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Tuesday, June 1, 2021 

Damen has delivered two electrically powered booster stations to the German dredging contractor Johann Bunte Bauunternehmung, which, says the company, marks an important step in the energy transition, going from diesel to green power.

Both boosters will start on their first project in Niedersachsen, Germany in August. The identical boosters were designed and built by Damen Dredging Equipment (DDE). The containerised unit houses the Damen dredge pump, which is driven by a 1,095kW Siemens motor, through a gear box. The frequency drive and switch board are located in a separate space. The booster stations receive power via a local 690V AC power cable. They can be operated from the dredger using remote control, including automatic control of the multiple dredge pumps. Each booster is the size of a 30ft container for practical relocation.

Both E-boosters have been tested at the Damen Dredging yard in Nijkerk, the Netherlands. Joppe Neijens, Damen sales manager said: “It is quite remarkable how silent these boosters are compared to the diesel driven ones. That and the fact that they can be powered from the grid make them extremely well suited for dredging jobs in sensitive environments.”

The customer is a well-known German family-owned contractor with a large portfolio in dredging and construction projects. Management Board member Frank Schreiber said: “Our investment in the Elektrobooster is part of our corporate strategy as an element of our sustainability concept. Efficiency, environmental protection and resource conservation are very important for a modern construction company like Bunte. The boosters will be named Pirate XII and Pirate XIII to follow our company tradition.”

A Niedersachsen motorway project will be the maiden job for the silent boosters. They will work behind the stationary dredger Pirate II, and will pump 1.2 million m³ of sand over a distance of 7.6km through a nature reserve to the new A26 motorway near Hamburg.

The electric boosters represent part of Damen’s own strategy towards sustainability. The company has developed various solutions for improved environmental efficiency, including a fully electric cutter suction dredger, capable of zero emission dredging projects. These electrical booster stations are a welcome addition to the Damen portfolio and the extensive Bunte dredging fleet.

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