Damen Shipyards Group continues to extend its portfolio of electrically powered vessels. The latest addition to the line up is its first electric cutter suction dredge (ECSD) 650. With electric motors powering the dredge system, the ECSD 650 makes possible zero emissions dredging projects. The electric power provides a significant reduction in noise, adding an extra tier of sustainability and ensuring the dredge’s suitability for projects in densely populated and environmentally sensitive areas.
The ECSD is a modular dredge, based on Damen’s successful standardized shipbuilding philosophy, and is dismountable for transportation and easy assembly in the remotest of locations.
The standardization of the design meant that Damen was able to quickly produce this sustainable product by simply exchanging the diesel motors for electric ones, without the need for re-engineering. Standardization further ensures the easy adaption of the ECSD to suit local power supplies.
On the conventional CSD 650, the rear side pontoons serve only to provide buoyancy; in the ECSD the starboard side pontoon becomes an electrical nerve center. The dredge’s low voltage system equals easy maintenance with no requirement for special crew training. Meanwhile, the associated reduction in vibrations during dredging ensure a comfortable experience for those on board.
GOAL: TO BE THE MOST SUSTAINABLE SHIPBUILDER
“The ECSD is just one example of the products and services that Damen is pioneering as we fix our focus on our goal: to be the most sustainable shipbuilder,” says Damen sales manager Sjoerd de Bruijn. “Our role in this is not just to build electric vessels. As an integrator we provide the connection, linking and aligning stakeholders from industry and academia. In this way we build a knowledge network that encourages the wider development of sustainable solutions and ensures the long-term viability of the maritime industry.”
Damen says its work on the electrification of the maritime industry comes under the so-called E3 umbrella: environmentally friendly, efficient in operation and economically viable.
The shipyards group is currently working on a number of electric vessel projects.
These includes seven fully-electric Damen Ferries 2306 E3 for the city of Copenhagen, Denmark. They have a completely emission-free propulsion system, which will reduce the total emission of public transportation in Copenhagen by 2.5% for CO2, 10% for NOx and 66% for particulate matter. Damen is also building two Road Ferries, 6819 E3 and 9819 E3 to operate in Ontario, Canada, that will be the first fully electric ferries to operate in North America and will reduce CO2 emissions by as much as 7 million kg per year. In addition, six Island Class Ferries – Road Ferries 8117 E3 – that Damen is building for BC Ferries will have a hybrid propulsion system that can be easily converted to fully-electric in the future when the appropriate infrastructure is in place locally.
Meantime, under an order from the Port of Auckland, New Zealand, Damen is constructing the world’s first fully-electric ship-handling tug with a 70 tonnes bollard pull. With 80% of electricity in New Zealand coming from wind and hydropower, Damen’s tug completes the circle in a zero emissions operation.