Heath, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Heath.
The PVWatts model puts a generic roof array in Heath at 1,508 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 Heath climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 156, weakest 95: a ratio of 1.63.
How Heath comparesderived from the figures above
Where Heath sits.
Heath ranks 674th of 1220 Texas places modeled here, at the 45th percentile. Its 1,508 kWh per kW is below the Texas median of 1,515. The strongest months are July, August, June and the weakest are November, February, December; output peaks in July and bottoms out in November. In all, 30.0% of the year arrives in June, July and August, more than the 29.3% of the median place.
Closest modeled neighbors
- McLendon-Chisholm, 7 km east: 1,496 kWh per kW, 12 less than Heath.
- Rockwall, 8 km north: 1,524 kWh per kW, 16 more than Heath.
- Mobile City, 9 km northeast: 1,524 kWh per kW, 16 more than Heath.
- Sunnyvale, 11 km southwest: 1,488 kWh per kW, 20 less than Heath.
- Rowlett, 11 km northwest: 1,517 kWh per kW, 9 more than Heath.
- Forney, 12 km south: 1,514 kWh per kW, 6 more than Heath.
- Fate, 13 km northeast: 1,497 kWh per kW, 11 less than Heath.
- Mesquite, 15 km southwest: 1,488 kWh per kW, 20 less than Heath.
- Garland, 17 km northwest: 1,522 kWh per kW, 14 more than Heath.
Against Dallas
The nearest of the six largest modeled places is Dallas, 30 km to the west, at 1,500 kWh per kW. Heath models 8 kWh per kW (0.5%) above 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, 84 km west, where the same model gives 1,535 kWh per kW, so Heath runs 27 below that figure. Against the Texas median place month by month, Heath runs at least 2% higher in July, September, December. It runs at least 2% lower in February, October, November.
Electricity in Kaufman County, Rockwall CountyEIA-861
Electricity prices nearby
EIA lists Oncor Electric Delivery in this county. Where Heath is on Oncor Electric Delivery's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Heath 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 1,508 kWh at $231 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Farmers Electric Coop, Inc: 11.95¢ per kWh, a bundled average, 88,221 residential customers across 12 counties.
- Trinity Valley Elec Coop Inc: 12.24¢ per kWh, a bundled average, 82,224 residential customers across 6 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 Heath. 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 Heath 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 $232 per kW a year as plain multiplication.
PVWatts v8station 709761
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 101.0 |
| February | 97.6 |
| March | 123.8 |
| April | 137.4 |
| May | 141.8 |
| June | 145.9 |
| July | 155.7 |
| August | 151.2 |
| September | 137.5 |
| October | 121.0 |
| November | 95.4 |
| December | 99.3 |
| Year | 1,508 |
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 32.85, -96.46 (Heath, population 11,499). Weather: typical-year data from station 709761, 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.