As of June 10, 2026, solar overtook coal generation in the US electricity mix in May 2026, according to monthly and preliminary hourly generation data analyzed by think tank Ember. [1] Solar supplies a record 12.8% of US electricity, while coal fell to 12.2%, its fourth-lowest recorded monthly share. Solar generated an all-time high of 45.5 TWh in May 2026, exceeding May 2025 by 17% and surpassing a record set in July 2025. Coal generation hit an all-time monthly low of 39.3 TWh in April 2026. The overall share of coal generation in the US 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. This record succeeds another clean power milestone from March 2026, when renewables collectively generated more electricity than gas for the first time in the US. Together, these records underscore the growth of clean power in the US electricity mix despite the current policy environment.
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