Sun on a roof in Marble Falls.

How Marble Falls comparesderived from the figures above

Where Marble Falls sits.

Marble Falls ranks 689th of 1220 Texas places modeled here, at the 44th percentile. Its 1,507 kWh per kW is below the Texas median of 1,515. The strongest months are July, August, June and the weakest are November, December, February; output peaks in July and bottoms out in November. 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

• Meadowlakes, 2 km west: 1,533 kWh per kW, 26 more than Marble Falls.
• Cottonwood Shores, 5 km west: 1,527 kWh per kW, 20 more than Marble Falls.
• Double Horn, 9 km southeast: 1,517 kWh per kW, 10 more than Marble Falls.
• Granite Shoals, 9 km west: 1,524 kWh per kW, 17 more than Marble Falls.
• Horseshoe Bay, 10 km west: 1,546 kWh per kW, 39 more than Marble Falls.
• Highland Haven, 13 km northwest: 1,524 kWh per kW, 17 more than Marble Falls.
• Sunrise Beach Village, 14 km west: 1,526 kWh per kW, 19 more than Marble Falls.
• Round Mountain, 20 km south: 1,553 kWh per kW, 46 more than Marble Falls.
• Burnet, 21 km north: 1,540 kWh per kW, 33 more than Marble Falls.

Against Austin

The nearest of the six largest modeled places is Austin, 58 km to the southeast, at 1,483 kWh per kW. Marble Falls models 24 kWh per kW (1.6%) above it. At 0.26 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 San Antonio, 124 km south, where the same model gives 1,505 kWh per kW, so Marble Falls runs 2 above that figure. Against the Texas median place month by month, Marble Falls runs at least 2% higher in January, October. It runs at least 2% lower in March, May, November.

Electricity in Burnet CountyEIA-861

Electricity prices nearby

EIA lists Oncor Electric Delivery in this county. Where Marble Falls is on Oncor Electric Delivery's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Marble Falls 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 1,507 kWh at $231 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Pedernales Electric Coop, Inc: 12.75¢ per kWh, a bundled average, 420,753 residential customers across 24 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 Marble Falls. 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 Marble Falls 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 $232 per kW a year as plain multiplication.