The hydrogen can then be stored and fed to fuel cells that control a reaction with oxygen in air to re-create electricity. When powered by renewable energy, the only byproduct of this process is water, making it a substantially cleaner technology.
Hydrogen economy
When extracted hydrogen is combined with oxygen in a fuel cell, a flow of electrons is created, resulting in electricity that can be used for multiple applications—including powering fuel cell vehicles. Hydrogen can also be stored and used as renewable energy for seconds, minutes, weeks, or even months as a greener energy supply.
