Also, I don't have the numbers nearby, but I believe gas is mostly used for heating in Germany. Your heating system is outdated - you just didn't care because of the cheap gas from the east.
Stop blaming the technologies that can actually fix this.
Of course, one most realize that Schröder left the office having signed Nord Stream I only days prior and then immediately proceeded to join the Gazprom Board of Directors as well as serving as Director for the Nord Stream I Ltd. company and later Nord Stream II Ltd. That might be a minor case of corruption, possibly. Who knows, courts haven't decided yet.
The Merkel cabinet I-IV never really pushed to change it, since gas was working fine for the status quo.
A good example is the plot of installed wind capacity as a function of time here https://www.wind-energie.de/english/statistics/statistics-ge...
You can see there are a couple of bursts of installed turbines and then it slumps down again. The curve very closely correlates with the party in power for the Economy ministry.
But yes, Germany didn't follow the same growth as say China because the political right managed to stifle offshore wind a decade ago. Very bad move for multiple reasons.
Expensive electricity is driven by the way Germany financed the subsidies for renewables. And those subsidies were paid for by consumers, industrial electricity prices are / used to be rather low in Germany. This pricing structure will change so, if memory serves well.
As already stated, gas isn't burned for electricity in Germany, coal is. The reason why coal is so cheap is way too cheap CO2 certificates. Generally a bad thing, because gas would be better for the climate than coal, the unintended postive side effect is a lower impact of the current gas crisis on electricity generation.
https://www.klimareporter.de/strom/deutschland-fackelt-gas-a...
https://www.makawind.de/index.php?show=news
https://de.m.wikipedia.org/wiki/Liste_von_Pumpspeicherkraftw...