Our Focus
At HotCell, we are at the forefront of transforming hydrogen technology to support the shift to Net Zero. With governments and global corporations increasingly investing in green hydrogen, there is a growing demand for cost-effective, efficient solutions across power generation, gas production, storage, transportation, conversion, and end use.
Our focus is on the underdeveloped side of the hydrogen market—improving overall system efficiency to enhance both cost-effectiveness and performance.
Our USP
Increased efficiency is the key advantage of HotCell’s designs. We use simple manufacturing processes and materials in the construction of our plate cells, and our system design reduces the requirement for auxiliary equipment and control systems. This brings installation down to a fraction of the cost of conventional designs.
Traditional hydrogen installations remain prohibitively expensive for domestic use, and industrial adoption has been slow due to complexity and cost. Leveraging over 10 years of research and prototype development, HotCell is poised to bridge this gap, delivering innovative solutions for both consumer and industrial markets.
Our Future
As the hydrogen market expands, we see its potential in national grid integration, fuel systems, pharmaceutical processes, medical applications, carbon-neutral recycling, material processing, and residential use. Growing public awareness and environmental concerns are driving a shift towards renewable energy, and we believe that sustainable energy must be both feasible and accessible.
HotCell is ready to capitalise on this momentum by offering self-contained, easily installed products that deliver energy savings and environmental benefits for homes and large-scale commercial or industrial applications. Join us as we work towards a cleaner, more sustainable future.

Hybrid Fuel System FAQs
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The system draws electricity from the engine to split water into oxyhydrogen gas (a mix of hydrogen and oxygen), which then displaces a proportion of the air inducted by the engine. The oxyhydrogen gas improves fuel burn efficiency, with the hydrogen allowing the diesel to ignite at a lower pressure volume, and the increased amount of oxygen burning the fuel faster. This considerably increases the amount of energy from the diesel fuel that is converted into work instead of heat during the piston stroke. This outweighs the electrical power draw of the system due to the release of embedded energy within otherwise unburned hydrocarbons.
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As the enhanced combustion process allows the diesel fuel to be burned more completely during the power stroke there are considerably less unburned hydrocarbons left over. which leads to a reduction in C, CO2, unburned hydrocarbons and soot emissions or carbon deposits.
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A primary reason engine wear occurs is due to degradation in oil condition. Oil degradation is rapidly accelerated by soot deposits from the combustion process passing by the piston ring seal and exhaust valve stem seals during the exhaust stroke of the engine. Because our systems significantly reduce the amount of carbon and soot normally generated from the unburned hydrocarbons, oil contamination rate is significantly reduced. Along with the reduced degradation in oil condition there are no soot deposit build ups in the combustion chamber or exhaust system. This increases the service life of valves, guides and valve seats as well as turbochargers, catalytic converters, DPF’s and EGR systems.
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With our system, there’s no stored hydrogen. Oxyhydrogen gas is generated on demand and used immediately in the engine, meaning there are no high-pressure tanks or large volumes of stored gas. When the engine is not running, no oxyhydrogen gas is produced. This makes it significantly safer than systems that rely on stored hydrogen.
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The system has been designed for marine environments, using corrosion-resistant, marine-grade materials and incorporating no moving parts. This greatly reduces potential failure points, resulting in high reliability and minimal maintenance needs. It is a compact integrated solution that is simple and safe to install without impeding engine accessibility for maintenance.
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Alongside a power source, all you need is deionised or distilled water, which is readily available. The system only consumes small amounts of water and fills automatically from a built-in header tank that requires infrequent top-ups.
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No. The system is powered from the vessel’s own engine and is supplied with a dedicated second alternator during installation. While this creates load on the engine, it is more than offset by the fuel efficiency gains the system delivers (see answer above).
Contact us.
If you would like to find out more about our products, discuss our consultancy services, or explore opportunities for collaboration, reach out via our website, or email directly:
jim@hotcell.co.uk