Rate & Roof

Shavano Park, TXLocal --:--Sun now --Daylight today --

Sun on a roof in Shavano Park.

The PVWatts model puts a generic roof array in Shavano Park at 1,456 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 Shavano Park climbs and falls, and the modeled output follows it.

Sun elevation through the day over Shavano Park The sun's path at latitude 29.58, 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 kW1,456 kWh

kWh per kW DC, modeled by PVWatts. Best month 151, weakest 94: a ratio of 1.61.

How Shavano Park comparesderived from the figures above

Where Shavano Park sits.

Shavano Park ranks 1000th of 1220 Texas places modeled here, at the 18th percentile. Its 1,456 kWh per kW is below the Texas median of 1,515. The strongest months are August, July, June and the weakest are February, December, November; output peaks in August and bottoms out in February. In all, 30.1% of the year arrives in June, July and August, more than the 29.3% of the median place.

Closest modeled neighbors

  • Hill Country Village, 7 km east: 1,503 kWh per kW, 47 more than Shavano Park.
  • Hollywood Park, 7 km east: 1,502 kWh per kW, 46 more than Shavano Park.
  • Castle Hills, 8 km southeast: 1,528 kWh per kW, 72 more than Shavano Park.
  • Balcones Heights, 10 km south: 1,499 kWh per kW, 43 more than Shavano Park.
  • Leon Valley, 10 km southwest: 1,497 kWh per kW, 41 more than Shavano Park.
  • Helotes, 12 km west: 1,514 kWh per kW, 58 more than Shavano Park.
  • Grey Forest, 12 km west: 1,515 kWh per kW, 59 more than Shavano Park.
  • San Antonio, 14 km south: 1,505 kWh per kW, 49 more than Shavano Park.
  • Olmos Park, 14 km southeast: 1,522 kWh per kW, 66 more than Shavano Park.

Against San Antonio

The nearest of the six largest modeled places is San Antonio, 14 km to the south, at 1,505 kWh per kW. Shavano Park models 49 kWh per kW (3.3%) below it. At 0.12 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 2.2 km), so station distance does little to explain the gap, and the weather record does the rest.

The second-nearest large place is Austin, 112 km northeast, where the same model gives 1,483 kWh per kW, so Shavano Park runs 27 below that figure. Against the Texas median place month by month, Shavano Park runs at least 2% higher in December. It runs at least 2% lower in February, March, April, May, June, July, September, October, November.

Electricity in Bexar CountyEIA-861

Electricity prices nearby

Providers listed in the county

They are the largest bundled providers 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. Priced at the first provider's average, the modeled 1,456 kWh would come to $181 per kW a year, plain multiplication and not a savings estimate.

Modeled estimateruns in your browser

Size the array, see the kWh.

Scale the Shavano Park 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 $224 per kW a year as plain multiplication.

Modeled estimate

Modeled output, kWh a year

8,736 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 655926

Month by month, per kW.

Modeled AC output in Shavano Park, Texas, kWh per kW DC, typical weather year
MonthkWh per kW
January102.4
February93.5
March109.5
April129.7
May135.3
June139.1
July148.7
August150.6
September128.3
October121.3
November98.9
December98.9
Year1,456

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 29.58, -98.56 (Shavano Park, population 3,807). Weather: typical-year data from station 655926, 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.