Electrolyzer manufacturer response regarding the cost breakdown of different system components and their expert opinions regarding the likelihood for improvement was used to run H2A Production model case study simulations. This was done to determine roughly how the cost of hydrogen would be affected at different installation sizes if various improvements were made. These improvements might come directly in capital-cost reduction of some component of the electrolyzer or in system efficiency improvement. In the analysis, three topics were considered: (1) size scaled capital costs, (2) fixed O&M proportional to capital cost, and (3) electricity feedstock.
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