The United States reached a historic milestone as renewable energy sources produced more electricity than fossil fuels for the first time in a full month. • Renewable sources included solar, wind, hydro, and biomass. • Renewables generated 50.8% of total U.S. electricity in March 2025. • Fossil fuels (coal, oil, and natural gas) fell below half of total generation. • Rapid growth in utility-scale solar and wind farms drove the shift. • Energy storage improvements helped stabilize renewable outpu