Sun on a roof in Nassau Bay.

How Nassau Bay comparesderived from the figures above

Where Nassau Bay sits.

Nassau Bay ranks 1020th of 1220 Texas places modeled here, at the 16th percentile. Its 1,451 kWh per kW is below the Texas median of 1,515. The strongest months are August, June, July and the weakest are December, February, January; output peaks in August and bottoms out in December. 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

• Webster, 3 km west: 1,451 kWh per kW, 0 the same as Nassau Bay.
• Taylor Lake Village, 4 km northeast: 1,469 kWh per kW, 18 more than Nassau Bay.
• El Lago, 5 km northeast: 1,469 kWh per kW, 18 more than Nassau Bay.
• Clear Lake Shores, 6 km east: 1,450 kWh per kW, 1 less than Nassau Bay.
• League City, 6 km south: 1,440 kWh per kW, 11 less than Nassau Bay.
• Kemah, 7 km east: 1,450 kWh per kW, 1 less than Nassau Bay.
• Dickinson, 10 km south: 1,457 kWh per kW, 6 more than Nassau Bay.
• Friendswood, 11 km west: 1,434 kWh per kW, 17 less than Nassau Bay.
• Seabrook, 11 km northeast: 1,440 kWh per kW, 11 less than Nassau Bay.

Against Houston

The nearest of the six largest modeled places is Houston, 40 km to the northwest, at 1,422 kWh per kW. Nassau Bay models 29 kWh per kW (2.0%) above it. At 0.25 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 (1.5 km and 2.4 km), so station distance does little to explain the gap, and the weather record does the rest.

The second-nearest large place is Austin, 270 km west, where the same model gives 1,483 kWh per kW, so Nassau Bay runs 32 below that figure. It runs at least 2% lower in February, March, April, May, June, July, August, September, October, December.

Electricity in Harris CountyEIA-861

Electricity prices nearby

EIA lists CenterPoint Energy Houston Electric in this county. Where Nassau Bay 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 Nassau Bay 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 1,451 kWh at $222 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.
• San Bernard Electric Coop, Inc: 14.11¢ per kWh, a bundled average, 32,557 residential customers across 8 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 Nassau Bay. 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 Nassau Bay 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 $223 per kW a year as plain multiplication.