Where Data Tells the Story
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Over the past 75 years, the U.S. electricity system has shifted from one dominated by coal to one in which natural gas and renewables supply nearly two-thirds of generation.
This visualization shows annual U.S. electricity generation by source from 1950 to 2025 using data from the U.S. Energy Information Administration. It tracks output in billions of kilowatt-hours and each source’s share of the electricity mix over time.
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