The 95 metre long vessels will be utilised in deep water offshore oilfield operations, with reliability, safety, and uptime specified as being priority requirements. Wärtsilä’s responsibility encompasses the complete power generation solution, electrical distribution and drives system, vessel automation system and propulsion system. All these systems will be fully integrated to provide optimal power, efficiency, versatility and redundancy, while having the lowest operating expenditures (OPEX) and a minimal environmental impact. In addition, Wärtsilä will supply comprehensive project services, including project management, engineering, yard support, and commissioning. The vessels’ power generation solution will be based on the latest model of the Wärtsilä 32 and Wärtsilä 20 generating set.
The Electrical and Automation system is centred around Wärtsilä’s proven and popular LLC (Low Loss Concept) power distribution system for electric and hybrid propulsion applications. The Wärtsilä LLC enhances energy efficiency and offers excellent redundancy with superb system availability. The Wärtsilä LLC will enable the vessels to achieve the highest possible Environmental Regularity Number (ERN) of 18.104.22.168. The ERN rating represents the capability of a vessel to maintain its position and normal operations under certain weather conditions. Wärtsilä is the first company capable of providing such a high ERN.
The propulsion system includes two Wärtsilä controlled pitch propellers (CPP) and five Wärtsilä transverse thrusters. The full integration of all these Wärtsilä systems ensures optimised operational efficiency while, at the same time, providing both the owner and the yard with single supplier time and cost saving benefits.
“With offshore oil and gas exploration moving to deeper waters and ever more challenging conditions, the emphasis is increasingly on efficient and reliable vessels with low operating costs and a minimal environmental footprint. These needs largely explain why Wärtsilä integrated solutions have been selected for these vessels, ” says Magnus Miemois, Vice President, Solutions, Wärtsilä Ship Power.
“The design of these vessels, display the need to provide safe operations with reliability and efficiency. An example of this is that we have selected Wärtsilä’s fully integrated, fuel efficient and flexible propulsion system to give the performance we need. This integration capability will enable good fuel economy, low emissions, and excellent station keeping. This certainly adds considerable value to the equipment package, ” says Head of Special Projects & Newbuilding, Director Peter Kragh Jacobsen, Maersk Supply Service A/S.
The first six vessels are scheduled for delivery between the fourth quarter of 2016 and the third quarter of 2017. If the option is taken up, the additional four vessels will be delivered in the beginning of 2018.
Wärtsilä in brief:
Wärtsilä is a global leader in complete lifecycle power solutions for the marine and energy markets. By emphasising technological innovation and total efficiency, Wärtsilä maximizes the environmental and economic performance of the vessels and power plants of its customers.
In 2013, Wärtsilä’s net sales totalled EUR 4.7 billion with approximately 18, 700 employees. The company has operations in more than 200 locations in nearly 70 countries around the world. Wärtsilä is listed on the NASDAQ OMX Helsinki, Finland.