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Energies publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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New Advances in Renewable Energy and Sustainable Energy Storage Systems

edited by

Aleksandra Komorowska

submission deadline 21 Nov 2025 | 1 articles | Viewed by 1382 | Submission Open

Keywords: renewable energy; sustainable energy; energy storage; power generation integrating renewable energy sources (such as solar and wind)

(This special issue belongs to the Section A: Sustainable Energy)

Materials and Process Design for Enhanced Performance and Novel Applications of Solar Cells

edited by

Pradeep Padhamnath

submission deadline 21 Nov 2025 | Viewed by 72 | Submission Open

Keywords: photovoltaic materials synthesis; photovoltaic materials properties and characterization; photovoltaic materials processing techniques; advanced solar cells and module design; materials for enhanced solar cell/module performance; materials or design for increased longevity of PV modules; modelling and optimization of PV systems; novel application of photovoltaics

(This special issue belongs to the Section D2: Electrochem: Batteries, Fuel Cells, Capacitors)

In-Depth Investigations in Bioenergy

edited by

Katarzyna Bułkowska

and

Magdalena Zielińska

submission deadline 24 Nov 2025 | 4 articles | Viewed by 20900 | Submission Open

Keywords: bioenergy sustainability; thermochemical conversion; biofuel production; environmental impact assessment; renewable energy integration; challenges in bioenergy; market dynamics in bioenergy; bioenergy infrastructure development; decentralized energy systems; lignocellulosic biomass utilization; emerging trends in bioenergy; cellulosic ethanol pathways; algal biofuel production; microbial fuel cell applications

(This special issue belongs to the Section A: Sustainable Energy)

Advances in Permanent Magnet Motor and Motor Control

edited by Kai Liu and Haiwei Cai

submission deadline 24 Nov 2025 | 7 articles | Viewed by 11873 | Submission Open

Keywords: permanent magnet; motor; design; control

(This special issue belongs to the Section F: Electrical Engineering)

Integration of Renewable Energy Systems in Power Grid

edited by

Susanna Mocci

submission deadline 24 Nov 2025 | 4 articles | Viewed by 11165 | Submission Open

Keywords: renewable energy integration; smart grids; grid stability; energy storage; demand-side flexibility

(This special issue belongs to the Section A: Sustainable Energy)

International Finance and Energy Markets: Energy Supplying, Prices, Investments and Trends

edited by

Shigeyuki Hamori

Xiaojing Cai

and Xie He

submission deadline 24 Nov 2025 | 6 articles | Viewed by 9236 | Submission Open

Keywords: international finance; energy prices; spillover effects; clean energy; green finance

(This special issue belongs to the Section C: Energy Economics and Policy)

Advanced Studies on Clean Hydrogen Energy Systems of the Future

edited by Volodymyr Shentsov

submission deadline 24 Nov 2025 | 6 articles | Viewed by 7481 | Submission Open

Keywords: education; hydrogen safety; engineering; hydrogen technology; physics; computational fluid dynamics; ANSYS

(This special issue belongs to the Section A5: Hydrogen Energy)

Modeling, Optimization, and Control in Smart Grids: 2nd Edition

edited by

Paulo Coelho

and

Mario Gomes

submission deadline 24 Nov 2025 | 3 articles | Viewed by 7398 | Submission Open

Keywords: smart grid; modeling; optimization; control systems; renewable energy; power systems; microgrids; artificial intelligence; machine learning; intelligent control; energy-efficient; security; demand response; smart systems

(This special issue belongs to the Section A1: Smart Grids and Microgrids)

Impacts of Distributed Energy Resources on Power Systems

edited by

Chong Wang

submission deadline 24 Nov 2025 | 6 articles | Viewed by 6937 | Submission Open

Keywords: distributed energy resources; uncertainty analysis; stochastic optimization; renewables; resilience; demand-side resources

(This special issue belongs to the Section F2: Distributed Energy System)

Advances in Wireless Power Transfer Technologies and Applications

edited by

Ping Lu

submission deadline 24 Nov 2025 | 5 articles | Viewed by 6886 | Submission Open

Keywords: wireless power transmission; rectennas; impedance matching; hybrid energy harvesters; rectifying metasurfaces

(This special issue belongs to the Section F: Electrical Engineering)

