Sun Valley, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Sun Valley.
The PVWatts model puts a generic roof array in Sun Valley at 1,492 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 Sun Valley climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 156, weakest 90: a ratio of 1.72.
How Sun Valley comparesderived from the figures above
Where Sun Valley sits.
Sun Valley ranks 807th of 1220 Texas places modeled here, at the 34th percentile. Its 1,492 kWh per kW is below the Texas median of 1,515. The strongest months are July, August, June and the weakest are February, December, November; output peaks in July and bottoms out in February. In all, 30.5% of the year arrives in June, July and August, more than the 29.3% of the median place.
Closest modeled neighbors
- Blossom, 5 km east: 1,493 kWh per kW, 1 more than Sun Valley.
- Paris, 11 km west: 1,498 kWh per kW, 6 more than Sun Valley.
- Detroit, 15 km east: 1,464 kWh per kW, 28 less than Sun Valley.
- Deport, 19 km southeast: 1,484 kWh per kW, 8 less than Sun Valley.
- Toco, 20 km west: 1,491 kWh per kW, 1 less than Sun Valley.
- Roxton, 30 km southwest: 1,503 kWh per kW, 11 more than Sun Valley.
- Bogata, 30 km southeast: 1,465 kWh per kW, 27 less than Sun Valley.
- Clarksville, 35 km east: 1,447 kWh per kW, 45 less than Sun Valley.
- Tira, 39 km south: 1,470 kWh per kW, 22 less than Sun Valley.
Against Dallas
The nearest of the six largest modeled places is Dallas, 158 km to the southwest, at 1,500 kWh per kW. Sun Valley models 8 kWh per kW (0.5%) below it. The two figures are within 1 percent, which is about the size of the difference you get from two neighboring weather stations alone, so this page's result is effectively the same as Dallas's.
The second-nearest large place is Fort Worth, 204 km southwest, where the same model gives 1,535 kWh per kW, so Sun Valley runs 43 below that figure. Against the Texas median place month by month, Sun Valley runs at least 2% higher in June, July. It runs at least 2% lower in January, February, May, September, November, December.
Electricity in Lamar CountyEIA-861
Electricity prices nearby
EIA lists Oncor Electric Delivery and Texas-New Mexico Power in this county. Where Sun Valley 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 Sun Valley 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 1,492 kWh at $229 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Lamar County Elec Coop Assn: 13.43¢ per kWh, a bundled average, 13,121 residential customers across 4 counties.
- Fannin County Electric Coop: 16.25¢ per kWh, a bundled average, 11,962 residential customers across 5 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 Sun Valley. 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 Sun Valley 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 $230 per kW a year as plain multiplication.
PVWatts v8station 733296
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 99.6 |
| February | 90.4 |
| March | 123.3 |
| April | 134.7 |
| May | 140.0 |
| June | 149.2 |
| July | 155.6 |
| August | 150.1 |
| September | 128.7 |
| October | 126.0 |
| November | 99.3 |
| December | 94.6 |
| Year | 1,492 |
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 33.67, -95.43 (Sun Valley, population 74). Weather: typical-year data from station 733296, 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.