Unscheduled repairs pushed Texas power plants to the brink last week, and the state's electrical grid struggled to cope with the surging demand for electricity. Thousands of megawatts of capacity were knocked out due to equipment problems. Experts blamed a heatwave for both boosting demand and increasing the strain on plant equipment. "All the electrical components are running as hard as they can right now," said Kent Coleman of the Electric Power Research Institute. "There's a greater chance of overheated motors, cooling towers not working at the same efficiency as in cooler weather."
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