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Safe underground Hydrogen storage IN porous subsurface rEservoirs (SHINE)

Lead Research Organisation: University of Edinburgh
Department Name: Sch of Geosciences

Abstract

Hydrogen is attracting global attention as a key future low-carbon energy carrier which could replace hydrocarbon usage in transport and fuel-intensive industry. However, to supply energy in the TWh-range necessary for Net Zero it requires storage at much larger volumes than the currently deployed surface tanks or cavern storage. The next solution for large-scale hydrogen storage are porous saline aquifers and depleted hydrocarbon fields. This perspective is scientifically attractive but remains technically challenging given the lack of active hydrogen storage knowledge and experience. The main target of the SHINE consortium is to explore the feasibility and address technical, geological, and hydrogeological challenges related to hydrogen storage across subsurface porous reservoirs.
SHINE will bring together 5 leading universities and research groups, from five European countries, and 5 industrial partners to deliver new training and research skills to 10 young scientists. SHINE aims at providing this next generation of scientists with technical and transferable skills to integrate geosciences, engineering, and microbiology techniques to find solutions to existing open questions in hydrogen storage technologies. Our novel approach is to integrate analytical, monitoring, and computing techniques to explore how hydrogen may react with the subsurface minerals, fluids, and microbial community potentially affecting the storage operations; model the stress field changes across hydrogen reservoir/caprocks, and monitor its geomechanical response during repeated injection/production cycles. The expertly trained cohort of young research scientists resulting from the SHINE consortium will therefore radically improve our understanding of this technology, implement and de-risk its application to potential projects providing the necessary insights into underground hydrogen storage for decision-makers in government and industry and contribute actively to the EU transition energy
 
Title Infographic: Routes to Market for Hydrogen Storage in the UK's East Coast Region 
Description The "Routes to Market for Hydrogen Storage in the UK's East Coast Region" infographic was developed in collaboration with Scriberia and Arup, combining data-driven insights with creative design to communicate the strategic importance of hydrogen storage infrastructure in the region. This visually compelling resource presents key geological storage sites, infrastructure readiness, and commercial pathways for hydrogen deployment, supporting the East Coast Cluster's role in the UK's hydrogen economy. By translating complex scientific and economic data into an accessible format, the infographic serves as an educational and engagement tool for a diverse audience, including policy-makers, industry leaders, and the public. The collaboration with Scriberia (for visual storytelling) and Arup (for infrastructure and market analysis) has ensured that the infographic is both scientifically rigorous and commercially relevant, making it a significant creative product that bridges research, policy, and industry. 
Type Of Art Artwork 
Year Produced 2024 
Impact Policy & Strategic Influence The infographic has been used in policy discussions, stakeholder briefings, and industry workshops, shaping UK hydrogen storage strategy and investment pathways. Its clear, engaging design has helped simplify complex regulatory and market frameworks, ensuring that key decision-makers can act on evidence-based insights. Business & Industry Impact Collaboration with Arup has enhanced industry engagement in hydrogen storage projects, with the infographic contributing to Arup's business development in hydrogen infrastructure consultancy. The visual framework has been leveraged to demonstrate expertise to clients, investors, and policymakers, helping position Arup as a leader in hydrogen storage infrastructure planning. Public Engagement & Knowledge Sharing The infographic has been widely shared via academic channels, industry networks, and public forums, increasing awareness and understanding of hydrogen storage solutions. By making scientific concepts more accessible, it has stimulated public interest and engagement in hydrogen as a key component of the UK's net-zero ambitions. Cross-Sector Collaboration The project has fostered stronger connections between academia, industry, and creative professionals, demonstrating the value of visual storytelling in energy transition research. The success of this collaboration has led to discussions on further knowledge-sharing projects between the University of Edinburgh, Arup, and visual communication specialists. This innovative infographic has proven to be a high-impact tool, influencing policy, business strategy, and public engagement, while reinforcing the University of Edinburgh's role as a leader in hydrogen storage research and supporting the commercial success of Arup in the hydrogen market. 
URL https://blogs.ed.ac.uk/geological-hydrogen-storage-east-coast-cluster/
 
Description Commercial Hydrogen Economy and Underground Hydrogen Storage Courses
Geographic Reach Multiple continents/international 
Policy Influence Type Influenced training of practitioners or researchers
Impact Evidence of Reach and Impact Professional Development: Participants have enhanced their competencies in hydrogen technologies, geological storage methods, and regulatory considerations, enabling them to contribute effectively to hydrogen-related projects within their organizations. Industry Application: Organizations have applied knowledge gained from these courses to develop and implement hydrogen strategies, optimize storage solutions, and navigate the regulatory landscape, thereby advancing their roles in the energy transition. Policy and Regulation: Course attendees involved in policy-making and regulatory bodies have utilized insights from the training to inform the development of frameworks that support safe and efficient hydrogen production, storage, and distribution. Academic Contributions: The courses have fostered collaborations between academia and industry, leading to research initiatives and publications that address critical challenges in the hydrogen sector. Global Engagement: By offering courses accessible to professionals across North America and Europe, the training has promoted international knowledge exchange and harmonization of best practices in the hydrogen economy. Through these targeted training programs, Professor Edlmann has significantly contributed to building capacity within the energy sector, facilitating the adoption of hydrogen technologies, and supporting the global transition to a low-carbon future.
URL https://www.geologicaworld.com/courses/the-hydrogen-landscape-production-policy-and-regulation-e575/
 
