Schertz, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Schertz.
The PVWatts model puts a generic roof array in Schertz at 1,502 kWh a year for each kW of panels, using typical-year weather from a station 1.5 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 Schertz climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 152, weakest 95: a ratio of 1.6.
How Schertz comparesderived from the figures above
Where Schertz sits.
Schertz ranks 105th of 157 Texas places modeled here, at the 34th percentile. Its 1,502 kWh per kW is below the Texas median of 1,518. 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, 29.6% of the year arrives in June, July and August, more than the 29.4% of the median place.
Closest modeled neighbors
- Cibolo, 3 km east: 1,496 kWh per kW, 6 less than Schertz.
- Universal City, 6 km west: 1,516 kWh per kW, 14 more than Schertz.
- Converse, 7 km southwest: 1,511 kWh per kW, 9 more than Schertz.
- New Braunfels, 20 km northeast: 1,498 kWh per kW, 4 less than Schertz.
- Seguin, 27 km east: 1,498 kWh per kW, 4 less than Schertz.
- San Antonio, 28 km southwest: 1,505 kWh per kW, 3 more than Schertz.
- San Marcos, 46 km northeast: 1,507 kWh per kW, 5 more than Schertz.
- Boerne, 52 km northwest: 1,529 kWh per kW, 27 more than Schertz.
- Kyle, 60 km northeast: 1,493 kWh per kW, 9 less than Schertz.
Against San Antonio
The nearest of the six largest modeled places is San Antonio, 28 km to the southwest, at 1,505 kWh per kW. Schertz models 3 kWh per kW (0.2%) 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, 95 km northeast, where the same model gives 1,483 kWh per kW, so Schertz runs 19 above that figure. Against the Texas median place month by month, Schertz runs at least 2% higher in March, November. It runs at least 2% lower in February, April, May, September.
Electricity in Bexar County, Comal County, Guadalupe CountyEIA-861
Electricity prices nearby
Schertz is mainly served by Guadalupe Valley Elec Coop Inc, which sets its own rates. Parts of Schertz may be served by other utilities listed below; check your bill. Its 2025 residential average was 11.83¢ per kWh, which would put the modeled 1,502 kWh at $178 per kW a year, plain multiplication and not a savings estimate.
Other providers 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 serve other parts of the county. 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 Schertz 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 15.47¢ per kWh. At that rate the modeled output is worth $232 per kW a year as plain multiplication.
PVWatts v8station 663926
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 101.4 |
| February | 94.6 |
| March | 131.4 |
| April | 131.7 |
| May | 136.2 |
| June | 143.4 |
| July | 151.5 |
| August | 149.8 |
| September | 129.0 |
| October | 126.3 |
| November | 111.0 |
| December | 95.9 |
| Year | 1,502 |
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 29.56, -98.25 (Schertz, population 44,428). Weather: typical-year data from station 663926, 1.5 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.
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.