Comment by ipdashc

PJM probably isn't a great example, it's been famously slow to approve new generation, hasn't it? And the rates aren't exactly super cheap.

We shouldn't get rid of coal without having something to replace it (ideally nuclear/solar/wind, but realistically probably gas), but I think the point was just that nobody would build a new coal plant today or keep them running for longer than they need to. They're inefficient and fairly expensive.