Where you live in the Lone Star State dictates your electricity experience. While Texas has a largely deregulated energy market that allows you to choose your retail electric provider (REP), the physical delivery of your power relies on a different entity entirely: your Transmission and Distribution Service Provider (TDSP).
What is a TDSP and Why Does It Matter?
Your TDSP—often referred to as your local utility—is the company responsible for maintaining the physical electricity grid, poles, wires, and meters in your region. Unlike your retail provider, you do not get to choose your TDSP; it is determined strictly by your geographic location. The major TDSPs in Texas include Oncor (serving the Dallas-Fort Worth metroplex), CenterPoint Energy (serving Houston and surrounding areas), AEP Texas (serving parts of South and West Texas), and Texas-New Mexico Power (TNMP).
How TDSP Charges Affect Your Bill
When you look at your monthly bill or attempt to compare Texas electricity rates, you will notice that your pricing is heavily influenced by your specific area’s utility rates. Average prices per kWh are based on standard 1,000 kWh or 2,000 kWh monthly usage blocks, which include both fixed and variable local charges assessed by these regional utilities. These delivery charges are passed directly to consumers, meaning the same retail plan can cost more or less depending on which utility zone your home falls under.
Navigating the Texas Grid with BulbOne
It is important to remember that not all cities in Texas have electric choice; some municipal areas and cooperatives remain fully regulated. For those who do live in deregulated zones, BulbOne acts as an expert guide and independent platform helping consumers explore their power to choose the best, most cost-effective, and reliable cheap electricity plans in Texas.
Please note that electricity service offers can be fixed or variable. All rates presented are gathered directly from each provider’s Electricity Facts Label (EFL) for comparison purposes only. Rates are subject to change and are only finalized when an agreement is completed. Additionally, BulbOne is an independent resource and is in no way associated with PowerToChoose.org (which is operated by the Public Utility Commission of Texas).
Want to check the most competitive rates available in your specific Texas zip code? Just call 1-844-567-2863 to speak with our local energy experts today.
Frequently Asked Questions
What is the difference between a REP and a TDSP?
A Retail Electric Provider (REP) sells you electricity plans and manages your billing. A TDSP (utility) physically delivers the electricity to your home, maintains the power lines, and fixes outages.
Can I choose a different utility company to deliver my power?
No. Your utility company (TDSP) is determined solely by your physical location and cannot be changed, even though you can choose your retail provider.
Why do electricity rates differ between Houston and Dallas?
Rates differ because Oncor (Dallas) and CenterPoint (Houston) have different state-approved delivery fees. These regional charges are factored into your overall cost per kWh.

