West Lake Hills, TXLocal --:--Sun now --Daylight today --
Sun on a roof in West Lake Hills.
The PVWatts model puts a generic roof array in West Lake Hills at 1,481 kWh a year for each kW of panels, using typical-year weather from a station 1.0 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 West Lake Hills climbs and falls, and the modeled output follows it.
kWh per kW DC, modeled by PVWatts. Best month 152, weakest 90: a ratio of 1.69.
How West Lake Hills comparesderived from the figures above
Where West Lake Hills sits.
West Lake Hills ranks 887th of 1220 Texas places modeled here, at the 27th percentile. Its 1,481 kWh per kW is below the Texas median of 1,515. The strongest months are August, July, May and the weakest are December, February, November; output peaks in August and bottoms out in December. 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
- Rollingwood, 3 km southeast: 1,490 kWh per kW, 9 more than West Lake Hills.
- Austin, 6 km east: 1,483 kWh per kW, 2 more than West Lake Hills.
- Sunset Valley, 7 km south: 1,488 kWh per kW, 7 more than West Lake Hills.
- Bee Cave, 15 km west: 1,485 kWh per kW, 4 more than West Lake Hills.
- San Leanna, 17 km south: 1,483 kWh per kW, 2 more than West Lake Hills.
- Bear Creek, 17 km southwest: 1,519 kWh per kW, 38 more than West Lake Hills.
- Lakeway, 19 km west: 1,500 kWh per kW, 19 more than West Lake Hills.
- Hays, 20 km south: 1,488 kWh per kW, 7 more than West Lake Hills.
- Volente, 20 km northwest: 1,501 kWh per kW, 20 more than West Lake Hills.
Against Austin
The nearest of the six largest modeled places is Austin, 6 km to the east, at 1,483 kWh per kW. West Lake Hills models 2 kWh per kW (0.1%) below 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 San Antonio, 115 km southwest, where the same model gives 1,505 kWh per kW, so West Lake Hills runs 24 below that figure. It runs at least 2% lower in February, April, June, November, December.
Electricity in Travis CountyEIA-861
Electricity prices nearby
EIA lists Oncor Electric Delivery in this county. Where West Lake Hills is on Oncor Electric Delivery's lines, homes buy energy from a retail electricity provider and the price depends on the plan. Parts of West Lake Hills 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 1,481 kWh at $227 per kW a year, plain multiplication and not a savings estimate or an offer.
Also listed in the county
- Austin Energy: 13.14¢ per kWh, a bundled average, 522,446 residential customers across 2 counties.
- Pedernales Electric Coop, Inc: 12.75¢ per kWh, a bundled average, 420,753 residential customers across 24 counties.
- Bluebonnet Electric Coop, Inc: 11.59¢ per kWh, a bundled average, 119,030 residential customers across 14 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 West Lake Hills. 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 West Lake Hills 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 $228 per kW a year as plain multiplication.
PVWatts v8station 676004
Month by month, per kW.
| Month | kWh per kW |
|---|---|
| January | 103.0 |
| February | 94.1 |
| March | 125.9 |
| April | 132.9 |
| May | 142.0 |
| June | 140.2 |
| July | 150.4 |
| August | 151.7 |
| September | 131.6 |
| October | 122.8 |
| November | 97.0 |
| December | 89.7 |
| Year | 1,481 |
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 30.29, -97.81 (West Lake Hills, population 3,208). Weather: typical-year data from station 676004, 1.0 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.
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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.