Solar power beat coal across the United States for the month of May.
The Energy Information Administration reported that in May 2026 solar produced 95 terawatt-hours, while coal generated 93 terawatt-hours. The gap grew despite a modest rise in coal demand for heat waves, because solar installations added another 12 gigawatts of capacity in the last quarter.
The shift matters because utilities must now plan for less coal fuel and more solar intermittency. Grid operators will have to balance storage and demand‑response more aggressively, and coal‑heavy states may see tighter emissions caps.
Still, solar’s share sits at just 12% of total generation, so the headline is more a statistical footnote than a wholesale overhaul.