> RECENT PRO JE C T S TWO HYDROGEN VESSELS for inland shipping Hydrogen offers a solution where distances are too long for electric propulsion. We are working on this energy transition with Future Proof Shipping by converting ships with conventional propulsion to hydrogen propulsion. Holland Shipyards Group is in the process of converting two inland vessels to hydrogen propulsion. The first vessel, the Maas, will be commissioned in the second quarter of 2023, and the second vessel, the Waal, is currently under construction. The 110m by 11.45m vessels will be converted entirely, with the main engines and diesel generators giving way to hydrogen technology. The hydrogen and fuel cell system will be installed in the ship’s cargo hold, with the hydrogen placed above the fuel cell system in two 40ft containers (about 1,000 kg at 300 bar). The fuel cell system is triple redundant with an 825 kW capacity (to provide propulsion and auxiliary power) and a 504 kWh lithium-ion battery pack for peak shaving, secondary and bridging power. The system includes a 750V DC bus bar and an e-motor for propulsion. The vessels will soon sail between the ports of Rotterdam and Antwerp and expect to reduce some 2,000 tonnes of CO2 emissions per year. 27 WWW.HOLLANDSHIPYARDSGROUP.COM

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