Description HAC Transport and Storage Infrastructure Working Group
Geographic Reach National 
Policy Influence Type Participation in a guidance/advisory committee
Impact Description of the Policy Influence and Changes Arising Professor Katriona Edlmann serves as an expert advisor on hydrogen storage within the Hydrogen Advisory Council (HAC) Transport and Storage Infrastructure Working Group, which advises the UK Department for Energy Security and Net Zero (DESNZ) on the development of hydrogen storage and transport infrastructure business models. Her contributions focus on assessing the feasibility, security, and scalability of underground hydrogen storage in depleted gas fields, salt caverns, and lined rock caverns. By integrating technical expertise with policy insights, she has played a critical role in shaping UK hydrogen storage regulations, risk assessment frameworks, and infrastructure investment strategies. Evidence of Reach and Impact Direct Contributions to UK Hydrogen Business Models Professor Edlmann's expertise has informed the Hydrogen Storage Business Model (HSBM) framework, which outlines the UK's approach to incentivizing investment in hydrogen storage. This has influenced policy decisions on regulatory mechanisms, investment support, and market incentives to enable large-scale hydrogen storage deployment. Input into DESNZ Reports and Consultations Her advisory role has contributed to key UK Government reports and consultations, including: UK Hydrogen Strategy Updates, which assess the role of geological hydrogen storage in enabling a secure hydrogen supply. Hydrogen Transport & Storage Consultation (DESNZ), shaping funding mechanisms and regulatory approaches to accelerate infrastructure deployment. Consultation on the Hydrogen Storage Business Model (HSBM), providing technical insights into storage integrity, scalability, and commercial viability. Impact on Industry and Investment Decisions The policies shaped through the HAC Working Group directly impact hydrogen storage infrastructure investment in the UK, guiding energy companies, regulators, and investors on risk mitigation, storage site selection, and integration with renewable energy. Engagement with Key Stakeholders Through this role, Professor Edlmann has engaged with government policymakers, energy industry leaders, and regulatory bodies, ensuring that scientific evidence and real-world storage challenges inform national hydrogen infrastructure planning. Wider Influence and Long-term Implications Her contributions to the HAC Transport and Storage Infrastructure Working Group are helping to establish a secure and investable hydrogen storage network in the UK, supporting: Net Zero commitments by ensuring reliable large-scale hydrogen storage solutions. Energy security by addressing storage capacity needs for long-term hydrogen supply stability. Industry growth by shaping a regulatory framework that encourages private sector investment in storage infrastructure. Through her advisory role, Professor Edlmann's expertise has directly shaped UK hydrogen storage policy, ensuring that scientifically robust, economically viable, and scalable storage solutions are embedded into national energy strategy and investment planning.
URL https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1175...
 
Description Ongoing engagement and training for DESNZ, HSE, EA and NSTA
Geographic Reach National 
Policy Influence Type Influenced training of practitioners or researchers
Impact Evidence of Reach and Impact Influence on UK Hydrogen Policy and Regulatory Standards Professor Edlmann's expertise has contributed to policy discussions and strategic planning within DESNZ, HSE, and NSTA, particularly in shaping the UK's Hydrogen Storage Business Model (HSBM). Directly influenced key UK Government reports and regulatory guidance on hydrogen storage risk assessment, infrastructure planning, and safety regulations. Her contributions have supported policy alignment across departments, ensuring a cohesive and science-based approach to hydrogen storage development. Citations in Key Government Reports Her research has been referenced in multiple UK Government and Scottish Government reports, including: UK Parliamentary Office of Science and Technology (POST) research briefings: Low-Carbon Hydrogen Supply Long Duration Energy Storage Scottish Government Reports: Scottish Government Hydrogen Policy Statement (Dec 2021) Scottish Hydrogen Assessment Report (Dec 2020) These reports have been used to inform government decision-making on hydrogen deployment, funding mechanisms, and regulatory frameworks. Capacity Building Across Multiple Government Departments Training provided to multiple teams within DESNZ, HSE, and NSTA has significantly improved regulatory understanding of underground hydrogen storage and infrastructure challenges. These sessions have enabled policymakers and regulators to develop more informed and scientifically sound policies, reducing uncertainties in hydrogen storage implementation. Impact on Industry and Public Sector Decision-Making The technical training and engagement with policymakers have supported greater industry confidence in hydrogen storage regulations, facilitating investment in infrastructure and technology development. Through ongoing engagement, Professor Edlmann has helped shape industry best practices, ensuring that the UK's hydrogen economy develops in a safe, efficient, and scalable manner.
 
Description B-Linepack+
Amount £50,000 (GBP)
Funding ID 10102109 
Organisation Innovate UK 
Sector Public
Country United Kingdom
Start 03/2024 
End 05/2024
 
Description EU Clean hydrogen partnership HyDRA Diagnostic Tools and Risk Protocols to Accelerate Underground Hydrogen Storage
Amount € 3,000,000 (EUR)
Funding ID Grant Agreement: 101192337 
Organisation University of Bergen 
Sector Academic/University
Country Norway
Start 01/2025 
End 12/2027
 
Description Exploring Geological Hydrogen Storage Opportunities for the East Midlands (EMStor)
Amount £350,000 (GBP)
Funding ID 10105025 
Organisation Innovate UK 
Sector Public
Country United Kingdom
Start 03/2024 
End 05/2024
 
