Sun on a roof in Dorchester.

How Dorchester comparesderived from the figures above

Where Dorchester sits.

Dorchester ranks 481st of 1220 Texas places modeled here, at the 61st percentile. Its 1,529 kWh per kW is above the Texas median of 1,515. The strongest months are July, June, August and the weakest are January, December, February; output peaks in July and bottoms out in January. In all, 29.5% of the year arrives in June, July and August, more than the 29.3% of the median place.

Closest modeled neighbors

• Howe, 7 km east: 1,524 kWh per kW, 5 less than Dorchester.
• Southmayd, 10 km north: 1,521 kWh per kW, 8 less than Dorchester.
• Sherman, 12 km northeast: 1,520 kWh per kW, 9 less than Dorchester.
• Van Alstyne, 16 km southeast: 1,524 kWh per kW, 5 less than Dorchester.
• Gunter, 17 km southwest: 1,511 kWh per kW, 18 less than Dorchester.
• Knollwood, 19 km north: 1,490 kWh per kW, 39 less than Dorchester.
• Tom Bean, 19 km east: 1,518 kWh per kW, 11 less than Dorchester.
• Collinsville, 21 km west: 1,529 kWh per kW, 0 the same as Dorchester.
• Sadler, 22 km northwest: 1,524 kWh per kW, 5 less than Dorchester.

Against Dallas

The nearest of the six largest modeled places is Dallas, 83 km to the south, at 1,500 kWh per kW. Dorchester models 29 kWh per kW (1.9%) above it. Dorchester lies 0.74 degrees of latitude north 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 weather station for Dorchester is 0.9 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, 104 km southwest, where the same model gives 1,535 kWh per kW, so Dorchester runs 6 below that figure. Against the Texas median place month by month, Dorchester runs at least 2% higher in February, June, July, September, November, December. It runs at least 2% lower in March, August.

Electricity in Grayson CountyEIA-861

Electricity prices nearby

EIA lists Oncor Electric Delivery and Texas-New Mexico Power in this county. Where Dorchester 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 Dorchester 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 1,529 kWh at $234 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.
• Grayson-Collin Elec Coop, Inc: 17.04¢ per kWh, a bundled average, 97,950 residential customers across 4 counties.
• Cooke County Elec Coop Assn: 15.46¢ per kWh, a bundled average, 16,192 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 Dorchester. 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 Dorchester 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 $235 per kW a year as plain multiplication.