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| Utility | Lowest-cost plan for home + EV | Total a month | EV charging on that plan | Lowest-cost plan without a bill credit | EV adds a month |
|---|---|---|---|---|---|
| Oncor 127 plans ranked |
Sure Saver 12 Spark Energy · 12 mo · Bill credit |
$129.78 $1,557/yr |
−$9.88 without EV $1,676/yr |
True Value 12 True Power · 12 mo · #5 of 127 |
+$39.31 3.9¢/mi |
| CenterPoint 128 plans ranked |
SimpleSaver 12 AP Gas & Electric (TX) · 12 mo · Bill credit |
$132.50 $1,590/yr |
−$19.83 without EV $1,828/yr |
True Value 12 True Power · 12 mo · #5 of 128 |
+$38.86 3.9¢/mi |
| AEP Texas Central 121 plans ranked |
SimpleSaver 12 AP Gas & Electric (TX) · 12 mo · Bill credit |
$125.16 $1,502/yr |
−$21.17 without EV $1,756/yr |
True Value 12 True Power · 12 mo · #5 of 121 |
+$36.06 3.6¢/mi |
| AEP Texas North 123 plans ranked |
SimpleSaver 12 AP Gas & Electric (TX) · 12 mo · Bill credit |
$126.50 $1,518/yr |
−$20.84 without EV $1,768/yr |
True Value 12 True Power · 12 mo · #5 of 123 |
+$36.73 3.7¢/mi |
| TNMP 121 plans ranked |
Speedy 12 Express Energy · 12 mo |
$152.29 $1,827/yr |
+$36.40 without EV $1,391/yr |
Speedy 12 Express Energy · 12 mo · #1 of 121 |
+$36.40 3.6¢/mi |
| Lubbock Power & Light 82 plans ranked |
SimpleSaver 12 AP Gas & Electric (TX) · 12 mo · Bill credit |
$145.43 $1,745/yr |
−$15.24 without EV $1,928/yr |
True Value 12 True Power · 12 mo · #3 of 82 |
+$39.65 4.0¢/mi |
“EV charging” = the plan’s 12-month estimate with the EV minus the same plan without the EV. On bill-credit plans this can be zero or negative: the EV’s extra kWh push more months over the credit threshold, so the plan’s credit is paid in more months. That is the credit, not free charging — the same household might pay less on another plan without the EV. Plans without a bill credit or minimum-usage fee show the plain cost of the extra kWh.
miles × 0.3364 kWh per mile (EPA combined, at the wall).
| Plan | Free hours (as written in the plan’s label) | Est. a year with the EV | vs. best fixed plan |
|---|---|---|---|
| Bright Nights 8 Chariot Energy · 8 mo · Oncor |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,791 7 of 8 overnight hours free · 70% of EV kWh free |
$133 less a year than True Value 12 ($1,924/yr) |
| Bright Nights 12 Chariot Energy · 12 mo · Oncor |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,859 7 of 8 overnight hours free · 70% of EV kWh free |
$65 less a year than True Value 12 ($1,924/yr) |
| Bright Nights 8 Chariot Energy · 8 mo · CenterPoint |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,754 7 of 8 overnight hours free · 70% of EV kWh free |
$154 less a year than True Value 12 ($1,908/yr) |
| Bright Nights 12 Chariot Energy · 12 mo · CenterPoint |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,851 7 of 8 overnight hours free · 70% of EV kWh free |
$57 less a year than True Value 12 ($1,908/yr) |
| Bright Nights 24 Chariot Energy · 24 mo · CenterPoint |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,906 7 of 8 overnight hours free · 70% of EV kWh free |
$2 less a year than True Value 12 ($1,908/yr) |
| Bright Nights 36 Chariot Energy · 36 mo · CenterPoint |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,962 7 of 8 overnight hours free · 70% of EV kWh free |
$54 more a year than True Value 12 ($1,908/yr) |
| Free Weekends-24 Champion Energy Services · 24 mo · CenterPoint |
Free: Saturday and Sunday, all day “Weekend hours are all day Saturday and Sunday, from 12:01 am on Saturday morning to 11:59 pm Sunday night.” EFL ↗ |
$2,370 29% of EV kWh free (weekend share) |
$462 more a year than True Value 12 ($1,908/yr) |
| Bright Nights 8 Chariot Energy · 8 mo · AEP Texas Central |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,586 7 of 8 overnight hours free · 70% of EV kWh free |
$170 less a year than True Value 12 ($1,755/yr) |
| Bright Nights 12 Chariot Energy · 12 mo · AEP Texas Central |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,655 7 of 8 overnight hours free · 70% of EV kWh free |
$100 less a year than True Value 12 ($1,755/yr) |
| Bright Nights 24 Chariot Energy · 24 mo · AEP Texas Central |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,725 7 of 8 overnight hours free · 70% of EV kWh free |
$31 less a year than True Value 12 ($1,755/yr) |
| Bright Nights 36 Chariot Energy · 36 mo · AEP Texas Central |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,752 7 of 8 overnight hours free · 70% of EV kWh free |
$3 less a year than True Value 12 ($1,755/yr) |
| Free Weekends-24 Champion Energy Services · 24 mo · AEP Texas Central |
Free: Saturday and Sunday, all day “Weekend hours are all day Saturday and Sunday, from 12:01 am on Saturday morning to 11:59 pm Sunday night.” EFL ↗ |
