Rate & Roof

Humble, TXLocal --:--Sun now --Daylight today --

Sun on a roof in Humble.

The PVWatts model puts a generic roof array in Humble at 1,434 kWh a year for each kW of panels, using typical-year weather from a station 2.2 km away. A modeled estimate for a standard setup, not a measurement of any roof.

A year on one roof.

Scroll from January to December: the noon sun over Humble climbs and falls, and the modeled output follows it.

Sun elevation through the day over Humble The sun's path at latitude 29.99, computed from solar geometry. The upper dotted arc is the June solstice and the lower one the December solstice; the solid arc is the month being shown.
MonthAll 12 monthsNoon sun-Daylight-Modeled output per kW1,434 kWh

kWh per kW DC, modeled by PVWatts. Best month 144, weakest 86: a ratio of 1.69.

How Humble comparesderived from the figures above

Where Humble sits.

Humble ranks 1084th of 1220 Texas places modeled here, at the 11th percentile. Its 1,434 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, 29.7% of the year arrives in June, July and August, more than the 29.3% of the median place.

Closest modeled neighbors

  • Woodbranch, 22 km north: 1,413 kWh per kW, 21 less than Humble.
  • Roman Forest, 24 km northeast: 1,420 kWh per kW, 14 less than Humble.
  • Jacinto City, 25 km south: 1,450 kWh per kW, 16 more than Humble.
  • Patton Village, 25 km north: 1,387 kWh per kW, 47 less than Humble.
  • Houston, 26 km southwest: 1,422 kWh per kW, 12 less than Humble.
  • Oak Ridge North, 26 km northwest: 1,397 kWh per kW, 37 less than Humble.
  • Galena Park, 27 km south: 1,450 kWh per kW, 16 more than Humble.
  • Plum Grove, 28 km northeast: 1,416 kWh per kW, 18 less than Humble.
  • Splendora, 28 km north: 1,362 kWh per kW, 72 less than Humble.

Against Houston

The nearest of the six largest modeled places is Houston, 26 km to the southwest, at 1,422 kWh per kW. Humble models 12 kWh per kW (0.8%) 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, 242 km west, where the same model gives 1,483 kWh per kW, so Humble runs 49 below that figure. It runs at least 2% lower in January, February, April, May, June, July, August, September, October, November, December.

Electricity in Harris CountyEIA-861

Electricity prices nearby

EIA lists CenterPoint Energy Houston Electric in this county. Where Humble 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 Humble 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 1,434 kWh at $220 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 Humble. 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 Humble 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 $221 per kW a year as plain multiplication.

Modeled estimate

Modeled output, kWh a year

8,604 kWh/yr

About - kWh in an average month. Priced at the chosen rate that energy comes to - a year, by multiplication only.

Assumes the same tilt, direction and equipment as the model below. Real output depends on the roof, shade, equipment and weather.

PVWatts v8station 736803

Month by month, per kW.

Modeled AC output in Humble, Texas, kWh per kW DC, typical weather year
MonthkWh per kW
January98.4
February85.6
March124.0
April126.9
May134.4
June138.3
July144.3
August143.5
September123.8
October121.6
November101.9
December91.4
Year1,434

Model assumptions

System size
1 kWDC, results scale per kW
Mount
fixed roof mount
Tilt
20°
Azimuth
180°due south
Modules
standard
System losses
14%

Location 29.99, -95.26 (Humble, population 16,561). Weather: typical-year data from station 736803, 2.2 km from that point.

Getting a measured number

A model cannot see your roof. Installers measure pitch, shade and the electrical panel on site. Quote marketplaces such as EnergySage, SolarReviews and WattBuy collect bids from local installers. Rate & Roof does not rank installers.

Texas electricity prices and providers

Next step

Payback, buyback.

The sliders above price the energy at one rate. The payback calculator adds the system cost and your buyback plan type, and shows every assumption. It is an estimate, not advice.

Email updatesdouble opt-in

Rates change. Get told.

One list, for Texas solar buyback plans. We write when a tracked rate changes and when new city data is published. Nothing else, and nothing until you confirm.

Read this first

  • A model estimate for a generic system at this point, not a measurement and not a promise of output.
  • Shading, roof pitch, equipment and local rates will differ.
  • All prices on this site are in cents per kWh unless marked otherwise. Bills are US dollars per month.

Credits and notices

The credits and notices that each data source requires are printed word for word with that source in the Sources list below.