Fossil fuels fall below 50% of U.S. electricity for the first time since the 1800s
In a major milestone for climate action, the U.S. hit a new record low for fossil fuels in the electricity mix last month as solar and wind reached a record high, according to new data from global energy think tank Ember. In March 2025, fossil fuels accounted for less than 50% of electricity generated, for the first month on record. The shift meant that clean sources generated more than half (50.8%) of U.S. electricity for the first month on record.










