Round Top, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Round Top.
The PVWatts model puts a generic roof array in Round Top at 1,492 kWh a year for each kW of panels, using typical-year weather from a station 1.1 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 Round Top climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 152, weakest 91: a ratio of 1.66.
How Round Top comparesderived from the figures above
Where Round Top sits.
Round Top ranks 807th of 1220 Texas places modeled here, at the 34th percentile. Its 1,492 kWh per kW is below the Texas median of 1,515. The strongest months are July, August, May and the weakest are December, February, January; output peaks in July and bottoms out in December. In all, 29.4% of the year arrives in June, July and August, more than the 29.3% of the median place.
Closest modeled neighbors
- Carmine, 10 km north: 1,483 kWh per kW, 9 less than Round Top.
- Fayetteville, 17 km south: 1,492 kWh per kW, 0 the same as Round Top.
- Burton, 17 km northeast: 1,486 kWh per kW, 6 less than Round Top.
- Industry, 22 km southeast: 1,459 kWh per kW, 33 less than Round Top.
- La Grange, 24 km southwest: 1,487 kWh per kW, 5 less than Round Top.
- Ellinger, 24 km south: 1,488 kWh per kW, 4 less than Round Top.
- Giddings, 26 km northwest: 1,497 kWh per kW, 5 more than Round Top.
- Brenham, 31 km east: 1,469 kWh per kW, 23 less than Round Top.
- Somerville, 36 km northeast: 1,470 kWh per kW, 22 less than Round Top.
Against Austin
The nearest of the six largest modeled places is Austin, 104 km to the west, at 1,483 kWh per kW. Round Top models 9 kWh per kW (0.6%) 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 Austin's.
The second-nearest large place is Houston, 130 km east, where the same model gives 1,422 kWh per kW, so Round Top runs 70 above that figure. Against the Texas median place month by month, Round Top runs at least 2% higher in October. It runs at least 2% lower in January, February, March, June, August, December.
Electricity in Fayette CountyEIA-861
Electricity prices nearby
Providers listed in the county
- Bluebonnet Electric Coop, Inc: 11.59¢ per kWh, a bundled average, 119,030 residential customers across 14 counties.
- Guadalupe Valley Elec Coop Inc: 11.83¢ per kWh, a bundled average, 95,358 residential customers across 13 counties.
- San Bernard Electric Coop, Inc: 14.11¢ per kWh, a bundled average, 32,557 residential customers across 8 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 1,492 kWh would come to $173 per kW a year, plain multiplication and not a savings estimate.
Modeled estimateruns in your browser
Size the array, see the kWh.
Scale the Round Top 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 $230 per kW a year as plain multiplication.
PVWatts v8station 704598
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 98.9 |
| February | 98.3 |
| March | 122.0 |
| April | 133.9 |
| May | 142.3 |
| June | 142.3 |
| July | 151.5 |
| August | 145.2 |
| September | 130.3 |
| October | 128.9 |
| November | 107.2 |
| December | 91.0 |
| Year | 1,492 |
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 30.06, -96.7 (Round Top, population 95). Weather: typical-year data from station 704598, 1.1 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.