SciTransfer
FLEXSHIP · Project

Modular Battery Systems and Digital Design Tools for Electric and Hybrid Ships

transportPilotedTRL 7

Imagine building a giant Lego set of batteries that can be swapped or scaled up depending on how far a ship needs to travel. Instead of guessing if the batteries will fit or be safe, a digital twin acts like a flight simulator to test everything before installation. This makes switching from diesel to electric as simple as plugging in a modular system that fits the specific ship's needs.

By the numbers
1-2MW
Power demand for short sea shipping full-battery propulsion
10-20 MW
Propulsion power for larger hybrid vessels
50 to 100 nm
Operating route for fully electric vessel demo
100 to 300 nm
Operating route for electric-hybrid vessel demo
150nm
Minimum sailing distance for full system test
The business problem

What needed solving

Ship owners struggle to electrify vessels due to the lack of flexible battery systems that fit different ship sizes and the high risk of unsafe electrical integration into existing grids.

The solution

What was built

A Green Digital Twin for grid design, modular high-efficiency battery packs, and a safe on-board integration guide.

Audience

Who needs this

Electric ferry operatorsHybrid cargo ship ownersMaritime electrical engineersShipyards specializing in retrofitting
Business applications

Who can put this to work

Short-Sea Shipping
enterprise
Target: Ferry operators

If you are a ferry operator dealing with high emissions on routes of 50 to 100 nm — this project developed a full-battery propulsion system for power demands of 1-2MW that reduces carbon footprints.

Maritime Logistics
enterprise
Target: Large vessel fleet owners

If you are a fleet owner dealing with long-distance routes of 100 to 300 nm — this project developed a hybrid battery propulsion system for 10-20 MW power needs to increase fuel efficiency.

Shipbuilding
mid-size
Target: Shipyard engineers

If you are a shipyard dealing with complex electrical integration and safety risks — this project developed a Green Digital Twin and a safe integration guide to ensure interoperability.

Frequently asked

Quick answers

What is the cost or price of the battery system?

Based on available project data, specific pricing or cost figures for the battery systems are not provided.

Can this be scaled for different vessel sizes?

Yes, the project focuses on scalable and adaptable architectures, covering both 1-2MW for short sea shipping and 10-20 MW for larger hybrid vessels.

Who owns the IP or how is licensing handled?

Based on available project data, the specific IP and licensing terms are not detailed, though an exploitation strategy is planned in WP7.

How does this handle maritime safety regulations?

The project delivers a regulatory framework based on the analysis of specifications and integration requirements for batteries in small and medium sized ships.

How is the system integrated into existing ships?

Integration is managed via a Green Digital Twin for design and a safe integration guide to ensure the battery system works with the vessel's existing power grid.

Consortium

Who built it

The consortium is heavily industry-driven with 8 industrial partners (47% ratio), including 4 SMEs, which suggests a strong focus on commercial viability. With 17 partners across 9 countries, the project leverages a broad European network of 5 research centers and 2 universities to bridge the gap between lab research and real-world maritime application.

How to reach the team

Contact the Brussels Research and Innovation Center for Green Technologies

Next steps

Talk to the team behind this work.

Contact us to connect with the FLEXSHIP consortium for pilot integration opportunities.

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