Swedish floating wind power technology outfit SeaTwirl has received government go-ahead for installation of a prototype of its innovative vertical-axis design – which features ‘built-in’ energy storage – in the North Sea off Norway.

The company’s 1MW S2X model will be moored for testing some 700m offshore of the Bokn municipality, north of the oil city of Stanger, on the west coast of the Nordic nation, in water depths of 130 metres.