$2,113 29% of EV kWh free (weekend share) |
$357 more a year than True Value 12 ($1,755/yr) |
| Bright Nights 8 Chariot Energy · 8 mo · AEP Texas North |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,597 7 of 8 overnight hours free · 70% of EV kWh free |
$190 less a year than True Value 12 ($1,788/yr) |
| Bright Nights 12 Chariot Energy · 12 mo · AEP Texas North |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,681 7 of 8 overnight hours free · 70% of EV kWh free |
$107 less a year than True Value 12 ($1,788/yr) |
| Bright Nights 24 Chariot Energy · 24 mo · AEP Texas North |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,750 7 of 8 overnight hours free · 70% of EV kWh free |
$37 less a year than True Value 12 ($1,788/yr) |
| Bright Nights 36 Chariot Energy · 36 mo · AEP Texas North |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,792 7 of 8 overnight hours free · 70% of EV kWh free |
$4 more a year than True Value 12 ($1,788/yr) |
| Bright Nights 8 Chariot Energy · 8 mo · TNMP |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,997 7 of 8 overnight hours free · 70% of EV kWh free |
$170 more a year than Speedy 12 ($1,827/yr) |
| Bright Nights 12 Chariot Energy · 12 mo · TNMP |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$2,080 7 of 8 overnight hours free · 70% of EV kWh free |
$253 more a year than Speedy 12 ($1,827/yr) |
| Bright Nights 24 Chariot Energy · 24 mo · TNMP |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$2,136 7 of 8 overnight hours free · 70% of EV kWh free |
$309 more a year than Speedy 12 ($1,827/yr) |
| Bright Nights 36 Chariot Energy · 36 mo · TNMP |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$2,178 7 of 8 overnight hours free · 70% of EV kWh free |
$350 more a year than Speedy 12 ($1,827/yr) |
| Free Weekends-24 Champion Energy Services · 24 mo · TNMP |
Free: Saturday and Sunday, all day “Weekend hours are all day Saturday and Sunday, from 12:01 am on Saturday morning to 11:59 pm Sunday night.” EFL ↗ |
$2,590 29% of EV kWh free (weekend share) |
$763 more a year than Speedy 12 ($1,827/yr) |
| Bright Nights 8 Chariot Energy · 8 mo · Lubbock Power & Light |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,744 7 of 8 overnight hours free · 70% of EV kWh free |
$148 less a year than True Value 12 ($1,892/yr) |
| Bright Nights 12 Chariot Energy · 12 mo · Lubbock Power & Light |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,785 7 of 8 overnight hours free · 70% of EV kWh free |
$106 less a year than True Value 12 ($1,892/yr) |
| Bright Nights 24 Chariot Energy · 24 mo · Lubbock Power & Light |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,869 7 of 8 overnight hours free · 70% of EV kWh free |
$23 less a year than True Value 12 ($1,892/yr) |
| Bright Nights 36 Chariot Energy · 36 mo · Lubbock Power & Light |
Free: every night 11:00 pm – 6:00 am “Bright Nights hours are 11:00 PM to 06:00 AM. Daytime hours are 06:00 AM to 11:00 PM.” EFL ↗ |
$1,980 7 of 8 overnight hours free · 70% of EV kWh free |
$88 more a year than True Value 12 ($1,892/yr) |
| Free Weekends-24 Champion Energy Services · 24 mo · Lubbock Power & Light |
Free: Saturday and Sunday, all day “Weekend hours are all day Saturday and Sunday, from 12:01 am on Saturday morning to 11:59 pm Sunday night.” EFL ↗ |
$2,208 29% of EV kWh free (weekend share) |
$316 more a year than True Value 12 ($1,892/yr) |
26 of 47 time-of-use plans estimated; 21 excluded because the free hours are not clearly stated in the label (12), hourly rates are not in the plan’s Electricity Facts Label (6), the label’s prices could not be reproduced (3).
About 336 kWh for 1,000 miles a month, from its EPA combined consumption of 33.6 kWh per 100 miles (fueleconomy.gov), which is measured at the wall and includes charging losses. 500 miles: about 168 kWh; 1,500 miles: about 505 kWh.
As of Oct 9, 2026, about $36.06–$39.65 a month for 1,000 miles (3.6–4.0¢ per mile) on the lowest-cost fixed-rate plan without a bill credit or minimum-usage fee in each of the 6 Texas utilities, for a home averaging 1,000 kWh a month. TexasHomeBills™ estimate: the plan’s 12-month cost with the EV minus without, before taxes.
Bill-credit plans subtract a fixed credit in months when usage is above a threshold. EV charging can push more months over it, so the credit is paid more often and the 12-month total can fall. The extra electricity is not free; the credit just applies more often.
TexasHomeBills is independent. Not affiliated with or endorsed by the PUCT, the EPA or any automaker. Estimates, not offers.
TexasHomeBills™, “Charging a 2025 Ford Mustang Mach-E AWD at home in Texas” (data as of Oct 9, 2026), https://texashomebills.com/electricity/ev/vehicle/ford-mustang-mach-e-awd
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