Energy prices are higher than in many other countries here, but not super high - especially not for businesses.
The real problem is that Germany is an gerontocracy that got complacent. Literally every change, whatsoever, will find at least 50 people arguing against it, because it could slighty affect their bottom line or their view. The result is a country that ground to a halt.
This is true in the business world, politics, science, administration. There are just too many old people that are afraid to lose anything.
Our car manufacturers straight ignored anything electric until Tesla built a factory literally on their door steps, our politicians willfully sabotaged wind and solar power (where we were world leading, at the time!) in favor of coal, because coal workers are somehow 10x more important than anyone else, our administration is still using paper everywhere, everything takes tons of useless paperwork, just because fucking Annegret thinks computers are a fad, our immigration system is almost nonexistant, since “we’re not an immigration country” despite something like 25% of the people here migrated, we don’t let refugees work, despite having literally too few workers to stock shelves at Aldi for 15% above minimum wage.
As a young German, I have to say, I’m afraid this country is fucked. But not because of any grand economical failure, but because the Germans as a people are idiots - luckily we’re only killing ourselves this time.