U.S. Electricity From Fossils Fuels Dips Below 50% for the First Time Ever

For the first time in history, fossil fuels supplied less than half of the United States’ electricity generation for an entire month, according to new data released by energy think tank Ember. This milestone, achieved in March 2025, represents a turning point in the evolving energy mix of the world’s largest economy. Historically, fossil fuels—primarily coal and natural gas—have dominated U.S. electricity production. But the steady rise of renewables over the past two decades has chipped away at their dominance.…