NorSea Group and Wilhelmsen wins maintenance contract in offshore wind

NSG Wind and Wilhelmsen Ship Management have together won a five year frame agreement with TenneT, a leading European electricity transmission system operator.
Press release |

NSG Wind and Wilhelmsen Ship Management have secured a frame agreement running until 2022. The framework agreement is to provide a complete technical maintenance solution for TenneT’s off- and onshore transformer stations and AC electricity transmission systems.

Dennis Jul Pedersen, CEO of NSG Wind, says: “The offshore wind market is moving from niche to being one of the leading sources of renewable energy. Securing this contract enables our companies to deliver services in accordance with the high demands of health and safety standards that TenneT expects.”

The project is expected to commence in 2018. Wilhelmsen Ship Management will be undertaking the technical maintenance on components of the grid connection system including the secondary and auxiliary systems. Wilhelmsen Ship Management will also be responsible for the procurement aspect required in this services scope.

WSM wins offshore deal

The off- and onshore transformer stations will be maintained in accordance to the reliability-centred maintenance philosophy. Wilhelmsen Ship Management will carry out several digital initiatives in this project. Amongst them are structural inspections through drones and developing the 3D model of the transformer stations to increase diagnostic accuracy.

President and CEO of Wilhelmsen Ship Management, Carl Schou explains: “The collaboration between NSG Wind and Wilhelmsen Ship Management is a good combination of best of both worlds. Under this arrangement, NSG Wind will provide its network and project management experience and Wilhelmsen Ship Management will provide the technical maintenance aspect of it. To be part of this huge step towards a sustainable future is momentous to us.”

The collaboration between NSG Wind and Wilhelmsen Ship Management has been ongoing since NSG Wind was established in 2016. NSG Wind is currently expanding its office and manpower in Hamburg to increase proximity to clients and foothold in the German market.


Dennis Jul Pedersen, CEO of NSG Wind
+45 27 87 95 91 /

Esther Gan, Head of Marketing and Communications of Wilhelmsen Ship Management
+603 2084 5911/


About NSG Wind
NSG Wind provides integrated logistics and technical solutions for the planning, construction, and maintenance of offshore wind projects. NSG Wind is a subsidiary of NorSea Group, a leading base and logistic provider to the offshore industry.  


About Wilhelmsen Ship Management
Wilhelmsen Ship Management, a Wilhelmsen group company, is one of the world’s largest third-party ship manager with a portfolio of more than 450 vessels and 9 200 active seafarers. Wilhelmsen Ship Management provides technical and crew management services for various vessel segments; LNG/LPG, Ro-Ro and PCC/PCTC vessels, FPSO/FSO, Container, Cruise, Bulk, Seismic and Offshore. Wilhelmsen Ship Management manages from five offices worldwide and has a crewing network of 18 manning offices in 12 countries. Other key services include dry docking services, lay-up services, new building supervision, and Inventory of Hazardous Materials (IHM).