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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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Conversion and High-Value Utilization of Biomass Resources
edited by
submission deadline 6 Nov 2025 | Viewed by 184
Keywords: biomass; biomass conversion; pellet; combustion; exhaust emissions; waste management; heat flow; computer modeling and simulations
(This special issue belongs to the Section A: Sustainable Energy)
Leveraging Flexibility Resources to Enhance Renewable Energy Integration and Grid Stability
edited by Yikui Liu, Qian Li and Jinjing Tan
submission deadline 7 Nov 2025 | 13 articles | Viewed by 13314 | Submission Open
Keywords: renewable energy integration; grid flexibility; market incentives; distributed energy resources; energy storage systems; grid stability
(This special issue belongs to the Section A: Sustainable Energy)
Development of Distributed Energy Systems Based on Renewable Energy Sources—Current Status and Development Prospects
edited by , Jakub Grela and Rafał Andrzejczyk
submission deadline 10 Nov 2025 | 9 articles | Viewed by 19217 | Submission Open
Keywords: renewable energy sources; distributed energy; hybrid systems; photovoltaic; heat pump; small wind turbine; small water turbine; small biogas installation; building energy management systems; demand side management and response; IoT applications and artificial intelligence
(This special issue belongs to the Section A: Sustainable Energy)
New Insights into Hybrid Renewable Energy Systems in Buildings submission deadline 10 Nov 2025 | 7 articles | Viewed by 14749 | Submission Open
Keywords: hybrid renewable energy; electrical vehicles; energy storage; smart buildings; building management system
(This special issue belongs to the Section G: Energy and Buildings)
The Interplay Between Technologies and Energy Policies for Reducing the Environmental Impact of Transportation: Scenarios and Case Studies
edited by
submission deadline 10 Nov 2025 | 3 articles | Viewed by 10415 | Submission Open
Keywords: energy and transport; passenger and freight transport and energy consumption; transport modes: road; rail; maritime and air; regulation; fiscal and energy policies; total cost of ownership of transport vehicles; energy efficiency and transport vehicles; GHG emission reduction; renewable energy and transport; electrification and innovative fuels and powertrains
(This special issue belongs to the Section C: Energy Economics and Policy)
Recent Advances in Oil Shale Conversion Technologies
edited by
submission deadline 10 Nov 2025 | 6 articles | Viewed by 8996 | Submission Open
Keywords: oil shale; conversion; pyrolysis; in situ; catalytic
(This special issue belongs to the Section H: Geo-Energy)
Enhanced Oil Recovery: Numerical Simulation and Deep Machine Learning
edited by Maojie Chai, and
submission deadline 10 Nov 2025 | 9 articles | Viewed by 8324 | Submission Open
Keywords: enhanced oil recovery (EOR); numerical simulation; machine learning; data-driven approach
(This special issue belongs to the Section H: Geo-Energy)
Power Quality and Disturbances in Modern Distribution Networks submission deadline 10 Nov 2025 | 5 articles | Viewed by 7505 | Submission Open
Keywords: power quality disturbance; harmonics; power system virtual/synthetic inertia; power converters control; microgrid power quality
(This special issue belongs to the Section A1: Smart Grids and Microgrids)
Future Perspectives of Internal Combustion Engines of High Efficiency: Analysis, Modeling and Control Strategies and Application of Sustainable Fuels submission deadline 10 Nov 2025 | 4 articles | Viewed by 7405 | Submission Open
Keywords: internal combustion engines; injection systems; combustion; ammonia; hydrogen; combustion control; combustion modeling; innovative control strategy
(This special issue belongs to the Section I2: Energy and Combustion Science)
Towards Sustainable Energy Development: Energy Efficiency and Economic Growth
edited by
submission deadline 10 Nov 2025 | 5 articles | Viewed by 5069 | Submission Open
Keywords: energy efficiency; economic growth; renewable energy integration; environmental sustainability; energy policy; technological innovation; climate; sustainable development goals; energy transition; green economy
(This special issue belongs to the Section C: Energy Economics and Policy)
Advancement of Experimental and Modeling Approaches for Development of Hydrogen Energy Systems
edited by
submission deadline 10 Nov 2025 | 3 articles | Viewed by 4419 | Submission Open
Keywords: hydrogen fuel; electrolyzers; fuel cells; hydrogen liquefiers; computational fluid dynamics; cryogenics; two-phase flow; system instabilities; techno-economic analysis
(This special issue belongs to the Section A5: Hydrogen Energy)
Clean Use of Fuels: Future Trends and Challenges submission deadline 10 Nov 2025 | 3 articles | Viewed by 4155 | Submission Open
