Sachse, TXLocal --:--Sun now --Daylight today --
Sun on a roof in Sachse.
The PVWatts model puts a generic roof array in Sachse at 1,507 kWh a year for each kW of panels, using typical-year weather from a station 0.0 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 Sachse climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 152, weakest 95: a ratio of 1.61.
How Sachse comparesderived from the figures above
Where Sachse sits.
Sachse ranks 96th of 157 Texas places modeled here, at the 39th percentile. Its 1,507 kWh per kW is below the Texas median of 1,518. The strongest months are August, June, July and the weakest are November, February, December; output peaks in August and bottoms out in November. In all, 29.6% of the year arrives in June, July and August, more than the 29.4% of the median place.
Closest modeled neighbors
- Murphy, 6 km northwest: 1,506 kWh per kW, 1 less than Sachse.
- Rowlett, 6 km southeast: 1,517 kWh per kW, 10 more than Sachse.
- Wylie, 8 km northeast: 1,534 kWh per kW, 27 more than Sachse.
- Garland, 8 km southwest: 1,522 kWh per kW, 15 more than Sachse.
- Richardson, 12 km west: 1,540 kWh per kW, 33 more than Sachse.
- Rockwall, 14 km southeast: 1,524 kWh per kW, 17 more than Sachse.
- Allen, 18 km northwest: 1,530 kWh per kW, 23 more than Sachse.
- Plano, 18 km northwest: 1,527 kWh per kW, 20 more than Sachse.
- Fate, 19 km east: 1,497 kWh per kW, 10 less than Sachse.
Against Dallas
The nearest of the six largest modeled places is Dallas, 27 km to the southwest, at 1,500 kWh per kW. Sachse models 7 kWh per kW (0.5%) 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 Dallas's.
The second-nearest large place is Fort Worth, 75 km west, where the same model gives 1,535 kWh per kW, so Sachse runs 28 below that figure. Against the Texas median place month by month, Sachse runs at least 2% higher in January, June, September, December. It runs at least 2% lower in March, July, November.
Electricity in Dallas County, Collin CountyEIA-861
Electricity prices nearby
EIA lists Oncor Electric Delivery and Texas-New Mexico Power in this county. Where Sachse is on Oncor Electric Delivery and Texas-New Mexico Power's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of Sachse 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 1,507 kWh at $231 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Denton County Elec Coop, Inc: 13.18¢ per kWh, a bundled average, 310,805 residential customers across 6 counties.
- Grayson-Collin Elec Coop, Inc: 17.04¢ per kWh, a bundled average, 97,950 residential customers across 4 counties.
- Farmers Electric Coop, Inc: 11.95¢ per kWh, a bundled average, 88,221 residential customers across 12 counties.
- Oncor Electric Delivery Company LLC: 5.64¢ per kWh, delivery charges only, before the retail energy price, 3,545,814 residential customers across 99 counties.
These utilities serve other parts of the county, which can include parts of Sachse. 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 Sachse 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 $233 per kW a year as plain multiplication.
PVWatts v8station 706939
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 106.3 |
| February | 99.2 |
| March | 122.8 |
| April | 135.6 |
| May | 140.3 |
| June | 150.4 |
| July | 143.1 |
| August | 152.1 |
| September | 139.7 |
| October | 122.1 |
| November | 94.6 |
| December | 100.3 |
| Year | 1,507 |
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 32.97, -96.58 (Sachse, population 33,008). Weather: typical-year data from station 706939, 0.0 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.
Email updatesdouble opt-in
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.