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Energy storage is going to be absolutely central to the timely achievement of Net Zero. That storage will have to be applied over a vast spectrum of times ranging from fractions of a second to many months – and possibly more than a year.

Storing pure hydrogen in caverns has a vital role to play in this, because the transformations from primary energy to hydrogen and back to usable energy are so relatively straightforward.

This event, which took place at the Geological Society in London on Monday 14 March 2022, set out to explore some of the key challenges involved in deploying the necessary amounts of hydrogen storage in caverns.

Event Summary

The event started with a keynote review of just how much hydrogen storage we are likely to need in the UK – many tens of TWh worth and possibly more. The workshop will examine:

  • How hydrogen storage blends with large-scale compressed air energy storage and other thermo-mechanical energy storage solutions much better suited to shorter timescales than hydrogen.
  • The potential in the UK for making salt caverns to store hydrogen
  • The technical challenges of storing hydrogen in caverns
  • Examination of case studies of hydrogen storage in caverns

The workshop concluded with a panel session comprising experts from academia and industry.

You may also be interested in our Medium Duration Energy Storage event?

We also held a Medium Duration Energy Storage event at the Institution for Mechanical Engineers on Wednesday 16th March. If you are interested in the discussions that took place at this event, and to view the presentations and video, visit the page.

Medium Duration Energy Storage web-page

Event Sponsors

This event was run by the University of Nottingham in conjunction with our sponsors, the Geological Society, the Supergen for Energy Storage, The Hydrogen and Fuel Cell Supergen, and the Energy Research Accelerator.

University of Nottingham Logo
ERA - Energy Research Accelerator - logo
H2FCSupergen logo

Event Presentations

Welcome and Introductions: Tom Bent, Chair, Independent Energy Market Consultant

Part 1: Video presentations of Deep KBB, Birmingham University, Gravitricity and Arup

Re-tasking methane cavities for H2 – Rene Schneider, Deep KBB GmbH 

The need for H2 storage – Dr. Grant Wilson from Birmingham University 

Hydrogen Storage in Underground Lined Rock Shafts – Dr. Anastasios Stavrou from ARUP

Part 2: Video presentations of Atkins and Teeside University

Hydrogen Storage in Underground Lined Rock Shafts – Sally Molyneux from Gravitricity

Utilising public data for identifying offshore salt strata and developing salt caverns for storing hydrogen – Dr. Georgios Yfantis

Hydrogen geological storage in saline aquifer and depleted gas reservoirs – Dr Sina Gomari, Teeside University

Part 3: Video presentations of UCL, SSE & Equinor, BGS and University of British Columbia

The value of hydrogen storage in the UK’s net-zero emissions energy system – Dr. James Price from UCL 

Hydrogen in the Humber: Creating one of the world’s largest hydrogen storage facilities at Aldbrough – Michael Gillatt, Director of Gas Storage, SSE &  Dr. Silvan Hoth, Equinor

SSE Thermal and Equinor: Hydrogen storage at Aldbrough (

Geology as an enabler and barrier to underground hydrogen storage- Research questions – Dr. Ed Hough from BGS

Electrolysis at elevated pressures – suited to charging caverns – Professor Walter Merida from University of British Colombia

Panel session: Video featuring Professor Sir Chris Llewellyn Smith (Oxford University), Sarah Kimpton (DNV), Georgina Morris (BEIS)

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