Dredging – Electrical Package
Bakker Sliedrecht has been awarded a contract from Jan de Nul Group for the delivery of an innovative electric DC-grid, plug-in hybrid power plant for its first plug-in hybrid, 2,000 m3 sized trailing suction hopper dredger.
The dredger has recently been ordered at 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 by 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.“ Choosing a DC-grid configuration for this vessel, provides 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 fewer components, its reliability increases, while capex and opex are lower.”
