The share of coal generation in the US mix has nearly halved in the last five years, falling from 19.7% in May 2021 to 12.2% in May 2026. In contrast, solar power’s share of the mix more than doubled from 5.4% to 12.8% over the same period. Solar overtaking coal follows another clean power milestone reached in March, when renewables collectively generated more electricity than gas for the first time in the US. Taken together, these milestones underscore the growing role of clean power in the US ...