Renewable Energy

As a world leading EPCI supplier of wind farm substations we have extensive experience in building and ensuring uptime for offshore wind assets.

Our role in wind energy

23

Offshore substations built since 2002

67

More than 67 offshore wind farms serviced

> 2

Million engineering hours in offshore wind projects

0

is our goal for Lost Time Incidents

Supporting You Across the Offshore Wind Lifecycle

From Development to Operations – We're With You Every Step of the Way

At every stage of your offshore wind project – from early development (DEVEX) and capital expenditure (CAPEX) to long-term operational support (OPEX) – we provide the tools, expertise, and insights you need to succeed. Whether you're planning, building, or optimizing your offshore assets, our end-to-end support helps reduce risk, accelerate timelines, and maximize value across the full project lifecycle.

Engineering studies

Our engineering expertise covers every aspect involved in transmitting electricity from offshore turbines to the onshore grid.

Windfarm substations

We have successfully completed the design and construction of more than 20 offshore substations, which makes us a leader in EPCI solutions and services for the offshore industry

O&M of the Balance of Plant

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 lifetime O&M solutions.

World leader in offshore substations and specialist in operation, service and maintenance

Since 2002, we have been an important part of many offshore wind projects. Based on our extensive experience and world-class engineering, we have developed ways to make sections of the substation into standard proven concepts – while meeting the exact needs and expectations of our clients.

We specialise in all aspects of bringing energy to shore - including telecommunication systems, firefighting systems, manpower and transport solutions.

We design and deliver all necessary electrical systems and we make sure that the substation runs smoothly by offering full service concepts for substations and transition pieces as well as ad hoc modification and maintenance.

Discover our how we can help you bring energy to shore by clicking the green button or visit the topics below.

Floating offshore substation

As offshore wind expands into deeper waters, we're developing floating substations to enable reliable power transmission where fixed foundations aren't viable. This innovation opens new frontiers for renewable energy at sea.

Sea-fastening and mobilisation

We have extensive experience with sea fastening design, engineering, fabrication and installation for offshore wind turbine components such as blades, nacelles, hubs and towers.

Derek Phillips

Director, EPC Sales, Renewables

Semco Maritime A/S
Esbjerg Brygge 30
6700 Esbjerg
Denmark