"Call TXU when the lights go out" is the wrong answer.
Most articles about contacting TXU Energy list one phone number and stop. That is fine for a billing question. It is the wrong tool for almost everything else, and it is dangerous advice during an outage.
TXU Energy is a Retail Electric Provider. They sell the kWh and send the bill. They do not own the wires, the poles, the transformers or the trucks. When the power goes out, the only company that can restore it is your TDU: Oncor, CenterPoint, AEP Texas or TNMP, depending on where you live. Calling TXU during an outage adds 20 minutes to your restoration, because TXU's first answer is "please call your TDU."
The same logic applies to deposits, complaints, business accounts and moves. Each has a faster channel than the headline residential line. The right question is not "what is TXU's phone number," it is "which channel actually solves my problem in one step."
Three TXU channels. Pick by what you need.
TXU runs three first-party contact channels for residential customers plus a separate desk for business. Each is faster than the others for a specific job.
Channel 1, voice
Residential customer service
Bill questions, payment arrangements, plan switches, moves, renewals, deposits. One number, IVR routes you to the right desk inside.
1-800-242-9113M-F 8 am to 9 pm CT, Sat 9 am to 6 pm CT.
Channel 2, self-service
MyTXU app + my.txu.com
Pay a bill, view hourly usage from your smart meter, schedule a move, change plan or autopay. Free; no hold music.
my.txu.comiOS, Android, and web. 24/7.
Channel 3, B2B
Business sales desk
Commercial accounts above ~50,000 kWh/year, multi-site setups, demand-response, custom contracts. Separate team from residential.
1-888-399-5501M-F 8 am to 6 pm CT.
A fourth channel exists for outages, but it is not TXU. Skip to the TDU section below for the right number in your area.
What to use for what, in one table.
For each common TXU task, the channel that closes it fastest and the typical hold time you can expect on the phone path.
| Task | Fastest channel | Phone fallback | Typical hold |
|---|---|---|---|
| Pay a bill | MyTXU app or my.txu.com | 1-800-242-9113 | 1 to 3 min |
| Payment arrangement | Phone (needs human approval) | 1-800-242-9113 | 5 to 15 min |
| Move-in / move-out | my.txu.com (3 to 5 days ahead) | 1-800-242-9113 | 5 to 10 min |
| Sign up new service | txu.com/sign-up | 1-800-242-9113 | 10 to 20 min |
| Renewal / contract end | Phone (negotiate the offer) | 1-800-242-9113 | 5 to 15 min |
| Power outage | Your TDU, not TXU | See TDU table below | 2 to 30 min |
| Deposit / assistance | Phone (verify eligibility) | 1-800-242-9113 | 10 to 20 min |
| Business / commercial | Business sales line | 1-888-399-5501 | 2 to 8 min |
| Complaint / escalation | Email / chat (paper trail), then PUCT | 1-800-242-9113 | 15 to 30 min |
Hold times are typical, not guaranteed. Mondays and the day after a major Texas storm are the slowest; Tuesday to Thursday 9 to 11 am CT is usually the fastest window.
About 60% of "TXU outage" calls should never have been made to TXU.
The single biggest source of friction in TXU customer service is people calling the residential line for problems TXU cannot solve. Power outages top the list, but the pattern repeats for meter accuracy disputes, voltage complaints and "the lights are dimming" reports.
Every one of those is a wires-side issue. TXU's first action on every such call is to read you the TDU number and end the call. By the time you have waited on hold, given your account number, listened to the explanation and dialed Oncor or CenterPoint, you have lost 20 to 35 minutes with no progress on the outage.
The fix is simple. Save your TDU's number next to TXU's in your phone, labelled "POWER OUT." When the lights go, you skip the wrong call.
average time lost by calling TXU first
How TXU's call center actually routes you.
A few facts about the organisation behind the phone tree that make navigation faster.
TXU is a Vistra Corp brand
TXU Energy Retail Company LLC is a wholly-owned subsidiary of Vistra Corp (NYSE: VST), headquartered at 6555 Sierra Drive, Irving, TX 75039. Vistra also owns Ambit Energy, Dynegy and Public Power. The TXU contact center is separate from the sister brands; calling Ambit's line does not get you a TXU agent.
One number, branched by IVR
1-800-242-9113 is the single residential entry point. The IVR asks you for your account number first, then branches by stated intent (billing, move, renewal, etc.). If you press 0 repeatedly at the start you reach a human faster, but you still get routed by intent at the second prompt.
