Underground Hydrogen Storage: Transforming Subsurface Science into Sustainable Energy Solutions

As the global economy moves toward net-zero carbon emissions, large-scale energy storage becomes essential to tackle the seasonal nature of renewable sources. Underground hydrogen storage (UHS) offers a feasible solution by allowing surplus renewable energy to be transformed into hydrogen and stored...

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Main Authors: Kwamena Opoku Duartey, William Ampomah, Hamid Rahnema, Mohamed Mehana
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/18/3/748
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author Kwamena Opoku Duartey
William Ampomah
Hamid Rahnema
Mohamed Mehana
author_facet Kwamena Opoku Duartey
William Ampomah
Hamid Rahnema
Mohamed Mehana
author_sort Kwamena Opoku Duartey
collection DOAJ
description As the global economy moves toward net-zero carbon emissions, large-scale energy storage becomes essential to tackle the seasonal nature of renewable sources. Underground hydrogen storage (UHS) offers a feasible solution by allowing surplus renewable energy to be transformed into hydrogen and stored in deep geological formations such as aquifers, salt caverns, or depleted reservoirs, making it available for use on demand. This study thoroughly evaluates UHS concepts, procedures, and challenges. This paper analyzes the most recent breakthroughs in UHS technology and identifies special conditions needed for its successful application, including site selection guidelines, technical and geological factors, and the significance of storage characteristics. The integrity of wells and caprock, which is important for safe and efficient storage, can be affected by the operating dynamics of the hydrogen cycle, notably the fluctuations in pressure and stress within storage formations. To evaluate its potential for broader adoption, we also examined economic elements such as cost-effectiveness and the technical practicality of large-scale storage. We also reviewed current UHS efforts and identified key knowledge gaps, primarily in the areas of hydrogen–rock interactions, geochemistry, gas migration control, microbial activities, and geomechanical stability. Resolving these technological challenges, regulatory frameworks, and environmental sustainability are essential to UHS’s long-term and extensive integration into the energy industry. This article provides a roadmap for UHS research and development, emphasizing the need for further research to fully realize the technology’s promise as a pillar of the hydrogen economy.
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series Energies
spelling doaj-art-4cbe21bf7f69474aae609908c1f572142025-08-20T02:48:02ZengMDPI AGEnergies1996-10732025-02-0118374810.3390/en18030748Underground Hydrogen Storage: Transforming Subsurface Science into Sustainable Energy SolutionsKwamena Opoku Duartey0William Ampomah1Hamid Rahnema2Mohamed Mehana3Petroleum Recovery and Research Center, New Mexico Tech, Socorro, NM 87801, USAPetroleum Recovery and Research Center, New Mexico Tech, Socorro, NM 87801, USAPetroleum and Natural Gas Department, New Mexico Tech, Socorro, NM 87801, USAEarth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87544, USAAs the global economy moves toward net-zero carbon emissions, large-scale energy storage becomes essential to tackle the seasonal nature of renewable sources. Underground hydrogen storage (UHS) offers a feasible solution by allowing surplus renewable energy to be transformed into hydrogen and stored in deep geological formations such as aquifers, salt caverns, or depleted reservoirs, making it available for use on demand. This study thoroughly evaluates UHS concepts, procedures, and challenges. This paper analyzes the most recent breakthroughs in UHS technology and identifies special conditions needed for its successful application, including site selection guidelines, technical and geological factors, and the significance of storage characteristics. The integrity of wells and caprock, which is important for safe and efficient storage, can be affected by the operating dynamics of the hydrogen cycle, notably the fluctuations in pressure and stress within storage formations. To evaluate its potential for broader adoption, we also examined economic elements such as cost-effectiveness and the technical practicality of large-scale storage. We also reviewed current UHS efforts and identified key knowledge gaps, primarily in the areas of hydrogen–rock interactions, geochemistry, gas migration control, microbial activities, and geomechanical stability. Resolving these technological challenges, regulatory frameworks, and environmental sustainability are essential to UHS’s long-term and extensive integration into the energy industry. This article provides a roadmap for UHS research and development, emphasizing the need for further research to fully realize the technology’s promise as a pillar of the hydrogen economy.https://www.mdpi.com/1996-1073/18/3/748underground hydrogen storagegeochemical interactionshydrodynamicscushion gasmicrobial effects
spellingShingle Kwamena Opoku Duartey
William Ampomah
Hamid Rahnema
Mohamed Mehana
Underground Hydrogen Storage: Transforming Subsurface Science into Sustainable Energy Solutions
Energies
underground hydrogen storage
geochemical interactions
hydrodynamics
cushion gas
microbial effects
title Underground Hydrogen Storage: Transforming Subsurface Science into Sustainable Energy Solutions
title_full Underground Hydrogen Storage: Transforming Subsurface Science into Sustainable Energy Solutions
title_fullStr Underground Hydrogen Storage: Transforming Subsurface Science into Sustainable Energy Solutions
title_full_unstemmed Underground Hydrogen Storage: Transforming Subsurface Science into Sustainable Energy Solutions
title_short Underground Hydrogen Storage: Transforming Subsurface Science into Sustainable Energy Solutions
title_sort underground hydrogen storage transforming subsurface science into sustainable energy solutions
topic underground hydrogen storage
geochemical interactions
hydrodynamics
cushion gas
microbial effects
url https://www.mdpi.com/1996-1073/18/3/748
work_keys_str_mv AT kwamenaopokuduartey undergroundhydrogenstoragetransformingsubsurfacescienceintosustainableenergysolutions
AT williamampomah undergroundhydrogenstoragetransformingsubsurfacescienceintosustainableenergysolutions
AT hamidrahnema undergroundhydrogenstoragetransformingsubsurfacescienceintosustainableenergysolutions
AT mohamedmehana undergroundhydrogenstoragetransformingsubsurfacescienceintosustainableenergysolutions