Seguin, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Seguin.
The PVWatts model puts a generic roof array in Seguin at 1,498 kWh a year for each kW of panels, using typical-year weather from a station 2.4 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 Seguin climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 153, weakest 94: a ratio of 1.63.
How Seguin comparesderived from the figures above
Where Seguin sits.
Seguin ranks 108th of 157 Texas places modeled here, at the 32nd percentile. Its 1,498 kWh per kW is below the Texas median of 1,518. The strongest months are July, August, May and the weakest are February, December, January; output peaks in July and bottoms out in February. In all, 29.1% of the year arrives in June, July and August, less than the 29.4% of the median place.
Closest modeled neighbors
- New Braunfels, 19 km northwest: 1,498 kWh per kW, 0 the same as Seguin.
- Cibolo, 24 km west: 1,496 kWh per kW, 2 less than Seguin.
- Schertz, 27 km west: 1,502 kWh per kW, 4 more than Seguin.
- San Marcos, 31 km north: 1,507 kWh per kW, 9 more than Seguin.
- Converse, 33 km west: 1,511 kWh per kW, 13 more than Seguin.
- Universal City, 33 km west: 1,516 kWh per kW, 18 more than Seguin.
- Kyle, 45 km north: 1,493 kWh per kW, 5 less than Seguin.
- San Antonio, 55 km west: 1,505 kWh per kW, 7 more than Seguin.
- Boerne, 76 km west: 1,529 kWh per kW, 31 more than Seguin.
Against San Antonio
The nearest of the six largest modeled places is San Antonio, 55 km to the west, at 1,505 kWh per kW. Seguin models 7 kWh per kW (0.5%) 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, 82 km north, where the same model gives 1,483 kWh per kW, so Seguin runs 15 above that figure. Against the Texas median place month by month, Seguin runs at least 2% higher in March, November. It runs at least 2% lower in February, April, June, August, September.
Electricity in Guadalupe CountyEIA-861
Electricity prices nearby
Seguin is served by its own municipal utility, City of Seguin. Municipal utilities in Texas generally sit outside retail choice, so homes in the city buy from the city utility. Its 2025 residential average was 11.06¢ per kWh, which would put the modeled 1,498 kWh at $166 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 areas outside the city utility. 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 Seguin 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 671665
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 102.8 |
| February | 94.1 |
| March | 128.0 |
| April | 129.9 |
| May | 141.5 |
| June | 139.8 |
| July | 153.3 |
| August | 143.3 |
| September | 130.0 |
| October | 126.2 |
| November | 112.7 |
| December | 96.7 |
| Year | 1,498 |
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 29.59, -97.97 (Seguin, population 38,789). Weather: typical-year data from station 671665, 2.4 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.