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Start-up unveils 25kW precious metal-free alkaline electrolyser with 74% efficiency

Summary by Hydrogen View
In 2023, the Malmo-based firm delivered a 5kW system, which achieved 67% efficiency, to Nilsson Energy (now Hydri) for testing in Gothenburg. Now, however, HyMeth says the larger 25kW stack has achieved a 4-10% efficiency improvement, bringing its overall efficiency to between 70 and 74%. The low-temperature, high-pressure alkaline electrolyser uses a non-precious alloy catalyst, which the company says will allow it to produce hydrogen at 25% le…
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