The factory is the first of its kind to produce electricity by combining wind power and hydrogen, a completely pollution-free method. On a good windy day, which Utsira has plenty of, where speeds average 10 metres [33ft] per second, the turbines can power the whole island. Any surplus is used to break water molecules into hydrogen and oxygen. On days when the wind is weak, the stored hydrogen is used to produce electricity, either by burning it in a combustion engine or fusing it chemically with oxygen in a fuel cell, a kind of battery. The only by-product of the operation is water.
Cool! Totally infeasible for the domestic economy and administration, but cool nonetheless!
