And natural gas.
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Oddly, NG is not considered a core energy source - I don’t know why.
Interesting. We’re producing more electricity with natgas than with coal and nuclear combined.
https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_1_01
Maybe because so much natgas generation is via combined cycle peaking plants, and coal and nuclear are more baseload generation. Core = baseload generation, perhaps?