The Green Party has published some ideas on the first 100 days of a new government with their participation. These are not yet official, but Sueddeutsche Zeitung describes them in a short article (in German).
One idea is concentrating all matters relating to the German Energy Transition (Energiewende) into one new ministry, headed by a member of the Green party.
Right now one of the problems with the Energy transition is that some of the competences are with the Environment Minister and others with the Economy Minister, which makes coordination more difficult.
I think this is an excellent idea. I sure hope we will see the Greens in the next German government. It would give renewable energy in Germany a strong boost compared to the last couple of years under a CDU and FDP government.