FEBRUARY 17, 2014 — Like two vessels ordered earlier at Poland's Remontowa Shipbuilding, the four further 89 m x 19 m platform supply vessels ordered at the shipyard by Siem Offshore (see earlier story) will be built to Wärtsilä VS 4411 DF ship design and will have Wärtsilä dual-fuel propulsion, allowing them to operate primarily on liquefied natural gas (LNG).
Wärtsilä's supply will include the complete diesel electric system, the Wärtsilä LNGPac gas storage and handling system, and the complete electrical and automation system, including a four-split Wärtsilä LLC (Low Loss Concept) solution.
Wärtsilä says the LLC will enable the vessels to fulfill the highest possible Environmental Regularity Number (ERN) of 99.99.99. The ERN rating represents the capability of a vessel to maintain its position and normal operations under certain weather conditions. Wärtsilä says it is the first supplier capable of providing such a high ERN.
"This repeat order emphasizes again the efficiency and customer benefits of Wärtsilä's unique position as a total solutions provider," says Magnus Miemois, Vice President, Wärtsilä Solutions. "These PSVs will often be working in challenging sea conditions, and in areas where strict emissions regulations are in place. Our integrated systems solution and dual-fuel technology that allows the ships to run on clean LNG fuel, enable such challenges to be met and overcome."