Large-vscale hydrogen production and storage technologies: Current status and future directions

A. G. Olabi*, Adel saleh bahri, Aasim Ahmed Abdelghafar, Ahmad Baroutaji, Enas Taha Sayed, Abdul Hai Alami, Hegazy Rezk, Mohammad Ali Abdelkareem*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Over the past years, hydrogen has been identified as the most promising carrier of clean energy. In a world that aims to replace fossil fuels to mitigate greenhouse emissions and address other environmental concerns, hydrogen generation technologies have become a main player in the energy mix. Since hydrogen is the main working medium in fuel cells and hydrogen-based energy storage systems, integrating these systems with other renewable energy systems is becoming very feasible. For example, the coupling of wind or solar systems hydrogen fuel cells as secondary energy sources is proven to enhance grid stability and secure the reliable energy supply for all times. The current demand for clean energy is unprecedented, and it seems that hydrogen can meet such demand only when produced and stored in large quantities. This paper presents an overview of the main hydrogen production and storage technologies, along with their challenges. They are presented to help identify technologies that have sufficient potential for large-scale energy applications that rely on hydrogen. Producing hydrogen from water and fossil fuels and storing it in underground formations are the best large-scale production and storage technologies. However, the local conditions of a specific region play a key role in determining the most suited production and storage methods, and there might be a need to combine multiple strategies together to allow a significant large-scale production and storage of hydrogen.

Original languageEnglish
Pages (from-to)23498-23528
Number of pages31
JournalInternational Journal of Hydrogen Energy
Issue number45
Early online date13 Nov 2020
Publication statusPublished - 1 Jul 2021


  • Hydrogen production
  • Hydrogen storage
  • Metal hydrides
  • Renewable energy
  • Underground hydrogen storage


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