Wind energy production dropped off sharply as cold moved in.

federal data from the U.S. Energy Information Administration indicate that, of the state's major energy sources, wind experienced the sharpest drop-off in energy production The plunge in temperatures led to both a surge in heating demand and the concomitant power outages. Data from the EIA show that at nearly the exact same time demand was surging and energy grids were buckling, wind energy experienced a catastrophic drop-off: In the evening of Feb. 14, wind in the state was producing just over 9,000 MWh of energy, while 24 hours later it was putting out less than 800 MWh, a roughly 91% decrease in output. Virtually every other energy industry in the state also saw decreased output over the same time period amid record demand, yet none saw as steep a decrease as did wind power.

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