ABB to equip twelve Himalaya Shipping bulk carriers with shaft generator solutions

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Himalaya Shipping has contracted ABB to supply an integrated package of equipment for its series of 12 innovative ultra large bulk carriers of 220,00dwt each building at New Times Shipbuilding in Jiangsu, China, for delivery starting from 2023.

The package will feature innovative shaft generators with a Power-Take-Off (PTO) solution, comprising new drive systems and permanent magnet technology, improving the energy efficiency of these vessels by up to 4% while enhancing operational flexibility.

ABB’s full scope of supply for the Himalaya Shipping vessels also includes low-voltage drives and transformers, as well as engineering, project management and commissioning services.

The ships’ energy systems align with goals set out in the IMO Energy Efficiency Design Index (EEDI) and Carbon Intensity Index (CII), that will make them among the most efficient ships of their type upon delivery.

Shaft generator performance gains exploit the inclusion of permanent magnet technology and new ACS880 single drive systems from ABB, the drive system delivering greater responsiveness for the changing power needs of a bulk carrier depending on the speed, bulk freight weight, and electrical load changing.

The possibility to choose the most efficient operational option from several alternatives allows reducing fuel costs by 3-4%, while the footprint of the equipment package is approximately 20% smaller compared to equivalent units featuring synchronous excitation machines. In addition, higher power density enabled by ABB’s solution allows reducing fuel consumption and emissions.

“ABB’s latest series of shaft generators support our initiatives to ensure optimized ship efficiency, reduce CO2 / NOx emissions and deliver maximum performance using less power in a package that is compact, robust and easy to maintain,” said Jan Andersson from SeaQuest, Himalaya Shipping consultant.

“We are honored to build these innovative dual-fuel bulk carriers,” said Qiaohua Dong, Deputy Director of Ship Design Institute of Jiangsu New Times Shipbuilding Co., Ltd. “With more strict emissions regulations and requirements, our shipyard should also adapt to new technologies and solutions. It is the first time for us to install ABB’s latest shaft generator system.”

“This contract marks a significant milestone for our new generation of permanent magnet shaft generator-based solutions, with improved energy efficiency,” said Michael D. Christensen, Global Segment Manager Dry Cargo, ABB Marine & Ports. “The solution offers a range of benefits to help shipowners and operators enhance efficiency and reduce emissions without the need for additional investments compared to a standard synchronous excitation machine. Furthermore, the ABB ACS880 drive system ensures supreme performance and the very best uptime in class.”

Based on simplicity in construction, integrating permanent magnet technology onboard a vessel is straightforward, while reducing maintenance costs. The solution is also relevant for existing ships, where retrofitting shaft generator systems offers a practical option for improving energy efficiency and cutting emissions.

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