Calvert, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Calvert.
The PVWatts model puts a generic roof array in Calvert at 1,497 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 Calvert climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 149, weakest 91: a ratio of 1.64.
How Calvert comparesderived from the figures above
Where Calvert sits.
Calvert ranks 772nd of 1220 Texas places modeled here, at the 37th percentile. Its 1,497 kWh per kW is below the Texas median of 1,515. The strongest months are August, July, June and the weakest are December, February, January; output peaks in August and bottoms out in December. In all, 29.8% of the year arrives in June, July and August, more than the 29.3% of the median place.
Closest modeled neighbors
- Hearne, 13 km southeast: 1,484 kWh per kW, 13 less than Calvert.
- Franklin, 18 km east: 1,482 kWh per kW, 15 less than Calvert.
- Bremond, 21 km north: 1,501 kWh per kW, 4 more than Calvert.
- Rosebud, 31 km west: 1,516 kWh per kW, 19 more than Calvert.
- Cameron, 32 km southwest: 1,516 kWh per kW, 19 more than Calvert.
- Milano, 35 km southwest: 1,487 kWh per kW, 10 less than Calvert.
- Kosse, 37 km north: 1,497 kWh per kW, 0 the same as Calvert.
- Wixon Valley, 41 km southeast: 1,454 kWh per kW, 43 less than Calvert.
- Marlin, 42 km northwest: 1,503 kWh per kW, 6 more than Calvert.
Against Austin
The nearest of the six largest modeled places is Austin, 128 km to the southwest, at 1,483 kWh per kW. Calvert models 14 kWh per kW (0.9%) 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, 181 km southeast, where the same model gives 1,422 kWh per kW, so Calvert runs 75 above that figure. Against the Texas median place month by month, Calvert runs at least 2% higher in April. It runs at least 2% lower in February, March, July, December.
Electricity in Robertson CountyEIA-861
Electricity prices nearby
EIA lists Texas-New Mexico Power in this county. Where Calvert is on Texas-New Mexico Power's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Calvert may instead be served by a co-op or utility listed below, which sets its own rates; check your bill. For scale only, the median 2025 average price across the 60 Texas retail providers on this site is 15.32¢ per kWh, which would put the modeled 1,497 kWh at $229 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Entergy Texas Inc.: 13.89¢ per kWh, a bundled average, 469,094 residential customers across 27 counties.
- City of Bryan: 10.89¢ per kWh, a bundled average, 62,535 residential customers across 3 counties.
- Navasota Valley Elec Coop, Inc: 16.26¢ per kWh, a bundled average, 19,861 residential customers across 9 counties.
- Texas-New Mexico Power Co: 7.09¢ per kWh, delivery charges only, before the retail energy price, 237,930 residential customers across 42 counties.
These utilities serve other parts of the county, which can include parts of Calvert. 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 Calvert 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 $231 per kW a year as plain multiplication.
PVWatts v8station 705249
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 100.3 |
| February | 94.9 |
| March | 116.9 |
| April | 139.1 |
| May | 144.1 |
| June | 148.0 |
| July | 148.5 |
| August | 149.3 |
| September | 131.2 |
| October | 127.1 |
| November | 106.4 |
| December | 91.1 |
| Year | 1,497 |
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 30.98, -96.67 (Calvert, population 991). Weather: typical-year data from station 705249, 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.
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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.