Potentially due to a shortage of electricity from cheaper searches. There is also political pressure to keep certain coal fired power plants open.

https://apnews.com/article/tennessee-valley-authority-coal-p...

Coal, the most expensive energy source?

That's funny, is marginally more expensive than natural gas because natural gas is a byproduct of oil extraction.

Coal is vastly cheaper as a 24x365 source of power than anything but hydro and natural gas.

Solar is cheap and abundant during daytime. It has zero power at night. Coal/gas/nukes are more expensive, but runs 24/7. Batteries are getting cheaper, but are still not that cheap.

AI/Data centers need power 24/7.

Coal is expensive, but it's still cheaper than nuke and peaker thermal. If you want power fast and your state and federal government aren't worried about a few pesky environmental regulations you might see coal come back. Part of coals attraction is that it takes a lot of people to run a coal plant, and people need jobs. Those people vote and politicians like votes.