Cologne-based energy supplier SAUBER ENERGIE launches new green electricity tariffs with the Grüner Strom-Label / #EnergiewendeMachen: On the way to the energy turnaround with the green electricity label of environmental associations / Birthday celebration in Berlin: toasting 25 years of joint work for the energy turnaround / For a coffee with... Melanie - Head of Communications and Marketing / Fancy the energy transition? We are hiring!