Fuel cells convert chemical to electrical energy. Engines and turbines with generators do the same but there is a lot more interest in fuel cells. The media report that the latter have a much higher efficiency than engines and turbines and that the future of energy supply is unthinkable without them. In cars, houses and wherever energy is required, they will be found in future in the same places and numbers as car engines and singlestorey heating are found today.

Website: http://www.geocities.com/fuelcellkit/