Marshall, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Marshall.
The PVWatts model puts a generic roof array in Marshall at 1,385 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 Marshall climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 142, weakest 82: a ratio of 1.73.
How Marshall comparesderived from the figures above
Where Marshall sits.
Marshall ranks 156th of 157 Texas places modeled here, at the 1st percentile. Its 1,385 kWh per kW is below the Texas median of 1,518. 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, 29.8% of the year arrives in June, July and August, more than the 29.4% of the median place.
Closest modeled neighbors
- Longview, 39 km west: 1,451 kWh per kW, 66 more than Marshall.
- Tyler, 93 km west: 1,463 kWh per kW, 78 more than Marshall.
- Texarkana, 104 km north: 1,425 kWh per kW, 40 more than Marshall.
- Nacogdoches, 107 km south: 1,401 kWh per kW, 16 more than Marshall.
- Lufkin, 140 km south: 1,362 kWh per kW, 23 less than Marshall.
- Palestine, 151 km southwest: 1,469 kWh per kW, 84 more than Marshall.
- Paris, 168 km northwest: 1,498 kWh per kW, 113 more than Marshall.
- Greenville, 176 km west: 1,466 kWh per kW, 81 more than Marshall.
- Terrell, 184 km west: 1,479 kWh per kW, 94 more than Marshall.
Against Dallas
The nearest of the six largest modeled places is Dallas, 228 km to the west, at 1,500 kWh per kW. Marshall models 115 kWh per kW (7.7%) below it. At 0.25 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 (1.5 km and 2.4 km), so station distance does little to explain the gap, and the weather record does the rest.
The second-nearest large place is Fort Worth, 282 km west, where the same model gives 1,535 kWh per kW, so Marshall runs 150 below that figure. It runs at least 2% lower in January, February, March, April, May, June, July, August, September, October, November, December.
Electricity in Harrison CountyEIA-861
Electricity prices nearby
Providers listed in the county
- Southwestern Electric Power Co: 12.6¢ per kWh, a bundled average, 157,119 residential customers across 25 counties.
- Upshur Rural Elec Coop Corp: 12.71¢ per kWh, a bundled average, 44,971 residential customers across 10 counties.
- Panola-Harrison Elec Coop, Inc: 10.66¢ per kWh, a bundled average, 9,432 residential customers across 2 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 1,385 kWh would come to $175 per kW a year, plain multiplication and not a savings estimate.
Modeled estimateruns in your browser
Size the array, see the kWh.
Scale the Marshall 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 $214 per kW a year as plain multiplication.
PVWatts v8station 756243
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 96.2 |
| February | 90.3 |
| March | 110.9 |
| April | 125.9 |
| May | 133.5 |
| June | 133.4 |
| July | 141.8 |
| August | 136.8 |
| September | 121.2 |
| October | 115.2 |
| November | 97.1 |
| December | 82.2 |
| Year | 1,385 |
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 32.54, -94.35 (Marshall, population 24,263). Weather: typical-year data from station 756243, 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.