Electricity rates in Lewisville, TX
7 in 10 Texans are overpaying for electricity. What should your rate actually be?
Last updated June 2026 - Base Power Team
Quick answer
Electricity rates in Lewisville, Texas
- Typical Lewisville all-in electricity rate: 18.1¢/kWh, higher than the Texas average of 16.39¢/kWh.
- Average Lewisville home electricity usage: 1,400–1,500 kWh/month in summer, well above the Texas average of 1,096 kWh.
- Typical Lewisville monthly bill: $198, compared with about $155 on Base's flat 8¢/kWh energy charge.
How do electricity charges in Lewisville work?
Lewisville is a power-to-choose market, so you pick your provider and their energy rate. Your bill shows two things - your energy charge, and your delivery charge. You shop for your energy charge by picking your provider. Oncor sets your delivery fee, and it stays identical regardless of which provider you select.
What's the cheapest electricity rate in Lewisville?
The cheapest plan depends on your usage. When comparing plans, look at your all-in rate (energy plus delivery), as it decides your bill. Most REPs' headline rates look cheaper because they apply only in a small usage band. They may also depend on a bill credit you get only at the right kWh level.
Base has a flat 8¢/kWh energy charge. No extra fees. After covering Oncor's pass-through delivery fees, your total, all-in electricity rate comes to roughly 14.1¢/kWh. At typical use, that is about $43 below the Lewisville average.
What are the best electricity rates in Lewisville, TX?
Flat & clear | Typical Lewisville REP | Texas average | |
|---|---|---|---|
| Energy charge | 8¢ per kWh | 10–14¢ per kWh | 10.27¢ per kWh |
| Oncor delivery | 6.12¢ per kWh | 6.12¢ per kWh | 6.12¢ per kWh |
| All-in rate | 14.1¢ per kWh | 16.12–20.12¢ per kWh | 16.39¢ per kWh |
| Avg. monthly bill | $155 per month | $177–$221 per month | $180 per month |
In Lewisville, you can only compare and choose the energy-charge portion. Oncor's 6.12¢/kWh delivery fee is regulator-approved and the same across every plan. So the all-in rate is what actually separates one provider from another.
A typical Lewisville REP lands at 16.12–20.12¢/kWh all-in, and the Texas average is 16.39¢; Base is 14.1¢ - a flat 8¢ energy charge plus that same pass-through delivery. At the Texas-average usage of 1,096 kWh each month, that's about $177–$221 on a standard plan, compared with roughly $155 using Base.
Base's energy charge is its advertised rate; exact, usage-based pricing is in the Electricity Facts Label. See your exact rate →
What's the difference between providers in Lewisville?
Each dot is a Texas retail electricity provider that serves Lewisville. Left to right shows how many homes the provider serves, drawn from EIA data. Top to bottom shows that provider's modeled all-in rate, based on published plans in our comparison data set. The largest, most-advertised names tend to be more expensive, and many households aren't aware that they're missing out on savings.
The biggest, most-advertised providers in Lewisville are often the priciest. Tap one below to see what you could save each month by switching to Base.
Click on any provider to compare rates with Base.
Typical Lewisville REP
18.1¢
all-in rate
14.1¢
all-in rate
save $43 monthly
Based on the Texas-average 1,096 kWh a month.
See how much you could save with Base Power.
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What if I don't know how my Lewisville electricity bill works?
We'll break it down for you.
What's Lewisville's grid like?
Lewisville's quirk is its utilities: it's a mixed TDU city where one side of a street can be served by Oncor and the other by Texas-New Mexico Power (TNMP). Fittingly, TNMP is headquartered right in Lewisville. Both utilities operate in deregulated territory, so retail choice exists across the city — only the delivery-charge math changes.
Beyond the utility patchwork, Lewisville is a growing Denton County city of about 136,000 anchored by Lake Lewisville, the largest reservoir in DFW, and a revitalized Old Town entertainment district that's adding new housing. The new residential construction is a natural fit for solar and battery.
Why are my Lewisville bills so high in summer?
Lewisville is in Denton County under the North Texas heat — about 20 days a year over 100°F on average — so summer air conditioning is the main driver of electricity bills, the same as the rest of the DFW area regardless of which delivery utility serves your street.
Air conditioning does most of the work. For the average homeowner, summer usage climbs to roughly 1,400–1,500 kWh a month, and bills can run about 30% higher than in spring.
What can you control?
Your Lewisville electricity bill isn't one charge – it's three separate businesses stacked on top of each other. Some, like your delivery charge, are identical no matter who you sign up with. But you're free to choose your retail provider – and many Texans don't realize that until they've lost savings by staying with their default provider.
Texas splits the power industry into three parts. Generation is the power plants and solar farms that make your electricity. Retail is the provider that buys that electricity and sells it to you. Delivery is the company that owns the poles and wires that carry it into your home.
Understanding which is which is the difference between chasing a headline rate and actually lowering your bill. The diagram below breaks down where each dollar goes – and shows the one area you can change.
Power generation
Power plants, wind farms, and solar panels across Texas generate the electricity and feed it onto the ERCOT grid. These generators sell electricity into a marketplace, and your retail provider bids on portions of that supply. This decides the base cost of power long before it reaches you.
Your retail provider
You choose this
Your retail provider buys that power, packages it into a plan, and sets the rate you pay. It's the one piece you get to choose – and the biggest lever on your bill.
Delivery (Oncor)
Your local utility owns the poles, wires, transformers, and meter that carry power the last mile to your home. All Lewisville homes pay the same delivery rates. This means there's nothing to shop around for here.
Your home
Where the power finally lands – keeping your lights on, AC running, EV charging, everything plugged in. How much you use, and when, shapes your monthly bill after you've picked the right provider.
In Lewisville, Oncor handles delivery, and those charges are the same no matter who you buy from.
When comparing providers, focus on all-in rates.
Well, how do I find the best provider in Lewisville?
It depends on your home, your usage, and your plan. But many providers aren't transparent, so a lot of Lewisville homeowners pay more than they expect.
Many plans advertise a low rate. That rate only kicks in as a "bill credit" when you use a certain amount of energy. Miss the threshold and the actual rate jumps, costing you hundreds a year.
If you know your monthly usage, you can compare the all-in cost of your current provider against others in Lewisville. Doing that by hand is tough, so we built a bill comparison tool. Upload a bill, tell us your provider, or share your current rate, and we can estimate what you'd save by switching. It takes less than a minute.
We believe energy should be affordable
Most power companies make more money when your bill goes up. Base doesn't. We support Texas communities with lower rates and a more resilient grid. We keep your energy bill low and your charges predictable. No tricks, no surprises.
Join 30,000+ Texans in accessing a flat, transparent rate.
- One flat 8¢ per kWh energy charge
- No bill-credit minimums and no usage fees
- A rate below the market average, guaranteed – even at renewal
Keeping the lights on should be affordable.
Takes about two minutes.
FAQs
Find your city
We break down electricity rates for cities across Texas. Pick yours to see how your local utility, the average bill, and Base's flat 8¢/kWh rate work where you live.
Sources
- U.S. EIA — Electric Power Monthly, Table 5.6.A (Mar 2026)
- U.S. EIA — average residential electricity use & bills
- Power to Choose — the official PUCT marketplace
- ElectricRates — Lewisville Oncor/TNMP
- TNMP — about us (headquartered in Lewisville)
Plan documents: Electricity Facts Label (EFL) · Terms of Service & Your Rights as a Customer. Products and pricing are offered to qualified customers in Texas only.