Offshore Wind Service Technician
Maintain and repair wind turbines on offshore arrays in the North Sea and Irish Sea — climbing nacelles 60–100m above sea level and travelling by crew transfer vessel to remote installations.
High
Moderate
3–4 years: engineering apprenticeship (3 years) plus GWO and BOSIET certification (2–4 weeks); some employers offer direct entry with existing electrical/mechanical qualifications and fund GWO training
Level 3 Engineering apprenticeship (electrical or mechanical) as foundation; GWO Basic Safety Training (BST); GWO Sea Survival; BOSIET (helicopter underwater escape training); CA-ENG1 offshore medical certificate; wind-specific OEM training (Siemens Gamesa, Vestas, MHI Vestas)
What you do
Offshore wind service technicians carry out planned maintenance and fault diagnosis on wind turbines installed on offshore arrays operated by developers including Ørsted, Siemens Gamesa, RWE, and Vattenfall. The work involves travelling by crew transfer vessel (CTV) or helicopter from port to the array, climbing turbine towers to nacelle height (typically 60–100m above sea level), and completing maintenance tasks inside the nacelle and hub: inspecting and replacing gearbox oil, checking blade pitch systems, testing power converter units, inspecting generators, and calibrating SCADA sensors. Unplanned corrective maintenance — fault diagnosis and component replacement following turbine stoppages — is a major part of the role and requires strong electrical and mechanical troubleshooting skills under time pressure.
Offshore conditions make the role physically and mentally demanding. Technicians work in confined nacelle spaces, at height, in all weathers, with vessel access sometimes limited by sea state. Offshore rotations (typically two weeks on, two weeks off) require sustained fitness, concentration, and teamwork. All offshore wind technicians must hold GWO Basic Safety Training (BST), GWO Sea Survival, and BOSIET (Basic Offshore Safety Induction and Emergency Training, including helicopter underwater escape training). A valid offshore medical certificate (CA-ENG1) is required before starting offshore work.
The Offshore Wind Industry Council (OWIC) estimated the UK offshore wind workforce at 32,000 in 2024 and projected growth to 104,000 by 2030, driven by ScotWind, Round 4 arrays, and floating offshore wind development. Entry is via electrical or mechanical apprenticeships combined with GWO training, or through wind technician programmes offered by training providers including Blaenau Gwent College and the Offshore Renewable Energy Catapult. The role is distinct from onshore wind turbine technicians in certification requirements, working environment, physical demands, and earning potential.
Why this career is resilient
The UK's legally binding net-zero commitments require offshore wind capacity to reach 50GW by 2030, from approximately 14GW in 2024. Every turbine installed requires a minimum of twenty years of operational servicing — making offshore wind maintenance one of the most structurally committed technical workforces in the UK economy. The role cannot be offshored (technicians must physically access the turbines) and cannot be automated at the level of on-turbine maintenance for the foreseeable future. The OWIC workforce gap — 104,000 roles projected, far exceeding current supply — ensures above-average wages and strong job security. Offshore experience also transfers to adjacent sectors including oil and gas decommissioning and floating wind, extending long-term career optionality.
A typical day
Pre-dawn: muster at the operations and maintenance (O&M) base port, attend the morning safety brief, collect tools and personal protective equipment, and board the crew transfer vessel by 06:00. Vessel transit: one to two hours to the array; tool-box talk on board with the two-person team. On turbine: complete a scheduled service on turbines 7 and 12 — check gearbox oil levels and filter condition, inspect blade pitch bearings, test yaw system, download SCADA data. Fault attendance: turbine 19 has been stopped since the previous evening — fault-find a converter alarm, identify a blown DC link fuse, replace from the on-board spares kit, and reset for restart. Return transit: log work orders, debrief with the offshore supervisor by radio before vessel returns to port.
Routes in
Apprenticeship
Earn while you learn: work with an employer and study part-time, leading to a nationally recognised qualification. Typically funded by the government and your employer.
Employer-funded training
Some employers — particularly the NHS, emergency services, and larger care providers — run their own funded training programmes. You apply for a job and train as you work.
Pay and costs
Earning potential: Junior offshore wind technician: £32,000–£40,000. Experienced technician (3–5 years): £42,000–£55,000. Senior technician or team leader: £55,000–£70,000. Offshore rotation allowances and travel time pay are additional. Rates are higher for remote arrays and accommodation vessel rotations.
Training costs: GWO BST: approximately £1,200–£1,800 (often employer-funded). BOSIET: approximately £700–£1,200 (usually employer-funded for offshore roles). CA-ENG1 offshore medical: approximately £180–£250. Engineering apprenticeship: employer and Apprenticeship Levy funded.