Abstract
Integrated wind power – hydrogen systems may make a useful contribution to achieving climate targets. Both centralised wind powered electrolysers and multi-MW decentralised solutions are likely to see multiple electrolyser units/systems deployed together. Since the efficiency of electrolysers is a function of their load factor, there is a possibility of optimising operation of the individual units in order to maximise the overall plant efficiency. Here we outline optimal strategies for electrolysis facilities with two, three and four independent units, and find that using these optimised strategies can increase annual wind powered hydrogen production by 2.3 - 3.8%, depending on the specific set up. By quantifying the increase in hydrogen production through using optimised control strategies, this research can help industry to identify the best overall control scheme for electrolyser plants composed of multiple units.
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