Grand Prairie, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Grand Prairie.
The PVWatts model puts a generic roof array in Grand Prairie at 1,516 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 Grand Prairie climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 154, weakest 87: a ratio of 1.77.
How Grand Prairie comparesderived from the figures above
Where Grand Prairie sits.
Grand Prairie ranks 87th of 157 Texas places modeled here, at the 45th percentile. Its 1,516 kWh per kW is below the Texas median of 1,518. The strongest months are July, August, June and the weakest are December, February, January; output peaks in July and bottoms out in December. In all, 29.8% of the year arrives in June, July and August, more than the 29.4% of the median place.
Closest modeled neighbors
- Arlington, 9 km west: 1,559 kWh per kW, 43 more than Grand Prairie.
- Duncanville, 11 km southeast: 1,523 kWh per kW, 7 more than Grand Prairie.
- Cedar Hill, 13 km southeast: 1,506 kWh per kW, 10 less than Grand Prairie.
- Mansfield, 16 km southwest: 1,517 kWh per kW, 1 more than Grand Prairie.
- DeSoto, 18 km southeast: 1,525 kWh per kW, 9 more than Grand Prairie.
- Euless, 19 km north: 1,556 kWh per kW, 40 more than Grand Prairie.
- Irving, 19 km north: 1,499 kWh per kW, 17 less than Grand Prairie.
- Bedford, 21 km northwest: 1,542 kWh per kW, 26 more than Grand Prairie.
- Glenn Heights, 22 km southeast: 1,526 kWh per kW, 10 more than Grand Prairie.
Against Dallas
The nearest of the six largest modeled places is Dallas, 26 km to the northeast, at 1,500 kWh per kW. Grand Prairie models 16 kWh per kW (1.1%) above it. At 0.1 degrees of latitude apart, the two sit at almost the same sun angle, so geometry explains little. The weather station for Grand Prairie is 0.0 km from the modeled point, against 2.4 km for Dallas, so part of the gap can come from which station's typical year was used.
The second-nearest large place is Fort Worth, 32 km west, where the same model gives 1,535 kWh per kW, so Grand Prairie runs 19 below that figure. Against the Texas median place month by month, Grand Prairie runs at least 2% higher in January, September, November. It runs at least 2% lower in April, October, December.
Electricity in Dallas County, Tarrant County, Ellis CountyEIA-861
Electricity prices nearby
EIA lists Oncor Electric Delivery and Texas-New Mexico Power in this county. Where Grand Prairie is on Oncor Electric Delivery and Texas-New Mexico Power's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Grand Prairie 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 1,516 kWh at $232 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Denton County Elec Coop, Inc: 13.18¢ per kWh, a bundled average, 310,805 residential customers across 6 counties.
- Tri-County Electric Coop, Inc (TX): 15.07¢ per kWh, a bundled average, 117,857 residential customers across 16 counties.
- United Electric Coop Service Inc: 13.91¢ per kWh, a bundled average, 91,268 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 Grand Prairie. 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 Grand Prairie 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 15.47¢ per kWh. At that rate the modeled output is worth $235 per kW a year as plain multiplication.
PVWatts v8station 696852
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 106.5 |
| February | 100.0 |
| March | 125.0 |
| April | 132.6 |
| May | 142.4 |
| June | 148.0 |
| July | 154.1 |
| August | 149.3 |
| September | 137.5 |
| October | 121.6 |
| November | 112.4 |
| December | 87.2 |
| Year | 1,516 |
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 32.69, -97.02 (Grand Prairie, population 207,331). Weather: typical-year data from station 696852, 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.
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.