Copper conducts electricity and heat very well which makes the metal an essential raw material in building communities and modern economies; 65 per cent of all copper produced around the world today is used to generate and conduct electricity. It is an incredibly important metal in the transition to alternative energy sources such as solar, wind and hydroelectric that need large amounts of copper both to generate electricity and transfer it over long distances with as little energy loss as possible. The supply of copper is thus one of the most important factors for effective energy transition.