Four more gas-fuelled PSVs for Siem

18 Feb 2014
Four more dual-fuel PSVs have been ordered by Siem Offshore of Norway

Four more dual-fuel PSVs have been ordered by Siem Offshore of Norway

Wärtsilä has been contracted by Siem Offshore to provide ship design, propulsion systems and other equipment for four more PSVs to be built at Remontowa in Poland for Siem Offshore.

This follows orders for similar ships placed in November 2012 and August 2013. The four new vessels, like the two currently under construction, will utilise the Wärtsilä VS 4411 DF ship design and will have Wärtsilä dual-fuel propulsion allowing them to operate primarily on LNG. Wärtsilä says that us integration of its supplied systems into a total solution, andwith an optimised hull design, the vessels will feature low fuel consumption, resulting in reduced fuel costs and fewer exhaust emissions compared to vessels running on conventional fuel oils.

According to Wärtsilä, the four new PSVs will be built to the highest requirements for operations on the Norwegian Continental Shelf. They will have an overall length of 89m, beam of 19m, deck area of 970m², and a capacity of 5,500dwt. They are scheduled for delivery between the third quarter of 2015 and the second quarter of 2016.

Wärtsilä will supply the complete diesel electric systems, LNGPac gas storage and handling systems, and the complete electrical and automation system, including a four-split Wärtsilä LLC (Low Loss Concept) solution. The LLC will enable the vessels to fulfill an Environmental Regularity Number (ERN) of 99.99.99. This rating represents the capability of a vessel to maintain its position and normal operations under certain weather conditions. Wärtsilä claims to be the first supplier capable of providing such a high ERN.

"This repeat order emphasises again the efficiency and customer benefits of Wärtsilä's unique position as a total solutions provider. 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," said Magnus Miemois, vice president, Wärtsilä Solutions.

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