Where is the big increase in coal? If you look at the stats coal use is down.
https://www.cleanenergywire.org/sites/default/files/styles/g...
What is not well known in the Anglosphere is that the German nuclear phase-out was actually legislated around 2000, and not in 2011 after Fukushima.
In 2011 Merkel extended the phase-out end date by ~10 years, which was democratically very unpopular. 3-months later Fukushima happened, and the phase-out went back to an end-date similar to the original.
More charts here: https://www.cleanenergywire.org/factsheets/germanys-energy-c...