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Recent Advances in New Energy Electrolytic Hydrogen Production
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Recent Advances in New Energy Electrolytic Hydrogen Production

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A5: Hydrogen Energy".

Deadline for manuscript submissions: closed (25 March 2026) | Viewed by 8673

Special Issue Editors

Dr. Xin Meng

E-Mail Website
Guest Editor
College of Electrical Engineering, Sichuan University, Chengdu 610000, China
Interests: grid supporting inverter for microgrid; coordinative control for parallel inverters; high-power rectifier for electrolytic hydrogen production
Dr. Lingguo Kong

E-Mail Website
Guest Editor
China Key Laboratory of Modern Power System Simulation and Control and Renewable Energy Technology, Ministry of Education (Northeast Electric Power University), No.169, Changchun Road, Jilin 132012, China
Interests: operational control of source/grid/load coupled hydrogen energy storage system; electro-hydrogen coupled integrated energy storage technology
Dr. Xingxing Chen

E-Mail Website
Guest Editor
Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, 999077 Hong Kong, China
Interests: modeling and control of power electronic converters; HVDC; energy router; photovoltaic and battery energy storage systems; electrolytic hydrogen production
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Special Issue titled "Recent Advances in New Energy Electrolytic Hydrogen Production" focuses on cutting-edge developments in the field of hydrogen production through electrolysis, as driven by renewable energy sources. As the global energy landscape shifts towards sustainable and low-carbon technologies, electrolytic hydrogen production stands out as a crucial component for achieving carbon neutrality. This Special Issue will bring together the latest research on innovative electrolytic processes, advanced materials, and system integration techniques that enhance efficiency, reduce costs, and improve the scalability of hydrogen production. Relevant topics include novel electrode and catalyst designs, the integration of renewable energy sources like wind and solar with electrolysis systems; advancements in electrolysis technologies such as PEM, AEM, and solid oxide electrolyzers; and challenges related to grid integration, energy management, and hydrogen storage. By presenting these advances, this Special Issue will contribute to the acceleration of green hydrogen adoption, supporting the transition to a sustainable energy future. Researchers, industry professionals, and policymakers are invited to explore these developments and their implications for the future of clean energy.

Dr. Xin Meng
Dr. Lingguo Kong
Dr. Xingxing Chen
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

  • electrolytic hydrogen production
  • renewable energy
  • converter
  • electrolyzer
  • coordinative control

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Published Papers (4 papers)

