So when you said "currently" you actually meant "right at this moment". Because currently (as is "this year") about 50% of Germany's electricity generation comes from renewables.
Right. But if you want to look at 12 months (fair enough) then 50% being dirty electricity generation is nothing to be proud of is it? It's still one of the dirtiest grids in the planet with an average >500gCO2/kWh. And it's average coal production over that time appears to be 21.2GW. So if over a 12 month period then if Germany had retained it's nuclear it would replace MORE than half of it's fossil fuel produced electricity. Even better.