The short version, No. The slightly longer version, Yes but only for a short time. The UK has seen its coal usage creep back up this winter, to a consistent generation mix of around 5% of all mainland electricity. Which when you look at that 5%, it doesn't look like a lot, and it isn't. However, the UK has been slowly kicking its dependence on coal, moving away from dazzling high level of coal use, like seen in 1990 for example, where coal was up at 75% of the UK energy mix.