Germany IS suffering from high energy prices, but renewables are only a small part of the problem.

It was a mistake to shut down the working nuclear power plants, and that also coincided with the abrupt loss of all (cheap) gas from Russia. Now, the country imports expensive LNG and renewables generate something like 80% on a good day - but thanks to merit order, the most expensive form of power generation sets the price and that is gas.

It doesn't help that thanks to shifts in industry, the grid has to be re-developed north->south instead of west->east and south-north. NIMBYism is rampant in Germany, so new high-voltage lines can take decades. Meanwhile, renewable capacity has to be shutdown if the transmission capacity of the grid cannot keep up during windy, sunny days.

Things are slowly improving what with grid-scale batteries coming online, and one major north-south connection being done. But yeah, it's going to take years still, and if our current governing coalition have their say, it's going to take even longer.