SciTransfer
GAMMA · Project

Retrofitting Cargo Ships to Run on Green Ammonia and Biomethanol Fuel

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Imagine turning a giant cargo ship into a floating power plant that doesn't pollute. Instead of burning heavy oil, the ship carries green fuels that are converted into pure hydrogen on the spot. This hydrogen then powers a large battery-like system to keep the ship running cleanly while at sea.

By the numbers
30%
reduction in GHG emissions
1 MW
low-temperature PEM fuel cell capacity
99.9%
hydrogen purity level
The business problem

What needed solving

Maritime shipping relies on fossil fuels and faces strict IMO mandates to reach net-zero by 2050. Existing fleets need a way to transition to green fuels without replacing entire ships.

The solution

What was built

A modular, containerized energy system featuring a biomethanol reformer, ammonia cracker, and a 1 MW PEM fuel cell for ship retrofitting.

Audience

Who needs this

Bulk carrier ship ownersMaritime engineering firmsGreen fuel suppliersPort infrastructure managers
Business applications

Who can put this to work

Maritime Shipping
enterprise
Target: Bulk carrier fleet operators

If you are a fleet operator dealing with strict IMO net-zero targets — this project developed a modular retrofit system that allows your Ultramax vessels to use biomethanol and green ammonia. This replaces fossil-fuel auxiliary generators and can reduce GHG emissions by at least 30%.

Port Infrastructure
enterprise
Target: Port authority and bunkering service providers

If you are a port operator dealing with the need for new fuel infrastructure — this project developed safe bunkering protocols for biomethanol and green ammonia. It validates the fuel value chain for international sea routes.

Energy Technology
SME
Target: Fuel cell and reformer manufacturers

If you are a technology provider dealing with the challenge of scaling hydrogen systems for marine use — this project developed a 1 MW low-temperature PEM fuel cell integrated with ammonia crackers. It proves these systems can operate in real-world ocean conditions.

Frequently asked

Quick answers

What is the estimated cost or price of the retrofit?

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

Is this technology tested at an industrial scale?

Yes, the project is retrofitting an Ultramax bulk carrier with a 1 MW low-temperature PEM fuel cell system for use on international ocean routes.

How is the IP or licensing handled for the modular system?

Based on available project data, there is no specific information regarding the IP or licensing terms for the developed technology.

How does this fit into current maritime regulations?

The project aligns with the International Maritime Organization (IMO) target to reduce greenhouse gas emissions to around net-zero by 2050.

How is the system integrated into the existing ship?

The system is designed as a modular, containerized energy system that replaces fossil-fuel-powered auxiliary generators, while keeping the original engines as backup.

Consortium

Who built it

The consortium is heavily industry-driven, with 15 industrial partners representing 79% of the group. With 8 SMEs and partners across 11 countries, the project is structured for commercial scaling rather than pure academic research, focusing on the practical integration of hardware on an actual vessel.

How to reach the team

Contact VERKIS HF in Iceland

Next steps

Talk to the team behind this work.

Contact us to connect with the GAMMA consortium for retrofit licensing.

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