Simulate the change in energy supply from mainly fossil and nuclear energy to renewable energies Demonstrates how big projects work How economy, ecology and society are connected How scientists can contribute to changes in society and policy The used simulation can be seen as a serious game. It´s a landscape in the year 2013 where people are using mainly fossil and nuclear energy. Aim of the game is to substitute all fossil and atomic power plants with renewable energies until year 2022. Additional challenges are to ensure a continuous power supply, the satisfaction of the citizens and public finances. Learners have to invest in building of sustainable power plants, citizens’ information and research in new technologies, power saving campaigns etc. The success is measured by social, ecological and economical factors.