How Tidal Transit Leveraged Marfle to Optimise Maneuvering, Reduce Fuel Costs and Deliver Safer Offshore Transfers

Safer Crew Transfers and Smarter Fleet Decisions in Offshore Wind

In offshore wind, a crew transfer vessel is judged on every trip: how safely technicians step onto the turbine, how gently the bow meets the foundation, and how much fuel the run consumed. Wind farm developers expect proof, not promises. For Tidal Transit, a leading UK offshore service provider operating in the North Sea, delivering that proof while keeping vessels efficient and in service is the core of the business.

Since 2017, Tidal Transit has run its fleet on Marfle Fleet Analytics. The result is safer, more transparent offshore transfers, less costly downtime, automated reporting and stronger relationships with the wind farm clients the company serves.

The Challenges: Limited Visibility in a Demanding Offshore Environment

In 2017, tightening industry requirements pushed Tidal Transit to find a solution that could deliver both vessel motion monitoring and remote engine monitoring, while also optimising performance and reducing fuel consumption. Before Marfle, the team faced several operational gaps:

• Limited access to live and historical vessel data for analysis or performance comparison.
• Need for vessel motion monitoring capabilities in challenging, unpredictable offshore environments.
• Inefficient manual reporting, prone to costly human error, undermining operational efficiency.
• Limited visibility into engine health, making it difficult to detect issues early.

Implementing Marfle Fleet Analytics

Tidal Transit began with two vessels. Marfle's onboard data loggers were installed to capture engine, fuel and vessel motion data in real time, with everything delivered to one fleet-wide platform accessible from shore. Crew and management gained the same live view of vessel performance, and historical data became available for comparison across trips, vessels and sea conditions.

What started as a two-vessel pilot has grown into a fleet-wide partnership. As Tidal Transit's operations and sustainability ambitions have expanded, Marfle Fleet Analytics has scaled alongside them.

The Results

Reduced Costly Vessel Downtime

Teams can identify issues early, avoid unplanned maintenance, and prolong the fleet's operational life, all while keeping vessels in service and minimising costs.

Safer, Smoother Technician Transfers

Marfle's motion metrics help Tidal Transit deliver safer, smoother, and more transparent offshore transfers, de-risking operations for wind farm technicians.

Automated Time-Consuming Reports

Daunting manual reporting is gone. Marfle instantly pulls the relevant insights and presents them in a modern report generated with a single click.

Strengthened Relationships with Clients

By providing transparent, reliable data on vessel performance and fuel use, Marfle helped Tidal Transit clearly demonstrate efficiency gains to clients. This strengthened trust, improved collaboration, and reinforced Tidal Transit's reputation as a forward-thinking offshore service provider.

Delivering Higher-Quality Transfers for Wind Farm Developers

With Marfle's motion metrics, Tidal Transit provides its wind farm clients with transparent, data-driven proof of transfer quality and vessel performance. Four key metrics give developers clear visibility into safety, comfort and asset protection:

• Heave during personnel transfer. Significant heave while technicians step across to the turbine means increased risk for the crew. Developers want visibility into heave levels to assess how safely and smoothly each transfer was performed.
• Docking impact force. Every turbine is visited thousands of times over its lifetime, and repeated hard impacts accelerate structural wear. Consistently low impact forces show that docking is gentle and the asset is protected.
• Motion sickness indicators. By comparing current weather with historical combinations of weather and motion-induced seasickness for that specific vessel, crew and operations management make better-informed go/no-go decisions and avoid sending technicians offshore in conditions likely to cause illness.
• Whole-body vibration. Vibration exposure during transit is an indicator of long-term crew well-being. Minimising it supports safer, more sustainable working conditions for personnel.

For wind farm developers, this means more reliable transfers, lower operational risk, and higher confidence in Tidal Transit as a long-term partner.

What Tidal Transit Says

“Marfle Fleet Analytics has given us valuable insights into engine performance, fuel efficiency, and predictive maintenance. The ability to monitor and compare fuel usage, including during our EcoMotus trials, has been instrumental in optimizing operations. A powerful tool for smarter, more efficient fleet management.”

Leo Hambro, Co-founder & Director, Tidal Transit

Conclusion

Tidal Transit's experience demonstrates how Marfle Fleet Analytics translates directly into safer operations, smarter fleet decisions, and measurable efficiency gains. What began in 2017 with two vessels has evolved into a trusted partnership delivering real fuel savings, emissions reductions, and deeper operational clarity.

In July 2026, e-Ginny, Tidal Transit's fully electric CTV, had Marfle installed onboard. As their sustainability and performance ambitions accelerate, Marfle scales right alongside them. That is how you Run Smarter.

Interested in safer, more efficient offshore transfers?
Our team would be pleased to answer your questions, understand your operational goals and recommend the fleet analytics package that best suits your offshore operations.

👉 Get in touch with the Marfle team today to start your journey toward smarter fleet operations.

About the author

Joose Viljanen

Joose Viljanen is the Managing Director of Marfle. He works directly with fleet operators in offshore wind, pilotage, towage and other demanding marine segments, helping them turn vessel and engine data into safer, more efficient operations.