What's the difference between NRG, Reliant and CenterPoint? How the Texas power grid works.
Claire Hao | Source: Houston Chronicle | Posted 03/15/2025

The power grid is a network of power plants that generate electricity and power lines that deliver it. Texas’ unique grid has been under heavy scrutiny since the February 2021 winter storm, when millions lost power for days and hundreds died.
AI generated summary
The Texas power grid operates through a network of power plants and transmission lines, with key players including NRG Energy, Reliant Energy, and CenterPoint Energy. Retail electric providers (REPs) like Reliant compete to offer electricity plans to consumers, purchasing power from generators on the wholesale market managed by the Electric Reliability Council of Texas (ERCOT). CenterPoint, as the primary transmission and distribution utility in Houston, is responsible for maintaining the power lines that deliver electricity to homes and businesses.
ERCOT plays a crucial role in balancing electricity supply and demand, ensuring that the grid operates smoothly. Following the 2021 winter storm that caused widespread outages, the grid's reliability has come under scrutiny, especially with the increasing demand from new artificial intelligence data centers. The deregulation of Texas's electricity market in the late 1990s aimed to foster competition among providers, but it also complicated the structure of the industry, separating generation, distribution, and retail functions.
Link to Original Article
Please find the link to the full article below. (Please note that content provider might require a paid subscription)
Source Link: https://www.houstonchronicle.com/business/energy/article/texas-power-grid-market-explained-20184641.php
06/12 - 9:00 AM
ERCOT - RMS Meeting06/12 - 9:30 AM
ERCOT - Special TAC Meeting - Webex Only06/12 - 1:00 PM
ERCOT - Large Load Workshop06/13 - 9:30 AM
06/12/2025
06/12/2025 Special TAC Meeting06/12/2025
06/12/2025 OTWG Meeting06/12/2025
06/12/2025 RMS Meeting06/12/2025
Texas PUC Accepting Comments On All Electric Market Rules, Under Customary Review For Changes, Re-adoption06/12/2025
The US is seeing a solar manufacturing surge. Can it survive a loss of energy incentives?APPLICATION OF EL PASO ELECTRIC COMPANY FOR AUTHORITY TO CHANGE RATES - (184 filings)
CY 2025 RETAIL PERFORMANCE MEASURE REPORTS PURSUANT TO 16 TAC 25.88 - (98 filings)
BROKER REGISTRATIONS - (82 filings)
APPLICATION OF ENTERGY TEXAS, INC. TO AMEND ITS CERTIFICATE OF CONVENIENCE AND NECESSITY FOR THE SETEX AREA RELIABILITY PROJECT IN JASPER, MONTGOMERY, NEWTON, POLK, SAN JACINTO, TRINITY, TYLER, AND WALKER COUNTIES - (54 filings)
YEAR-END 2024 ELECTRIC UTILITY EARNINGS REPORTS IN ACCORDANCE WITH 16 TAC § 25.73 - (46 filings)
PROJECT TO SUBMIT EMERGENCY OPERATIONS PLANS AND RELATED DOCUMENTS UNDER 16 TAC § 25.53 - (45 filings)
APPLICATION OF CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC FOR DETERMINATION OF SYSTEM RESTORATION COSTS - (41 filings)