China Grove, TXLocal --:--Sun now --Daylight today --
Sun on a roof in China Grove.
The PVWatts model puts a generic roof array in China Grove at 1,526 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 China Grove climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 150, weakest 96: a ratio of 1.57.
How China Grove comparesderived from the figures above
Where China Grove sits.
China Grove ranks 505th of 1220 Texas places modeled here, at the 59th percentile. Its 1,526 kWh per kW is above the Texas median of 1,515. The strongest months are July, August, June and the weakest are December, February, January; output peaks in July and bottoms out in December. In all, 29.2% of the year arrives in June, July and August, less than the 29.3% of the median place.
Closest modeled neighbors
- Kirby, 9 km northwest: 1,495 kWh per kW, 31 less than China Grove.
- Windcrest, 14 km north: 1,510 kWh per kW, 16 less than China Grove.
- Terrell Hills, 14 km northwest: 1,509 kWh per kW, 17 less than China Grove.
- St. Hedwig, 14 km east: 1,488 kWh per kW, 38 less than China Grove.
- Converse, 14 km north: 1,511 kWh per kW, 15 less than China Grove.
- Alamo Heights, 15 km northwest: 1,509 kWh per kW, 17 less than China Grove.
- Elmendorf, 16 km south: 1,518 kWh per kW, 8 less than China Grove.
- Olmos Park, 16 km northwest: 1,522 kWh per kW, 4 less than China Grove.
- Universal City, 18 km north: 1,516 kWh per kW, 10 less than China Grove.
Against San Antonio
The nearest of the six largest modeled places is San Antonio, 18 km to the northwest, at 1,505 kWh per kW. China Grove models 21 kWh per kW (1.4%) above it. At 0.07 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 (2.4 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, 117 km northeast, where the same model gives 1,483 kWh per kW, so China Grove runs 43 above that figure. Against the Texas median place month by month, China Grove runs at least 2% higher in March, October, November. It runs at least 2% lower in February, May.
Electricity in Bexar CountyEIA-861
Electricity prices nearby
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.
- Guadalupe Valley Elec Coop Inc: 11.83¢ per kWh, a bundled average, 95,358 residential customers across 13 counties.
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 1,526 kWh would come to $189 per kW a year, plain multiplication and not a savings estimate.
Modeled estimateruns in your browser
Size the array, see the kWh.
Scale the China Grove 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 $235 per kW a year as plain multiplication.
PVWatts v8station 661833
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 101.5 |
| February | 95.9 |
| March | 134.1 |
| April | 138.3 |
| May | 137.5 |
| June | 144.8 |
| July | 150.4 |
| August | 149.7 |
| September | 134.4 |
| October | 131.0 |
| November | 112.8 |
| December | 95.8 |
| Year | 1,526 |
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 29.39, -98.35 (China Grove, population 1,138). Weather: typical-year data from station 661833, 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.
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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.