Solar generation beats coal in the US for the first time ever
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What just happened? Solar power crossed an important threshold in May, as a rapidly expanding fleet of photovoltaic projects supplied more US electricity than coal for the first time on record. New data from global energy think tank Ember shows that US solar generation climbed to 45.5 terawatt-hours in May 2026, the highest monthly total ever recorded and a 17% increase from May of last year. That output gave solar 12.8% of all US electricity for the month, just enough to edge ahead of coal at 12.2%. For a technology that only recently accounted for a small share of the mix, it has now become a central part of the system.
Five years make the shiftlook even sharper. In May 2021, coal supplied 19.7% of US electricity, while solar accounted for just...
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