WTF about your understanding of the German power grid, I would say.
Germany is not in a position to continuously meet its own electricity needs, but is dependent on daily aid deliveries of electricity from abroad. The electricity needs of industry cannot be met in a market-oriented manner, but taxpayers have to spend additional money so that industry can continue to produce at all.
The absurdly high prices for electricity in Germany prevent any competitiveness. Ignoring all of this can only be described as WTF – what country do you actually live in?
What you call "aid from abroad" is generally called a functioning wide area synchronous grid (https://en.wikipedia.org/wiki/Wide_area_synchronous_grid) which covers most of the EU plus some Balkan states, Moldova, Ukraine, Turkey and the northwestern corner of Africa. So Germany can sell power to others when renewables are generating more than it needs (which is often), and import power, not necessarily because it couldn't produce it, but because importing it can be cheaper than e.g. starting up an additional backup plant. This is nothing special and has been working reliably for decades.
> The electricity needs of industry cannot be met in a market-oriented manner
Do you care to elaborate? AFAIK, the EU electricity market is... a market?
The design is debatable, as always with these things. Perhaps you wanted to say something precise about subsidies?
One important consideration is that Germany profited from cheap Russian gas, and continued building Nord Stream 2 post Russian operations in Ukraine in 2014. This is a bet that a huge geopolitical risk would not actualize, which it did in 2022.
Energy scientist in Germany here. Germany could fully supply it's national grid with German energy production. We just don't do it because it's cheaper to buy i.e. heavily subsidized nuclear power from France, or other sources. In the end, it's all markets across the whole EU - by design. Why should it not be, the European energy grid is interconnected for a reason.