Texas is held up as the model of retail electric competition: pick your provider, pick your plan, switch anytime. That's true — but it describes only part of the bill. The other part isn't competitive at all, and it explains why two households on an identical plan can pay noticeably different rates.
Every Texas bill in the competitive market splits into two pieces. The energy charge is the part you actually shop — the price per kilowatt-hour a retail provider advertises on Power to Choose. The delivery charge is set by the regulated transmission and distribution utility (TDU) that owns the poles and wires in your area, and you don't get to choose it. Your address does.
Those TDU territories — Oncor, CenterPoint, AEP Texas Central, AEP Texas North, and Texas-New Mexico Power — each file their own delivery rates with the PUC. So the same 12¢/kWh energy plan lands at a different all-in number depending on which utility delivers it. Across the state this summer, all-in residential rates have run roughly 14.6 to 16.8 cents per kilowatt-hour, and a meaningful slice of that spread is delivery, not energy.
This matters for anyone comparing offers, because the headline rate on a comparison site is usually the energy charge alone. Two plans advertised at the same cents-per-kWh can produce different monthly totals once each zone's delivery charge and the provider's base fee are added — and delivery costs tend to firm up in summer as system peaks push demand-related charges higher.
The practical takeaway for consumers is to compare the all-in rate at their specific address and usage level, not the advertised energy rate in isolation. For utility professionals, it's a reminder that "retail choice" in Texas is really choice over one layer of a two-layer stack — and that the regulated layer still drives a large share of what customers experience as their "electric rate."
Knowing which half of the bill is actually shoppable is the difference between switching to a genuinely cheaper plan and just switching.
Sources: Public Utility Commission of Texas TDU delivery tariffs; ERCOT; Power to Choose.