An overview on the technologies used to store hydrogen

Hydrogen energy has a significant potential in mitigating the intermittency of renewable energy generation, by converting the excess of renewable energy into hydrogen through many technologies. Also, hydrogen is expected to be used as an energy carrier that contribute to the global decarbonization in transportation, industrial, and building sectors. Many technologies have been developed to store hydrogen energy. Hydrogen can be stored to be used when needed and thus synchronize generation and consumption. The current paper presents a review on the different technologies used to store hydrogen. The storage capacity, advantages, drawbacks, and development stages of various hydrogen storage technologies were presented and compared.