We are using virtually no coal now in 2019 because it has been replaced with gas. On two days in June there was no wind, and all it could muster well below 1% of demand. Even so no coal was used, but gas was producing more than 50%. You can watch the grid every day now and see as wind goes up, gas goes down, and vice versa.,(reply>), this whole thing is really really silly, coal may not be ideal, but a heck of a lot better than wind turbines.