Optimal configuration scheme for multi-hybrid energy storage system containing ground source heat pumps and hydrogen-doped gas turbine

Beiyuan Zhang, Jianru Wang, Zhicheng Li, Tongtong Gao, Weijun Zhang, Chao Xu and Xing Ju

Energy, 2025, vol. 321, issue C

Abstract: The new power system, which is characterized by cleanliness and efficiency, is composed of distributed energy systems (DES) and renewable energy generation. Renewable energy generation is stochastic and volatile, posing a challenge for DES to achieve a balance between supply and demand and stable operation. Dedicated to enhancing system resilience and its ability to respond to loads, this study presents a novel model for a large-scale multi-hybrid renewable energy system supported by a ground source heat pump (GSHP) and a gas turbine power plant. It also provides an optimal configuration of the system to improve the economy and the environmental benefit. A collaborative hydrogen, electrochemical energy storage and heat storage scheme is proposed for better performance. The results indicate that this innovative combination of multi-hybrid energy storage reduces economic costs and carbon emissions, achieving a 28 % carbon emission reduction compared to the system with single electrochemical energy storage. Hydrogen, as a clean energy source, its production and storage has been a research direction in the area of the new power system. In this paper, hydrogen-doped combustion is used to further reduce carbon emissions. Results show that the hydrogen-doped combustion scheme has a certain reduction in both annual total cost and carbon emission cost compared to the original scheme. To summarize, this study provides an innovative idea for the optimal allocation of the new power system in the area concerned. The results demonstrate that multi-hybrid energy storage, with its dexterity and stability, has great potential for improving the efficiency and stability of new power systems.

Keywords: GSHP; Renewable energy; Hydrogen; Multi energy storage; Capacity configuration (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:321:y:2025:i:c:s0360544225010679

DOI: 10.1016/j.energy.2025.135425

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