Where you live in the Lone Star State dictates more than just your favorite high school football team; it entirely controls how your electricity is delivered and how much you pay. While Texas is famous for its deregulated energy market, many residents do not realize they actually deal with two distinct entities: the retail electric provider (REP) they shop from, and the Transmission and Distribution Service Provider (TDSP) that physically delivers the power to their home.
What is a TDSP and Why Does It Matter?
Often referred to as the local utility company, your TDSP owns and maintains the physical poles, wires, and meters in your region. Regardless of which retail provider you choose to buy your electricity from, your local TDSP is responsible for fixing downed power lines after a storm and reading your meter. There are four major investor-owned TDSPs in deregulated Texas: Oncor (serving Dallas-Fort Worth and surrounding areas), CenterPoint Energy (serving the Houston metro area), AEP Texas (serving South and West Texas), and Texas-New Mexico Power (TNMP, serving various pockets across the state).
How TDSP Charges Affect Your Electricity Bill
When you browse plans to compare Texas electricity rates, the prices you see are heavily influenced by your regional utility. Every TDSP charges regional delivery fees, which are approved by the Public Utility Commission of Texas (PUCT). These charges are passed directly to the consumer and are bundled into your monthly bill.
Understanding Usage Blocks and EFLs
Average prices per kWh are typically calculated based on standard monthly usage blocks of 1,000 kWh or 2,000 kWh. These estimates include both the fixed monthly charges and the variable per-kWh delivery fees set by your regional utility. Keep in mind that electricity service offers can be fixed or variable. All comparison rates are gathered directly from each provider’s Electricity Facts Label (EFL) for comparison purposes only. Because utility delivery charges change periodically, rates are subject to change and are only finalized when your service agreement is completed.
Navigating the Texas Energy Grid with BulbOne
Understanding utility zones can be confusing, especially since not all cities in Texas have electric choice. Municipal utilities and electric cooperatives remain regulated, meaning residents there cannot choose their provider. As an independent platform, BulbOne serves as your expert guide to exploring your power to choose the best, most cost-effective, and reliable cheap electricity plans in Texas. Please note that our platform is an independent resource and is in no way associated with PowerToChoose.org (which is operated by the PUC 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.
Can I choose my own TDSP in Texas?
No. Your TDSP is determined solely by your physical location. While you can choose your retail electric provider, the utility company that maintains the physical grid in your area remains the same.
Why do electricity rates differ between Houston and Dallas?
Even if you select the exact same retail plan, the final rate per kWh will differ because CenterPoint (Houston) and Oncor (Dallas) charge different regional transmission and distribution fees, which are factored into your overall rate.
Are TDSP fees fixed or variable?
TDSP fees include both a fixed monthly charge and a variable charge per kWh. These rates are updated twice a year with approval from the Public Utility Commission of Texas and apply to all consumers in that utility zone.
