Wind farm substations

We bring energy to shore

Since 2002, when the first offshore wind farm was constructed in Danish waters, Semco Maritime has delivered complete solutions for wind farm substations across Europe and beyond.

With more than 20 offshore wind substation projects executed, we are a trusted partner for developers looking to connect offshore wind power safely, efficiently and reliably to shore.

Contact a specialist

World leader in offshore substations!

In collaboration with our partners, we have successfully designed and constructed more than 20 offshore substations, positioning Semco Maritime as a leading provider of EPC solutions for the offshore wind industry.

Our in-house specialist cover the full scope of the offshore wind substation delivery - From early engineering to fabrication, installation and commissioning. We deliver a fully integrated offshore substation tailored to your project.

Coastal Virginia, Dec. 2024

First set of giants for Coastal Virginia

In the video, you'll witness the sail-away of the first jacket and topside for Dominion Energy's Coastal Virginia Offshore Wind (December 2024).

We're proud of the positive change it’s going to bring:

Powering up to 660,000 households.
Eliminating up to 5 million tons of CO2 emissions annually.
Achieving a total capacity of 2.6 gigawatts.

We are EPCI specialists

Efficient project management, engineering and design

Our experts support offshore wind developers with the full range of consultancy services and complete EPCI delivery for offshore wind substation projects, including OSS (offshore substation) design and execution.

We provide end-to-end project management for the grid connection of offshore wind farms, ensuring seamless integration between offshore substations, wind turbines and onshore infrastructure.

Our services include:

Feasibility studies for offshore wind substation solutions
Electrical design, layout and detailed engineering
Mechanical and structural design of offshore substation platforms
Technical specifications and tender documentation
Tender inquiry and contract negotiation
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.

For our offshore wind substation projects, we also design and deliver all necessary electrical systems, 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.

Your EPCI partner

O&M and service:

Maximise uptime, minimise expenses

Since the start of our renewables adventure in 2002, Semco Maritime has been Safeguarding People and Assets by providing a choice variety of ad hoc, critical, regulatory and asset monitoring services.

Over the years of servicing more than 55 different offshore wind transmission assets, we have gathered a complete set of skills, experiences and supply chain, making us a market leader in providing turnkey O&M solutions.

Our innovative and sustainable O&M solutions are setting new standards in driving high availability levels for power transmission assets. Our service packages are customized to the specific needs of our customers and the individual site.

Our measure of success is asset availability and people safety.

Telecommunication and IT

Explore our telecommunication and safety solutions for your offshore wind farm. As a systems integrator we deliver and service all types of systems.

Firefighting solutions

Our customized firefighting and detection solutions satisfy the highest demands for reliability, operational safety and life-long technical support.

Manpower and consultants

We supply reliable, dedicated and highly skilled manpower and consultants to your operation. We adapt to your operation - easy hassle-free up and down-scaling - professional and cost-efficient.

Products and components

Your dedicated one-stop products and component supplier. Fast service, global reach and industry experience Find the products and components you need for hazardous areas.

Floating offshore wind substation

Semco Maritime's floating offshore substation page highlights their innovative solutions for floating wind farms, offering flexible and scalable substations that enhance energy transmission efficiency. The page details the benefits of these substations, such as reduced environmental impact and adaptability to various marine conditions.

Derek Phillips

Director, EPC Sales, Renewables

Semco Maritime A/S
Esbjerg Brygge 30
6700 Esbjerg
Denmark

Matthew Camp

Senior Sales Manager, Renewables

Semco Maritime Ltd.
37 Abercrombie Court, Prospect Road,
Westhill, Aberdeenshire, AB32 6FE
United Kingdom

Maria Alexandra Balslev Jørgensen

Business Development Specialist, Renewables