Sun on a roof in Granger.

How Granger comparesderived from the figures above

Where Granger sits.

Granger 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 August, July, June and the weakest are December, February, January; output peaks in August and bottoms out in December. 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

• Bartlett, 8 km north: 1,527 kWh per kW, 2 less than Granger.
• Weir, 15 km west: 1,533 kWh per kW, 4 more than Granger.
• Taylor, 17 km south: 1,503 kWh per kW, 26 less than Granger.
• Holland, 19 km north: 1,518 kWh per kW, 11 less than Granger.
• Thrall, 20 km southeast: 1,499 kWh per kW, 30 less than Granger.
• Jarrell, 20 km northwest: 1,524 kWh per kW, 5 less than Granger.
• Hutto, 22 km southwest: 1,528 kWh per kW, 1 less than Granger.
• Thorndale, 25 km southeast: 1,497 kWh per kW, 32 less than Granger.
• Georgetown, 25 km west: 1,518 kWh per kW, 11 less than Granger.

Against Austin

The nearest of the six largest modeled places is Austin, 55 km to the southwest, at 1,483 kWh per kW. Granger models 46 kWh per kW (3.1%) above it. Granger lies 0.42 degrees of latitude north of Austin, 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 (2.2 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 San Antonio, 174 km southwest, where the same model gives 1,505 kWh per kW, so Granger runs 24 above that figure. Against the Texas median place month by month, Granger runs at least 2% higher in January, August, October. It runs at least 2% lower in February, March.

Electricity in Williamson CountyEIA-861

Electricity prices nearby

EIA lists Oncor Electric Delivery in this county. Where Granger is on Oncor Electric Delivery's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Granger 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

• Austin Energy: 13.14¢ per kWh, a bundled average, 522,446 residential customers across 2 counties.
• Pedernales Electric Coop, Inc: 12.75¢ per kWh, a bundled average, 420,753 residential customers across 24 counties.
• Bluebonnet Electric Coop, Inc: 11.59¢ per kWh, a bundled average, 119,030 residential customers across 14 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 Granger. 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 Granger 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.