DONG Energy has declared option for a second wind turbine Service Operation Vessel with Norwegian-based shipping company Østensjø Rederi requiring the construction of a newbuild vessel. The newbuild will be...

Norwegian marine services group Østensjø Rederi AS has christened their new offshore construction vessel, Edda Freya, featuring a hybrid diesel-electric system powered in part by a lithium ion battery. The...

Finnish engine manufacturer Wärtsilä reports today three new escort tugs under construction for Norwegian tug operator Østensjø Rederi will feature their company’s dual-fuel (DF) engines integrated with a customized gas storage and...

This ain’t no Prius. The newest addition to Haugesund-based Østensjø Rederi’s fleet carries a very unique hybrid power system based around a matrix of sophisticated lithium batteries from Vancouver-based Corvus Energy.  Built...