Bakker Sliedrecht has been awarded a prestigious contract by Jan de Nul Group to deliver an advanced electric DC-grid and plug-in hybrid power plant for the company’s first plug-in hybrid trailing suction hopper dredger (TSHD), which has a capacity of 2,000 m³, recently being ordered by Goa Shipyard Limited in India.
Along with delivering all the electrical hardware, including generators, electric motors, frequency drives, the main switchboard, and the battery system, Bakker Sliedrecht will also provide the automation system to ensure efficient control of the power plant. The in-house developed and proven DC-power management system optimizes the balance in power supply from the generators and battery system during all vessel operations. It also includes functionalities such as spinning reserve, peak shaving and ramp rate control.
The electrical system is designed to meet Jan de Nul’s goals to limit emissions and noise level as much as possible. It is one of many initiatives in support of their ambition to reduce the company’s greenhouse emissions with 40% by 2035, in line with the Paris Agreements.
By using a battery system that can be charged by the vessel’s generator sets or through a shore power connection, the vessel’s fuel efficiency is significantly improved.
“Chosing a DC-grid configuration for this vessel, provide several important benefits” explains Marcel Bakker, Sales & Proposal Manager at Bakker Sliedrecht: “A 40% space and weight saving compared to an AC-grid is particularly beneficial for payload built vessels like this trailing suction hopper dredger. In addition, with the Bakker Sliedrecht DC-grid design, electric losses are considerably lower, which makes a DC-grid power plant more fuel efficient. Finally, as the system requires less components, reliability of the system increases, while capex and opex are lower”.
Tom Maes, manager electrical and automation department at Jan de Nul: “It is a compact hopper dredger with remarkable capabilities, engineered for superior performance in smaller harbors, this vessel delivers exceptional agility and flexibility. In line with our commitment to sustainability, it features a state-of-the-art DC hybrid plug-in system, dramatically reducing carbon emissions. This innovation strengthens the versatility of our fleet and reinforces our dedication to driving a sustainable, electrified future.”
Following the recent successful delivery of a comparable DC-electric power plant combined with a battery system for another trailing suction hopper dredger, Bakker Sliedrecht is delighted to be recognized for its expertise in this field by a company like Jan de Nul. “We are very proud to work for Jan de Nul again on an innovative and high tech vessel like this.” adds Wim Verlek, Account Manager for Jan de Nul “We are truly impressed by the steps Jan de Nul is taking to reduce fuel consumption and carbon footprint of its fleet by building this vessel. To meet Jan de Nul’s own ambition towards zero emissions and to address the challenge the dredging industry is facing to meet emission reduction goals set by the International Maritime Organisation, this type of advanced electrical power plants are instrumental to meet these goals”.
