Iola, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Iola.
The PVWatts model puts a generic roof array in Iola at 1,464 kWh a year for each kW of panels, using typical-year weather from a station 1.9 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 Iola climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 148, weakest 89: a ratio of 1.67.
How Iola comparesderived from the figures above
Where Iola sits.
Iola ranks 961st of 1220 Texas places modeled here, at the 21st percentile. Its 1,464 kWh per kW is below the Texas median of 1,515. The strongest months are August, July, May and the weakest are February, December, January; output peaks in August and bottoms out in February. In all, 29.9% of the year arrives in June, July and August, more than the 29.3% of the median place.
Closest modeled neighbors
- Bedias, 13 km east: 1,450 kWh per kW, 14 less than Iola.
- Kurten, 19 km west: 1,473 kWh per kW, 9 more than Iola.
- Wixon Valley, 23 km west: 1,454 kWh per kW, 10 less than Iola.
- Madisonville, 26 km northeast: 1,433 kWh per kW, 31 less than Iola.
- College Station, 29 km southwest: 1,421 kWh per kW, 43 less than Iola.
- Normangee, 29 km north: 1,474 kWh per kW, 10 more than Iola.
- Bryan, 31 km west: 1,456 kWh per kW, 8 less than Iola.
- Anderson, 32 km south: 1,433 kWh per kW, 31 less than Iola.
- Midway, 42 km northeast: 1,446 kWh per kW, 18 less than Iola.
Against Houston
The nearest of the six largest modeled places is Houston, 128 km to the southeast, at 1,422 kWh per kW. Iola models 42 kWh per kW (3.0%) above it. Iola lies 0.98 degrees of latitude north of Houston, which on sun angle alone would point the other way, so clouds, haze and the weather station's record carry the difference. The two weather stations sit a similar distance from their points (1.9 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 Austin, 168 km west, where the same model gives 1,483 kWh per kW, so Iola runs 19 below that figure. It runs at least 2% lower in January, February, March, April, June, July, September, October, December.
Electricity in Grimes CountyEIA-861
Electricity prices nearby
Providers listed in the county
- Entergy Texas Inc.: 13.89¢ per kWh, a bundled average, 469,094 residential customers across 27 counties.
- Mid-South Electric Coop Assn: 15.37¢ per kWh, a bundled average, 37,251 residential customers across 6 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 1,464 kWh would come to $203 per kW a year, plain multiplication and not a savings estimate.
Modeled estimateruns in your browser
Size the array, see the kWh.
Scale the Iola 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 $225 per kW a year as plain multiplication.
PVWatts v8station 719195
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 95.8 |
| February | 88.7 |
| March | 114.1 |
| April | 132.3 |
| May | 144.6 |
| June | 142.4 |
| July | 146.9 |
| August | 148.2 |
| September | 129.2 |
| October | 122.5 |
| November | 107.7 |
| December | 91.9 |
| Year | 1,464 |
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 30.77, -96.08 (Iola, population 347). Weather: typical-year data from station 719195, 1.9 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.