Dumas, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Dumas.
The PVWatts model puts a generic roof array in Dumas at 1,709 kWh a year for each kW of panels, using typical-year weather from a station 2.1 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 Dumas climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 169, weakest 107: a ratio of 1.58.
How Dumas comparesderived from the figures above
Where Dumas sits.
Dumas ranks 103rd of 1220 Texas places modeled here, at the 92nd percentile. Its 1,709 kWh per kW is above the Texas median of 1,515. The strongest months are May, July, June and the weakest are December, January, February; output peaks in May and bottoms out in December. In all, 28.8% of the year arrives in June, July and August, less than the 29.3% of the median place.
Closest modeled neighbors
- Cactus, 21 km north: 1,714 kWh per kW, 5 more than Dumas.
- Sunray, 22 km northeast: 1,690 kWh per kW, 19 less than Dumas.
- Channing, 39 km southwest: 1,717 kWh per kW, 8 more than Dumas.
- Fritch, 41 km southeast: 1,679 kWh per kW, 30 less than Dumas.
- Sanford, 43 km southeast: 1,680 kWh per kW, 29 less than Dumas.
- Stinnett, 47 km east: 1,684 kWh per kW, 25 less than Dumas.
- Dalhart, 54 km northwest: 1,739 kWh per kW, 30 more than Dumas.
- Stratford, 54 km north: 1,710 kWh per kW, 1 more than Dumas.
- Borger, 55 km southeast: 1,682 kWh per kW, 27 less than Dumas.
Against Fort Worth
The nearest of the six largest modeled places is Fort Worth, 544 km to the southeast, at 1,535 kWh per kW. Dumas models 174 kWh per kW (11.3%) above it. Dumas lies 3.08 degrees of latitude north of Fort Worth, which on sun angle alone would point the other way, so clouds, haze and the weather station's record carry the difference. The two weather stations sit a similar distance from their points (2.1 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, 586 km southeast, where the same model gives 1,500 kWh per kW, so Dumas runs 209 above that figure. Against the Texas median place month by month, Dumas runs at least 2% higher in January, February, March, April, May, June, July, August, September, October, November, December.
Electricity in Moore CountyEIA-861
Electricity prices nearby
Providers listed in the county
- Southwestern Public Service Co: 13.94¢ per kWh, a bundled average, 223,685 residential customers across 45 counties.
- Rita Blanca Electric Coop, Inc: 8.41¢ per kWh, a bundled average, 1,166 residential customers across 8 counties.
They are the largest bundled providers 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. Priced at the first provider's average, the modeled 1,709 kWh would come to $238 per kW a year, plain multiplication and not a savings estimate.
Modeled estimateruns in your browser
Size the array, see the kWh.
Scale the Dumas 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 $263 per kW a year as plain multiplication.
PVWatts v8station 564180
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 112.9 |
| February | 117.6 |
| March | 153.3 |
| April | 158.5 |
| May | 168.9 |
| June | 165.7 |
| July | 168.0 |
| August | 159.2 |
| September | 146.1 |
| October | 133.1 |
| November | 119.1 |
| December | 106.8 |
| Year | 1,709 |
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 35.86, -101.96 (Dumas, population 14,834). Weather: typical-year data from station 564180, 2.1 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.