Texas electricity plans for EV charging
Plug in your household's usage and your driving, and see what each Texas electricity plan would really charge you — free-nights, free-weekends, time-of-use and EV-only plans, all from their published Electricity Facts Labels. 11 plans checked October 14, 2026.
| Plan | Monthly bill | EV charging | EV ¢/kWh | Cheap hours |
|---|
Bills include the plan's energy and base charges, Oncor/CenterPoint/AEP Texas Central delivery charges and listed credits, and exclude taxes and small state fees — the same way EFL average prices are calculated.
EV-only plans: check the price at your address
These plans make some or all EV charging free, but their prices are only shown for a specific address. Enter the energy charge from the plan's Electricity Facts Label and the calculator puts it into the same comparison. Until you do, it shows the highest energy charge at which the plan would still beat the cheapest plan above.
TXU Energy Free EV Nights
100% off energy charges for everything the home uses from 10 pm to 4:59 am, every night. Base charge, delivery charges and taxes still apply to all hours. Free hours: 10 pm–5 am. Needs: A provisioned smart meter and a single-family home. Source.
Enter the energy charge from the plan's EFL for your address.
Gexa Energy SavEV 12
A credit equal to the energy charge for home EV charging from 11 pm to 4:59 am. Delivery charges still apply. Free hours: 11 pm–5 am. Needs: A Level 2 charger, your EV connected to Gexa's telematics platform, and paperless billing. Source.
Enter the energy charge from the plan's EFL for your address.
Emporia Energy EV Charging Savings
EV charging from 10 pm to 5 am and from noon to 4 pm is billed at $0 for energy and for per-kWh delivery, for a flat $14.95 monthly EV fee. The rest of the home pays the plan's standard rate. Free hours: 10 pm–5 am, noon–4 pm. Needs: An Emporia Pro or Classic Level 2 charger connected in the Emporia app. Source.
Enter the energy charge from the plan's EFL for your address.
Reliant Free Charge Nights
A bill credit equal to the energy charges for charging your EV from 11 pm to 6 am, based on charging data GM sends to Reliant. Delivery charges, base charge and taxes are not credited. Free hours: 11 pm–6 am. Needs: A Chevrolet, Cadillac or GMC EV linked to OnStar and GM Energy's charging program. One car per account. Source.
Enter the energy charge from the plan's EFL for your address.
What the plans cost with a typical Texas EV
The tables below use one fixed household: 1,000 kWh a month without the car, plus 1,000 miles a month at 30 kWh per 100 miles with 10% charging loss (333 kWh a month from the wall) on a 7.2 kW Level 2 charger, and 32% of household use between 9 pm and 6 am. "Scheduled" means the car is set to charge in the cheapest hours each plan offers while it is parked at home (6 pm to 7 am on weekdays, all day on weekends).
Oncor Dallas-Fort Worth, Waco, Tyler, Midland-Odessa
With the default household below, Reliant Free Overnight 12 comes out cheapest at about $183 a month for the whole home, and charging the car adds $0 of that when it charges in the plan's cheapest hours ($88 if it starts charging the moment it is plugged in at 6 pm). The most expensive plan we checked here costs $57 a month more.
| Plan | Monthly bill | EV share, scheduled | EV share, plug in at 6 pm | EFL date |
|---|---|---|---|---|
| Reliant Free Overnight 12 Free nights | $183 | $0 | $88 | October 4, 2026 |
| Rhythm PowerShift 12 Time of use | $193 | $40 | $74 | July 21, 2026 |
| Rhythm Simply Select 36 Flat rate | $211 | $52 | $52 | August 10, 2026 |
| Reliant Truly Free Weekends 12 Free weekends | $240 | $51 | $64 | October 4, 2026 |
CenterPoint Houston and surrounding area
With the default household below, Reliant Free Overnight 12 comes out cheapest at about $181 a month for the whole home, and charging the car adds $0 of that when it charges in the plan's cheapest hours ($87 if it starts charging the moment it is plugged in at 6 pm). The most expensive plan we checked here costs $18 a month more.
