Irish renewables start-up Simply Blue has launched plans for a pair of gigascale floating wind projects in Sweden, the latest developer to bid into the fast-emerging Baltic Sea deepwater play.

The arrays, the 2GW Skidbladner southeast of Stockholm and the 2.75GW Herkules of the island of Gotland, would be water depth of some 125-150 metres at sites where wind speeds average over 9.7 metres per second.