Sun on a roof in Roby.

How Roby comparesderived from the figures above

Where Roby sits.

Roby ranks 152nd of 1220 Texas places modeled here, at the 88th percentile. Its 1,663 kWh per kW is above the Texas median of 1,515. The strongest months are May, June, July and the weakest are December, November, January; output peaks in May and bottoms out in December. In all, 28.2% of the year arrives in June, July and August, less than the 29.3% of the median place.

Closest modeled neighbors

• Rotan, 14 km northwest: 1,679 kWh per kW, 16 more than Roby.
• Hamlin, 28 km northeast: 1,648 kWh per kW, 15 less than Roby.
• Sweetwater, 31 km south: 1,667 kWh per kW, 4 more than Roby.
• Roscoe, 37 km south: 1,673 kWh per kW, 10 more than Roby.
• Trent, 38 km southeast: 1,646 kWh per kW, 17 less than Roby.
• Anson, 45 km east: 1,644 kWh per kW, 19 less than Roby.
• Aspermont, 46 km north: 1,672 kWh per kW, 9 more than Roby.
• Merkel, 47 km southeast: 1,646 kWh per kW, 17 less than Roby.
• Loraine, 49 km southwest: 1,672 kWh per kW, 9 more than Roby.

Against Fort Worth

The nearest of the six largest modeled places is Fort Worth, 283 km to the east, at 1,535 kWh per kW. Roby models 128 kWh per kW (8.3%) above it. At 0.03 degrees of latitude apart, the two sit at almost the same sun angle, so geometry explains little. The two weather stations sit a similar distance from their points (2.2 km and 1.5 km), so station distance does little to explain the gap, and the weather record does the rest.

The second-nearest large place is Dallas, 338 km east, where the same model gives 1,500 kWh per kW, so Roby runs 163 above that figure. Against the Texas median place month by month, Roby runs at least 2% higher in January, February, March, April, May, June, July, August, September, October, November, December.

Electricity in Fisher CountyEIA-861

Electricity prices nearby

EIA lists Oncor Electric Delivery and AEP Texas North in this county. Where Roby is on Oncor Electric Delivery and AEP Texas North's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Roby 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 1,663 kWh at $255 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Taylor Electric Coop Inc: 16.14¢ per kWh, a bundled average, 19,215 residential customers across 11 counties.
• Big Country Electric Coop, Inc: 13.33¢ per kWh, a bundled average, 9,533 residential customers across 12 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 Roby. 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 Roby 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 $256 per kW a year as plain multiplication.