Until now renewable energies were considered one of the great hopes of German industry. State subsidies also guaranteed healthy profits for solar energy firms. But a slump in sales along with fears that the new German government may not follow through on pledges to continue to invest in renewable energies have sent shock waves through the industry.MADE IN GERMANY paid a trip to the state of Brandenburg,where green energy has seen particularly generous support from the state,to get a sense of the mood there. A report by Elisabeth Pongratz.