongest months are May, July, April and the weakest are December, November, February; output peaks in May and bottoms out in December. In all, 28.3% of the year arrives in June, July and August, less than the 29.3% of the median place.
Closest modeled neighbors
- Roscoe, 12 km west: 1,673 kWh per kW, 6 more than Sweetwater.
- Trent, 27 km east: 1,646 kWh per kW, 21 less than Sweetwater.
- Loraine, 29 km west: 1,672 kWh per kW, 5 more than Sweetwater.
- Roby, 31 km north: 1,663 kWh per kW, 4 less than Sweetwater.
- Merkel, 38 km east: 1,646 kWh per kW, 21 less than Sweetwater.
- Rotan, 43 km north: 1,679 kWh per kW, 12 more than Sweetwater.
- Colorado City, 43 km west: 1,696 kWh per kW, 29 more than Sweetwater.
- Blackwell, 43 km south: 1,664 kWh per kW, 3 less than Sweetwater.
- Tye, 51 km east: 1,632 kWh per kW, 35 less than Sweetwater.
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. Sweetwater models 132 kWh per kW (8.6%) above it. Sweetwater lies 0.31 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 (2.4 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 Dallas, 343 km east, where the same model gives 1,500 kWh per kW, so Sweetwater runs 167 above that figure. Against the Texas median place month by month, Sweetwater runs at least 2% higher in January, February, March, April, May, June, July, August, September, October, November, December.
Electricity in Nolan CountyEIA-861
Electricity prices nearby
EIA lists Oncor Electric Delivery and AEP Texas North in this county. Where Sweetwater 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 Sweetwater 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 1,667 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 Sweetwater. 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 Sweetwater 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 $257 per kW a year as plain multiplication.
PVWatts v8station 604221
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 119.7 |
| February | 116.7 |
| March | 141.0 |
| April | 157.3 |
| May | 163.0 |
| June | 156.4 |
| July | 162.9 |
| August | 153.0 |
| September | 136.8 |
| October | 135.6 |
| November | 113.4 |
| December | 110.6 |
| Year | 1,667 |
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 32.47, -100.41 (Sweetwater, population 10,196). Weather: typical-year data from station 604221, 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.