Texas Electric Utilities
& Delivery Tariffs.
In the deregulated Texas ERCOT electricity market, your Transmission and Distribution Utility (TDU / TDSP) maintains the physical power grid, wires, poles, and electric meters. You choose your Retail Electric Provider (REP) for supply, but your TDU is fixed by your physical address. This directory shows its tariff registry inputs alongside outage contacts and service-territory information.
Who delivers your power (your TDU) is different from who bills your power (your REP). A TDU's tariff establishes delivery charges for its service area. Review each plan's current Electricity Facts Label (EFL) and terms to see how those charges are reflected in that offer.
Texas Transmission & Distribution Utilities
Oncor Electric Delivery Company LLC
Serving over 10 million customers across 98 counties in North, Central, and West Texas, including the Dallas-Fort Worth metroplex, Waco, Tyler, Wichita Falls, Midland, Odessa, and Round Rock.
CenterPoint Energy Houston Electric, LLC
Serving approximately 2.6 million metered customers across a 5,000-square-mile territory in the Greater Houston metropolitan area and upper Gulf Coast, including Harris, Fort Bend, Montgomery, Brazoria, and Galveston counties.
AEP Texas Central Company
Serving South Texas, the Coastal Bend, and the Rio Grande Valley across 44 counties, including Corpus Christi, Laredo, McAllen, Harlingen, Mission, Edinburg, and Victoria.
AEP Texas North Company
Serving West and North Texas across 35 counties, including Abilene, San Angelo, Vernon, and surrounding agricultural and oilfield communities.
Texas-New Mexico Power Company
Serving more than 260,000 homes and businesses across three distinct geographic regions in Texas: the Gulf Coast (Texas City, Friendswood, Angleton, Alvin), North-Central Texas (Lewisville, Gatesville), and West Texas (Fort Stockton, Pecos).
Texas TDU Delivery Tariffs (Effective 2026-03-01)
The tariff inputs used by this directory. Review a current plan's EFL and terms for the delivery charges and credits that apply to that offer.
| Utility (TDU) | Primary Region | Customer Charge | Energy Delivery | Outage Reporting | Tariff Reference |
|---|---|---|---|---|---|
| Oncor | Dallas, Tarrant, Collin Co. | $4.23/mo | 5.1257¢/kWh | 888-313-4747 | PUCT Docket #55001 |
| CenterPoint Energy | Harris, Fort Bend, Montgomery Co. | $4.39/mo | 5.4632¢/kWh | 713-207-2222 | PUCT Docket #55002 |
| AEP Texas Central | Nueces, Webb, Hidalgo Co. | $4.79/mo | 5.8912¢/kWh | 866-223-8508 | PUCT Docket #55003 |
| AEP Texas North | Taylor, Tom Green, Wilbarger Co. | $4.79/mo | 5.2145¢/kWh | 866-223-8508 | PUCT Docket #55004 |
| TNMP | Galveston, Brazoria, Matagorda Co. | $7.85/mo | 5.6834¢/kWh | 888-866-7456 | PUCT Docket #55005 |
Frequently Asked Questions About Texas TDUs
Can I choose or switch my Transmission and Distribution Utility?
No. TDUs operate as state-regulated regional monopolies. The utility that delivers electricity to your home is entirely determined by your physical address and meter location. You have the right to shop and choose your Retail Electric Provider (REP), but your TDU remains fixed.
Why do TDU charges appear on my electric bill?
Your Retail Electric Provider (REP) manages your billing account, while the TDU owns the wires, poles, and meters that deliver electricity to your property. Your plan's EFL and terms identify how delivery charges and any plan credits are reflected in its estimated bill.
Who do I call if my power goes out?
Always call your Transmission and Distribution Utility (TDU), not your retail electric company. Your TDU employs the lineworkers and operates the emergency response systems responsible for restoring service during outages. Call Oncor at (888) 313-4747, CenterPoint at (713) 207-2222, AEP Texas at (866) 223-8508, or TNMP at (888) 866-7456.
Explore Texas Electricity Rate Benchmarks
Review observed rate-index coverage. A territory, term, or usage bucket appears only when qualifying plan observations are available.