Renewables

There is a very strong case for timing maximum green hydrogen production with periods of excess renewables energy production - rather than to curtail the renewables.

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To date the two main problems with co-locating electrolysers with renewables has been inability for electrolysers to respond fast enough to the intermittent solar and wind energy availability, as well as electrolysers often having a minimum load requirement of around 25%.

 

At AqGas we have developed flow-through electrolysers where the effects of minimum loading are minimal and there are no performance penalties from directly tying our electrolysers to the renewables. Our electrolysers therefore become flexible assets used to convert cheap imported and excess electricity into stored hydrogen.  Our comparatively lower CAPEX / per kg H2 means this production strategy becomes viable even where renewables production levels are less predictable.

 

As a case in point, during 2025 AqGas is creating a solar-to-hydrogen installation on the outskirts of Nottingham incorporating battery storage and grid-balancing services as well as plans for a larger demonstrator in Noida, India, using the same system setup.