Hydrogen storage, electrolysers and fuel cells: Cost-effective power management and microgrids

Renewable electricity production, mainly from solar and wind, increased considerably in the last two decades worldwide. Electricity from solar, wind, and hydro are subject to daily, weekly, and seasonal fluctuations.

The higher the penetration of renewables into the electricity grid, the more challenging it is to match supply and demand.

Pumped hydro is the classical way to overcome daily fluctuations. Nowadays, there is also an increase in large-scale battery storage projects. Nevertheless, the energy storage profile of these technologies is not appropriate to overcome extended periods of windless, sunless ‘dark-doldrums’ that persist in many locations over the course of a year.

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