In 2024, the Norwegian shipping company Sea-Cargo acquired the Sietas cargo ships “Misida” and “Misana” from Godby Shipping. They are now being modernized.
The two RoRo ferries are now to be upgraded with a range of technologies during a shipyard period in Lithuania this summer, which should reduce fuel consumption by up to 50%.
Among other things, three new rotor sails from Norsepower will be installed. The cargo ship “SC Connector” from Sea-Cargo has already been equipped with two 35 m long, tiltable rotor sails since the end of 2020.
In addition, the two 163.90 m long and 23.4 m wide sister ships will receive new, optimized controllable pitch propellers from Kongsberg, which are specially designed for a lower speed of 14 knots to improve fuel efficiency.
The ships will be fitted with NOx scrubbers from PureteQ for exhaust gas aftertreatment. In addition, upgrades to the two Wärtsilä main engine and control systems will be carried out by the manufacturer, including advanced energy saving features and bridge equipment to compensate for blind sectors.
Sea-Cargo roofs over the weather deck
The previously open weather deck will be roofed over to increase the capacity below deck, on which solar modules will then be installed over an area of 1,600 m². In this context, the ships will be equipped with battery and frequency converter systems, which are fitted with an energy package with shore power and peak load capping. A new energy management system from Smart Automation will also be installed, integrating rotor sails and battery technology for optimum energy efficiency.
Since 2020, the two sister ships “Misida” and “Misana” have been part of the Sea Cargo system, which connects the west coast of Norway with mainland Europe, primarily Rotterdam, as part of a charter agreement.
Even after the above-mentioned conversion work, which will take place in the second and third quarter of this year at the Western Shipyard in Klaipeda, the services will continue, but the ships will then be given the new names “Trans Hav” and “Trans Sol”. The new ship designs come from Marine Design & Consulting, while Western Baltic Engineering and Naval Tec are responsible for project development.
The two ice-strengthened sister ships belong to ship type 175 from the former Sietas shipyard in Hamburg-Neuenfelde, of which only these two ships were built. The two DNV GL-classed vessels are designed to transport paper, palletized freight, trailers and containers. For this purpose, they have a capacity of 2,155 loading meters for rolling cargo and 484 TEU, including 48 reefer container connections. (CE)
