ERCOT Explained: Why Texas’ Power Grid Is Isolated from the U.S.
Understand the history and technical reasons behind ERCOT’s independent power grid, including the tradeoffs in reliability, support, vulnerability, and cybersecurity.
The Texas power grid, managed by the Electric Reliability Council of Texas (ERCOT), operates a unique system: it is almost entirely independent from the two major U.S. power grids. This isolation is not accidental; it is a fundamental design choice rooted in history and regulation. The core reason for this separation was intentional: to keep the Texas grid under state jurisdiction and evade the heavy hand of federal regulation. This creates a unique tradeoff between state control and external vulnerability.
