Press Release:The technology group Wärtsilä will supply two hybrid power modules for a new escort tug being built for the Swedish port of Luleå located on the Gulf of Bothnia in the northern end of the Baltic Sea. The vessel is being built at Gondan Shipbuilders, in Asturias, Spain, and the order with Wärtsilä was booked in December 2017. When launched in early 2019, it will become the first vessel operating with the Wärtsilä HY solution.
The innovative Wärtsilä HY solution will bring notable environmental benefits, as well as operational and flexibility advantages that result in considerable economic gains. It will be capable of operating on electrical battery power when in transit. Although it is configured as a mechanical set-up, the ’hybrid diesel-electric’ mode will allow the number of prime movers utilised to be reduced to just one for various operational tasks. These include ship assist with a bollard pull of up to 55 tons, or 90 tons on two main engines in diesel-mechanical mode. A bollard pull of 100 tons will be available when in boost mode.
The vessel will be capable of being completely independent from additional charging facilities, since re-charging of the energy storage system will be automatically managed by the Energy Management System, the “brain” of the Wärtsilä HY. In addition, the installed onshore electrical connection will give the tug the flexibility to re-charge the energy storage system, even when the tug is berthed at the quay. The Wärtsilä HY product’s operational flexibility will yield significant fuel, emissions, and maintenance cost savings.
“We expect to see the Wärtsilä HY 2 hybrid power module becoming the new technological benchmark for tug propulsion systems given its clear economic, operational, and environmental benefits. The Wärtsilä HY technology opens the door to a new era in shipping, and is based on our unmatched in-house capabilities in a broad range of disciplines,” explains Giulio Tirelli, Director, Marine Engineering, Wärtsilä Marine Solutions.
