SciTransfer
Electric Blue · Project

Battery Retrofitting and AI Energy Management for Eco-Friendly RoPax Ferry Shipping

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Imagine giving an old ferry a giant, high-tech battery pack and a smart brain to manage its power. Instead of relying on heavy fuel, the ship uses a massive charger at the dock to power its journey. It's like upgrading a gas car to a long-range electric vehicle, but for massive ships carrying passengers and cars.

By the numbers
40%
increase in electric-only operating range
120
nautical miles range with batteries as primary power
5 MWh
existing battery system capacity on demo vessels
The business problem

What needed solving

Existing maritime vessels rely on carbon-heavy fuels, and transitioning to electric is hindered by limited battery range, slow charging, and a lack of clear safety regulations for retrofitting.

The solution

What was built

A full-scale retrofitted RoPax ferry system featuring next-gen batteries, high-capacity shore charging, an AI-driven energy management system, and digital twin modeling tools.

Audience

Who needs this

RoPax ferry operatorsPort infrastructure managersShipyards specializing in retrofittingMaritime insurance and classification societies
Business applications

Who can put this to work

Maritime Transport
enterprise
Target: Ferry Operators

If you are a ferry operator dealing with high fuel costs and emissions — this project developed a retrofitting kit for RoPax ferries that increases electric-only range by 40%, allowing ships to travel at least 120 nautical miles on battery power.

Port Infrastructure
any
Target: Port Authorities

If you are a port authority dealing with slow vessel turnaround and outdated power grids — this project developed high-capacity shore-side charging systems that enable rapid battery replenishment for large vessels.

Ship Engineering
mid-size
Target: Ship Design and Retrofitting Firms

If you are a design firm dealing with the complexity of electrification — this project developed digital twins and AI-driven energy management systems to validate extended range and thermal efficiency before physical installation.

Frequently asked

Quick answers

What is the cost or price of the retrofitting solution?

Based on available project data, specific pricing is not provided, but the project includes techno-economic analysis and business models to ensure the solution is economically viable.

Is this solution ready for industrial scale?

Yes, the project uses a full-scale demonstration on the Finnsirius or Finncanopus ferries and includes replication studies for diverse vessel types to ensure scalability across Europe.

How is the IP and licensing handled for the AI energy management system?

Based on available project data, specific licensing terms are not mentioned, but the consortium includes 10 industry partners and 3 universities to develop these tools.

What regulations does this project address?

The project delivers guidelines for retrofitting advanced battery systems and fire safety solutions to fill existing regulatory gaps for safe adoption.

What is the timeline for deployment?

The project runs from 2026-07-01 to 2030-06-30, focusing on demonstration and validation during this period.

Consortium

Who built it

The consortium is heavily industry-weighted with a 67% industry ratio (10 out of 15 partners), indicating a strong push toward commercialization. It integrates the entire value chain, from shipping companies (Finnlines, CSM) and power solutions (Wärtsilä, Corvus) to port authorities and a classification society (Lloyd’s Register), supported by 4 research entities for technical validation.

How to reach the team

Contact VTT Research Ltd in Finland

Next steps

Talk to the team behind this work.

Contact us to connect with the Electric Blue consortium for retrofitting partnerships.

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