Opportunities for Energy Efficiency in Smart Cities

edited by

Wojciech Lewicki

Wojciech Drożdż

, Radoslaw Miskiewicz and Milena Bera

submission deadline 24 Nov 2025 | 2 articles | Viewed by 6826 | Submission Open

Keywords: smart city; energy efficiency; energy costs; smart grid; smart environment; smart mobility; electromobility; vehicle to home; vehicle to grid; urban living labs; innovative solutions

(This special issue belongs to the Section G1: Smart Cities and Urban Management)

Sustainable Approaches to Energy and Environment Economics

edited by

Florian Marcel Nuta

submission deadline 24 Nov 2025 | 4 articles | Viewed by 6461 | Submission Open

Keywords: energy economic; energy; economic crisis; energy transition; innovation; climate change; carbon emissions

(This special issue belongs to the Section C: Energy Economics and Policy)

Heat Transfer and Fluid Flows for Industry Applications

edited by

Jingzhi Zhang

and Linghong Tang

submission deadline 24 Nov 2025 | 6 articles | Viewed by 6421 | Submission Open

Keywords: electrical equipment cooling; thermal management; heat sinks; heat exchangers; heat pipes; heat transfer enhancement; mini/micro channels; multiphase flows boiling; condensation; microfluidics; droplets; numerical simulations; MD simulation; flow patterns; pressure drops; supercritical fluid; phase change material; heat storage

(This special issue belongs to the Section J: Thermal Management)

Advanced Energy Systems in Energy Resilient and Flexible Zero/Positive Energy Buildings, Communities and Districts

edited by

Hassam Ur Rehman

submission deadline 24 Nov 2025 | 9 articles | Viewed by 6339 | Submission Open

Keywords: nearly/net/zero and positive energy buildings/communities/districts; advanced energy systems; energy resiliency; energy flexibility; experience from demo sites; economic; social and policy aspects; user’ s acceptance and engagement

(This special issue belongs to the Section G: Energy and Buildings)

Research on Coalbed Methane and Coal-Measure Gas: Exploration, Exploitation, and Utilization

edited by

Rui Li

and Shuaifeng Lyu

submission deadline 24 Nov 2025 | 5 articles | Viewed by 6089 | Submission Open

Keywords: coalbed methane; coal-measure gas; stimulation measures; enhanced gas recovery; methane extraction

(This special issue belongs to the Section H: Geo-Energy)

Innovations in Fuel Cell and Electrolyzer Technology: Enhancing Efficiency with Power Electronic Converters and Expanding Applications

edited by Issam Salhi,

Muhammad Umair Mutarraf

and

Qin Wang

submission deadline 24 Nov 2025 | 2 articles | Viewed by 5893 | Submission Open

Keywords: fuel cells; electrolyzer; hydrogen applications; hydrogen storage; power converter topologies; digital twin; hardware-in-the-loop; power-to-X

(This special issue belongs to the Section D2: Electrochem: Batteries, Fuel Cells, Capacitors)

Recent Progress, Challenges and Outlooks of Insulation System in HVDC: 2nd Edition

edited by

Chuyan Zhang

Xiaobo Meng

, Hao Yang and Zhong Wang

submission deadline 24 Nov 2025 | 9 articles | Viewed by 5875 | Submission Open

Keywords: insulation system; insulating material; HVDC cable; HVDC insulator; discharge; detection and diagnosis; insulation design; aging; breakdown; dielectric; AI in high voltage

(This special issue belongs to the Section F6: High Voltage)

Advances in Unconventional Reservoirs and Enhanced Oil Recovery

edited by

Saipeng Huang

, Jun Liu and

Ang Li

submission deadline 24 Nov 2025 | 7 articles | Viewed by 5868 | Submission Open

Keywords: CCUS; unconventional reservoirs; hydraulic fracturing technology for deep reservoirs; enhanced oil recovery techniques

(This special issue belongs to the Section H: Geo-Energy)

Innovations and Applications in Piezoelectric Energy Harvesting

edited by

Bin Zhang

, Rujun Song and Hui Shen

submission deadline 24 Nov 2025 | 3 articles | Viewed by 4318 | Submission Open

Keywords: piezoelectric energy harvesting; material innovation; structural design and optimization; self-powering; high-efficiency energy conversion circuits

(This special issue belongs to the Section D: Energy Storage and Application)

