For many Texans, opening a monthly electric bill can lead to a bit of confusion. You might have carefully compared options on ElectricityOne, selected an eco-friendly retail plan with a premier provider like Gexa Energy, and yet you still see another company’s name—such as Oncor, CenterPoint, or AEP—listed on your statement. You might even see their utility trucks servicing the smart meters or power lines in your neighborhood. Why are there two different companies involved in keeping your lights on?
To navigate the deregulated Lone Star State market successfully, you must first understand what is a transmission and distribution service provider and how its role differs from your retail supplier. Understanding this division of labor is the key to managing your energy footprint, choosing the right plans, and knowing exactly who to call when the power goes out.
REP vs. TDSP: Understanding the Division of Labor
The Texas deregulated electricity market is built on a clear separation between the company that sells you electricity and the company that physically delivers it to your home. These two entities are known as Retail Electric Providers (REPs) and Transmission and Distribution Service Providers (TDSPs, also commonly referred to as TDUs).
Your Retail Electric Provider (REP) is the customer-facing business you choose to buy your electricity from. Companies like Gexa Energy purchase electricity from power generators and package it into various plans for consumers. Your REP manages your account, issues your monthly bill, and handles your customer service inquiries.
Your Transmission and Distribution Service Provider (TDSP), on the other hand, is the utility company that owns and maintains the physical infrastructure. They own the poles, wires, power lines, and smart meters. Regardless of which retail provider you choose, your local TDSP is determined solely by your physical geographic location. You cannot choose your TDSP; they are regulated monopolies overseen by the Public Utility Commission of Texas (PUCT).
The Six Major Texas TDSPs
The vast majority of the ERCOT grid is divided into distinct service territories managed by six major utility companies. These include:
- Oncor: The largest TDSP in Texas, serving Dallas-Fort Worth, Waco, Wichita Falls, and parts of West Texas.
- CenterPoint Energy: Serves the Houston metropolitan area and surrounding communities.
- AEP Texas Central: Covers Corpus Christi, McAllen, Laredo, and much of South Texas.
- AEP Texas North: Services Abilene, San Angelo, and portions of Northern and Western Texas.
- Texas New-Mexico Power (TNMP): Covers various pockets of the state, including areas northeast of Houston, portions of West Texas, and communities south of Dallas.
- Lubbock Power & Light (LP&L): The newest major addition to the deregulated landscape, having transitioned its customers into the competitive ERCOT market.
How Renewable Plans and TDSPs Interact
This division of labor is particularly important to understand when you choose an environmentally conscious electricity plan. For example, when you sign up for the popular Gexa Eco Saver Plus 12 Plan, Gexa Energy ensures that 100% of your electricity usage is offset by purchasing and retiring renewable energy certificates (RECs) sourced from wind or solar generation.
However, because of how the physical grid operates, those specific “green electrons” do not travel through a dedicated wire directly from a wind farm to your appliances. Instead, all electricity generated in Texas is pooled together on the ERCOT grid. Your local TDSP is the physical entity responsible for delivering a reliable stream of electricity from that shared grid over the physical wires to your home. By choosing an eco-friendly plan with Gexa, you are funding green generation, while your local utility ensures the physical delivery remains seamless and constant.
Why Shop Through ElectricityOne?
Finding the perfect balance between great retail plans and understanding your local utility charges can feel overwhelming. That is where ElectricityOne comes in. With over 20 years of experience providing reliable, quick, and courteous electric service for Texas homes and businesses, we make shopping simple.
- Meticulous Provider Selection: We partner only with top-tier REPs like Gexa Energy to ensure long-term customer satisfaction and competitive pricing.
- 100% Transparency: We help you understand your complete bill, including how your chosen retail plan interacts with your local TDSP’s regulated delivery fees.
- Simplified Shopping: Our platform filters plans based on your specific zip code, instantly matching you with the correct TDSP territory.
Ready to find the best energy plan for your specific utility delivery area? Call 1.844.567.2863 today to speak with our Texas energy experts.
Frequently Asked Questions
Can I choose a different TDSP if I do not like their delivery charges?
No. Your TDSP is determined strictly by your physical geographic location. While you have the freedom to choose your Retail Electric Provider (REP), you must use the utility company that owns and maintains the physical power lines in your specific area.
Why do I see utility delivery charges on my bill if I signed up with a green energy provider?
TDSP delivery charges are pass-through fees regulated by the PUCT. They cover the cost of maintaining the physical grid, poles, wires, and meters. Every customer in a given utility territory pays these same regulated delivery fees, regardless of whether they choose a traditional plan or a 100% renewable energy plan.
Who do I call if my power goes out or a power line is knocked down?
In the event of a power outage, equipment malfunction, or downed line emergency, you should contact your local TDSP (such as Oncor, CenterPoint, or AEP) directly, rather than your retail provider. The TDSP owns and services the physical infrastructure and is responsible for restoring power safely and quickly.
