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Operations and 
Maintenance

Operations & Maintenance Services for Offshore Wind

Our O&M services ensure that every aspect of your offshore wind farm operates at maximum performance. With a focus on preventative and corrective maintenance, we help you avoid downtime, reduce costs, and extend the life of your assets, all while maintaining operational safety and compliance.

WInd Turbine Gearbox

Preventative Maintenance

Our preventative maintenance services are designed to ensure long-term, reliable turbine operation. This involves scheduled inspections of key components, such as blades, gearboxes, bearings, and electrical systems, to identify early signs of wear or potential failure. We implement oil sampling, thermal imaging, lubrication checks, and corrosion protection to keep turbines in optimal condition. By conducting thorough inspections and regular servicing, we help you avoid unexpected breakdowns, reduce operational downtime, and maximize energy production efficiency. We also maintain detailed records of each turbine’s performance history, allowing us to fine-tune maintenance schedules and address emerging issues proactively.

Offshore wind engineer

Corrective Maintenance

When faults occur, our corrective maintenance services focus on rapid diagnosis and repair, minimizing downtime and ensuring turbines return to full operation as quickly as possible. Our expert teams are equipped to handle mechanical failures, electrical malfunctions, and structural issues, with specialized tools and spare parts on hand to perform onsite repairs or replacements. We also offer remote monitoring capabilities that allow us to diagnose some issues before technicians even arrive on site, reducing response times and improving repair efficiency. In critical situations, our teams provide 24/7 emergency support, ensuring that your turbines are back online without delay. We coordinate with spare parts suppliers to ensure swift access to needed materials, reducing wait times for repairs.

Inspection engineers abseiling down a rotor blade of a wind turbine in a North German wind

Blade Inspection and Repair

Blades are one of the most critical—and vulnerable—components of wind turbines, exposed to the harsh conditions of offshore environments. Our blade inspection and repair services use state-of-the-art technology, including drones equipped with high-resolution cameras, to perform close-up inspections of blade surfaces without needing to halt turbine operations. We assess for signs of damage, including cracks, delamination, erosion, lightning strikes, and leading-edge wear, providing detailed reports on blade health. For repairs, our technicians use rope access or platform lifts to carry out in-situ fixes, addressing everything from minor erosion to more extensive structural repairs. We apply advanced protective coatings and reinforce weak areas to extend blade lifespan and maintain optimal aerodynamic performance.

Fixing Electricity Lines

Electrical Systems Maintenance

Electrical systems are the lifeblood of any wind farm, ensuring that generated energy is transmitted effectively to the grid. Our electrical systems maintenance service covers transformers, switchgear, cables, and all associated equipment. We perform insulation resistance testing, thermographic imaging to detect hot spots, power quality analysis, and grid compliance testing to ensure your system is operating safely and efficiently. We focus on both preventive and reactive maintenance, identifying potential issues such as voltage irregularities, harmonic distortions, or insulation degradation early on. Our team also monitors turbine SCADA data for any signs of electrical anomalies, allowing us to address small issues before they lead to significant operational failures.

Cables in front of a group of windmills for renewable electric energy production, Westerme

Inspection and Maintenance of Offshore Export Cable – Above Sea Level

The offshore export cable is critical for transferring electricity from your wind turbines to onshore facilities. Our team performs above-sea-level inspections to check for damage, wear, or signs of corrosion that could compromise the cable’s performance. We inspect cable joints, terminations, and support structures, ensuring they meet operational standards and are free from mechanical stress or damage caused by environmental factors such as wave action or ship traffic. Our maintenance services involve cleaning, tightening, and repairing connections, ensuring the continuous and efficient transmission of power from your turbines to the grid. By maintaining these critical components, we reduce the risk of outages and enhance overall energy output.

inter array cable Nexans

Inspection and Maintenance of Offshore Export Cable – Above Sea Level

The inter-array cables connect the individual turbines within a wind farm, forming a crucial part of the electrical network. Our inspections focus on the health of these cables above sea level, ensuring that connectors, terminations, and protective coatings are intact and functioning correctly. We also monitor for environmental wear and mechanical strain caused by turbine movement or wave action. In addition to visual inspections, we conduct electrical testing to verify that the inter-array cables are operating at optimal efficiency. We perform any necessary repairs or replacements, ensuring the reliable flow of electricity between turbines, which is critical for maintaining the overall performance of the wind farm.

substation

Inspection & Maintenance of Onshore Substation

Our O&M services extend to onshore infrastructure, ensuring that the energy generated offshore is effectively transmitted to the grid. We perform regular inspections and maintenance on onshore substations, where electricity is transformed and prepared for distribution. We verify that transformers, switchgear, and other critical components are functioning correctly and meet grid compliance standards.

Engineer Working at Wind Turbine Farm

End-of-Warranty Inspections

As turbines approach the end of their warranty period, our team conducts detailed end-of-warranty inspections to identify any issues that need to be addressed before warranties expire. We provide a comprehensive review of mechanical, electrical, and structural systems, ensuring that all components meet the required performance and safety standards. We offer full documentation of inspection results, along with recommendations for repairs or replacements. This helps turbine owners secure warranty-covered repairs, avoiding costly out-of-pocket expenses after the warranty period ends.

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