Sun on a roof in Arp.

How Arp comparesderived from the figures above

Where Arp sits.

Arp ranks 986th of 1220 Texas places modeled here, at the 19th percentile. Its 1,459 kWh per kW is below the Texas median of 1,515. The strongest months are July, August, June and the weakest are December, January, February; output peaks in July and bottoms out in December. 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

• Overton, 9 km northeast: 1,449 kWh per kW, 10 less than Arp.
• Troup, 11 km southwest: 1,445 kWh per kW, 14 less than Arp.
• New London, 12 km east: 1,461 kWh per kW, 2 more than Arp.
• New Chapel Hill, 14 km northwest: 1,463 kWh per kW, 4 more than Arp.
• Whitehouse, 16 km west: 1,458 kWh per kW, 1 less than Arp.
• Henderson, 25 km east: 1,437 kWh per kW, 22 less than Arp.
• Kilgore, 26 km northeast: 1,453 kWh per kW, 6 less than Arp.
• Tyler, 26 km west: 1,463 kWh per kW, 4 more than Arp.
• Bullard, 27 km west: 1,429 kWh per kW, 30 less than Arp.

Against Dallas

The nearest of the six largest modeled places is Dallas, 173 km to the west, at 1,500 kWh per kW. Arp models 41 kWh per kW (2.7%) below it. Arp lies 0.56 degrees of latitude south of Dallas, 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 (2.4 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, 224 km west, where the same model gives 1,535 kWh per kW, so Arp runs 76 below that figure. It runs at least 2% lower in January, February, March, June, August, October, November, December.

Electricity in Smith CountyEIA-861

Electricity prices nearby

EIA lists Oncor Electric Delivery in this county. Where Arp is on Oncor Electric Delivery's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Arp 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 1,459 kWh at $224 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Southwestern Electric Power Co: 12.6¢ per kWh, a bundled average, 157,119 residential customers across 25 counties.
• Upshur Rural Elec Coop Corp: 12.71¢ per kWh, a bundled average, 44,971 residential customers across 10 counties.
• Wood County Electric Coop, Inc: 12.83¢ per kWh, a bundled average, 36,173 residential customers across 9 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 Arp. 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 Arp 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 $225 per kW a year as plain multiplication.