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Research

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25 pages, 4330 KB  
Article
Optimized Operation Strategy for Off-Grid PV/Wind/Hydrogen Systems with Multi-Electrolyzers
by Jing Sun, Yue Guo, Xuyang Wang, Jingru Li, Ruizhang Wang and Haicheng Liu
Energies 2026, 19(8), 1936; https://doi.org/10.3390/en19081936 - 17 Apr 2026
Abstract
To improve the economic efficiency and reliability of off-grid renewable energy hydrogen production systems, this paper proposes an integrated optimal variable temperature operation strategy for multi-electrolyzer systems. This paper develops a unified optimization model that deeply integrates the electro-thermal characteristics and dynamic operational [...] Read more.
To improve the economic efficiency and reliability of off-grid renewable energy hydrogen production systems, this paper proposes an integrated optimal variable temperature operation strategy for multi-electrolyzer systems. This paper develops a unified optimization model that deeply integrates the electro-thermal characteristics and dynamic operational states of multiple alkaline water electrolyzers. By actively regulating the operating temperature and optimizing power allocation, the strategy significantly improves economic efficiency under fluctuating power inputs. Furthermore, a collaborative dispatch principle is introduced to ensure balanced aging across the electrolyzer cluster. Simulation results based on real-world wind and solar data demonstrate that compared to traditional rule-based methods, the proposed strategy increases the monthly net profit by up to 14.6% and significantly reduces the frequency of cold and hot starts by 51.21% and 89.41%, respectively. This research provides an efficient and reliable technical framework for the collaborative management of large-scale green hydrogen infrastructure. Full article
(This article belongs to the Special Issue Recent Advances in New Energy Electrolytic Hydrogen Production)
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19 pages, 5486 KB  
Article
Modeling of a Combined PEM Electrolyzer and Quadratic Step-Down Converter for the Generation of Green Hydrogen
by Jesús Leyva-Ramos, Ma. Guadalupe Ortiz-Lopez and Luis Humberto Diaz-Saldierna
Energies 2026, 19(5), 1308; https://doi.org/10.3390/en19051308 - 5 Mar 2026
Viewed by 441
Abstract
Currently, hydrogen is considered a primary option for replacing fossil fuels across various processes, which can reduce greenhouse gas emissions and mitigate global warming. To achieve these goals, hydrogen should be produced using non-polluting processes, such as water electrolysis powered by renewable energy [...] Read more.
Currently, hydrogen is considered a primary option for replacing fossil fuels across various processes, which can reduce greenhouse gas emissions and mitigate global warming. To achieve these goals, hydrogen should be produced using non-polluting processes, such as water electrolysis powered by renewable energy sources. This method requires feeding the converter with an unregulated voltage source. A quadratic step-down converter can be connected between a DC source and a Proton Exchange Membrane (PEM) electrolyzer to produce hydrogen. To mitigate variations in the generated output voltage and intermittent power supply to a PEM electrolyzer, a DC-DC converter is used as an interface. A converter model can be combined with a static or dynamic model of the PEM electrolyzer to yield switched models and, after averaging, linear state-space models. These models can be used to design robust controllers for green hydrogen production, thus significantly reducing greenhouse gas emissions. This work presents experimental and simulation results. Full article
(This article belongs to the Special Issue Recent Advances in New Energy Electrolytic Hydrogen Production)
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11 pages, 2601 KB  
Article
Advanced Rectifier Technologies for Electrolysis-Based Hydrogen Production: A Comparative Study and Real-World Applications
by Yan Gao, Xiongzheng Wang and Xin Meng
Energies 2025, 18(1), 48; https://doi.org/10.3390/en18010048 - 27 Dec 2024
Cited by 3 | Viewed by 4650
Abstract
In response to the growing significance of hydrogen as a clean energy carrier, this study investigates the advanced rectifier technologies employed in electrolytic hydrogen production. First, the topologies of three rectifiers typically employed in industry—24-pulse thyristor rectifiers, insulated gate bipolar transistor (IGBT) rectifiers, [...] Read more.
In response to the growing significance of hydrogen as a clean energy carrier, this study investigates the advanced rectifier technologies employed in electrolytic hydrogen production. First, the topologies of three rectifiers typically employed in industry—24-pulse thyristor rectifiers, insulated gate bipolar transistor (IGBT) rectifiers, and 24-pulse diode rectifiers with multi-phase choppers—are described in detail. Subsequently, at a constant 5 MW power level, the three rectifiers are compared in terms of rectifier efficiency, grid-side power quality, power factor, and overall investment cost. The results indicate that in comparison to the other two rectifiers, the thyristor rectifier provides superior efficiency and cost advantages, thereby maintaining a dominant market share. Additionally, case studies of rectifier power supplies from three real-world industrial projects are presented, along with actual grid-side power quality data. Finally, the challenges, potential applications, and future prospects of rectifiers in renewable energy-based hydrogen production are discussed and summarized. Full article
(This article belongs to the Special Issue Recent Advances in New Energy Electrolytic Hydrogen Production)
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Review

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37 pages, 2416 KB  
Review
Underground Hydrogen Storage: Insights for Future Development
by Radosław Tarkowski and Barbara Uliasz-Misiak
Energies 2025, 18(21), 5724; https://doi.org/10.3390/en18215724 - 30 Oct 2025
Cited by 1 | Viewed by 2580
Abstract
Underground hydrogen storage (UHS) is a relatively new technology that demonstrates notable potential for the efficient storage of large quantities of green hydrogen. Its large-scale implementation requires a comprehensive understanding of numerous factors, including safe and effective storage methods, as well as overcoming [...] Read more.
Underground hydrogen storage (UHS) is a relatively new technology that demonstrates notable potential for the efficient storage of large quantities of green hydrogen. Its large-scale implementation requires a comprehensive understanding of numerous factors, including safe and effective storage methods, as well as overcoming various thresholds and challenges. This article presents strategies for accelerating the implementation of this technology, identifying the thresholds and challenges affecting the development and future scale-up of UHS. It characterises challenges and constraints related to geology (including the type and geological characterisation of structures, hydrogen storage capacity, and hydrogen interactions with underground environments), the technological aspects of hydrogen storage (such as infrastructure, management, and monitoring), and economic and legal considerations. The need for the rapid implementation of demonstration projects has been emphasised. The identified thresholds and challenges, along with the resulting recommendations, are crucial for paving the way for the large-scale implementation of UHS. Addressing these issues will significantly influence the implementation of this technology post-2030. Full article
(This article belongs to the Special Issue Recent Advances in New Energy Electrolytic Hydrogen Production)
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