> The european grid is interconnected so it's basically all fungible.
This is the point I'm making. It's not a counter point, it's exactly the point I'm making. Sweden "has" a bunch of coal plants, just located in Germany and Poland. This allows Sweden to skip planning for exactly what renewable is bad at.
Otherwise this is like saying "antibiotics are completely unnecessary because 99.99% of the time you don't need them, and when I do need them I just get them from a pharmacy". Right… so you do need and rely on them.
But Sweden also has a geographic electricity transportation problem. Electricity generation exists where (most) consumers are not. And this is also due to the MUCH more limited flexibility of renewables, especially hydro. Could easily be cheaper to get coal power in the south instead of hydro "shipped" from way up north. Hell, sometimes electricity in the north has a negative price.
Sweden is a good local example of why we also can't just power all of Europe from some solar panels in Sahara. Except instead it's hydro way up north.