Sun on a roof in Tomball.

How Tomball comparesderived from the figures above

Where Tomball sits.

Tomball ranks 1110th of 1220 Texas places modeled here, at the 9th percentile. Its 1,426 kWh per kW is below the Texas median of 1,515. The strongest months are July, June, May and the weakest are February, January, December; output peaks in July and bottoms out in February. In all, 28.7% of the year arrives in June, July and August, less than the 29.3% of the median place.

Closest modeled neighbors

• Stagecoach, 9 km northwest: 1,429 kWh per kW, 3 more than Tomball.
• Magnolia, 17 km northwest: 1,428 kWh per kW, 2 more than Tomball.
• Shenandoah, 18 km northeast: 1,416 kWh per kW, 10 less than Tomball.
• Oak Ridge North, 19 km east: 1,397 kWh per kW, 29 less than Tomball.
• Jersey Village, 24 km south: 1,448 kWh per kW, 22 more than Tomball.
• Woodloch, 24 km northeast: 1,412 kWh per kW, 14 less than Tomball.
• Todd Mission, 27 km northwest: 1,409 kWh per kW, 17 less than Tomball.
• Conroe, 29 km northeast: 1,395 kWh per kW, 31 less than Tomball.
• Waller, 30 km west: 1,460 kWh per kW, 34 more than Tomball.

Against Houston

The nearest of the six largest modeled places is Houston, 41 km to the southeast, at 1,422 kWh per kW. Tomball models 4 kWh per kW (0.3%) above 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 Houston's.

The second-nearest large place is Austin, 206 km west, where the same model gives 1,483 kWh per kW, so Tomball runs 57 below that figure. It runs at least 2% lower in January, February, March, April, May, June, July, August, September, November.

Electricity in Harris County, Montgomery CountyEIA-861

Electricity prices nearby

EIA lists CenterPoint Energy Houston Electric in this county. Where Tomball is on CenterPoint Energy Houston Electric's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Tomball 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 1,426 kWh at $218 per kW a year, plain multiplication and not a savings estimate or an offer.

Also listed in the county

• Entergy Texas Inc.: 13.89¢ per kWh, a bundled average, 469,094 residential customers across 27 counties.
• Sam Houston Electric Coop Inc: 14.18¢ per kWh, a bundled average, 88,424 residential customers across 10 counties.
• Mid-South Electric Coop Assn: 15.37¢ per kWh, a bundled average, 37,251 residential customers across 6 counties.
• CenterPoint Energy: 5.41¢ per kWh, delivery charges only, before the retail energy price, 2,529,039 residential customers across 12 counties.

These utilities serve other parts of the county, which can include parts of Tomball. 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 Tomball 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 $220 per kW a year as plain multiplication.