Wärtsilä announce the world's first hybrid propulsion solution for fish farming industry

The new salmon processing and transportation vessel for Hav Line AS, Norway, is the worlds first vessel of its kind with a hybrid/battery solution. (Image source: Wartsila)

Wärtsilä has been contracted to deliver the ship design for a new processing and transportation vessel to be built at the Balenciaga shipyard in Spain on behalf of Hav Line AS of Norway


In addition to the design, Wärtsilä will also supply an integrated solution comprising a 10-cylinder Wärtsilä 31 main engine, auxiliary engines, propulsion machinery, the propulsion remote control system, and the electrical and automation system. The delivery of the Wärtsilä solutions will be during autumn 2017 and the vessel is scheduled for delivery in summer 2018. The order was recorded in Wärtsiläs order book in the fourth quarter of 2016.

Notable environmental gains are made possible by a Wärtsilä hybrid propulsion solution supported by batteries, which results in very low emission levels. This is the worlds first processing and transportation vessel for the fish farming industry to utilise this solution. By absorbing most of the engines load fluctuations and vessel load variations through batteries, the engines can be operated close to its optimum design point, thereby providing the highest level of efficiency, which in turn minimises the exhaust emissions.

The design is tailor-made to the customers specifications. During the development phase of the project, Wärtsilä acted as the owners consultant to ensure an environmentally sound and functionally effective solution. The vessels hybrid propulsion machinery has the PTI/PTO (power take-in/ power take-off) powered by batteries, and is combined with the very fuel efficient Wärtsilä 31 main engine. The environmentally sustainable hybrid battery configuration is new for this type of vessel.

"The fish farming industry, like other marine industry sectors, is seeking better ship designs and greater efficiencies that reduce overall operating costs and lessen the environmental impact. Wärtsilä is proud to have been selected for this project that introduces the worlds first hybrid propulsion system for this kind of vessel," says Riku-Pekka Hägg, Vice President, Wärtsilä Ship Design.

"We very much appreciate Wärtsiläs support in designing a vessel that meets our operational and environmental requirements," says Jon Hinder, Chairman of the board, Hav Line Gruppen AS.

Wärtsiläs integrated solution includes the initial, basic, and detailed  ship design, a 10-cylinder Wärtsilä 31 main engine, a Wärtsilä 2-speed gearbox, a Wärtsilä controllable pitch propeller (CPP) including the HP propeller nozzle, stern tube seals and bearings, the Wärtsilä ProTouch propulsion remote control system, two 9-cylinder Wärtsilä 20 auxiliary engines, and the electrical and automation system including a hybrid battery PTI/PTO package.

The Wärtsilä 2-speed gearbox enables lower propeller speeds and optimised propulsion efficiency during transit, while still using the main engine to power the shaft alternator. This results in lower fuel costs, both for production and production of electrical power. The custom designed CPP propeller is of Wärtsiläs successful G-hub configuration and is combined with the HP nozzle. This provides maximum reliability and efficiency and is a popular choice for vessels with this operational profile.