Dutch owner Van Oord has signed up for two new water-injection dredgers at a domestic yard.
The 300-gt vessels will be delivered from late 2020 by Kooiman Marine Group.
The multifunctional units come with a hybrid system that can store energy in batteries from residual heat that is normally lost.
This energy is subsequently used for purposes including propulsion. Diesel-electric engines will also reduce CO2 emissions.
Van Oord said it is the global market leader in water-injection dredging.
"In order to retain this position, the fleet is being extended to include two new water injection vessels," it added.
"This new generation of vessels is versatile and has water injection dredging, mass flowing and power jetting systems. The latest technological developments have also been applied, such as heave compensation and dynamic positioning, which means that the dredging can be pre-programmed to a great extent and performed more efficiently."
