Offshore substations

Global leader within offshore substations

Experience from 20+ EPCI substation projects

In-house specialists in electrical infrastructure

Our electrical infrastructure specialists

Connect offshore wind farms to the onshore grid and take care of your electrical infrastructure needs
including onshore and offshore substations.

Efficient project management, engineering and design

Our experts are available for the full range of consultancy services and can provide complete project management regarding the grid connection of offshore wind farms for wind farm developers. Our services include:

  • Feasibility studies
  • Electrical design, layout and detailed engineering
  • Mechanical and structural design
  • Technical specification
  • Tender inquiry and contract negotiation

For our projects, we also design and deliver all necessary electrical equipment, including:

  • High, medium and low voltage switchgear, transformers, supervisory control and data acquisition (SCADA) systems, HVAC, diesel gensets, UPS and cables
  • Fire protection, including systems for detecting and fighting fire
  • Communications equipment such as, CCTV, PA/PC, telephone lines and LAN networks.

Offshore accommodation

As an EPCI contractor, Semco Maritime delivered the world’s first offshore accommodation module on DONG’s Horns Rev II project. Since then, we have continued to develop the concept to meet the needs of other clients.
Learn more
Offshore accommodation

Rope access

Rope access technicians specialise in getting to the places that other people cannot reach without using expensive scaffolding, lifts or cranes.

Thanks to rope access teams, we can service, inspect and repair your wind turbines and blades - both onshore and offshore to bring down your maintenance costs and keep your out-of-service time to a minimum.

We have done it before ...

Sandbank

    

Project type

EPCI

Location

German North Sea

Period

2016

Project scope

Transformers, high voltage equipment, medium voltage equipment, F&G detection, firefighting system, heating, ventilation and air conditioning, communication systems, -switchboards (low voltage) and SCADA.

See time lapse video
Sandbank Offshore Substation

Bligh Bank 2

    

Project type

EPCI

Location

Belgian North Sea

Period

2016

Project scope

Transformers, high voltage equipment, medium voltage equipment, F&G detection, firefighting system, heating, ventilation and air conditioning, communication systems, - switchboards (low voltage) and SCADA.
Bligh Bank 2

Nordsee One

    

Project type

EPCI

Location

German North Sea

Period

2016

Project scope

Transformers, high voltage equipment, medium voltage equipment, F&G detection, firefighting system, heating, ventilation and air conditioning, communication systems,- switchboards (low voltage) and SCADA.

Nordsee One
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Offshore wind

Read about our leading position with offshore substations and service.

Windpower
Experience from major wind projects and EPCI leader in solutions and services for offshore wind.
There is only one choice - ask us why
Our shared experience with offshore substations counts 19 offshore substations.
SemService
Maximum uptime for your substation - one-stop service concept
Structural engineering and design
Innovative concept studies and structural design, onshore and offshore

Bjarne Christensen

Director, service operations

Semco Maritime A/S

Esbjerg Brygge 30

6700 Esbjerg

Denmark

 

 

Carsten Nielsen

Vice President, Wind, oil and gas

Semco Maritime A/S

Esbjerg Brygge 30

6700 Esbjerg

Denmark