It is already in place since Jan 2017 I think. Energieeinspeisegesetz is the relevant keyword. But this redesign of the regulation is really complicated with a

It is already in place since Jan 2017 I think. Energieeinspeisegesetz is the relevant keyword. But this redesign of the regulation is really complicated with a lot of different cases and exceptions. No concise summary in english I'm afraid. edit: fixed typo