Advances in Control of Electrical Drives and Power Electronics

edited by Wentao Zhang

submission deadline 24 Nov 2025 | 3 articles | Viewed by 3303 | Submission Open

Keywords: permanent motors; new topologies; advanced control algorithms

(This special issue belongs to the Section F: Electrical Engineering)

Utilization of Power Quality Analysis in Power Systems and Power Distribution Systems

edited by

Wencong Su

and

Guilherme Vieira Hollweg

submission deadline 24 Nov 2025 | 2 articles | Viewed by 3150 | Submission Open

Keywords: power quality analysis; renewable energy sources; energy system reliability; power system operation and control; power quality disturbance detection; power quality mitigation techniques

(This special issue belongs to the Section F2: Distributed Energy System)

Recent Development and Future Perspective of Wind Power Generation—2nd Edition

edited by

Christopher Jung

submission deadline 24 Nov 2025 | 2 articles | Viewed by 2720 | Submission Open

Keywords: wind energy; wind turbines; wind speed; wind power assessment; climate change

(This special issue belongs to the Section A3: Wind, Wave and Tidal Energy)

Advances in Renewable Energy Power Forecasting and Integration: 2nd Edition

edited by

Hamed Aly

submission deadline 24 Nov 2025 | 3 articles | Viewed by 2621 | Submission Open

Keywords: renewable integration; forecasting; optimization; management; advanced control; application of artificial intelligence and deep learning in power systems; distributed generation

(This special issue belongs to the Section A: Sustainable Energy)

Advances in Fuel Cells: Materials, Technologies, and Applications

edited by Zhipeng Li and Qichen Wang

submission deadline 24 Nov 2025 | 3 articles | Viewed by 2435 | Submission Open

Keywords: CO2 reduction; fuel cell; Li/Na/Zn batteries; energy electrocatalysis; energy materials

(This special issue belongs to the Section D2: Electrochem: Batteries, Fuel Cells, Capacitors)

Advancements in Power Electronics for Power System Applications

edited by Weibo Li

submission deadline 24 Nov 2025 | 3 articles | Viewed by 2109 | Submission Open

Keywords: power electronics; power systems; energy management; fault diagnosis; reliability; smart grid

(This special issue belongs to the Section F1: Electrical Power System)

Analysis and Control of Power System Stability

edited by Jinpeng Guo, Mingshen Li and Xiaoting Wang

submission deadline 24 Nov 2025 | 3 articles | Viewed by 2096 | Submission Open

Keywords: renewable power system; stability analysis; stability control; stability monitoring

(This special issue belongs to the Section F1: Electrical Power System)

Geothermal Energy Heating Systems

edited by Guosheng Jia, Wenke Zhang, Fujiao Tang and Siyu Qin

submission deadline 24 Nov 2025 | 3 articles | Viewed by 2014 | Submission Open

Keywords: geothermal heating system; borehole heat exchanger; energy efficiency; numerical simulation; operating optimization; comprehensive utilization

(This special issue belongs to the Section H2: Geothermal)

Advancements in Energy Storage Technologies

edited by Qiyao Yu

submission deadline 24 Nov 2025 | 3 articles | Viewed by 2007 | Submission Open

Keywords: energy storage devices; new applications; energy transformation; design; energy storage efficiency; high energy density; environmentally friendly equipment; power system; energy storage technology trends

(This special issue belongs to the Section D: Energy Storage and Application)

Fuel and Energy: Unlocking the Potential of Combustion Research Techniques

edited by

Yingtao Wu

submission deadline 24 Nov 2025 | 1 articles | Viewed by 1806 | Submission Open

Keywords: combustion technology; alternative fuels; including biofuels (e.g.; ethanol; biodiesel); e-fuels (e.g.; methanol; dimethyl ether); chemical kinetics; experimental methods; theoretical modeling; uncertainty analysis; sustainable energy

(This special issue belongs to the Section I2: Energy and Combustion Science)

Progress in Electromagnetic Analysis and Modeling of Heating Systems

edited by Michele Forzan, Egbert Baake and Koen Van Reusel

submission deadline 24 Nov 2025 | 3 articles | Viewed by 1763 | Submission Open

Keywords: electromagnetic processing of material; induction heating; magnetohydrodynamics; dielectric heating; numerical modeling; coupled problems; optimization; thermal process electrification; digital twins; machine learning; innovative applications in electrical heating