Title Salt Cavern Hydrogen Storage Tool 
Description The IDRIC Salt Cavern Hydrogen Storage Tool is a PowerBI dashboard developed as part of the Industrial Decarbonisation Research & Innovation Centre (IDRIC) Project: Assessing the Regional Demand for Geological Hydrogen Storage, completed in February 2024. This tool is designed to facilitate the development of salt cavern hydrogen storage in the UK's East Coast region by: Identifying suitable locations for salt cavern development based on user-defined criteria. Evaluating storage capacities and potential integration with existing energy infrastructure. Supporting early planning and exploration phases by providing a comprehensive overview of geological and infrastructural factors. The tool is hosted on GitHub 
Type Of Material Computer model/algorithm 
Year Produced 2024 
Provided To Others? Yes  
Impact Notable Impacts of the Model Enhancing Strategic Planning for Hydrogen Storage The tool has been utilized by energy companies and infrastructure planners to identify optimal sites for salt cavern hydrogen storage, aligning with the UK's decarbonization goals. By providing a clear visualization of potential storage sites, the tool aids in strategic decision-making and investment planning. Supporting Research and Development Researchers and academic institutions have employed the tool to analyze geological suitability and to model the integration of hydrogen storage within the broader energy system. The tool's data-driven approach facilitates innovative research into the scalability and feasibility of hydrogen storage solutions. Informing Policy and Regulatory Frameworks Policy-makers and regulators have referenced the tool to understand the regional potential for hydrogen storage, informing the development of supportive policies and regulations. The insights provided by the tool contribute to the creation of a robust regulatory environment that encourages investment in hydrogen infrastructure. Promoting Industry Collaboration The tool has served as a platform for collaboration among industry stakeholders, fostering partnerships aimed at advancing hydrogen storage projects. By offering a shared resource, the tool encourages knowledge exchange and coordinated efforts in the energy sector. The Salt Cavern Hydrogen Storage Tool exemplifies the integration of data analytics and geospatial information to support the UK's transition to a low-carbon energy system, demonstrating significant impacts across industry, research, and policy domains. 
URL https://github.com/christian-garvey/idric-salt-cavern-hydrogen-storage
 
Title UK Hydrogen Storage Database 
Description The UK Hydrogen Storage Database is an open-access GIS database that provides a comprehensive assessment of hydrogen storage potential in geological formations across the UK. The database includes information on: i) Lined rock caverns, salt caverns, and depleted gas fields, highlighting their suitability for hydrogen storage. ii) Storage locations, capacities, and integrity factors, ensuring a detailed evaluation of hydrogen storage feasibility. iii) Integration with wider energy infrastructure, including oil and gas assets, renewable energy developments, demand centres, and environmental constraints. This spatially integrated dataset allows users to visualise and assess how geological storage options align with current and future energy system needs, facilitating strategic planning for hydrogen deployment and infrastructure development. The database is freely accessible via the University of Edinburgh's online portal. However, some third-party datasets incorporated into the GIS system (e.g., oil and gas infrastructure data) may have licensing restrictions, and users should refer to specific terms of use when integrating external data. The dataset follows UK data governance policies to ensure compliance with regulatory and ethical standards. 
Type Of Material Database/Collection of data 
Year Produced 2024 
Provided To Others? Yes  
Impact The UK Hydrogen Storage Database has been widely adopted by key stakeholders, including The Crown Estate, the UK Department for Energy Security and Net Zero (DESNZ), the Scottish Government, and industry regulators, demonstrating its real-world impact in policy and energy planning. Notable outcomes include: Informing UK Hydrogen Strategy & Policy Development The database has been used by government agencies and policymakers to support decision-making on hydrogen storage infrastructure, aligning with the UK's Net Zero strategy. Provides critical evidence to DESNZ for evaluating the strategic role of hydrogen storage in the national energy mix. Supporting Industry & Regulatory Planning Used by The Crown Estate and regulatory bodies to assess the feasibility of repurposing depleted gas fields and salt caverns for hydrogen storage. Helps energy companies and infrastructure developers in identifying optimal storage locations and integrating hydrogen into existing energy systems. Facilitating Research & Innovation The database is actively being used by research groups across academia and industry to advance hydrogen storage modelling, infrastructure planning, and techno-economic analysis. Supports new research into geological storage risks, infrastructure integration, and large-scale deployment of hydrogen. Enhancing Public & Industry Awareness The open-access nature of the database ensures that researchers, policymakers, and the wider public can engage with geospatial hydrogen storage data, promoting transparency and knowledge sharing. This dataset has become a foundational tool in the UK's hydrogen energy transition, directly influencing policy frameworks, industry strategies, and academic research. It continues to drive collaborative efforts between government, academia, and industry to accelerate hydrogen storage deployment across the UK. 
URL https://geosciences.ed.ac.uk/research/institutes-centres/institutes/earth-planetary-science/edinburg...
 
