New process slashes cost of hydrogen electrolysis more than 90%
Thursday, October 28, 2010 at 04:31PM Hydrogen electrolysers could become over 90 per cent cheaper to build, the inventors of a new device claim
Surrey-based RE Hydrogen has developed a 1KW version of its electrolyser, which uses electricity to separate water into hydrogen and oxygen, and this month received £25,000 from the Technology Strategy Board (TSB) to produce a bigger unit.
The dramatic cost-cutting was achieved by eliminating mechanical parts not related to the electrolysis reaction using a different manufacturing process, RE director Dr Amitava Roy told The Engineer.
‘Our manufacturing cost is 93 per cent lower than the current state of the art, based on what we have already done. Mass production could save another 25-50 per cent,’ he said.
So far RE has developed 50W, 150W and 1KW versions of the device for use in laboratories and for the bottled hydrogen market. A 5KW model is on the way thanks to the TSB, but the firm also intends to build 100KW units that can be used for industrial hydrogen production and energy harvesting.
Roy hopes the device’s low costs would make it useful for the energy industry to capture and store intermittent sources of electricity such as wind, as well as aiding power management for the national grid and for individual smart home systems. Read more
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