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1420VDC. Additionally, a hybrid pro- fully integrated package from Kongs- new fuels as part of a single, uni? ed sys- pulsion system is currently in develop- berg Maritime — including rim-drive tem architecture. ment that will consist of a propulsion propulsion, retractable azimuth bow Energy storage systems enable the in- engine, clutch, electric motor, variable thrusters, hybrid-ready power distribu- stallation of larger power take off (PTO) frequency drive, battery system, auxil- tion, and advanced automation — dem- systems. The size of a PTO is usually iary genset and controls. onstrates that the most ef? cient solution limited to a certain maximum percentage “What we’ve learned in collaborating comes from treating energy storage and of the engine power to ensure the engine with vessel operators, naval architects, and shipbuilders is that there truly is not a single solution that ? ts all appli- cations. What is appropriate for a pas- senger vessel won’t meet the needs of a tug, for example. Flexibility is key,” says Watson.

“This is why we’re focused on fuel ? exibility and multiple power options that can be customized for a vessel’s unique needs. Holistic marine power so- lutions that allow optimal transit speeds, improved fuel ef? ciency, and lower op- erating costs are a top priority. Lower- carbon intensity fuels are crucial for this reason and complement battery power to create reliable hybrid solutions that reduce diesel fuel consumption.”

Oskar Levander, VP Strategy and

Business Development, Kongsberg

Maritime, says: “The market trends we’re seeing toward larger energy stor- age systems and alternative fuels aren’t theoretical — they’re already appearing in advanced vessel projects.” A stand- out example is Kongsberg Maritime’s new UT7623 SEV (Sustainable Energy

Vessel) design for Olympic. The vessel owner has ordered two multipurpose subsea vessels which combine metha- nol-ready dual-fuel engines with a hy- brid battery system.

The UT7623 SEV can operate in battery-only mode for zero-emissions in port, use the batteries as spinning reserve to allow fewer engines online at optimal load, and smooth load ? uc- tuations to enhance engine performance and extend maintenance intervals. For offshore operations, the energy storage system can deliver extra power for high- demand moments — such as ROV de- ployment or maneuvering in heavy seas — without oversizing the main engines.

Levander says Olympic’s choice of a www.marinelink.com 13

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