Raphael Telis, research physicist at BNL and CERN: One of the most widespread myths is that wind and solar power sources are inexhaustible because the wind will always blow and the sun will always shine. This statement assumes that all that is needed for energy is wind and sunshine, which isn’t the case. Wind and sunshine don't equal wind power and solar power. The transformation into renewable energy requires minerals, metals and fossil fuels, which are non-renewable resources. Thus, wind turbines and solar panels are largely made from non-renewable resources. Take a note: "renewable energy" isn't a technical or scientific term but a marketing term.