A common question with a simple answer
Oncor vs CenterPoint — What's the Difference?
The short answer: you don't choose between them. Here's what they actually are, which one serves your address, and why it matters less than you might think.
Oncor and CenterPoint aren't electricity companies you sign up with — they're the regulated utilities that own the physical wires to your home.
Side by side
What each one actually is
Oncor
Serves: Dallas–Fort Worth and most of North, Central, and West Texas
Texas's largest delivery utility by territory size. If you live in the DFW metro or much of North Texas, Oncor almost certainly owns the poles and wires to your home — regardless of which REP (TXU, Gexa, Reliant, etc.) you choose.
CenterPoint Energy
Serves: Greater Houston and the Gulf Coast
Covers Houston, Baytown, Galveston, Sugar Land, and most of the surrounding metro. Same role as Oncor — owns the physical delivery infrastructure, regardless of which REP you sign up with.
The choice that actually matters
Your REP, not your TDU
Since your TDU is fixed by address and every REP in that territory pays the same delivery rate, it has almost no bearing on which electricity plan is the best deal for you. What actually varies — and is worth comparing — is your Retail Electric Provider: the energy rate, contract term, and whether a plan has a usage-based bill credit worth chasing. See our full breakdown of every fee on a Texas bill for the complete picture.
Compare what actually changes your bill
See real plan costs for your address
Our calculator bakes your area's delivery cost into every total automatically — so you're comparing real, all-in numbers from the start.
Compare Real Plan Costs →