Deployment of the 10-metre-diameter turbine, for provincial utility Nova Scotia Power, was the most recent milestone in a development programme at the Irish company that began with a 35-kilowatt (kW) prototype. It is now fast progressing towards multi-megawatt arrays of the machines off France, the UK and the west coast of the US.

OpenHydro’s turbine is one of the frontrunners in the tidal-power race.