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…electrolyser, alkaline OH- ions diffuse. In a PEM electrolyser, protons, H+ ions, diffuse. Ten fundamental differences follow. The lowest cost green hydrogen will come from alkaline electrolysers run at high…
…our electrolyser cost model, and the numbers can be stress-tested in this data-file. The key challenge with Nafion and other PFSA membranes in a hydrogen electrolyser is hydrogen crossover. For…
…and described in detail, explaining how dynamic loading has been linked to the degradation of electrolysers. Total stoppages of electrolysers may be a driver of degradation, and require further back-ups…
…of precious metals (especially platinum) and thinner membranes at higher temperatures, which in turn could improve output and efficiency, and thus deflate electrolyser costs (details in the data-file). Thinner-and-higher-temperature-membranes-allow-for-higher-current-density-at-electrolysers Generally…
…green, and fully powered by renewables. Our base case input assumption for the cost of a hydrogen electrolyser is around $1,000/kW. We do expect electrolyser costs to deflate. However we also…
…electrolyser costs line by line and wonder whether 15-25% deflation is more realistic (note here). Alkaline electrolysers vs PEMs are contrasted here. We have recently screened NEL’s patents to explore…
NEL is a green hydrogen technology company, headquartered in Oslo, listed since 2014, and employing 575 people. It has manufactured 3,500 electrolyser units, going back to 1927, historically weighted to…
…https://thundersaidenergy.com/downloads/co2-emissions-from-batteries-when-do-evs-break-even/ Green hydrogen: what implications? The blending of RECs with green hydrogen could become a minefield of complexity. For example, imagine a hydrogen electrolyser that is powered by a wind…
…(This multiple may be worth keeping in mind amidst debate about hydrogen electrolyser costs. Some companies have been guiding to $200-300/kWe electrolyser selling prices, and some analysts noting that this…
…other green hydrogen electrolyser economics. Another $3/mcf of the cost is from sourcing CO2 from an amine plant, or you could source the CO2 from direct air capture. Total energy…