1. Reference case 3 North Sea Shipping: North Sea Giant
Source: North Sea Shipping
April 4, 2019

2. Background Joint case with Wärtsilä
The North Sea Giant EBL order is the company’s first for this product
North Sea Giant – one of the world’s largest and most advanced subsea construction vessels (OSV)
Shipyard: Vigo/Haugesund, Norway
Gross tonnage: 18,151 GWT
Length: 153 m
Class: SPS

3. Challenge
The owner wanted to optimize efficiency, operational uptime, cost control and reduce its environmental footprint
The solution needed to pass a program of rigorous testing supervised by DNV GL

4. Solution
The Switch technology, supplied as part of a broader Wärtsilä solution
This system is based on a unique Electronic Bus Link (EBL)
New, innovative and cost-saving solution
EBL connects the vessel’s DC-Hubs together, ensuring efficient operations and redundancy, even if a critical fault occurs
EBL splits the on-board grids in a matter of microseconds, isolating faults and protecting the complete operational system
April 4, 2019

5. Results
The vessel can change between its diesel engines, running just 1, when necessary, rather than the standard 3 it used in the past
This results in savings on fuel costs and reduced emissions
Faults are no longer a threat, which reduces operational downtime and cuts maintenance costs
Efficiency is maximized
A global game changer – this is the first vessel in the world approved to run a DP3 class dynamic positioning system with one engine and batteries
April 4, 2019

6. Source: North Sea Shipping
April 4, 2019