Optimal coordination of hydrogen-based integrated energy systems with combination of hydrogen and water storage

Xiangxiang Dong, Jiang Wu, Zhanbo Xu, Kun Liu and Xiaohong Guan

Applied Energy, 2022, vol. 308, issue C, No S030626192101535X

Abstract: With the rapid development of hydrogen production and storage technologies, it is possible to develop a hydrogen-based integrated energy system (HIES) in demand side, which brings fundamental changes in the structure of energy and power systems. It is very important to optimally coordinate the HIES with the combination of hydrogen and water storage, which can handle the energy imbalance between the multi-energy supply and demand, thus improve the energy efficiency and make full use of renewable supply. To address this coordination problem with uncertainties in renewable supply and demand, a stochastic optimization problem is formulated and solved by a scenario-based algorithm to determine the operation strategy of the system. The performance of the developed method is analyzed based on a building energy system. Numerical results show that through the coordination of the hydrogen and water storage, 80% of energy cost saving can be achieved, since the system capability in response to changes in the price of electricity could be significantly enhanced, and the utilization efficiency of renewable supply could achieve 100%. Moreover, energy cost saving and carbon emission reduction could be simultaneously obtained, except for the cases with high hydrogen prices in the typical summer day.

Keywords: Hydrogen-based multi-energy system; Energy storage; Demand side energy system; Coordination of integrated energy system; Stochastic optimization (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (20)

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DOI: 10.1016/j.apenergy.2021.118274

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