Workboats & CTVs — Offshore Wind Crew

The offshore wind sector is one of the fastest-growing areas of the global energy industry — and it has created sustained, structural demand for maritime crew that shows no sign of slowing. The UK, with the largest installed offshore wind capacity in the world, is at the centre of this growth. For seafarers entering or transitioning into this sector, the timing has rarely been better.

The Vessels

Three main vessel types operate in offshore wind:

• CTV (Crew Transfer Vessel) — fast monohull or catamaran vessels that transfer maintenance technicians between port and turbines. Typically 20–30m. Day operations in most cases.
• SOV (Service Operation Vessel) — larger vessels (60–90m+) that serve as offshore accommodation and service platforms. Crew live aboard during the campaign, typically 2–3 week rotations.
• CSOV (Construction and Service Operation Vessel) — hybrid vessels combining construction and service capability.
• Jack-up installation vessels — heavy lift vessels used for turbine installation. Specialist crew, high pay.

Core Certifications

GWO Basic Safety Training (BST)

The Global Wind Organisation (GWO) BST is mandatory for anyone working on offshore wind turbines. It comprises five modules:

• Manual Handling
• Working at Heights
• First Aid
• Fire Awareness
• Sea Survival

GWO BST takes approximately 5 days and costs £600–£900 at an approved centre. Valid for 2 years, then GWO Refresher Training (BSTR) required.

MCA Boatmaster Licence

CTV Masters on UK-traded vessels require the MCA Boatmaster Licence, which comes in three tiers:

• Tier 3 — inland and sheltered waters, vessels up to 24m
• Tier 2 — tidal waters and short coastal voyages, vessels up to 24m
• Tier 1 — worldwide operation including offshore, vessels up to 24m

Tier 1 Boatmaster is the standard qualification for CTV Masters working in UK offshore wind fields. Requirements include sea service, first aid, and written and oral assessment.