Oncor (TDU) Service Area · Denton County
Home Solar + Battery Storage in Lewisville, TX
Make your own power, store it in battery backup, and keep your home running through grid outages and Texas summer heat. Lewisville is served by Oncor (TDU) — homes here pay an estimated $185/mo today. VoltSol connects you with a licensed local installer who handles your quote, contract, and installation.
* Electricity bill figures are regional estimates only, not guarantees.
Home Solar + Battery Storage in Lewisville — Local Estimates
These are illustrative regional estimates — not guarantees. Your actual savings depend on usage, roof orientation, shading, system size, and future utility rate changes.
- Avg monthly bill*
- $185
- Typical system size*
- 8 kW
- Peak sun hrs/day*
- 5.3
Why Solar + Battery Storage in Lewisville?
- ●High sun exposure: Lewisville averages an estimated 5.3 peak sun hours per day — strong solar production potential year-round.
- ●High local utility rates: Oncor (TDU) / Denton Municipal Electric (municipal) customers in Lewisville pay an estimated $0.14/kWh, making solar self-consumption economics strong. Denton County has mixed utility service. Most areas are in the deregulated ERCOT market served by Oncor (TDU) -- residents choose their REP which sets solar buyback rates. The City of Denton has Denton Municipal Electric (DME), a municipal utility that sets its own rates and solar policies. Illustrative residential rate range: $0.12-$0.16/kWh depending on utility and REP/plan choice.
- ●Deregulated market choice: across most of Texas you pick your Retail Electric Provider, and solar buyback rates vary widely by plan — so the reliable value is in storing and using your own power. Ask your local installer about current federal and state incentives; consult a tax professional for your situation.
- ●Home value: Studies suggest homes with owned solar systems sell for more than comparable homes without — though results vary by market.
When the grid goes down, your lights stay on
Winter Storm Uri and hurricane-season outages have left Lewisville-area homes without power for hours — sometimes days. A solar + battery system keeps your fridge, lights, and Wi-Fi running while the grid is down. No generator, no fuel runs, no scramble.
Local Details for Lewisville
Utility Rate
Oncor (TDU) / Denton Municipal Electric (municipal): Estimated $0.14/kWh residential rate. Denton County has mixed utility service. Most areas are in the deregulated ERCOT market served by Oncor (TDU) -- residents choose their REP which sets solar buyback rates. The City of Denton has Denton Municipal Electric (DME), a municipal utility that sets its own rates and solar policies. Illustrative residential rate range: $0.12-$0.16/kWh depending on utility and REP/plan choice.
Permit Office
City of Denton Development Services (City of Denton (other cities and unincorporated areas have separate processes)). Typical turnaround: 2-6 weeks, varies by jurisdiction. Denton, Lewisville, Flower Mound, and other cities in Denton County each have their own building departments. Permit timelines vary -- confirm with your local jurisdiction. Your installer manages the application.
Climate Zone
Hot-humid North Texas / Hail Alley: Hot, humid summers with high cooling demand. Denton County is in "Hail Alley" -- severe spring/summer hailstorms require hail-rated solar equipment. Winter storms and summer heat events make battery backup valuable for grid resilience.
Frequently Asked Questions — Lewisville
Do I need a permit for solar in Lewisville?
Yes. The City of Lewisville Building Inspection Division handles solar permits. Typical turnaround is 2-6 weeks. Your contractor manages the permit process.
Is residential solar worth it in Lewisville?
Yes. Lewisville's hot summers create high cooling costs. Solar offsets air conditioning demand, and battery backup provides storm resilience. You choose your REP -- shop for competitive solar export rates. Hail-rated equipment is required.
How does solar perform in Lewisville's climate?
Lewisville averages an estimated 5.3 peak sun hours per day. Solar production is strong, with peak output during summer. Hail Alley location requires hail-rated panels.
Tax credit, exemption, and incentive information is general and subject to change. Consult a licensed tax professional and your county appraisal district (or equivalent local authority) for guidance specific to your situation.
How It Works
- 1Submit your info: Fill out the quick form — takes under 2 minutes.
- 2Get matched: We share your request with one licensed solar contractor serving Lewisville.
- 3Free consultation: Your contractor contacts you to assess your home and provide a no-obligation quote.
- 4Go solar: If the numbers work, move forward on your timeline — no pressure.