Pathway to Net Zero

CTV Charging Buoy

Project description

The Oasis Power Buoy is an innovative solution for powering Crew Transfer Vessels (CTV) used in operations and maintenance of Offshore Wind Farms.

The Power Buoy uses a direct connection to a wind turbine with subsea cables to recharge any hybrid / electric powered vessels whilst the CTV is on standby in-field.

The system can be retrofitted to existing WTG or incorporated in new designs.

Sealand provided support to Oasis Power to help progress the buoy from a feasibility study to the trial stage.

Key facts

Client: Oasis Power
Location: NNS
Water Depth: 20-60m
Dates: 02/21 – 06/21
Project Reference: P0512

CTV Mara Bouy Charging Buoy
CTV Charging Buoy map

Package Management

Business Assurance

Carbon Management

Energy Transition

Engineering Design & Analysis

Marshalling, TransportInstallation & Field Support

Floating Sytems, Floating,Mooring & Hook up

Visualisation & Digitalisation

Our scope

 Oasis Power required support in the following: 

  • Installation and hook up 
  • Logistics and Marshalling 
  • Monitoring and data acquisition 
  • Dynamic power cable lay analysis 
  • Mooring system design 
  • CTV impact assessment on floating unit 
  • Stakeholder management 
  • Proto type field 
  • Dynamic power cable lay 


  • Basis of Design
  • Mooring Analysis
  • Mooring System Design
  • Lay Analysis
  • Risk Register