HOW DOES IT WORK?

Tidal power devices located at the European Marine Energy Centre test site at the Fall of Warness, in the sea just west of the island of Eday, and the Eday Renewable Energy community-owned onshore wind turbine, route their surplus electricity to a 500kW electrolyser, which generates hydrogen by splitting water.

The hydrogen is stored as compressed gas then transported on a trailer by road and sea to Kirkwall, the capital of Orkney. There it powers a fuel cell to generate clean electricity on demand.