| Plan | Monthly bill | EV share, scheduled | EV share, plug in at 6 pm | EFL date |
|---|---|---|---|---|
| Reliant Free Overnight 12 Free nights | $181 | $0 | $87 | September 30, 2026 |
| Rhythm PowerShift 12 Time of use | $182 | $37 | $70 | August 21, 2026 |
| Rhythm PowerShift EV 12 Time of use | $185 | $37 | $70 | July 17, 2026 |
| Rhythm Simply Select 12 Flat rate | $191 | $47 | $47 | August 28, 2026 |
| Reliant Truly Free Nights 100% Solar 12 Free nights | $199 | $0 | $104 | September 30, 2026 |
AEP Texas Central Corpus Christi, McAllen, Laredo, Victoria
With the default household below, Rhythm PowerShift Select 12 comes out cheapest at about $171 a month for the whole home, and charging the car adds $37 of that when it charges in the plan's cheapest hours ($66 if it starts charging the moment it is plugged in at 6 pm). The most expensive plan we checked here costs $6 a month more.
| Plan | Monthly bill | EV share, scheduled | EV share, plug in at 6 pm | EFL date |
|---|---|---|---|---|
| Rhythm PowerShift Select 12 Time of use | $171 | $37 | $66 | September 3, 2026 |
| Reliant Free Overnight 12 Free nights | $176 | $0 | $85 | September 30, 2026 |
Four ways Texas plans discount EV charging
Free nights. Energy is free for part of every night and the daytime price is higher to pay for it. They work when the car does most of its charging in the free window — and when the rest of the house is not running the air conditioner hard in the expensive afternoon hours.
Free weekends. The same idea for Friday night to Sunday. Only useful if the car can do most of a week's charging on Saturday and Sunday.
Time of use. A low price most of the day and a high price in the evening peak. Rhythm's PowerShift plans charge roughly three times as much from 6 to 10 pm, which is exactly when an unscheduled car starts charging after the drive home.
EV-only credits. Only the car's charging is discounted, measured by your charger or by the car itself, so the rest of the house keeps a normal price. Each one needs specific hardware or a specific car brand.
"Free" nights still carry a delivery charge — usually
Every kWh you use in Texas pays the wires company that delivers it. That delivery charge is set by the state, not by your plan:
| Delivery area | Covers | Per month | Per kWh |
|---|---|---|---|
| Oncor | Dallas-Fort Worth, Waco, Tyler, Midland-Odessa | $4.06 | 6.9¢ |
| CenterPoint | Houston and surrounding area | $4.90 | 6.5¢ |
| AEP Texas Central | Corpus Christi, McAllen, Laredo, Victoria | $3.24 | 5.7¢ |
On most free-nights and EV plans the energy charge drops to zero but this delivery charge stays, so a "free" kWh still costs you 5.7¢–6.9¢. The exceptions in our list are Reliant Free Overnight 12, Reliant Truly Free Nights 100% Solar 12 and Reliant Truly Free Weekends 12: their EFLs set the delivery charge in the free hours to $0 as well and recover it in the daytime price.
Plans that do not accept EV owners
- TXU Energy Free Nights & Cool Summer 12: The Oncor EFL dated 6 August 2026 makes customers with electric vehicles, batteries or solar panels ineligible. (ChooseMyPower review of EFL version ONXFNCOOLS12AC)
Always read the eligibility section of an EFL before you switch: a plan that bans EVs can bill you at its regular price, or drop you, once the provider sees a car charging every night.
Where this calculator works
It covers the Oncor, CenterPoint, AEP Texas Central delivery areas. Other competitive areas — AEP Texas North (Abilene, San Angelo), TNMP (League City, Texas City, Lewisville, Alpine), Lubbock Power & Light (Lubbock) — are not covered yet. Residents of Austin (Austin Energy), San Antonio (CPS Energy), El Paso (El Paso Electric) cannot choose a retail electricity plan; their city utility sets one rate.
Texas residential electricity averaged 16.0¢ per kWh all-in over the twelve months to August 2026, according to the U.S. Energy Information Administration; that is the default in the "your current rate" box. See EV charging stations in Texas for public chargers.
