Hydrogen is being considered as a replacement for today's fossil fuels because it is abundant, efficient, and unlike other alternatives, it offers the potential to be renewable and it produces no emissions. It can be utilized as the energy carrier for generating electrical power with hydrogen fuel cells and hydrogen combustion engines.
Within a hydrogen fuel cell, hydrogen combines with oxygen from the air to create electricity. The fuel cell can run continuously and generate energy as long as the hydrogen fuel is being supplied, and the only by-products are heat and water.
