Published
September 10, 2025
Writer
Brianna Sanwar

How Texas Keeps the Lights On

If you're operating a business in the Lone Star State, understanding how ERCOT works is a smart move to managing your energy costs effectively.

When it comes to energy in Texas, one name dominates the conversation: ERCOT.

If you're operating a business in the Lone Star State, understanding how ERCOT works is a smart move to managing your energy costs effectively. Let’s get started.

What Is ERCOT?

ERCOT stands for the Electric Reliability Council of Texas, and it’s the organization responsible for managing the flow of electricity for about 90% of the state’s power needs. It acts like a traffic cop for electricity, directing supply and demand to avoid congestion, blackouts, and costly detours.

ERCOT is a unique player in the U.S. energy landscape. Unlike other regions that fall under federal jurisdiction, ERCOT is largely independent, with its own set of rules, market operations, and challenges. It reports to the Public Utility Commission of Texas (PUCT) and the Texas Legislature (not the Federal Energy Regulatory Commission (FERC)).

Where Does ERCOT Operate?

ERCOT oversees a massive footprint that covers about 75% of the state’s land area and serves over 26 million Texans, including homes, businesses, industrial sites, schools, and hospitals. Its reach spans major cities like Dallas, Houston, Austin, and San Antonio, and supports one of the fastest-growing state economies in the country.

If you're a commercial energy buyer in Texas, you're almost certainly within ERCOT's territory.

How ERCOT Keeps the Power On

Behind the scenes, ERCOT manages a complex web of supply and demand. Its primary responsibilities include:

  • Balancing real-time electricity supply and demand on the grid

  • Running competitive energy markets where power is bought and sold

  • Scheduling generation and transmission resources
  • Managing reliability in extreme weather events, like the summer heatwaves and winter storms Texans know all too well

What makes ERCOT unique, and perhaps controversial, is that it operates as an “energy-only” market. Generators get paid only for the electricity they produce, not for the capacity they could provide. This creates price volatility, especially during tight supply events, which can lead to unpredictable energy costs for your business.

Why Does ERCOT Matter to Your Business?

Texas may be known for wide-open spaces, but in the energy world, ERCOT is one of the tightest markets in the country. With rapid population growth, increasing data center demand, and frequent weather extremes, ERCOT customers are navigating more uncertainty than ever before.

For businesses, that means:

  • Prices can spike quickly, sometimes within just a few hours.

  • Contract timing matters. Locking in a contract rate before a demand surge might save your business money.

  • Energy procurement isn’t a set-it-and-forget-it task. It requires an active, ongoing strategy.

Understanding how ERCOT works empowers your business to act instead of react. It helps you make smart, proactive energy decisions based on market signals, instead of gut feelings.

Smarter Energy Buying for Businesses

At Arise Energy, we help businesses across the nation turn the complexities of the power markets into a competitive advantage. We monitor market shifts, optimize contract timing, and offer clear recommendations based on your usage and goals.

Whether you’re renewing a contract, expanding locations, or simply trying to make sense of your bill, our team is here to help you make confident, informed decisions.

Let’s Talk Power Market Strategy

Is your energy plan ready for the next market shift? Reach out to Arise Energy today and let’s build a strategy that puts your regional power market to work for your business.

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