Description EU StoRIES transnational laboratory collaborations (HyStore-A project) 
Organisation Netherlands Organization for Applied Scientific Research (TNO)
Country Netherlands 
Sector Public 
PI Contribution The University of Edinburgh team, led by Professor Katriona Edlmann, contributed significant expertise in underground hydrogen storage, geomechanical integrity, and porous reservoir rock analysis. The research aimed to assess the impact of cyclic hydrogen injection and withdrawal on the geomechanical stability of reservoir rock, addressing a key knowledge gap in hydrogen storage feasibility. The team designed the experimental framework, provided the necessary rock samples, and conducted pre-experimental petrophysical and geomechanical characterization at the Applied Geoscience Laboratory in Edinburgh. Additionally, they leveraged their extensive background in hydrogen-related research to interpret the data, ensuring the findings would be applicable to real-world underground storage scenarios. The University of Edinburgh team also provided hands-on training for PhD students involved in the project, particularly in sample preparation and geomechanical analysis. This training has directly contributed to capacity building in underground hydrogen storage research, fostering expertise that will benefit both academic and industrial sectors.
Collaborator Contribution TNO, as the host institution, provided access to its state-of-the-art Geomechanical Laboratory within the Geoscience and Technology (GST) Department. Their infrastructure enabled high-pressure triaxial testing under reservoir-relevant stress conditions, replicating cyclic loading scenarios encountered in underground hydrogen storage. TNO's team contributed their expertise in geomechanical testing methodologies, optimizing the experimental protocol to assess how hydrogen exposure and stress cycling influence the mechanical properties of porous reservoir rocks. By facilitating access to specialized equipment, including high-pressure environmental triaxial testing systems, TNO enabled the Edinburgh team to validate their hypotheses under realistic storage conditions. Furthermore, TNO researchers collaborated closely in data interpretation, ensuring that the insights gained from the experiments could directly inform ongoing hydrogen storage feasibility studies. The collaboration has also paved the way for future joint research initiatives, reinforcing the strategic research partnership between the institutions.
Impact This collaboration between the University of Edinburgh and TNO has led to first-of-their-kind experiments investigating the geomechanical response of porous reservoirs to cyclic hydrogen injection and withdrawal. The outputs from this work are shaping the future of underground hydrogen storage by providing critical new insights into the mechanical stability of storage sites, ensuring that hydrogen can be safely and efficiently injected, stored, and extracted from depleted gas fields. A major outcome of this collaboration has been the development of a new experimental methodology that enables more accurate and reliable assessments of subsurface hydrogen storage integrity. This methodology provides an advanced approach for evaluating the mechanical behavior of porous rock under dynamic hydrogen storage conditions, setting a new benchmark for industry and regulatory assessments. Future Prospects Scientific Advancement & Knowledge Dissemination A collaborative research paper is currently in preparation, detailing the new methodology and key experimental findings, ensuring that the research is accessible to scientists, engineers, and policymakers working in the field of hydrogen storage. The results will be presented at leading international conferences and shared with industry stakeholders, influencing best practices in hydrogen storage site selection, monitoring, and risk mitigation. Industry Application & Regulatory Influence The new testing methodology developed through this collaboration has direct implications for industry, providing better predictive capabilities for hydrogen storage sites. The experimental workflows established will now be expanded to field-scale validation, supporting operators in assessing reservoir suitability and optimizing hydrogen storage operations. Insights from this work will feed into policy discussions on underground hydrogen storage regulations, particularly in Europe, the UK, and globally, ensuring that hydrogen storage projects are designed and managed with robust geomechanical risk assessments in place. Strengthening Collaboration & Future Research Initiatives The success of HyStoreA has reinforced the research partnership between the University of Edinburgh and TNO, leading to discussions on further joint projects and funding applications. Future research will focus on scaling up these experiments, incorporating longer-term hydrogen exposure studies, integrating advanced numerical modeling, and testing the response of different geological formations. The methodologies and datasets generated in this project will contribute to broader hydrogen storage research efforts under initiatives such as the EU Clean Hydrogen Partnership and other international hydrogen storage consortia.
Start Year 2024
 
Description EU StoRIES transnational laboratory collaborations (HyStore-B project) 
Organisation Netherlands Organization for Applied Scientific Research (TNO)
Country Netherlands 
Sector Public 
PI Contribution The University of Edinburgh's team, led by Professor Katriona Edlmann, contributed critical expertise in hydrogen storage geomechanics and wellbore integrity, supporting the collaboration with TNO through experimental design, sample preparation, and hydrogen exposure studies. The research focused on assessing the geomechanical stability of well-cement bonds within porous reservoirs during cyclic hydrogen injection and withdrawal. The University of Edinburgh provided access to its world-class Applied Geoscience Laboratory, where the initial characterization, hydrogen exposure, and conditioning of reservoir rock and well-cement samples were undertaken. The team also brought extensive knowledge of underground hydrogen storage, leveraging their prior research experience in geochemical and mechanical interactions within subsurface reservoirs. Additionally, the University of Edinburgh researchers developed key methodologies for evaluating stress-induced changes in wellbore integrity and worked closely with TNO to integrate their findings into a broader European research agenda.
Collaborator Contribution TNO played a crucial role in this collaboration by providing access to its advanced Geomechanical Laboratory, which enabled state-of-the-art triaxial deformation testing under cyclic loading to simulate the operational conditions of underground hydrogen storage in porous reservoirs. The TNO team contributed significant expertise in rock mechanics and reservoir geomechanics, facilitating high-precision experiments that assessed well-cement bonding under realistic subsurface stress conditions. Their laboratory facilities allowed for controlled cyclic pressure variations to be applied to hydrogen-exposed samples, providing valuable data on mechanical integrity, permeability changes, and acoustic properties. TNO's insights into the mechanical behavior of reservoir materials under hydrogen exposure were instrumental in refining experimental approaches and ensuring the research outputs were directly applicable to real-world hydrogen storage challenges. This collaboration has laid the groundwork for future joint research efforts, including additional experimental campaigns, joint publications, and potential funding applications in the field of hydrogen storage integrity.
Impact This collaboration between the University of Edinburgh and TNO has resulted in first-of-their-kind experiments, producing novel insights into the geomechanical integrity of well-cement bonds under cyclic hydrogen injection and withdrawal. The research has led to the development of a new methodology for assessing mechanical stability and permeability changes in wellbore environments exposed to hydrogen, filling a critical knowledge gap in underground hydrogen storage feasibility studies. The findings from this collaboration are directly applicable to real-world hydrogen storage operations, particularly for repurposing depleted gas fields for long-term hydrogen storage. By developing a robust experimental framework and validating new testing approaches, this research has enhanced the ability to predict and mitigate potential storage risks, ensuring safer and more efficient hydrogen injection, withdrawal, and long-term containment. Future Prospects Collaborative Publications & Knowledge Dissemination A joint research paper is currently in preparation, which will disseminate the new methodology and experimental findings to the wider hydrogen storage research community. The results will be presented at key international conferences and shared with industry stakeholders and policymakers to influence best practices for hydrogen storage integrity assessments. Methodology Adoption & Industry Application The newly developed experimental methodology is expected to become a benchmark approach for evaluating wellbore integrity in hydrogen storage sites, informing industry standards and regulatory frameworks. The experimental workflows established in this collaboration will now be extended to further studies, including investigations into variable reservoir conditions, different wellbore cement formulations, and long-term hydrogen exposure effects. Further Collaborative Research & Funding Applications The success of this collaboration has strengthened ties between the University of Edinburgh and TNO, paving the way for future joint research projects and grant applications within the EU Clean Hydrogen Partnership and other international funding schemes. Discussions are ongoing regarding scaling up these experiments, integrating numerical modeling and field-scale validation through future collaborative research programs. This work has significantly advanced the scientific understanding of wellbore integrity in underground hydrogen storage and positioned the University of Edinburgh and TNO at the forefront of subsurface hydrogen storage research. By establishing new methodologies, building strong research networks, and creating pathways for industry adoption, this collaboration represents a major step forward in ensuring the safe and scalable deployment of hydrogen storage technologies in porous reservoirs.
Start Year 2024
 
