alt Hacker News> (which of course shoots it upwards, that's the "doubling in late 2022" you mention).
i guaranty you that my electricity costs were 22c in mid-2022, jumped to 47c in either late 2022 or January 2023, and just went up from 47c to i don't know what in February (i got the notification of an increase but didn't bother logging in to see the new prices).
Sounds like you didnt sign a contract with an electricity provider and therefore are put in a fallback ("Grundversorgung") contract with the grid provider, which in 95% of cases is a bad deal for normal consumers. You are free to make this choice, but if it bothers you enough to complain about it, it should bother you enough to invest 30 minutes and sign a contract: https://www.verivox.de/stromvergleich/