A Marine Battery Solution – Ready to set sail

Marine Electrification: Cutting Costs and Emissions

The future of marine electrification is here. The European research project SEABAT, that we coordinated, has been successfully concluded and the promising results are in. We have taken an important step toward making sustainable, cost-effective battery solutions a reality for the maritime industry. We are ready for the next step: bringing this innovation to the markets.

Cheaper, smaller, and lighter: a well-rounded electrification solution

Marine battery systems have long faced challenges related to cost, weight, volume, integration, and safety. We developed a modular and hybrid battery system that optimally balances performance and size.

• By combining high-energy and high-power batteries, we avoid the need for oversized battery packs while ensuring efficiency and scalability.
• The modular system leverages economies of scale while improving ease of integration and maintenance as well as recyclability.

Read more about this innovative battery architecture and how it provides an electrification solution for a myriad of industries. We have tested and validated this energy storage system proving it provides both longe range as well as bursts of high power.

Can this provide the answer to your electrifcation challenge? Try our battery sizing tool today and explore the advantages of a hybrid battery configuration firsthand.

More affordable and efficient

Our modular approach reduces component costs, enabling vessels of various designs to benefit from economies of scale. Importantly, this system has been constructed and rigorously tested in a specialised facility to replicate real-world maritime conditions—demonstrating its efficiency, durability, and reliability.

The real impact? Marine batteries are set to become more affordable and efficient. This makes electrification not just the most sustainable option but also an economically sound investment. Electricity is cheaper than conventional marine fuels, and the improved battery architecture allows for greater energy efficiency.

• Cost reduction due to the modular concept: up to 15% - 30%
• Cost reduction due to the hybridisation of the battery system: up to 50%, with three out of the five vessels we tested benefiting from hybridisation.

Key Innovations

SEABAT has resulted in the development of a flexible and scalable hybrid battery system for the maritime sector, offering significant improvements in efficiency, design, and cost. Key innovations include:

• A hierarchical control architecture for scalability, flexibility, and therefore, maximized economies of scale
• An integrated cooling system to enhance performance, longevity, and compatibility of solid-state batteries
• Plug-and-play assembly to simplify integration and maintenance
• Module level thermal propagation prevention to ensure safe operation in extreme conditions
• Future-proof design, independent of battery chemistry, allowing for future advancements

The Road to Market Begins

The next step is building this battery system into vessels. Our profitability analysis shows a return on investment exceeding 20% per year, with the strongest value proposition for roro ferries, fishing vessels, tugboats, and superyachts. These vessel types benefit most from the increased efficiency and modularity of the new architecture.

In particular, superyachts are well-suited to electrification, where ecological considerations, operational cost savings, and reduced noise are major advantages. An electric engine operates silently—a clear benefit for both passengers and the surrounding environment.

The future of widespread marine electrification is no longer a distant goal. It is a viable, cost-effective, and safe choice. The technology is ready, the economic benefits are clear, and now is the time to move forward.

We are ready to take the next steps in our research, as we further improve battery technologies for maritime and other industries.

Read about our ongoing battery-releated research projects

Technologies

Power and Energy Components and Systems

Advancing electric machines, batteries, power electronics, transmissions and thermo-fluid energy systems.