Description Hosting visiting PGR student from University of Naples (Guisy Anzelmo) 
Organisation University of Naples
Country Italy 
Sector Academic/University 
PI Contribution Professor Katriona Edlmann and her research team hosted and provided significant intellectual input, technical training, and access to world-class experimental facilities to support Giusy Anzelmo, a visiting PhD student from the University of Naples. The collaboration focused on an integrated approach to hydrogen storage in a salt mine, using the Realmonte salt mine in Sicily, Italy, as a case study. Key contributions from Professor Edlmann and her team included: Expertise and Research Direction: Helped refine the research focus on hydrogen storage mechanisms in salt caverns, ensuring alignment with key technical and policy challenges in large-scale underground hydrogen storage. Provided scientific mentorship on hydrogen geochemistry, geomechanics, and salt cavern integrity assessments. Supported data interpretation and integration of experimental findings into numerical models. Training and Access to Advanced Experimental Facilities: Delivered technical training on high-pressure, high-temperature experimental techniques for studying hydrogen behavior in salt formations. Enabled access to cutting-edge lab facilities at the Applied Geoscience Laboratory, University of Edinburgh, for experimental work related to hydrogen injection, withdrawal, and storage stability. Assisted in applying state-of-the-art geochemical and imaging techniques to assess hydrogen-rock interactions within salt formations. Cross-Disciplinary Integration and Knowledge Sharing: Integrated Giusy into research discussions and lab group meetings, fostering cross-disciplinary learning. Encouraged participation in scientific conferences, workshops, and networking events, helping to enhance the student's career development and academic collaborations. This partnership expanded the University of Edinburgh's engagement in salt cavern hydrogen storage research, reinforcing its role in advancing experimental studies on large-scale hydrogen storage solutions.
Collaborator Contribution The University of Naples and Giusy Anzelmo brought specialist expertise in underground hydrogen storage, salt cavern integrity, and numerical modeling, contributing valuable insights to the collaboration. Key contributions from the visiting researcher and institution included: Specialist Knowledge and Research Framework: Provided technical expertise in salt cavern behavior, rock mechanics, and geochemical interactions with hydrogen. Shared insights from ongoing studies on Realmonte salt mine (Sicily, Italy), contributing real-world geological data to validate experimental findings. Contributed hydro-geomechanical modeling expertise to assess storage feasibility and hydrogen migration risks. Access to External Research Data & Comparative Studies: Integrated datasets from field studies and past research on salt cavern storage, supporting a comprehensive evaluation of Realmonte's suitability for hydrogen storage. Helped compare experimental results with natural and engineered storage conditions, strengthening model validation. Future Collaboration and Knowledge Exchange: The collaboration has paved the way for future joint research, including potential co-authored publications and joint funding applications. Strengthened research ties between the University of Naples and the University of Edinburgh, contributing to long-term partnerships in underground hydrogen storage research. This partnership enhanced knowledge transfer between experimental and field-scale studies, supported the development of best practices for hydrogen storage in salt caverns, and contributed to the global research agenda on large-scale hydrogen storage solutions.
Impact Presented at EGU 2024 "Integrated approach for hydrogen storage in a salt mine: the case of Realmonte, Sicily (Italy)" https://ui.adsabs.harvard.edu/abs/2024EGUGA..26.9198A/abstract
Start Year 2023
 
Description Hosting visiting PGR student from University of Naples (Martina Cascone) 
Organisation University of Naples
Country Italy 
Sector Academic/University 
PI Contribution Professor Katriona Edlmann and her research team hosted and provided substantial intellectual input, technical training, and access to laboratory facilities to support Martina Cascone, a visiting PhD student from the University of Naples. Martina's research focuses on hydrogenotrophic metabolisms in the subsurface and their implications for underground hydrogen storage and natural hydrogen prospecting. Her key contributions to the collaboration included: Expertise and Research Supervision: Provided scientific guidance on subsurface microbial interactions in the context of hydrogen storage and natural hydrogen prospecting. Assisted in refining experimental design and data analysis techniques to assess microbial consumption of hydrogen in geological settings. Advised on the integration of microbial studies with geochemical and reservoir modeling approaches, strengthening the broader research impact. Technical Training and Laboratory Support: Facilitated access to high-pressure, high-temperature experimental facilities at the Applied Geoscience Laboratory, enabling Martina to conduct hydrogen-microbe interaction experiments under realistic subsurface conditions. Supported the use of advanced geochemical and microbiological techniques, contributing to a comprehensive understanding of microbial influences on hydrogen storage integrity. Provided training in analytical methodologies for microbial activity monitoring, including gas chromatography, isotope analysis, and microbial community profiling. Cross-Disciplinary Integration and Knowledge Transfer: Introduced Martina's expertise in microbiology into the University of Edinburgh's hydrogen storage research, bridging a critical knowledge gap. Integrated Martina into ongoing discussions with geochemistry, microbiology, and geomechanics researchers, fostering a multi-disciplinary approach to underground hydrogen storage challenges. Strengthened ties between the microbiology and geosciences teams, creating new research synergies. This collaboration has directly enhanced the University of Edinburgh's hydrogen storage research, particularly in microbial risk assessment, and expanded experimental capabilities in biogeochemical interactions.
Collaborator Contribution he University of Naples and Martina Cascone brought critical microbiological expertise, field data, and new methodologies, which have significantly contributed to advancing hydrogen storage research at the University of Edinburgh. Key contributions from the visiting researcher and institution included: Specialist Microbiological Knowledge: Brought unique expertise in hydrogenotrophic metabolisms and their role in subsurface hydrogen cycling, helping refine risk assessments for underground hydrogen storage projects. Introduced novel experimental approaches to quantify microbial hydrogen consumption rates under different geochemical conditions. Provided insights into microbial activity in natural hydrogen systems, which informed research on reservoir screening and hydrogen exploration strategies. Collaborative Support for PhD Research at Edinburgh: Martina's microbiology expertise was instrumental in supporting Bethan Payne, a PhD student in Geosciences, whose research focuses on microbial interactions during nuclear waste storage. This unexpected cross-disciplinary collaboration between hydrogen storage and nuclear waste containment research has led to new joint research avenues and experimental approaches. Expanding Research Networks and Future Collaborations: The collaboration has resulted in new research questions and experimental strategies, which will inform future funding applications and joint publications. Strengthened ties between the University of Naples and the University of Edinburgh, facilitating long-term academic and industry collaborations in subsurface microbiology and hydrogen storage research. This collaboration has significantly advanced microbial risk assessments for underground hydrogen storage, while also bridging geosciences and microbiology expertise to enhance nuclear waste storage research-a major unforeseen but valuable outcome of this partnership.
Impact A collaborative paper has been written and currently available as a pre-print "Hydrogenotrophic metabolisms in the subsurface and their implications for underground hydrogen storage and natural hydrogen prospecting https://eartharxiv.org/repository/view/8350/
Start Year 2023
 