Bilingual support (English + Spanish)
Spanish-language support is available on the same residential line; the IVR offers it as a first-prompt option. Volume of Spanish-speaking customer support reflects TXU's coverage of South Texas and the Rio Grande Valley.
Email / chat for paper trails
TXU runs a contact form and live chat at txu.com. Use these when you want a written record (complaints, disputed charges, promised credits). The 21-day clock for a PUCT complaint starts the moment TXU receives your written request.
Why this matters: the phone tree is optimised for billing and account changes. For anything that needs a paper trail, route to email or chat first; you can always escalate by phone afterwards.
Where TXU shoppers waste hours on the phone.
Five patterns we see in complaints filed with the PUCT and on customer-review sites. Each one is fixable in under a minute.
If the lights are out, call your TDU.
Texas has four large TDUs. Find your area, save the number alongside TXU in your phone. Each accepts both voice calls and texts; calls are answered 24 hours a day.
CenterPoint
Houston metro, Galveston, surrounding counties
1-800-332-7143Outage tracker on centerpointenergy.com.
AEP Texas
South TX, West TX, Coastal Bend, Rio Grande Valley
1-866-223-8508Two zones: AEP Central + AEP North.
TNMP
Gulf Coast suburbs, scattered communities statewide
1-888-866-7456Smaller footprint; check ZIP coverage.
Not sure which TDU serves you? Check the "Delivery Charges" or "TDSP" line on any TXU bill. The TDU's name is printed there.
What to actually do before you dial.
Pull up your account number
Find it on any TXU bill, the MyTXU app home screen, or your enrollment email. Saves 4 to 6 minutes in the IVR.
Try the app first
Payments, autopay, paperless, plan switch, move scheduling: all faster in MyTXU than on the phone. Reach for the phone only when a human decision is needed.
Save your TDU number
Add Oncor, CenterPoint, AEP or TNMP next to TXU in your phone, labelled "POWER OUT." Saves 20+ minutes in any outage.
Use chat or email for promises
Any credit, waiver or fee reversal you negotiate verbally must be logged in writing the same day. Otherwise it is unenforceable.
Know your assistance options
Texas runs CEAP (the local LIHEAP) through TDHCA. TXU can flag your account so disconnection is paused while you apply.
Escalate to the PUCT if stuck
If 21 days pass with no fix, file a complaint at puc.texas.gov. Free, no lawyer, TXU must respond.
Common questions about contacting TXU Energy.
Residential customer service is 1-800-242-9113. Open Monday to Friday 8 am to 9 pm Central Time, Saturday 9 am to 6 pm CT, and closed Sunday. The same number routes to billing, moves, renewals, plan changes and deposit questions through an IVR menu. Business and commercial customers should use 1-888-399-5501 instead, which reaches a separate sales desk during business hours.
Not TXU. TXU sells the electricity but does not own the wires that deliver it. For an outage you call your TDU directly: Oncor 1-888-313-4747 (DFW and North Texas), CenterPoint 1-800-332-7143 (Houston metro), AEP Texas 1-866-223-8508 (South and West Texas), or TNMP 1-888-866-7456 (Gulf suburbs). All four lines are answered 24 hours a day and most accept text reports.
Yes. The MyTXU app is free on iOS and Android, and the same features are at my.txu.com on the web. You can pay a bill, see hourly usage from your smart meter, schedule a move, switch plans, sign up for autopay and paperless billing, and contact support via chat. For routine tasks the app is faster than the phone.
First, contact TXU customer service in writing (chat transcript or email) so you have a paper trail. If TXU does not resolve the issue within 21 days, file a free complaint with the Public Utility Commission of Texas (PUCT) at puc.texas.gov. The PUCT requires TXU to respond formally within 21 days. Most complaints filed at this level resolve in the customer favour.
TXU Energy Retail Company LLC is headquartered at 6555 Sierra Drive, Irving, TX 75039, inside the broader Dallas-Fort Worth metro. The parent company, Vistra Corp (NYSE: VST), is at the same address. You can mail billing disputes there, but a tracked digital channel (chat or email) is faster and easier to reference if you later escalate to the PUCT.
The fastest path is online at txu.com/sign-up. Enter your ZIP code, pick a plan (compare the Electricity Facts Label for each), and e-sign. Most enrollments take 1 to 3 business days; the TDU then swings the meter. If you prefer a human, call 1-800-242-9113. Always compare TXU against at least two other REPs on powertochoose.org before signing, because plan rates can swing 15% in any direction in the same week.
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