Learn how to analyse energy transition cases from technological, legal, economics, spatial, and social perspectives. Since the discovery of fire, mankind has used various energy sources to aid our development. The energy system has been continually changing, as the economy and technology progress. Today, energy systems are confronted with pressing global challenges: climate protection; economic and social development; poverty eradication; adequate food production; health for all; and the conservation of ecosystems, peace and security. A major transformation – an energy transition - is required to address these challenges.