Description SHINE Consortium Expansion and Successful EU Clean Hydrogen Partnership Bid - HyDRA (Grant Agreement: 101192337) 
Organisation University of Bergen
Country Norway 
Sector Academic/University 
PI Contribution Contributions Made by Professor Edlmann and Her Research Team Professor Katriona Edlmann played a central role in initiating, designing, and securing funding for the successful HyDRA project, funded under the EU Clean Hydrogen Partnership (HORIZON-JTI-CLEANH2-2024-02-01). This project builds upon the SHINE (Safe underground Hydrogen storage IN porous subsurface rEservoirs) consortium, expanding its scope and bringing together a wider network of collaborators to advance underground hydrogen storage (UHS) research and deployment. Her key contributions to the collaboration included: Project Instigation and Leadership: Identified the strategic opportunity to expand the SHINE consortium and led the development of a wider research partnership. Pulled together the HyDRA consortium, bringing in key academic, industry, and policy stakeholders to strengthen the proposal. Ensured that the proposal aligned with EU hydrogen strategy priorities, increasing its competitiveness for funding. Research Design and Methodology Development: Defined the research objectives for assessing the feasibility, integrity, and operational challenges of underground hydrogen storage. Designed experimental and numerical modeling approaches, integrating geochemical, microbiological, and geomechanical risk assessments. Leveraged the full capability of the Applied Geoscience Laboratory at the University of Edinburgh to support high-pressure, high-temperature hydrogen storage experiments. Grant Writing and Coordination: Coordinated the bid submission, significantly contributing to the proposal writing, technical justifications, and work package structure. Integrated partner contributions, ensuring a coherent and high-impact research plan.
Collaborator Contribution The HyDRA consortium brought together a diverse group of partners from academia, industry, and policy organizations, each contributing critical expertise and resources to the project's success. Key contributions from partners included: Specialized Research Expertise: Academic institutions provided geological, geochemical, geomechanical, and microbiological expertise to assess hydrogen storage integrity and operational feasibility. Industry partners contributed knowledge on real-world hydrogen infrastructure needs, ensuring that the research outcomes are directly applicable to commercial-scale hydrogen storage projects. Access to Experimental and Field Data: Several partners provided experimental facilities and test sites, allowing the project to validate underground hydrogen storage concepts under realistic conditions. Field data from existing hydrogen storage pilot projects were integrated to enhance model validation and risk assessment methodologies. Numerical Modelling and Simulation Capabilities: Partners with expertise in reservoir modeling and computational fluid dynamics developed advanced numerical simulations to predict hydrogen behavior in subsurface reservoirs. These models were used to optimize storage conditions, assess operational risks, and inform regulatory frameworks. Industry and Policy Engagement: Policy-focused partners facilitated engagement with regulatory bodies, ensuring that research findings are aligned with hydrogen storage policy and market needs. Industry stakeholders provided insights into market dynamics, business models, and commercialization pathways, helping to position the research for real-world impact. Collaborative Research and Knowledge Exchange: The consortium fostered strong interdisciplinary collaboration, leading to the development of joint publications, conference presentations, and technical reports. Cross-sector knowledge sharing has enabled rapid progress in addressing key technical and regulatory challenges for underground hydrogen storage.
Impact Project just began at the start of 2025.
Start Year 2024
 
Description Contributed to organising the 2nd International Summer School in Underground Hydrogen Storage - TUDELFT 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact n July 2023, Professor Katriona Edlmann played a key role in the 2nd International Summer School on Underground Hydrogen Storage (UHS), hosted by TU Delft. This hybrid event brought together researchers, industry professionals, and policymakers to address the technical, economic, and regulatory challenges associated with large-scale hydrogen storage in underground geological formations.

