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Advanced Pumped Compressed Air Energy Storage: Systems and Key Technologies

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D: Energy Storage and Application".

Deadline for manuscript submissions: closed (25 February 2026) | Viewed by 347

Special Issue Editors


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Guest Editor
School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, China
Interests: new methods, principles, technologies, and equipment for large-scale electrical energy storage (compressed air energy storage, transcritical CO2 energy storage, and pumped compressed gas energy storage); optimized design of ultra-high-speed water tunnels; the use of jets from the head of high-speed moving objects across the gas-liquid interface

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Guest Editor
School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, China
Interests: engineering thermophysics; thermophysical property of fluid; thermodynamic cycle

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Guest Editor
College of Electrical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
Interests: smart energy; energy storage and new energy generation; multi-energy complementary technology
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
College of Electrical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
Interests: renewable energy generation technology; new energy storage technology

Special Issue Information

Dear Colleagues,

To accelerate the construction of a low-carbon power system with renewable energy as the mainstay, it is crucial to address the technical challenges arising from the large-scale integration of renewables—such as the spatial and temporal variability of wind and solar resources, and the complexity of their coordinated planning with the power grid. In this context, the rapid development of energy storage technologies has become an urgent need.

Among various energy storage solutions, Pumped Hydro Compressed Air Energy Storage (PH-CAES) stands out by integrating the complementary advantages of both pumped hydro storage and compressed air energy storage. It features high energy density, excellent efficiency, short construction periods, and strong rotational inertia. To promote the academic and engineering progress of this promising technology, we are pleased to launch this Special Issue, titled "Advanced Pumped Compressed Air Energy Storage: Systems and Key Technologies", aiming to introduce and disseminate the latest advances the in theory, system design, equipment manufacturing, modeling, application, control, and monitoring of PH-CAES technologies.

This Special Issue welcomes contributions on, but not limited to, the following topics:

  • Optimal design methodologies for PH-CAES systems;
  • Coordinated control technologies for PH-CAES systems;
  • The design and manufacturing of composite material pressure vessels;
  • Thermal energy storage technologies and high-efficiency thermal storage equipment;
  • Retrofitting technologies for high-pressure caverns or abandoned mines;
  • Heat and mass transfer mechanisms and energy flow coupling in water–air combined chambers;
  • Design and manufacturing of high-efficiency pump–turbine units under wide load variation conditions;
  • Erosion and wear resistance technologies for hydraulic machinery;
  • Impact analysis and mitigation strategies of deep peak shaving on hydropower units;
  • Key technologies for hydropower plant trash removal and cleaning;
  • Life-cycle safety assurance and economic evaluation of underground cavern linings;
  • Design technologies for expansion turbines operating under ultra-wide hydraulic head variations;
  • Optimization strategies and control system development for pump–turbine units under ultra-wide operating conditions;
  • Safety and stability analysis and high-efficiency operation strategies for PH-CAES systems;

Prof. Dr. Huanran Wang
Prof. Dr. Maogang He
Prof. Dr. Yan Ren
Dr. Lile Wu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • pumped hydro compressed air energy storage
  • heat and mass transfer
  • system design
  • control strategies
  • operational strategies
  • monitoring
  • economic performance

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Published Papers (1 paper)

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Research

23 pages, 4689 KB  
Article
A Key Technical System for the Construction of Energy Storage Caverns in Bedded Salt Rock—A Case Study of the Dawenkou Basin
by Ming Wang, Wei Shi, Xinglong Huang, Zhiqin Lan, Yulin Lü, Xinghao Jiang, Xingke Yang, Xinqian Xu and Dongdong Wang
Energies 2026, 19(11), 2518; https://doi.org/10.3390/en19112518 (registering DOI) - 23 May 2026
Abstract
Salt cavern Compressed Air Energy Storage (CAES) is one of the critical technologies for energy storage and an important infrastructure supporting the construction of new power systems and facilitating the achievement of the dual carbon goals. The salt rock resources in China are [...] Read more.
Salt cavern Compressed Air Energy Storage (CAES) is one of the critical technologies for energy storage and an important infrastructure supporting the construction of new power systems and facilitating the achievement of the dual carbon goals. The salt rock resources in China are primarily composed of continental strata salt rocks, characterized by high heterogeneity, well-developed thin-layer interbedding, dissolution resistance among different lithologies, and significant creep variations. These features, to some extent, limit the improvement of wellbore construction accuracy, the reliability of abandoned well sealing, the safety of natural gas storage operations, and enhancements in gas injection–brine displacement efficiency. This study takes the continental bedded salt rock in the Dawenkou Basin as the research object and adopts a method combining theoretical analysis and field engineering verification to improve the systematic construction technology system, covering the whole process of drilling engineering, abandoned well plugging, the design of an injection and brine extraction device, and gas injection and brine drainage. The research results optimize four key technologies, including precise wellbore trajectory control, dual-section milling, and multi-stage redundant plugging of abandoned wells and long-term anti-corrosion completion with laser cladding, and dual-mode adaptive gas injection and brine drainage, and improve the technical system from wellbore construction to salt cavity formation. This study can provide valuable theoretical references and engineering demonstration guidance for underground space development projects in similar salt basins in China. Full article
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