Geothermal energy for electric power production has a low profile yet is significant in the current and potential energy mix for a number of countries. It has also been described as the most reliable of the renewable energy sources, above weather-dependent wind, solar and hydropower.
The use of food crops for the production of fuel is somewhat controversial. But cellulosic ethanol production facilities increase the utilization of plant waste, reduce competition for food crops and provide a substitution for fossil fuels. And nickel-containing alloys are central to this game-changing revolution.