Comment by tfehring

Natural gas, not coal. From Wikipedia [0], "The electrical energy generation mix in 2024 was 40.7% natural gas, 31.8% coal, 15.5% nuclear, 4.5% solar, 3% wind, 2.9% hydroelectric, 1.4% biomass (including refuse-derived fuel), and 0.2% other." The new generation capacity being added is 1.4 GW natural gas and 1.1 GW solar [1]. New coal plants aren't economical under any reasonable market assumptions anywhere in the US.

[0] https://en.wikipedia.org/wiki/List_of_power_stations_in_Wisc...

[1] https://www.wpr.org/news/we-energies-add-3gw-electric-grid-d...