Optimizing Hydrogen Storage Technology for Integrated Energy Systems

Strategic Insights -

Hydrogen storage technology has become a critical application in response to the urgent global demand for energy conservation and emissions reduction. However, optimizing capacity allocation and ensuring economic viability remain core challenges. Researchers from Hebei University of Technology have proposed a capacity planning method for integrated energy systems incorporating hydrogen-based hybrid energy storage and innovatively introduced an oxygen sales mechanism to enhance system economic viability.

Key Takeaways:

  • The proposed method utilizes a Particle Swarm Optimization (PSO) algorithm to optimize the hybrid capacity of batteries and hydrogen storage, aiming to minimize total system costs and maximize hydrogen energy system utilization.
  • The oxygen sales mechanism generates an additional income of $1254.42 and effectively incentivizes the hydrogen storage system to participate in scheduling across more periods.
  • Sensitivity analysis reveals that electricity prices are the most critical factor affecting total costs, with a 10% fluctuation resulting in cost changes ranging from -17.1% to +16.9%.
  • The total hydrogen production of the system is most sensitive to the hydrogen production efficiency of the electrolyzer itself, with a 10% increase in efficiency increasing hydrogen production by 4.1%.
  • The study confirms the technical feasibility and economic value of the oxygen sales mechanism in IES planning and offers new insights into exploring diversified value realization pathways for hydrogen energy.
  • The research proposes a capacity planning method for energy storage equipment of an integrated energy system including hydrogen storage, based on an oxygen sales mechanism.
  • Authors Bin Yang, Zhuo Liu, Ruiqiang Ma, and Xiaohui Yu from Hebei University of Technology proposed the innovative solution.

Statistics:

  • $1254.42: Additional income generated by the oxygen sales mechanism
  • 13 h: Initial participation period of the hydrogen storage system in scheduling
  • 17 h: Extended participation period after implementing the oxygen sales mechanism
  • -17.1% / +16.9%: Range of cost changes resulting from a 10% fluctuation in electricity prices
  • 4.1%: Increase in hydrogen production resulting from a 10% increase in hydrogen production efficiency
  • 10%: Increase in electricity production efficiency required to achieve significant cost savings

Sources:

  • A Capacity Planning Method for Energy Storage Equipment of an Integrated Energy System Including Hydrogen Storage, Based On an Oxygen Sales Mechanism. International Journal of Hydrogen Energy, 2025;177.
  • International Journal of Hydrogen Energy: Pergamon-elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England.
  • Hebei University of Technology: School of Energy and Environmental Engineering, Tianjin Key Lab Clean Energy & Pollut Control, Tianjin 300401, People's Republic of China.