Desc: Energie 2050: Directed by Claudia Giczy Hefner, Peter Giczy. With Karl Markovics. Our energy system is on the threshold of a fundamental change. 50 years ago the foundations of our current energy supply were laid and now the time has come to set the course for the next 50 years. By 2050 our yearly energy requirements will have more than doubled as more and more people use more and more fuel.