The Finnish company will supply dual-fuel engines, the LNGPac fuel storage and supply system, the propulsion system, as well as provide a number of other services.
The 210 m long Orion, owned by DEME and constructed by the Chinese COSCO Shipyard, will feature Wärtsilä's 9-cylinder 46DF dual-fuel electric propulsion engines, and two 6-cylinder 20DF dual-fuel engines.
The company will also supply two custom made retractable thrusters and four underwater demountable thrusters, along with providing commissioning, site supervision, and extended project management services.
Orion's Wärtsilä equipment is scheduled for delivery to the yard in the latter part of 2017, whereas the vessel itself is to set sail in 2018, and will be used for installing offshore wind farms.
"The decision to utilise clean burning LNG fuel represents our commitment to provide environmentally sustainable solutions for our operations. Wärtsilä has extensive experience and vast technological know-how in this field, which is why we have selected them as our partner in this project," Jan Gabriel, Head of Newbuilding and Conversion Department at DEME, said.
Arthur Boogaard, General Manager, Business Development Special Vessels at Wärtsilä, added, "We are pleased to have been involved in this newbuild project from the conceptual design stage, since this enables our input on providing the most fuel efficient solution. We are also delighted that the Wärtsilä 46DF engine has been selected, as the dual-fuel version of this well proven and popular engine has only recently been introduced."