How the numbers are worked out
- We model a full year hour by hour (8,760 hours). Your monthly household use is spread over the year using a typical home's daily pattern, with the share used from 9 pm to 6 am set by the selector (32% is what Reliant's EFLs assume). Summer air conditioning is not modelled separately.
- Car charging is the same every day: miles × efficiency ÷ (1 − charging loss), spread evenly over the year. "Scheduled" charging fills each plan's cheapest hours while the car is parked at home; the fixed-start options charge at full power from that hour until done.
- Each hour pays the plan's energy charge for that hour plus the delivery charge, except where an EFL sets either to zero. Monthly base charges, the delivery company's monthly charge and listed credits are added. Taxes, the PUC assessment and ERCOT fees are left out, as they are in EFL averages.
- Plan prices are what each EFL showed on its date; delivery charges are the ones in effect October 4, 2026. Providers change prices often — the EFL for your address is the only binding price.
- This is a calculator, not advice to switch. Check the early termination fee on your current plan first.
Sources
- Reliant Free Overnight 12 (Oncor): EFL R1F00194426185C, October 4, 2026. Energy and delivery are both $0 from 9 pm to 6 am every night.
- Reliant Truly Free Weekends 12 (Oncor): EFL R1F00194426032C, October 4, 2026. Energy and delivery are both $0 from 8 pm Friday to midnight Sunday.
- Rhythm PowerShift 12 (Oncor): EFL Rhythm offer snapshot c424102d, July 21, 2026. 5.155¢ most of the day, 15.242¢ from 6 to 10 pm (and 12.692¢ 6-9 am in January-March). Assumes the $5 Auto Pay & Paperless credit.
- Rhythm Simply Select 36 (Oncor): EFL Rhythm offer snapshot 2086d3c6, August 10, 2026. One flat energy price around the clock: 8.617¢.
- Reliant Free Overnight 12 (CenterPoint): EFL R1F00194426141D, September 30, 2026. Energy and delivery are both $0 from 9 pm to 6 am every night.
- Reliant Truly Free Nights 100% Solar 12 (CenterPoint): EFL R1F00181603836G, September 30, 2026. Energy and delivery are both $0 from 8 pm to 6 am every night; 100% renewable.
- Rhythm PowerShift EV 12 (CenterPoint): EFL Rhythm offer snapshot 8d7ddaac, July 17, 2026. 4.646¢ from midnight to 6 am, 5.159¢ most other hours, 14.541¢ from 6 to 10 pm. Assumes the $5 Auto Pay & Paperless credit.
- Rhythm PowerShift 12 (CenterPoint): EFL Rhythm offer snapshot 9daca715, August 21, 2026. 4.671¢ most of the day, 14.321¢ from 6 to 10 pm (and 10.453¢ 6-9 am in January-March). Assumes the $5 Auto Pay & Paperless credit.
- Rhythm Simply Select 12 (CenterPoint): EFL Rhythm offer snapshot 58497b66, August 28, 2026. One flat energy price around the clock: 7.423¢.
- Reliant Free Overnight 12 (AEP Texas Central): EFL R1F00188445846E, September 30, 2026. Energy and delivery are both $0 from 9 pm to 6 am every night.
- Rhythm PowerShift Select 12 (AEP Texas Central): EFL Rhythm offer snapshot f831d45e, September 3, 2026. 5.442¢ most of the day, 14.253¢ from 6 to 10 pm.
- Delivery charges: Discount Power, TDSP delivery charges (rates as of 10/4/2026); matches Reliant EFL dated 09/30/2026.
- Delivery charges: Discount Power, TDSP delivery charges (rates as of 10/4/2026); matches Reliant EFLs dated 09/30/2026.
- Delivery charges: Discount Power, TDSP delivery charges (rates as of 10/4/2026); matches Reliant EFLs dated 10/04/2026.
- Texas average residential price: U.S. Energy Information Administration, monthly residential price, August 2026.
Plan list checked October 14, 2026. Spotted a newer EFL? Tell us and we will update it.
Data updated 2026-10-14