Function
A number of vessels are used to support the installation process. These may include AHVs, CTVs, ROV handling vessels, SOVs and walk-to-work vessels.
What it costs*
About $7.8 for a 1 GW floating offshore wind farm.
Who supplies them
UK suppliers for the Asian market:
Vessel operators: HST Marine, Turner Iceni, Mainprize Offshore, and Windcat Workboats
South Korean suppliers:
KLEM and Sekwang Engineering Consultants Co.
Key facts
Specialist vessels are used for crew transfer to the wind farm for installation and commissioning tasks. CTVs are used if the wind farm is close to shore. Wind farms farther from shore use SOVs. Both types of vessels are regularly used in offshore wind farm maintenance.
ROV support vessels are 80 to 100 m long DP2 vessels with a moon pool and deck crane.