Does the Bavarian power grid also routinely go down because they don't invest in it and at the same time also refuse to add interconnects with other regions?
Not sure, but I think the grid integration is international with significant connections to e.g. France, rather than federal states within DE having their own thing?
More that the stereotypes people have of Germany/USA are really of Bavaria/Texas (beef, guns, lederhosen), more (small c) conservative, and there are occasional mumbles and grumbles of independence but they don't have any substance to them.
At least, that's what it seems. My grasp of German means there's a game of telephone between reality and my understanding of Bavaria, and I've never even been to Texas so I'm judging them by what people say online.
