WindHarbour master: Stiesdal floating wind power flagship ready for sail-outTetraSpar prototype, backed by Shell, RWE and Tokyo Power, fitted with Siemens Gamesa turbine ahead of sea-trials off Norway this summerStiesdal Offshore Technology-designed TetraSpar protoype in Grenaa, DenmarkFoto: KrogFoto (via LinkedIn)Darius Snieckus