Renewables | James Fisher and Sons plc

Driving offshore energy forward

James Fisher delivers high-performance services across the offshore wind lifecycle – from commissioning to operations, maintenance and long-term optimisation.

With deep technical expertise and decades of offshore experience, we help developers, owners and operators reduce risk, minimise downtime and maximise generation from their critical assets.

Our teams specialise in the systems that matter most - high voltage infrastructure, blades and cables - combining hands-on delivery with smart technologies to keep offshore wind working harder, safer and longer.

Talk to our renewables experts

Integrated renewables services, from seabed to substation

We provide practical, proven support across the most critical systems of offshore wind farms. Our integrated service model brings together cable, blade and HV expertise under one team – simplifying delivery and accelerating response.

Whether it’s routine maintenance or urgent fault response, we scale our service to your needs – combining field-proven methods, reliable equipment and experienced offshore personnel.

Cable services

Fault detection and rapid repair
Testing and termination
Cable inventory and storage
Risk planning and analysis

Blade services

Blade inspection, repair and maintenance
Leading edge protection (LEP) systems
AI drone inspections & reporting
Lightning protection system (LPS)

High voltage systems

HV SAPs (66–400kV) and safety management
Control room and OMS services
Export cable and substation maintenance
Lifecycle strategy and risk mitigation
Asset management
OWT services
Solar and battery storage

Pioneering solutions that reduce risk and improve performance

We’re not just solving today’s problems - we’re engineering better ways to operate tomorrow. From cable condition monitoring to workforce development and digital control, we invest in tools that deliver measurable value for our customers.

Each innovation is built around real operational needs – improving asset visibility, enabling faster decision-making and reducing lost generation time.

Cable Guardian

Real-time condition monitoring that provides early warning of faults and supports proactive cable risk management (including support for critical underwater infrastructure and anti-submarine warfare).

JF Academy

In-house training for high voltage and renewables professionals, building a skilled, safety-led workforce for the future.

Digital control centre

Centralised, data-rich hub for monitoring asset health, coordinating response, and supporting safe operational decisions.

Spares and stores

Strategic storage and management of spares and repair parts to support rapid offshore response and reduce downtime.

Four high voltage engineers walking in a line towards the camera with HV equipment in the background

Safe System of Work

Full lifecycle implementation of high voltage Safe System of Work (HV SSoW), tailored to project and regional requirements.

Air compressor for big bubble curtain projects

Purpose-built ST3100 air compressors designed specifically to support big bubble curtain operations for offshore noise mitigation and environmental compliance.

Controlled Flow Excavation

Industry-leading controlled flow excavation (CFE) capability, delivered by experienced offshore teams and supported by a comprehensive fleet of specialist equipment

Digital Twin

Integrated digital asset management solution that combines engineering and project data with real-world imagery to support planning, monitoring and decision-making.

Case studies

We are a long-term partner to the energy sector where we help to deliver outcomes that matter

Case studies

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Why partner with us

We work where others hesitate - in high-voltage, high-consequence environments where downtime is costly and every decision matters. Our teams combine practical capability with the technical leadership to deliver fast, safe, and reliable results offshore.

By integrating field delivery, engineering and innovation, we give you a single accountable partner – aligned to your asset strategy and committed to your commercial outcomes.

Proven safety record: 6+ years without a lost time injury
Local delivery, global reach: Operating in 25+ countries
Deep renewables expertise: >17GW offshore wind experience
Lifecycle approach: Construction to long-term O&M
Innovation leadership: First-to-market with monitoring and repair tools

Explore our energy solutions

Our renewables expertise is part of a wider energy services portfolio that supports customers throughout the lifecycle of their offshore and subsea assets. From asset integrity and decommissioning to inspection, repair and maintenance (IRM), we provide flexible, scalable support wherever and whenever it’s needed.