Sun on a roof in Marion.

How Marion comparesderived from the figures above

Where Marion sits.

Marion ranks 783rd of 1220 Texas places modeled here, at the 36th percentile. Its 1,496 kWh per kW is below the Texas median of 1,515. The strongest months are July, August, June and the weakest are February, December, January; output peaks in July and bottoms out in February. In all, 29.3% of the year arrives in June, July and August, about the same than the 29.3% of the median place.

Closest modeled neighbors

• Santa Clara, 3 km northwest: 1,508 kWh per kW, 12 more than Marion.
• Cibolo, 8 km west: 1,496 kWh per kW, 0 the same as Marion.
• New Berlin, 9 km south: 1,499 kWh per kW, 3 more than Marion.
• Schertz, 11 km west: 1,502 kWh per kW, 6 more than Marion.
• New Braunfels, 15 km north: 1,498 kWh per kW, 2 more than Marion.
• Garden Ridge, 16 km northwest: 1,502 kWh per kW, 6 more than Marion.
• Seguin, 17 km east: 1,498 kWh per kW, 2 more than Marion.
• Universal City, 17 km west: 1,516 kWh per kW, 20 more than Marion.
• Converse, 17 km southwest: 1,511 kWh per kW, 15 more than Marion.

Against San Antonio

The nearest of the six largest modeled places is San Antonio, 39 km to the west, at 1,505 kWh per kW. Marion models 9 kWh per kW (0.6%) below it. The two figures are within 1 percent, which is about the size of the difference you get from two neighboring weather stations alone, so this page's result is effectively the same as San Antonio's.

The second-nearest large place is Austin, 89 km northeast, where the same model gives 1,483 kWh per kW, so Marion runs 13 above that figure. Against the Texas median place month by month, Marion runs at least 2% higher in March, October, November. It runs at least 2% lower in January, February, April, May, June, July, September.

Electricity in Guadalupe CountyEIA-861

Electricity prices nearby

EIA lists AEP Texas Central in this county. Where Marion is on AEP Texas Central's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Marion 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 1,496 kWh at $229 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• City of San Antonio: 12.4¢ per kWh, a bundled average, 888,946 residential customers across 8 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.
• AEP Texas Central Company: 5.91¢ per kWh, delivery charges only, before the retail energy price, 793,896 residential customers across 44 counties.

These utilities serve other parts of the county, which can include parts of Marion. 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 Marion 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 $230 per kW a year as plain multiplication.