Wärtsilä To Power Four Future-Proof Heavy Lift Vessels

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Credits: Venti Views/Unsplash

The technology group Wärtsilä will supply its hybrid propulsion system for four new heavy lift vessels being built at the Wuhu Shipyard in China, says an article published on their website.

Project cargo specialist

The vessels have been contracted by SAL Heavy Lift GmbH, a German heavy lift and project cargo specialist and part of the Harren Group, in cooperation with its joint-venture partner, Netherlands-based Jumbo Shipping.

There is an option for an additional two vessels. The order was included in Wärtsilä’s order book in December 2022.

Fossil-based marine fuels

Wärtsilä innovative hybrid system will minimise the ships’ CO2 emissions, thus supporting the marine sector’s decarbonisation ambitions.

This will therefore make these ships among the first to be prepared to operate on methanol, a clean burning sulphur-free alternative to conventional fossil-based marine fuels. They will also be the first methanol capable ships to employ a variable speed main engine.

Hybrid operations

The hybrid system also includes Energy Storage, a PTO/PTI generator and motor, a multidrive converter, and the Wärtsilä Energy Management System for controlling and optimising the hybrid operations.

Reduce fuel consumption

The Energy Storage system will be based on Lithium-Titanium-Oxide (LTO) batteries, which can handle higher amounts of deep cycles than normal Lithium-Ion based systems.

The ESS will significantly reduce the fuel consumption and/or the necessary size of the port’s electric shore connection during crane operations while also providing fuel savings at sea by reducing Engine Load fluctuations in rough seas.

For each vessel, Wärtsilä will also supply the gearbox the CPP, the bow and stern thrusters, air shaft seals, as well as the sterntube and bearings.

Next generation lift shipping

“These ships represent the next generation in heavy lift shipping. In addition to their technical capabilities, they will feature outstanding environmental performance and help guide shipping towards a greener future,” says Dr Martin Harren, Owner and CEO of SAL Heavy Lift.

“We are committed to decarbonising shipping activities, and we wish to thank Wärtsilä for their support and cooperation throughout this project.”

Future-proofing solution

“We are proud to be able to support SAL with Wärtsilä’s market-leading integrated hybrid-mechanical propulsion system. This is a well-proven, future-proofing solution that enables owners and operators to lower operating costs while complying with current and anticipated environmental regulations,” says Matthias Becker, Managing Director of Wärtsilä Germany.

Decarbonised future

The ships are scheduled for delivery in 2025 and will be used mainly to support wind farm installations.

Wärtsilä is a market leader in hybrid solutions for shipping applications with installations on board more than 70 vessels, and an installed battery capacity in excess of 100 MWh. The company has a broad portfolio of fuel-flexible marine engines that offer sustainable alternatives as the industry journeys towards a decarbonised future.

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Source: Wartsila

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