Event Link:
https://www.tudelft.nl/en/ceg/about-faculty/departments/geoscience-engineering/research/subsurface/2nd-international-summer-school-for-underground-hydrogen-storage

Professor Edlmann's Contributions
Scientific Committee Member & Organizer:

Contributed to the planning and structure of the summer school curriculum, ensuring a balanced coverage of geoscience, engineering, and policy aspects of underground hydrogen storage.
Content Delivery:

Delivered expert lectures and facilitated discussions on key topics such as:
Geological storage feasibility
Thermo-hydrodynamic and geochemical interactions
Microbial risks and geomechanical integrity
Advanced characterization and monitoring techniques
Educational Resource Development:

Developed specialist lecture materials and case studies to provide participants with an in-depth understanding of underground hydrogen storage technologies and best practices.
Program Booklet with Full Course Details:
https://filelist.tudelft.nl/CiTG/Over%20faculteit/Afdelingen/Geoscience%20Engineering/News%20%26%20Events/UHS_2023/Images/Booklet_Program_2ndInt_SummerSchool_UHS_TUDelf_WEB.pdf

Outcomes and Impact
Knowledge Dissemination & Capacity Building

Enhanced the expertise of early-career researchers and professionals in geological hydrogen storage, equipping them with the skills to address challenges in energy storage and contribute to the global energy transition.
Networking & International Collaboration

Strengthened collaborations between academia, industry, and policymakers, fostering partnerships that are now being explored for joint research funding and knowledge exchange.
Media & Public Engagement

The event received international attention within academic and industry circles, with active discussions and outreach on platforms like LinkedIn.
LinkedIn Coverage:
https://www.linkedin.com/posts/hadihajibeygi_summerschool-underground-hydrogen-activity-7082809050173726720-nfMc

Public Awareness & Outreach
The summer school helped increase awareness and understanding of underground hydrogen storage technologies, aligning with global Net Zero and energy security goals.
Event Video Summary:
https://www.youtube.com/watch?v=yEbPrIqgcj0
By contributing to this high-impact international initiative, Professor Edlmann has played a crucial role in shaping the future of underground hydrogen storage. Her expertise has helped train the next generation of researchers and industry professionals, supported international collaboration, and reinforced the role of underground hydrogen storage as a key enabler of the energy transition.
Year(s) Of Engagement Activity 2023
URL https://www.tudelft.nl/citg/over-faculteit/afdelingen/geoscience-engineering/research/subsurface/2nd...
 
Description Hosted DESNZ Workshop and Lab Visit: Engagement with UK Government on Hydrogen Storage Research 
Form Of Engagement Activity Participation in an open day or visit at my research institution
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Policymakers/politicians
Results and Impact Description of the Activity
Professor Katriona Edlmann hosted a dedicated workshop and laboratory visit for the UK Department for Energy Security and Net Zero (DESNZ) to provide hands-on insights into underground hydrogen storage technologies and to support the development of UK hydrogen storage policy and regulatory frameworks. The event took place at the Applied Geoscience Laboratory at the University of Edinburgh, showcasing the world-class experimental facilities used to study geological hydrogen storage, safety considerations, and infrastructure challenges.

Roles and Contributions:

Professor Edlmann and her team led technical discussions, experimental demonstrations, and policy-focused sessions tailored to the needs of DESNZ officials working on hydrogen storage business models and infrastructure planning.
The visit included live demonstrations of experimental setups that recreate subsurface conditions for hydrogen storage, providing first-hand exposure to the technical challenges and feasibility of underground storage solutions.
Engaged key DESNZ representatives in discussions on geological storage security, microbial risks, cushion gas requirements, and potential repurposing of depleted gas fields and salt caverns.
Resources Produced to Support the Activity:

Bespoke briefing documents summarizing key experimental findings and storage risk assessments.
Technical reports on subsurface hydrogen storage integrity and regulatory considerations, helping inform policy discussions.
A guided tour of the Applied Geoscience Laboratory, showcasing the state-of-the-art facilities used to study hydrogen flow dynamics, geomechanical stability, and microbial impacts on storage integrity.
Outcomes and Impacts
Direct Policy Influence on UK Hydrogen Storage Business Models

The workshop provided evidence-based insights that have contributed to the Hydrogen Storage Business Model (HSBM) discussions within DESNZ.
Attendees from DESNZ's Hydrogen Storage and Transport teams gained a deeper understanding of the technical and operational challenges of underground hydrogen storage, influencing ongoing policy and funding decisions.
Strengthening Government-Academia-Industry Collaboration

The event facilitated closer collaboration between DESNZ, academic researchers, and industry stakeholders, reinforcing the importance of scientific research in shaping policy.
The visit has led to continued engagement between the University of Edinburgh and DESNZ, with ongoing discussions about future research needs, regulatory requirements, and funding opportunities.
Increased Government Understanding of Experimental Research Needs

The hands-on demonstrations of hydrogen storage experiments helped DESNZ officials contextualize theoretical policy discussions with real-world research findings.
This engagement has helped DESNZ shape more informed policies, ensuring that regulations account for experimental evidence on hydrogen storage feasibility, integrity risks, and economic viability.
Raising the Profile of Hydrogen Storage Research

The visit showcased the University of Edinburgh's expertise and leadership in hydrogen storage research, enhancing the reputation of the Applied Geoscience Laboratory as a key contributor to the UK's Net Zero strategy.
The workshop reinforced the need for continued research funding to address knowledge gaps in hydrogen storage scalability and deployment.
Future Engagement and Follow-Up
The workshop has led to ongoing discussions with DESNZ regarding further research collaborations and potential funding opportunities to support the next phase of hydrogen storage deployment in the UK.
The visit has also paved the way for future technical workshops, ensuring that scientific research continues to inform government policy decisions on hydrogen storage infrastructure and investment frameworks.
This high-impact engagement activity has significantly contributed to UK hydrogen policy discussions, strengthened research-industry-government collaborations, and positioned the University of Edinburgh as a leading voice in hydrogen storage research and development.
Year(s) Of Engagement Activity 2023
 
Description Organised and hosted the 3rd International summer School on Underground Hydrogen storage 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Event Dates: July 8-12, 2024
Event Location: Edinburgh, Scotland (Hybrid Format)
Event Website: https://blogs.ed.ac.uk/3rd-international-summer-school-underground-hydrogen-storage/

Role and Contributions:
Professor Katriona Edlmann served as the Lead Organizer for the 3rd International Summer School on Underground Hydrogen Storage (UHS), overseeing all aspects of planning and execution. Her responsibilities included:
Curriculum Development: Designed a comprehensive program covering various facets of UHS, tailored for a diverse audience with a focus on students and early-career researchers.
Speaker Coordination: Invited and coordinated with international experts from academia, industry, and government to deliver lectures and participate in panel discussions.
Logistics Management: Handled venue arrangements, scheduling, and the integration of hybrid participation to accommodate both in-person and online attendees.

