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Helicoptor approaching Brave Tern

Offshore wind turbines Operations & Maintenance services

Fred. Olsen Windcarrier provides you with the resources, marine spread, and expertise for efficient scheduled and unscheduled Operations and Maintenance (O&M) services, no matter your position in the offshore wind market.

We offer tailored solutions to suit your specific needs and requirements, providing specific O&M services or a fully integrated approach. With our related O&M companies, Global Wind Service, Natural Power, and ZX Lidars, you are guaranteed a complete solution, making the full range of our O&M services available through a single Fred. Olsen Windcarrier contract.

As well as our fleet of purpose-built vessels, our related O&M companies employ over 1,500 people in the offshore wind industry, including over 850 experienced wind turbine technicians, more than 350 renewable consultants, and a strong team of engineers and project managers.

 

Benefits of this for you:

  • a complete range of O&M services available through a single contracting body.
  • reduce your operational risks, management interfaces, and contractual complexity by taking the full responsibility and offering tailor-made O&M services at lump sum prices.
  • achieve the highest levels of health and safety with integrated HSE policies, documentation packages, and work instructions.
  • more than 25 years of experience working in the renewables market, combined with 170 years of commercial shipping experience, at your disposal

Learn more below about how the different O&M services offered by Fred. Olsen related companies can help you solve your challenges.

Download O&M track record

Major Component Exchange

Our unique combination of world-class marine spread, expertise, and experience means that Fred. Olsen Windcarrier brings you complete large component exchange solutions.


We have an impressive O&M service track record exchanging the following components: gearboxes, generators, main bearings, blade bearings, single blades, rotor stars, transformers, and nacelles.

Our capabilities include:

  • Grillage/sea fastening design, engineering, and fabrication
  • Quayside component handling – load in and load out
  • Offshore transportation and logistics
  • Heavy lifting operations and component removal and installation
  • Component inspection and repair (for rolling blade exchange)
  • Supply of experienced technical teams
  • Accommodation for component exchange teams
  • Crew transfer operations – CTV and/or helicopter
  • Jack-up support vessels
  • Complete HSE management
  • Full O&M project management including vessel, site and weather analysis
Work discussions

Wind Turbine Blade Repair

Our range of industry-leading wind turbine blade inspection and repair techniques gives you a partner that excels at working with all major blade types following turbine manufacturers’ specifications. Our technicians are highly trained and have experience in using all methods of accessing blades to undertake repairs – rope access, blade platform, and Mobile Elevated Working Platforms (MEWPs).

In addition to general and end of warranty blade inspections, we offer a range of blade repair services which include:

  • Non Destructive Testing (NDT)
  • ROAV inspection
  • Composite repair works
Bold Tern installing on Hornsea One

Rolling Blade Repair

Fred. Olsen Windcarrier brings you experience and expertise in repairing wind turbine blades on the deck of our jack-up vessels in a continuous process from turbine to turbine. This highly efficient approach minimizes your down-time and ensures the best quality repair.

Our specialist jack-ups Brave Tern and Bold Tern have 800t (Bold Tern soon with a 1600t) cranes, and spacious decks (3,200m2) allowing maximum flexibility – ideal for this type of campaign. Blue Tern features a 1,200t main crane and was specifically designed to withstand harsh offshore conditions – it’s also capable of operating in water depths of up to 65 meters.

First 3 WTG's on Honsea One

Integrated O&M service campaigns

Wind turbine service and repair is a key area of expertise and our track record in this area is extensive. We offer you services from a single technician to complete service teams co-ordinated with full project and site management and multi-scope solutions – including vessel provision and tool setup. We have experience with all the major European turbine models, covering all scheduled maintenance and unscheduled services.

Unscheduled services

  • Component retrofit campaign
  • Main component exchange – included but not limited to: drivetrain, gearboxes, generators (mechanical), hub and hub bearing covers, main bearings, shafts and yaw gearbox
  • Blade inspection and repair
  • Lighting protection systems; inspections and repair
  • Boat landing cleaning
  • Paint repairs

Scheduled maintenance

  • First maintenance (500 hour)
  • Annual service
  • Bolt torque and tension
  • Hydraulic systems
  • Oil and grease replacement
  • Electrical systems
  • Mechanical systems
  • Statutory testing of turbine mounted safety equipment
  • Statutory testing on hoisting equipment and lifts
  • Tower inspection and repair
  • Blade inspection and repair

Decommissioning and repowering

As the earliest wind farms reach the end of their lifetime, we are perfectly positioned to offer a range of services to decommission assets:

  • Marine licence documentation preparation and submission for decommissioning works relating to offshore wind infrastructure
  • Consenting advice for decommissioning of whole projects or part of a project
  • Consenting support through provision of environmental impact assessments, Habitats Regulations Assessment/Appraisal, and risk assessments and licence applications for European protect Species
  • Stakeholder consultation and fisheries liaison services
  • Consultation support with licensing authorities and landlords
  • Pre-decommissioning works support with discharge of licence conditions
  • Health & Safety Consultancy Services;
  • Core High Voltage Services
Deck

Installation

Whether you need a full-service solution or custom-fit selection of services, we support competitive installations with dependable and predictable outcomes at every stage. Heavier, higher, faster – whatever your challenge, our expert teams and versatile fleet are at your disposal.

Construction
Bridge (2)