EYEBISSCheck a bill

Texas electricity definition

Transmission and distribution utility

Also: TDU, TDSP, delivery company, wires company

The company that owns or operates local electricity delivery infrastructure in a service territory.

What it means

The TDU or TDSP handles poles, wires, meters, and delivery. In competitive retail areas it is distinct from the REP that sells the plan and sends the retail bill.

Eyebiss interpretation

How the decision system uses this concept

Changing REPs normally does not change the TDU for the service address. Eyebiss therefore separates delivery charges from switchable plan terms.

Claim provenance: OFFICIAL_SOURCE

Commonly confused with

  • REP
  • electricity provider
  • ERCOT

Related concepts

Retail electric providerA company authorized to sell and bill retail electricity customers in a competitive Texas service area.TDU delivery chargeA regulated charge for transmitting and distributing electricity through the local delivery system.Service addressThe physical location where electricity is delivered.ESI IDThe identifier assigned to a point of electricity delivery in the Texas retail market.

Sources

  1. Transmission and Distribution Service ProvidersElectric Reliability Council of Texas

    TDSPs own or operate transmission or distribution equipment and facilities. TDSPs are distinct from competitive retail providers. PUCT sets regulated TDSP service rates.

    Retrieved 2026-08-21 · ERCOT region, Texas · primary source · freshness mediumDelivery territories and tariffs can change and require current verification.
  2. Power to Choose GlossaryPublic Utility Commission of Texas

    Official consumer definitions for EFL, REP, delivery company, kWh, contract documents, and plan charges.

    Retrieved 2026-08-21 · Texas · primary source · freshness mediumDefinitions summarize consumer concepts; controlling law and the customer's contract remain authoritative for a dispute.