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    General enquiries
    Tel. +45 7916 6666
    semco@semcomaritime.com

     

    Semco Maritime
    Esbjerg Brygge 30
    DK- 6700 Esbjerg

    Full Offshore Service

    From WTG to OSS. One trusted partner for every service.

    Offshore wind operations are complex enough. Managing multiple service providers shouldn’t add to that complexity.

    At Semco Maritime, we bring the critical service scopes of your offshore wind farm together in one integrated setup. From turbine services and major component exchange to offshore substation expertise and 24/7 monitoring, we provide the capabilities you need across the asset.

    One partner. Fewer interfaces. Clear accountability.

    By connecting planning, coordination and execution, we help reduce interface risks, streamline service delivery and create more predictable offshore operations.

    Explore our offshore wind service portfolio below.

     

     

     

    Contact us
    01. Integrated offshore wind services 02. Offshore service hub Emden 03. Service for offshore wind turbines 04. O&M and service for OSS 05. Major component exchange 06. 24/7 monitoring center

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    Integrated offshore wind services

    Connecting expertise. Simplifying offshore operations.

    Our integrated offshore wind services bring planning, engineering and execution together across critical service scopes. By combining our offshore experience and technical capabilities within one delivery setup, we help customers manage complex operations more efficiently and with clear accountability.

    From offshore substations to Offshore wind turbine maintenance, 24/7 monitoring and major component exchange, our teams work across the asset to enable seamless and reliable service delivery.

    Fewer interfaces. Better coordination. One integrated approach.


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    Offshore service hub Emden

    Your offshore service base at the North Sea.

    Our Offshore Service Hub in Emden brings infrastructure, logistics and technical expertise together in one location, providing a strong base for offshore wind turbine maintenance and service operations. With 164,000 m² of operational space, direct access to the North Sea and a 450-ton gantry crane with quay access, the hub is equipped to handle large and heavy wind turbine components efficiently.

    From offshore wind turbine maintenance, main component overhauling and blade repair to storage, heavy transport, project cargo handling and tailored logistics solutions, the Emden hub supports offshore wind projects throughout their operational lifecycle.

    Our 24/7 Monitoring Center adds another layer of operational support, providing continuous monitoring, first-level support, fault analysis and troubleshooting to help minimise downtime and keep offshore operations running reliably.

    One location. Heavy-lift capability. Technical expertise. Direct access to offshore operations.


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    Service for offshore wind turbines


    Keeping turbines running. Safely, reliably and efficiently.

    We support offshore wind turbines throughout their operational lifetime with flexible, hands-on service solutions. From planned maintenance and troubleshooting to uptower repairs, retrofit campaigns and oil exchange, our experienced teams help increase availability, reduce downtime and extend asset lifetime.

    With efficient planning, rapid mobilisation and dedicated engineering support, we ensure safe and reliable execution offshore.

    Our services include:

    Planned maintenance & inspections
    Troubleshooting & fault rectification
    Uptower repairs
    Retrofit & lifetime extension campaigns
    Oil exchange
    Technical & engineering support


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    O&M and service for OSS

    Maximise availability. Keep critical infrastructure running.

    We provide comprehensive O&M and service solutions for offshore substations, helping customers ensure safe, reliable and efficient operation of their power transmission assets.

    Drawing on experience from servicing more than 55 offshore wind transmission assets, our teams combine technical expertise, operational experience and a strong supply chain to deliver tailored service packages for each asset and site.

    From planned and corrective maintenance to inspections, technical support and asset monitoring, our focus is clear: high availability, safe operations and predictable performance.

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    Major component exchange


    Complex exchanges. One coordinated solution.

    Main component exchanges require precise planning, experienced teams and seamless coordination across engineering, logistics, port activities and offshore execution. We provide tailored MCE solutions that bring these disciplines together to minimise downtime and ensure safe and efficient execution.

    From engineering and work preparation to transport, port management and offshore execution, we support the entire MCE campaign within one coordinated setup. With long-term charters for two jack-up vessels, Wind Lift 1 and Thor, we further strengthen our ability to support complex offshore exchange campaigns.

    Our services include:

    Engineering & work preparation
    Project & marine management
    Transport & port management
    Tools & lifting equipment management
    Offshore main component exchange
    WTG decommissioning & recommissioning
    24/7 technical engineering support

    One partner. Dedicated jack-up capacity. End-to-end MCE execution.


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    24/7 monitoring center

    Always monitoring. Ready to respond.

    Our Monitoring Center in Emden provides 24/7 first-level support and continuous monitoring of offshore wind assets. By identifying anomalies and faults early, our team helps minimise downtime, supports preventive maintenance and enables reliable day-to-day operations.

    Combining real-time monitoring with technical expertise, fault analysis and troubleshooting, we provide operators and service teams with the support they need to respond quickly and keep assets running efficiently.

    Our services include:

    24/7 first-level support
    Continuous system monitoring
    Fault analysis & troubleshooting
    Customer-specific reporting & analysis
    MV & HV switching operations
    Sea area monitoring
    Aviation radio monitoring

    Early detection. Faster response. Reduced downtime.


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    Fill out the form and let us know what you are looking for - and we will get back to you ASAP.