The H-battery – enabling energy security in a renewable system
The H-Battery is designed to operate alongside existing and future energy infrastructure and within real market conditions.
By combining proven proven fuel cell technology with a simplified system design, ShipTown enables renewable energy to deliver reliable and affordable power throughout the year.
HOW IT WORKSOur patented H-Battery combines electrolysis and fuel cell technology into a single core.
It converts surplus renewable energy into hydrogen and back to power when required. The system achieves high efficiency through a simple, robust design using no rare earth materials and enabling low-cost hydrogen storage.
Designed for scale The H-Battery is delivered as a modular, containerised system designed for standardised production and scalable deployment.
A 2+ MW-scale H-Battery unit is housed in a 20-foot container and composed of multiple kW-scale stack modules. This architecture enables high manufacturing volumes, cost-efficient production and flexible system sizing across applications.
The modular design allows capacity to be scaled incrementally, supports redundancy at system level, and simplifies installation, service and future expansion.
The core innovationAt the heart of the H-Battery is ShipTown’s patented reversible stack design, integrating electrolysis and fuel cell operation within a single unit.
The stack produces clean hydrogen directly for storage, or offtake, when clean, cheap electricity is available and converts it back to power when needed, using the same core architecture. This eliminates the need for separate systems, reduces overall complexity, and improves efficiency across operating modes.
The technology is protected by more than 20 patents and is built using abundant materials, with no rare earth elements, supporting long lifetime, robust operation and a secure supply chain.
Key Features
Integrated system architecture
The H-Battery integrates hydrogen production and power generation within a single electrochemical core, significantly reducing system complexity.
High efficiency operation
The integrated, reversible architecture achieves high efficiency across both operating modes, enabled by bubble-free operation, a membrane-free design and higher operating temperatures. This results in efficiencies of up to 90% during hydrogen production and up to 60% during power generation.
No rare earth materials
The system is designed to use no rare earth materials and is supported by a buy-back and recycling programme.
Designed for scale
Modular, robust design enables deployment across renewable projects, grids, industrial sites and hydrogen infrastructure.
Want to do an even deeper dive in the H-Battery?
One solution. Clear value for every stakeholder across the energy system.
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Renewable energy developers and asset owners
Improve project economics
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Utilities, DSOs & TSOs
Ensure grid stability
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Critical infrastructure operators
Ensure stabile electricity supply
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Hydrogen producers and industrial users
Unlock hybrid revenue streams across power markets
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Maritime and port operators
Comply with ECA requirements
TESTIMONIALS“We invested in ShipTown because the technology addresses a growing need for flexibility and stability in modern energy systems. Its high efficiency, modular and simple design makes the solution both relevant and scalable, and the team has a clear and realistic path towards commercialisation. We see ShipTown as a strong partner in building the flexible, resilient clean energy systems required for the energy transition.”
— Knud Erik Andersen, Net Zero Innovation Hub for Data Centers
“We see ShipTown’s technology as a promising approach to delivering stable, zero-emission backup power for data centres. By enabling long-duration energy storage through an integrated hydrogen-based power system, the H-Battery has the potential to offer an alternative to diesel generators. It supports the ambition of maintaining high reliability while moving towards zero-emission power solutions.”
— Alberto Ravigni, Net Zero Innovation Hub for Data Centers