Program Highlights:
Masterclasses: On July 8, foundational lectures were provided, including:
Hydrogen Overview by Dr. Katriona Edlmann
Hydrogen Storage in Porous Rocks by Dr. Niklas Heinemann
Hydrogen Storage in Salt Caverns by Dr. Evan Passaris
Microbiology vs Hydrogen by Dr. An-Stepec Biwen
Geochemistry vs Hydrogen by Prof. Catherine Peters

Main Conference Sessions (July 9-11): Covered topics such as:
Global hydrogen strategies and policies
Technical aspects of UHS, including geomechanics, geochemistry, and microbiology
Case studies on existing and planned UHS projects
Public engagement and social license considerations


Field Trips (July 12): Organized visits to:
DNV Spadeadam Hydrogen Testing Facility
Geological Field Visit to Siccar Point
Logan Energy Manufacturing Facility
University of Edinburgh Laboratory Facilities


Outcomes and Impacts:
Knowledge Dissemination: Enhanced understanding of UHS among participants, equipping them to contribute effectively to the energy transition.
Networking Opportunities: Facilitated connections among attendees, fostering potential collaborations in UHS research and projects.
Resource Development: Produced educational materials and recordings, serving as valuable resources for the broader UHS community.
Public Engagement: Increased awareness of UHS technologies and their role in achieving net-zero targets.
Year(s) Of Engagement Activity 2024
URL https://blogs.ed.ac.uk/3rd-international-summer-school-underground-hydrogen-storage/
 
Description Sub-task workshop for the International Energy Agency Technology Collaboration Programme (IEA-TCP) underground hydrogen storage task 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Professor Katriona Edlmann contributed to the Hydrogen TCP-Task 42 Mid-Project Face-to-Face Workshop, held in Austria on November 20-21, 2023, hosted by RAG Austria AG. This workshop brought together leading international experts, industry representatives, and policymakers to discuss the challenges and advancements in underground hydrogen storage (UHS). The event focused on identifying technical risks, regulatory gaps, and best practices to support the demonstration and large-scale development of UHS projects globally.

Workshop Announcement and Details:
https://www.tcp-task42-uhs.org

Professor Edlmann played a key role in shaping discussions on risk identification and management, particularly in relation to geochemical and microbial processes, geological integrity, and long-term storage feasibility. The workshop also included a technical excursion to RAG's Energy Valley Project and the newly opened SunStorage Pilot Site, where participants were able to engage directly with 100% hydrogen injection in a depleted gas field.

Roles and Contributions:
Speaker & Facilitator: Led discussions on geochemical risks and microbial interactions in UHS, sharing insights from recent experimental and modeling studies.
Risk Management Strategy Development: Contributed to the establishment of an agreed framework for addressing technical and non-technical risks, which will inform the final TCP-Task 42 Report (due end of 2024).
Technical Demonstration & Site Visit: Engaged in hands-on technical discussions at RAG's SunStorage Pilot Site, assessing operational considerations for pure hydrogen injection and withdrawal.

Outcomes and Impacts
Advancing Global Underground Hydrogen Storage Research

Strengthened international collaboration between industry, regulators, and research institutions, ensuring a cohesive approach to UHS development.
Provided key recommendations on risk mitigation strategies, helping align technical and regulatory pathways for hydrogen storage projects.
Influencing Industry & Policy-Making

The workshop's outcomes will feed directly into IEA-TCP's final report on underground hydrogen storage, providing policy-relevant insights to governments and regulatory bodies.
Participants, including European hydrogen developers, policymakers, and technical experts, have gained critical insights into UHS risk assessment, helping shape future regulatory frameworks.
Technical Knowledge Transfer & Training

Enabled knowledge exchange between operators, policymakers, and researchers, ensuring technical best practices are widely adopted across hydrogen storage projects.
Hands-on engagement with hydrogen storage field trials allowed attendees to assess real-world hydrogen injection challenges, bridging the gap between research and implementation.
Strengthening Research Networks & Future Collaborations

Established new partnerships for collaborative research and funding proposals focused on hydrogen storage security and operational efficiency.
Supported the integration of multi-disciplinary expertise, ensuring that subsurface hydrogen storage research is informed by geoscience, engineering, and regulatory considerations.
Year(s) Of Engagement Activity 2023
URL https://www.ieahydrogen.org/task/task-42-underground-hydrogen-storage/
 
Description Women in Hydrogen Event London 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Professor Katriona Edlmann attended the Women in Hydrogen Networking Event, hosted by Hydrogen Economist in London. This industry-leading event brought together women working across the hydrogen sector, including researchers, industry professionals, policymakers, and investors, to discuss key developments in the hydrogen economy, address barriers to gender diversity in the sector, and strengthen professional networks.
The event provided a platform for knowledge-sharing, career development, and fostering collaborations in hydrogen production, storage, transportation, and policy. Discussions focused on accelerating hydrogen deployment, overcoming technical and commercial challenges, and supporting greater inclusivity in the energy transition.
Event Link:
https://pemedianetwork.com/women-in-hydrogen-50-2024/home/
Year(s) Of Engagement Activity 2023
URL https://web.cvent.com/event/49607a50-65a5-4019-9ae1-a9d1e82c4365/summary