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A centralised PEM electrolyzer is a type of electrolysis cell that transforms electrical energy into chemical energy by severing water molecules into hydrogen and oxygen using a polymer electrolyte membrane (PEM). It is known as “centralised” because it is frequently found in a plant that is centralised and has the capacity to produce significant quantities of hydrogen for use in industrial applications.
Electric current is run via the PEM, which is positioned between two electrodes, to power the PEM electrolyzer (an anode and a cathode).
The opposite electrode is drawn to the hydrogen ions (protons) and oxygen ions (hydroxide) that are created when the electric current divides the water molecules. When the oxygen ions are oxidised at the anode to create oxygen gas, the hydrogen ions are reduced at the cathode to create hydrogen gas.
PEM electrolyzers have the benefit of being able to work at low temperatures and pressures, which lowers the chance of corrosion and lengthens the life of the cell. They are also well suited for applications that need intermittent or variable power input because of their quick response times.
Large amounts of hydrogen are frequently produced by centralised PEM electrolyzers for use in industrial applications such fuel cells, refineries, and chemical plants. Moreover, they can be used to store excess renewable energy in the form of hydrogen, which can later be converted into electricity when there is a great demand for it.
Global centralised PEM electrolyzer market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
Fusion Fuel has announced that it will use a HEVO-chain solution to enter the centralised PEM electrolyzer market.
A novel new design that is based on the HEVO architecture greatly increases the addressable market and opens up new commercial applications.
A ground-breaking development in the construction of centralised PEM electrolyzers is the HEVO-Chain. The HEVO-Chain is based on Fusion Fuel’s proprietary HEVO architecture rather than a typical cell stack, allowing the system to run at a higher efficiency (approximately 49 kWh/kg of hydrogen) and prevent losses caused by more traditional electrolyzer stack designs.
Each HEVO-Chain hydrogen unit has 16 HEVO micro-electrolyzers that are coupled together along a string to produce 5.6 kg of hydrogen per day at a pressure of 4 bar, and each unit has an electrolysis capacity of 11.2 kW. The pressure at the outlet should rise to 20–30 bar with a second-generation unit that is currently being developed, among other enhancements.
