The first prototype of HydroGen was in 2013 and is currently used in 14 countries across 3 continents.

Fleet operators, members of the agricultural community and private individuals have been using the device since 2016. The product has been part of publicly funded projects in the UK and abroad, demonstrating consistent results in various engine types, including cars, vans, HGVs, agricultural equipment, road sweepers, buses and gensets.

The product creates a mixture of oxygen and hydrogen gasses called oxyhydrogen utilising a process called electrolysis by using electricity and a catalyst. The purpose behind the device is oxyhydrogen hybridisation to optimise the combustion efficiency of existing engines.


Autonomous: the integrated electronic control unit automatically regulates the electrolysis process which allows for extended periods of operation, with no disruptions to the engine if the electrolyser stops working.

Compatibility: Can be used as an additive with any carbon-based fuel, such as diesel, petrol, and natural gas.

Low power consumption: 7amps

Low maintenance requirements: the only consumable is distilled water.

Customisable sizes: the product can be adapted to each engine type.

High efficiency: up to 3000ml/min

Installation without engine modification

The product is installed in a location accessible for maintenance and refilling with distilled water.

The electronic control unit is connected to the engine battery for a power supply, and to the alternator or a fuse for a signal.

The electrolyser is connected to the electronic control unit. The gas outlet tube is connected from the electrolyser to the air intake of the engine.

Quality tests to ensure all components are secure and that oxyhydrogen production begins only when the engine is running or when the ignition is switched on.

The only consumable is distilled water.


Fuel Saving

Oxyhydrogen enhances the combustion efficiency of diesel, petrol and natural gas, which allows engines to extract more energy per unit of fuel. Our product allows existing engines to run on a leaner fuel mixture, thereby reducing the amount of fuel required to reach the same or greater power output.

Clients report a fuel saving between 10-37%.

The variation is caused by the age of the engine and its operational environment.

Emissions Reduction

Exhaust emissions are a sign of inefficient combustion. Our product promotes the complete combustion of the fuel within the engine cylinders. This catalytic effect results in fewer unburned fuel molecules exiting through the exhaust in the form of smoke and particulates.

Clients report an emissions reduction between 25-80%

The variation is caused by the age of the engine and its upkeep.

Continuous Decarbonisation

Carbon residue on engine cylinders reduces efficiency. Oxyhydrogen expels carbon residue and reduces their formation. As a result, diesel particulate filters (DPFs) are not burdened with capturing as much carbon and particulates. This accumulating catalytic effect is a significant advantage in reducing maintenance costs and improves overall engine performance.

Clients report that the decarbonising effect is stronger on older engines.


Retrofit solution

Compatible with existing engines

Decentralised production

Oxyhydrogen is produced at the point of use without pressurised storage or hydrogen refuelling.

Operational Proficiency

Increases vehicle range without impacting payload.


Can meet the requirements of larger engines by connecting multiple electrolysers.

Cost savings

Helps you save money on your current engine instead of replacing it.

Personal empowerment

Helps you reduce the environmental impact of your engine.

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© 2024 Water Fuel Engineering Ltd.

© 2024 Water Fuel Engineering Ltd.

© 2024 Water Fuel Engineering Ltd.