Sun on a roof in Greenville.

How Greenville comparesderived from the figures above

Where Greenville sits.

Greenville ranks 130th of 157 Texas places modeled here, at the 18th percentile. Its 1,466 kWh per kW is below the Texas median of 1,518. The strongest months are July, August, May and the weakest are December, January, November; output peaks in July and bottoms out in December. In all, 29.7% of the year arrives in June, July and August, more than the 29.4% of the median place.

Closest modeled neighbors

• Royse City, 24 km southwest: 1,479 kWh per kW, 13 more than Greenville.
• Fate, 31 km southwest: 1,497 kWh per kW, 31 more than Greenville.
• Rockwall, 37 km southwest: 1,524 kWh per kW, 58 more than Greenville.
• Princeton, 38 km west: 1,523 kWh per kW, 57 more than Greenville.
• Wylie, 40 km west: 1,534 kWh per kW, 68 more than Greenville.
• Terrell, 46 km southwest: 1,479 kWh per kW, 13 more than Greenville.
• Rowlett, 46 km southwest: 1,517 kWh per kW, 51 more than Greenville.
• Melissa, 46 km northwest: 1,517 kWh per kW, 51 more than Greenville.
• Sachse, 46 km west: 1,507 kWh per kW, 41 more than Greenville.

Against Dallas

The nearest of the six largest modeled places is Dallas, 71 km to the southwest, at 1,500 kWh per kW. Greenville models 34 kWh per kW (2.3%) below it. Greenville lies 0.32 degrees of latitude north of Dallas, and the sun stands higher in the sky the further south you go, which matches its lower modeled output. The two weather stations sit a similar distance from their points (2.4 km and 2.4 km), so station distance does little to explain the gap, and the weather record does the rest.

The second-nearest large place is Fort Worth, 121 km west, where the same model gives 1,535 kWh per kW, so Greenville runs 69 below that figure. It runs at least 2% lower in January, February, March, June, August, November, December.

Electricity in Hunt CountyEIA-861

Electricity prices nearby

Greenville is served by its own municipal utility, City of Greenville. Municipal utilities in Texas generally sit outside retail choice, so homes in the city buy from the city utility. Its 2025 residential average was 16.65¢ per kWh, which would put the modeled 1,466 kWh at $244 per kW a year, plain multiplication and not a savings estimate.

Other providers 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 serve areas outside the city utility. 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 Greenville 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 $227 per kW a year as plain multiplication.