Stabilizing Green Energy for a Sustainable Future
Green power on demand – storing surplus energy and delivering it when you need it most
H-Battery
ShipTown's H-Battery: Reliable, efficient, and green energy – whenever the sun doesn't shine and the wind doesn't blow.
Our patented H-Battery combines electrolysis and fuel cell technology into a single, scalable solution. It stores surplus renewable energy as hydrogen and converts it back to power when needed – all with high efficiency, no rare materials, and minimal system complexity.
Highlights
Ca. 90% efficiency in electrolysis mode and 60% in fuel cell mode
Modular, robust, and simple design
Sustainable: No rare materials, buy-back program for recycling
Take a deep-dive into the H-Battery here.
Proprietary technology protected by +20 patents.
The Opportunity
Bridging the Gap Between Renewable Peaks and Demand
Renewable energy is abundant when the sun shines and the wind blows – but scarce when demand is highest or production low. H-Battery bridges this gap, enabling businesses to optimize power use, reduce fossil fuel dependence, and secure green power – even during peak demand or grid instability.
For renewable energy developers, H-Battery helps optimize plant output, provide grid balancing services, and strengthen their overall plant business cases.
Main Areas of Focus
Data Centers and Critical Infrastructure
H-Battery ensures 100% green power backup and grid stability even when the grid fails. It even provides optimized and stable energy costs.
A green, cost-competitive alternative to fossil fueled generator and batteries.
Renewable Power Plants and PtX Facilities
Enabling optimized energy output, grid balancing, and stronger business cases by storing and delivering power when it's needed – not just when the sun shines or the wind blows.
The Maritime Industry
H-Battery, optimized for fuel cell operation, provides green energy for ships – ensuring clean, reliable power both onboard and in port.
For Partners and Investors
Why Partner with ShipTown?
H-Battery offers a unique combination of technical innovation and commercial potential:
Competitive cost
Reversible system with both electrolysis and fuel cell in one unit
Strong IP portfolio with over 15 patents, including core patents on CO₂ handling and the mechanical design of the electrodes
Scalable from pilot to mass production
Roadmap to commercialization and global impact
Connect with us to explore collaboration or investment opportunities:
Co-founder and CEO: Marie Vedel Lauridsen, mvl@shiptown.com
Founder and CTO: Karsten Schibsbye, ksc@shiptown.com
About ShipTown
ShipTown was founded with a vision to make green energy reliable and accessible - for anyone, everywhere.
Our team combines deep expertise, strong networks, and bold innovation to rethink how green energy is stored and delivered to the grid exactly when it's needed most.
We are committed to developing simple, effective, and scalable solutions – because from experience, we know that's what it takes to compete and achieve full commercialization.
Our vision includes achieving B-Corp certification and pursuing local content strategies – all while keeping sustainability at the core of everything we do.
ShipTown was founded by two dedicated green energy professionals, backed by brilliant financial and engineering minds, and strengthened by a committed advisory board and board of directors.
FAQ
Find quick answers to common questions about ShipTown and the H-Battery.
What do we offer
H-Battery: A reversible fuel cell that integrates both electrolysis and fuel cell functions in a single unit, delivering high efficiency at competitive costs.
What makes us different
ShipTown's H-Battery stands out in several ways:
- Reversible operation: Unique combination of electrolysis and fuel cell, peak-shaving and peak-covering, in one single unit.
- High efficiency: 90% efficiency in electrolysis mode, 60% efficiency in fuel cell mode.
- Simplicity: An innovative design of the electrodes, ensures a simple structure, reducing the Balance of Plant and system complexity.
- Sustainable: Using no rare materials and offering a buy-back program to support proper recycling and material recovery.
- Cost-effective: Low CAPEX, H-Battery stores larger energy volumes for extended periods.
How it all began
It all started when our founder, Karsten Schibsbye, was conducting tests on an alkaline electrolysis cell. By accident, he short-circuited the cell. To his surprise, sparks continued to ignite as long as oxygen and hydrogen bubbles were present. This observation led him to revisit the principles of the alkaline fuel cell, revealing its inherent reversibility. Beyond this, the technology offered high efficiency, a simple structure, and relied on basic metals – characteristics that also made it the preferred choice for NASA's space missions.
Applications
Data Centers and Critical Infrastructure
Renewable Power Plants and PtX Facilities
The Maritime Industry
Innovation and Development
Together with key partners, we are currently preparing to scale to a 100 kW prototype. By 2027, we will have a full-scale pilot module of 2 MW ready for testing. These modules can be coupled to individual project needs.
This progression reflects our commitment to advancing H-Battery technology and delivering large-scale solutions.
