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Wärtsilä has been contracted to supply the ship designs for three new platform supply vessels (PSVs).

The contracts have been signed with Kleven Maritime AS, the Norwegian shipyard that will build the vessels, two of which will be owned by Atlantic Offshore and the other by Remøy Shipping. All three ships will be operated by Statoil, the Norwegian oil and gas company.

The two PSVs for Atlantic Offshore will also feature Wärtsilä power and propulsion, electrical and automation systems, including the patented Wärtsilä Low Loss Concept (LLC).

The highly redundant diesel-electric system provides additional reliability for continuous operation in various failure modes. The vessels will attain the highest possible Environmental Rating Number (ERN) of 99.99.99.99, representing their capacity to maintain position and normal operations in certain weather conditions.

The Integrated Automation System (IAS) will also include the advanced Wärtsilä ECOmeter. This feature allows the operator to be able to optimize the vessel's fuel consumption, and is a tool for track planning, as well as ensuring the most efficient running of the generators.

Wärtsilä's equipment deliveries will begin in autumn 2013, and all three vessels are scheduled to be operational by the end of 2014.

Statoil will utilize the PSVs to support its operations on the Norwegian continental shelf, and the Wärtsilä designs have been tailored to meet the challenging conditions presented by the North Sea environment. The designs also accommodate the specific fuel economy and cargo capacity requirements of the owners and operator.

The Remøy Shipping-owned PSV will operate on liquefied natural gas (LNG), and is the eighth LNG PSV to be built based on Wärtsilä designs.

"This significant order speaks highly of Wärtsilä's design capabilities, which are based on the company's deep experience and broad know-how. The original tender was for seven vessels, and of those, only one was for an LNG fuelled PSV, which Wärtsilä Ship Design was selected for. All in all, Wärtsilä Ship Design won orders for three vessels, which represent a large part of the total order. We are delighted that our proposals were judged to be appropriate and competitive, and that our tenders have been successful," said Riku-Pekka Hägg, Vice President Wärtsilä Ship Design.

The Atlantic Offshore vessels are based on Wärtsiläs Ship Design's VS485 format, and are 90.4 metres in length. The LNG PSV for Remøy Shipping is a Wärtsilä Ship Design VS4412 DF PSV design, and is 92.5 metres long.

Key Facts

Atlantic Offshore - 2 x VS 485 PSV MKIII L
Length overall ..... 90.40 m
Breadth moulded .... 20.00 m
Depth to 1st Deck .. 8.60 m
Maximum speed ...... 15.3 knots

Accommodation: 25

Equipment:
4 x Wärtsilä 9L20 engines with generators
Low Loss Concept LLC system
electric and automation system

Remøy Shipping - VS 4412 DF PSV

Length over all..... 92.50 m
Breadth moulded .... 20.00 m
Depth to 1st Deck... 9.00 m
Speed............... 15.2 knots

Accommodation: 26