Texas Winter Grid Failure

Setting the scene

Texas operates most of its electric grid separately from the rest of the United States through ERCOT, limiting how much power it can import during emergencies. Before 2021, experts had warned that power plants, gas systems, and grid infrastructure were vulnerable to severe cold, but winterization was uneven. Winter Storm Uri brought unusually low temperatures, high demand, and frozen equipment across the state.

What happened

In February 2021, power generation failed from natural gas, coal, nuclear, and wind sources while demand for heating surged. ERCOT ordered rolling blackouts to prevent total grid collapse, but many outages lasted for days. Millions lost power and heat, water systems failed, pipes burst, and people died from hypothermia, carbon monoxide poisoning, fires, and medical disruptions.

Why it still matters

The crisis exposed weaknesses in deregulated electricity markets, fuel supply coordination, weatherization, emergency communication, and political accountability. It led to reforms, investigations, lawsuits, and ongoing debate over whether Texas had done enough to protect the grid. Memorable detail: wholesale electricity prices hit the $9,000-per-megawatt-hour cap, producing enormous bills and financial chaos for some utilities and customers.

Background

The 2021 Texas power crisis occurred when Winter Storm Uri froze energy infrastructure and left millions without electricity during extreme cold.