At a Glance
| TXU Energy | Reliant Energy | |
|---|---|---|
| Parent Company | Vistra Corp | NRG Energy |
| Founded | 2002 | 2000 |
| Customers | 1.8 million+ | 1.5 million+ |
| Customer Rating | 3.6/5 | 3.7/5 |
| Signature Plan | Free Nights & Solar Days | Truly Free Weekends |
| Phone | 1-800-818-6132 | 1-866-222-7100 |
Current Rates by TDSP Area
These ranges come straight from each provider's current plans, not a fixed snapshot — they update automatically rather than going stale.
| Area | TXU Energy | Reliant Energy |
|---|---|---|
| Oncor (Dallas-Fort Worth) | 10.9¢/kWh | 15.4-18.4¢/kWh |
| CenterPoint (Houston) | 9.9¢/kWh | 14.6-18.1¢/kWh |
| AEP Texas (Corpus Christi, McAllen) | 10.9-12.9¢/kWh | 14.9-19.5¢/kWh |
| TNMP (Lubbock, parts of Houston) | 11.5¢/kWh | 16.5-18.7¢/kWh |
Ranges reflect all current plans on file for each provider in that TDSP area, not a single featured plan — the exact rate you qualify for depends on your specific ZIP code and usage level.
Free Nights & Solar Days vs. Truly Free Weekends
Both providers built a signature plan around free electricity during a specific window, offset by a higher rate the rest of the time. Neither is objectively better — it depends entirely on when your household actually uses electricity.
TXU: Free Nights & Solar Days
Free electricity 9pm-6am, every day of the week.
Best for: night owls, EV owners charging overnight, households that can run laundry and dishwashers after 9pm.
Reliant: Truly Free Weekends
Free electricity Friday 6pm through Sunday 11:59pm.
Best for: households that concentrate high-usage chores (laundry, pool pumps, meal prep) on weekends rather than weeknights.
Both plan types push a meaningful share of your usage into a specific window to actually save money — if your usage is spread evenly across the week, a simple fixed-rate plan from either provider (or a competitor like Gexa) is usually the safer bet. See our guide to usage-based plan structures before signing up for either.
Strengths & Weaknesses
TXU Energy
Strengths
- +Large company with financial stability and 24/7 customer support
- +Wide variety of plan types including innovative time-of-use options
- +Established mobile app with usage tracking and bill pay
Weaknesses
- −Renewal rates often significantly higher than initial rates
- −Higher base charges than some smaller competitors
- −Aggressive marketing can mean frequent upsell attempts
Reliant Energy
Strengths
- +Strong presence in Houston/CenterPoint service area
- +Innovative plan structures like Truly Free Weekends
- +Reliant Rewards program with bill credits and perks
Weaknesses
- −Some plans have confusing tiered pricing structures
- −Weekend plans have higher weekday rates that offset savings
- −Customer service quality varies by representative
Full breakdowns: TXU Energy review · Reliant Energy review
Bottom Line
TXU and Reliant are similarly positioned — both are large, well-established "big brand" providers with broad plan menus, a signature free-usage plan, and rates that are competitive but rarely the single cheapest option in the market. Neither is a clear across-the-board winner on price; the better choice usually comes down to whether your usage pattern fits TXU's overnight free window or Reliant's weekend one, and which brand's customer service reputation matters more to you.
If price alone is the deciding factor, compare both against smaller providers like Gexa or 4Change in your ZIP code — big-brand providers often aren't the cheapest option available.
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Frequently Asked Questions
Is TXU Energy or Reliant Energy cheaper?
It varies by TDSP area and changes over time, since both providers price plans dynamically. Check the live rate table above for the current lowest-to-highest range each provider has on file for your area — the specific plan you'd actually qualify for depends on your ZIP code and usage.
Are TXU and Reliant owned by the same company?
No. TXU Energy is owned by Vistra Corp. Reliant Energy is owned by NRG Energy. They're competing companies, not sister brands — unlike some other Texas provider pairs (Reliant and Direct Energy are both NRG-owned; Gexa and Frontier Utilities are both NextEra-owned).
Which has better free-usage plans, TXU or Reliant?
TXU's Free Nights & Solar Days gives free electricity from 9pm-6am; Reliant's Truly Free Weekends gives free electricity Friday 6pm through Sunday. Both charge a higher rate during non-free hours to offset it. The better fit depends entirely on your usage pattern — night owls and EV owners who charge overnight tend to do better with TXU's plan, while households that concentrate laundry, pool pumps, and other high-usage activities on weekends tend to do better with Reliant's.