SERVICES

Complete High Voltage Cabling
Solutions for Offshore Wind

Our Solutions

At OOC, we provide end-to-end expertise for offshore wind projects, ensuring high-quality delivery from initial planning through commissioning. Our team combines technical excellence with hands-on experience to meet the highest industry standards. Comprehensive Offshore Engineering Support

We specialize in every aspect of offshore electrical infrastructure, including:

  • HV Engineering – Advanced high-voltage system design and integration for reliable power transmission.
  • Cable Installation – Precision handling and deployment of subsea cables to ensure durability and performance.
  • Earthing Concept Design – Robust grounding solutions that enhance safety and system stability in challenging offshore environments.

 

With state-of-the-art facilities and a dedicated team, we deliver solutions that guarantee efficiency, reliability, and compliance—helping our clients succeed in the demanding conditions offshore”

Offshore Services

High Voltage Jointing & Termination

  • Cable jointing up to 525kV in challenging offshore conditions
  • Specialist termination work for platform and turbine connections
  • Emergency repair capabilities with rapid mobilisation

Project Management & Supervision

  • Complete project oversight from planning to commissioning
  • Experienced offshore project managers and supervisors
  • Integration with client teams and vessel operations

Testing & Commissioning

  • Comprehensive cable testing using latest equipment
  • Full commissioning support including documentation
  • Pre-energisation testing and fault location

Maintenance & Operations

  • Scheduled maintenance programmes
  • Emergency response and repair services
  • Control room support (on-site and remote)

Onshore Services

High Voltage Installation

  • Onshore cable installation and jointing
  • Specialist termination work for platform and turbine connections
  • Emergency repair capabilities with rapid mobilisation

Project Management & Supervision

  • Complete project oversight from planning to commissioning
  • Experienced offshore project managers and supervisors
  • Integration with client teams and vessel operations

Testing & Validation

  • Factory acceptance testing oversight
  • Installation testing and commissioning
  • Ongoing maintenance and inspection services

Project Support

  • Engineering support and technical consultancy
  • Project management for onshore elements
  • Quality assurance and compliance management

Specialist Capabilities

33/66kV Testing &
 Termination

Comprehensive expertise in medium voltage systems with certified testing equipment and experienced technicians.

Fibre Optic Solutions

Complete fibre optic installation, testing, and maintenance services for SCADA and communication

Cable Solutions & Consultancy

Strategic advice on cable selection, installation methods, and risk mitigation based on extensive project experience.

Safety &
 Compliance

Full HSE management, audit support, and compliance assurance for all offshore activities.

Onken Offshore Contractors GmbH (OOC) is a leading company with in-depth expertise in the planning and execution phases of onshore and offshore wind energy projects.

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