The transition occurred as a result of increased renewable capacity and coal’s years-long decline. Wind was the major source of renewable power, with capacity increasing from 133 gigatonnes in 2021 to 141 gigatonnes the following year. Hydro came in second, followed by utility-scale solar, biomass, and geothermal energy. Coal’s contribution fell to 20% as a result of the shutdown of certain facilities and the decreased usage of others. Nuclear power has been generally stable, however the closing of Michigan’s Palisades power plant reduced it to 19%.