(This special issue belongs to the Section J: Thermal Management)

Waste-to-Energy and the Circular Economy: Towards Sustainable Resource Management

edited by

Alexandra V. Michailidou

submission deadline 24 Nov 2025 | 1 articles | Viewed by 1725 | Submission Open

Keywords: resource recovery; waste management; waste utilization; circularity

(This special issue belongs to the Section B: Energy and Environment)

Sustainable Energy Solutions Through Microbial Enhanced Oil Recovery

edited by

Kai Cui

submission deadline 24 Nov 2025 | 1 articles | Viewed by 1432 | Submission Open

Keywords: utilization of energy-efficient microorganisms for resource recovery; green and low-carbon oil production technology; nutrient activators; petroleum reservoir microbiological ecosystem; microbe-based composite oil-pushing agent technology; microbe selection

(This special issue belongs to the Section A: Sustainable Energy)

Renewable Energy and Power Electronics Technology

edited by

Minh-Chau Dinh

and

Jae-In Lee

submission deadline 24 Nov 2025 | 1 articles | Viewed by 1331 | Submission Open

Keywords: renewable energy; energy conversion; energy storage; grid forming; virtual power plant (VPP); advanced power electronics converters; design; modelling; control

(This special issue belongs to the Section D: Energy Storage and Application)

Engineering for Turbomachinery

edited by

Yun Zheng

submission deadline 24 Nov 2025 | 1 articles | Viewed by 1087 | Submission Open

Keywords: computational fluid dynamics (CFD) analysis; aerodynamics; structure dynamics; aeromechanics; energy conversion; thermodynamic cycles and power plants; cycle innovations; heat transfer and thermal management; combustion fuels and emissions; biomass and alternative fuels; compressor; turbines; turbulence; wakes; compressor stall and surge; compressible flow; multiphase flows; aircraft engines; fluid-structure interaction; stability and transition

(This special issue belongs to the Section A: Sustainable Energy)

Innovations in Low-Carbon Building Energy Systems

edited by Jun Wang,

Rongpeng Zhang

and Zhiang Zhang

submission deadline 24 Nov 2025 | 1 articles | Viewed by 843 | Submission Open

Keywords: building energy efficiency; low-carbon energy system; renewable energy utilization; multi-energy complementation; energy management

(This special issue belongs to the Section G: Energy and Buildings)

Advances in Hydrogen Energy and Power System

edited by

Zhen Dong

submission deadline 24 Nov 2025 | 1 articles | Viewed by 659 | Submission Open

Keywords: power-to-hydrogen; green hydrogen production; modern power systems; multi-energy systems with hydrogen; fuel cells

(This special issue belongs to the Section A5: Hydrogen Energy)

Advanced Heat and Mass Transfer Technologies for Sustainable Energy Systems

edited by Chenglong Zhou and

Dilin Chen

submission deadline 24 Nov 2025 | 1 articles | Viewed by 632 | Submission Open

Keywords: heat and mass transfer; heat exchangers; thermal storage; thermal transport; sustainable energy systems; carbon footprint

(This special issue belongs to the Section J1: Heat and Mass Transfer)

Recent Advances in Photoelectrochemical Hydrogen Generation

edited by Ottavia Bettucci

submission deadline 24 Nov 2025 | Viewed by 545 | Submission Open

Keywords: photoelectrochemical (PEC) hydrogen generation; solar-to-hydrogen efficiency; catalysts for water splitting; sustainable energy systems; photoelectrode materials; interface engineering; hybrid PEC systems

(This special issue belongs to the Section A5: Hydrogen Energy)

Technological Prospects of Hydrogen Production

edited by

Razieh Rafieenia

submission deadline 24 Nov 2025 | Viewed by 533 | Submission Open

Keywords: biohydrogen; electrolysis; hydrogen economy; energy transition; renewable energy; photocatalysis

(This special issue belongs to the Section A5: Hydrogen Energy)

Theoretical Model and Experimental Validation of PEM Fuel Cell

edited by

Tiancai Ma

submission deadline 24 Nov 2025 | Viewed by 377 | Submission Open

Keywords: PEMFC; optimal design; model validation; BOPs; fuel cell system

(This special issue belongs to the Section D2: Electrochem: Batteries, Fuel Cells, Capacitors)

