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What portion of all U.S. energy consumption is provided by wind energy?

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During 2021, wind provided 3.4% of all U.S. energy consumption. Because wind speeds fluctuate and are sometimes not strong enough to drive turbines for days at a time, most wind power capacity must be backed up by other energy sources. As the amount of wind capacity rises in a given region, so do the costs and challenges of backing up its unreliable energy output. Thus, reliance on wind as a major energy source can contribute to electricity blackouts during dangerous weather conditions. These scientific realities limit wind energy production in the U.S. and throughout the world.

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