Innovative Hydrogen Storage System to Revolutionize UK Energy Networks
Key Ideas
  • Gravitricity's H2FlexiStore system aims to store pressurized hydrogen in geological shafts, offering flexibility and scalability in hydrogen storage.
  • The UK's underground salt cavern limitations for hydrogen storage may be overcome by the versatile geological adaptability of the new system.
  • The Ofgem-funded project, involving key industry players, plans to design, model, and potentially demonstrate the effectiveness of the storage system within the next year.
  • The initiative aligns with the growing focus on hydrogen as a clean energy solution, supporting infrastructure projects like Project Union and Scotland's green hydrogen export ambitions.
Edinburgh-based energy storage specialist Gravitricity has introduced the innovative H2FlexiStore system, designed to revolutionize hydrogen storage in the UK. The system utilizes purpose-built geological shafts to store pressurized hydrogen, providing a versatile and scalable solution for energy storage needs. Unlike the limited underground salt caverns in the UK, Gravitricity's system can adapt to a wide range of geological conditions, ensuring hydrogen can be stored close to demand centers. The project, funded by Ofgem and involving industry stakeholders like Southern Gas Networks and Edinburgh University, aims to enhance the resilience and efficiency of the hydrogen gas network. Successful implementation could pave the way for large-scale hydrogen storage and distribution, supporting projects like Project Union's ambition to repurpose the gas grid for hydrogen use. Additionally, Scotland's hydrogen export targets align well with the capabilities of H2FlexiStore, indicating its potential role in the country's green energy transition. Industry experts have praised the initiative, highlighting its significance in preparing the UK's energy networks for a hydrogen-powered future. Gravitricity's Co-Founder emphasized the importance of developing mature hydrogen storage technologies to ensure cost-effective resilience in current and future energy systems, emphasizing the system's role in supporting decarbonization efforts and enhancing operational flexibility.
ADVANCEH2

Our vision is to be the world's leading online platform for advancing the use of hydrogen as a critical piece needed to deliver net-zero initiatives and the promise of a clean H2 energy future.

© 2025 AdvanceH2, LLC. All rights reserved.