Advances in Energy Market and Sustainable Energy Solutions for Africa

edited by

Raphaël Schneider

and David Tsuanyo

submission deadline 24 Nov 2025 | Viewed by 343 | Submission Open

Keywords: sustainable energy; energy markets; solar; wind; hydroelectric; bioenergy; smart grid microgrid; energy management

(This special issue belongs to the Section A: Sustainable Energy)

Smart and Sustainable Energy Systems: Optimization, Modeling, and Management for Global Energy Challenges

edited by

Ahmed Shaban

Nasr Al-Hinai

, Mahmood Al-Kindi and Hakan Gultekin

submission deadline 24 Nov 2025 | Viewed by 256 | Submission Open

Keywords: smart and sustainable energy systems; energy system modeling and optimization; energy efficiency and conservation; lifecycle analysis of energy systems; resilient energy infrastructure; decision support for energy management; AI and data analytics in energy; energy system planning and operation; maintenance and reliability engineering; multi-criteria decision making (MCDM) in energy

(This special issue belongs to the Section F5: Artificial Intelligence and Smart Energy)

Advanced Materials Applied in Lithium-Ion Batteries

edited by Zhuo Li, Daren Wu and Zhihengyu Chen

submission deadline 24 Nov 2025 | Viewed by 210 | Submission Open

Keywords: lithium-ion batteries; advanced materials; cathode materials; anode materials; electrolytes; battery safety; energy density; battery fabrication optimization; battery fabrication techniques

(This special issue belongs to the Section D2: Electrochem: Batteries, Fuel Cells, Capacitors)

Integrated Approaches to Sustainable Energy Technologies: Life Cycle Assessment, Circular Economy, and Energy Transition

edited by Natalia Cano

submission deadline 24 Nov 2025 | Viewed by 195 | Submission Open

Keywords: sustainable energy; renewable energy; non-renewable energy; enhanced oil recovery (EOR); energy transition; life cycle assessment (LCA); social life cycle assessment (S-LCA); circular economy; energy efficiency; power systems integration; energy storage; critical raw materials

(This special issue belongs to the Section A: Sustainable Energy)

New Challenges in Energy Efficiency and Management for Sustainable Energy Systems

edited by

Yang Wang

and Xuhang Shi

submission deadline 24 Nov 2025 | Viewed by 177 | Submission Open

Keywords: energy efficiency; smart energy management; renewable integration; energy storage; sustainable energy systems; demand-side management; smart grids; energy policy

(This special issue belongs to the Section A: Sustainable Energy)

Next-Generation Thermo-Electro-Hydrogen Solutions: Hybrid Intelligence for Integrated Energy Systems

edited by

Diana Enescu

and

Hai-Wen Li

submission deadline 24 Nov 2025 | Viewed by 164 | Submission Open

Keywords: hydrogen energy systems; green hydrogen; thermal– electrical– hydrogen coupling; hybrid renewable systems; artificial intelligence in energy; integrated energy systems; thermoelectric generators; energy harvesting; smart control; resilience; system integration

(This special issue belongs to the Section A5: Hydrogen Energy)

Energy Efficiency, Low Carbon Resources and Renewable Technology: 2nd Edition

edited by

Mehreen Saleem Gul

and

Hassam Nasarullah Chaudhry

submission deadline 24 Nov 2025 | Viewed by 153 | Submission Open

Keywords: energy efficiency; renewable systems; low-carbon solutions; energy supply and demand; climate change; case studies and innovative approaches; modelling and simulation

(This special issue belongs to the Section B: Energy and Environment)

Advanced Nuclear Energy Systems: Design and Engineering Innovations

edited by Jerzy Cetnar

submission deadline 24 Nov 2025 | Viewed by 135 | Submission Open

Keywords: advanced nuclear reactor design; small modular reactors (SMRs); high-temperature gas-cooled reactors (HTGRs); molten salt reactors (MSRs); fast neutron reactors; nuclear core and fuel design; advanced nuclear fuel cycles; passive safety in nuclear reactors; reactor thermal hydraulics; multi-physics simulation; digital twins for nuclear systems

(This special issue belongs to the Section B4: Nuclear Energy)

Artificial Intelligence and Systemic Resilience: Energy, Finance, and Logistics in Sustainable Supply Chains

edited by