SciTransfer
POSEIDON · Project

Fast-Response Energy Storage Systems for Electric Ships and Ferries

transportPilotedTRL 6

Imagine a giant battery that can charge and discharge almost instantly, like a spring that snaps back. This project puts three different types of these 'super-batteries'—including a spinning wheel and high-tech magnets—into a container on a real ferry. It helps ships handle sudden power spikes without damaging their main energy systems.

By the numbers
3
Innovative fast-response ESS types (SMES, Supercapacitors, Flywheel)
20-200 kW
Power capacities of developed ESS
200 hours
Operational demonstration time in maritime environment
12
Total consortium partners
The business problem

What needed solving

Electric ships struggle with power spikes and energy efficiency, while the lack of standardized regulations and clear cost-benefit data prevents the adoption of fast-response storage.

The solution

What was built

Three marinized energy storage systems (SMES, Flywheel, Supercapacitor) and a containerized testing unit. They also built an LCOS cost tool and a lifecycle analysis report.

Audience

Who needs this

Electric ferry operatorsCommercial shipyardsMarine electrical engineersPort infrastructure developers
Business applications

Who can put this to work

Maritime Transport
enterprise
Target: Electric Ferry Operator

If you are an electric ferry operator dealing with high power peaks during docking and acceleration — this project developed three marinized storage systems (SMES, Supercapacitors, and Flywheels) that stabilize the electrical grid and improve efficiency.

Shipbuilding
mid-size
Target: Vessel Designer

If you are a vessel designer dealing with the challenge of integrating green energy into hull designs — this project developed a containerized system and a cost assessment tool to determine the best storage fit for different ship segments.

Marine Engineering
SME
Target: Power System Integrator

If you are a power system integrator dealing with the risk of integrating hydrogen or rigid sails — this project developed an assessment of how these disruptive technologies work together with fast-response storage.

Frequently asked

Quick answers

How is the cost of these systems calculated for a business case?

The project developed a refined Levelized Cost of Storage (LCOS) tool specifically for cost assessment and comparison across different waterborne segments.

At what scale are these energy systems being tested?

The systems are being built with power capacities ranging from 20 to 200 kW.

What is the IP or licensing status of the technology?

Based on available project data, the project focuses on demonstrating applicability and proposing pre-standardization, but specific licensing terms are not listed.

Are there existing regulations for using these systems on ships?

The project identifies regulatory gaps and proposes new pre-standardization and pre-regulation for the three types of energy storage systems.

How is the technology integrated into a vessel?

The three systems are placed inside a container and tested on a BALEARIA electric ferry while in operation.

Consortium

Who built it

The consortium is heavily industry-driven with a 67% industry ratio (8 companies), including 5 SMEs. This strong commercial presence, combined with 3 research centers and 1 university across 5 countries, suggests the project is focused on commercial viability and industrial application rather than pure theory.

How to reach the team

Contact ASOCIACION CENTRO TECNOLOGICO NAVAL Y DEL MAR in Spain

Next steps

Talk to the team behind this work.

Contact us to explore the LCOS tool for your fleet electrification strategy.

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