Rolls-Royce has been commissioned to provide equipment for a new offshore salmon farm and a hybrid/LNG live fish carrier (wellboat) designed by NSK Ship Design for Nordlaks.
Rolls-Royce will supply six TT1100 tunnel thrusters to the 385m long and 60m wide offshore ‘Havfarm’ salmon farm to maximise efficiency. These will be used to circulate water both inside and underneath the cages in which the fish stocks are held.
Ottar Ristesund, Rolls-Royce, SVP propulsion sales – marine, said: “This is the first time we will be supplying thrusters for this kind of use. Normally, they are used for ship propulsion, so it is fascinating to see that our technology is being applied in new areas.”
The Havfarm project, announced in February, has been designed to produce salmon further offshore than has been possible so far and will take up a stationary position in an area southwest of Hadseløya in Nordland county.
LNG engines
Nordlaks’ new, environment-friendly wellboat for transporting live salmon from the offshore fish farm to the onshore processing facility will be fitted with four Rolls-Royce LNG engines, as well as the company’s propulsion and Dynamic Positioning (DP) system.
Capable of carrying over 600t of live salmon, the wellboat will substantially increase Nordlaks’ transport capacity.
“By choosing a hybrid solution that includes our well-proven Bergen gas engines and the energy-efficient Promas propeller system, Nordlaks and NSK Ship Design have taken a long-term perspective with regard to both environmental and financial performance,” explained Ristesund.
“In addition, they have specified a propeller solution that provides the best possible manoeuvrability – whether the vessel is serving traditional fish farms in Norway’s fjords or the new installations located in rougher waters offshore. Combined with the DP system, this means the vessel produces low emissions and will run efficiently for many years.”
The fish farm is being built at the CIMC Raffles yard in China, while the wellboat will be built at the Tersan shipyard in Turkey.