Keywords: pollutant control; renewable fuels; fossil fuels; waste-to-energy; techno-economic and life cycle assessments; process simulation and modeling; fuels for sustainable transport; decentralized use of fuels for homes; production optimization; waste reduction and valorization
(This special issue belongs to the Section B: Energy and Environment)
Advanced Energy Conversion Technologies Based on Energy Physics
edited by Xiaoyang Wang, Jie Gao, Jianhua Zhou and Lei Miao
submission deadline 10 Nov 2025 | 3 articles | Viewed by 3568 | Submission Open
Keywords: energy conversion technologies; energy physics; solar energy; photovoltaics; thermoelectric conversion; thermionic conversion; chemical energy; fuel cells; hydrogen production; bioenergy; biomass; biofuels; advanced materials; nanomaterials; computational methods; modeling and simulation; sustainable energy; renewable energy; waste heat recovery; catalysis; reaction engineering
(This special issue belongs to the Section A: Sustainable Energy)
Development of Intelligent Electric Vehicles and Smart Transportation—2nd Edition
edited by
submission deadline 10 Nov 2025 | 3 articles | Viewed by 3415 | Submission Open
Keywords: electric vehicles; hybrid vehicles; intelligent vehicle systems; intelligent transportation; autonomous vehicle
(This special issue belongs to the Section E: Electric Vehicles)
Artificial Intelligence in Photovoltaic Systems: Advanced Modeling, Optimization, Forecasting, and Fault Diagnosis
edited by and
submission deadline 10 Nov 2025 | 1 articles | Viewed by 3068 | Submission Open
Keywords: artificial intelligence (AI); photovoltaic systems (PV); solar energy; performance prediction; fault detection; predictive maintenance; maximum power point tracking (MPPT); PV system optimization; solar forecasting; energy storage; microgrid management; smart grid integration; IoT in renewable energy; hybrid AI models; multi-agent systems; data-driven control; sustainable energy transition
(This special issue belongs to the Section A2: Solar Energy and Photovoltaic Systems)
Sustainable Energy Futures: Economic Policies and Market Trends submission deadline 10 Nov 2025 | 4 articles | Viewed by 2767 | Submission Open
Keywords: sustainable energy; economic policies; policy contagion; connectedness; spillover; renewable energy; energy market; artificial intelligence (AI)
(This special issue belongs to the Section C: Energy Economics and Policy)
Study on Biomass Gasification and Pyrolysis Process
edited by and Halina Pawlak-Kruczek
submission deadline 10 Nov 2025 | 1 articles | Viewed by 1838 | Submission Open
Keywords: biomass gasification; pyrolysis; plasma; modeling; experiment
(This special issue belongs to the Section A4: Bio-Energy)
High Efficiency, Quality, and Stable Operation Technology for Flexible Distribution Networks submission deadline 10 Nov 2025 | 3 articles | Viewed by 1541 | Submission Open
Keywords: distribution networks; flexible regulation equipment; operation control; optimal dispatching; power quality management; emergency power support; grid-following/grid-forming converters
(This special issue belongs to the Section F1: Electrical Power System)
Phase Change Materials for Thermal Energy Storage: Advances and Applications
edited by Giuseppe Langella, Abolfazl Nematpourkeshteli, and
submission deadline 10 Nov 2025 | 2 articles | Viewed by 1283 | Submission Open
Keywords: thermal energy storage; phase changing materials; advanced materials for thermal storage; metal foams; nanoparticles; smart thermal energy storage systems
(This special issue belongs to the Section G2: Phase Change Materials for Energy Storage)
Evaluating the Impact of Energy Policies and Energy Economics: Trends, Risks and Challenges submission deadline 10 Nov 2025 | 2 articles | Viewed by 1281 | Submission Open
Keywords: energy transition; green deal; clean energies; renewable energies; green energies; blue energies; climate-neutral energies; reduction of polluting energies; wellbeing economics and energy; energy efficiency; energy markets; sustainable development goals
(This special issue belongs to the Section C: Energy Economics and Policy)
New Challenges in Power Flow Optimization for Integrated Power Systems
edited by
submission deadline 10 Nov 2025 | 2 articles | Viewed by 1277 | Submission Open
Keywords: power flow modeling and optimization; integration of renewable and distributed energy resources; simulation of smart grids and microgrids; real-time power flow control and management; optimization through energy storage system integration; enhancing power grid stability and efficiency; design of hybrid energy systems; AI- and machine learning-based power flow optimization; innovative protection and control strategies
(This special issue belongs to the Section A1: Smart Grids and Microgrids)
Recent Developments of Wind Energy: 2nd Edition
edited by
submission deadline 10 Nov 2025 | 2 articles | Viewed by 1070 | Submission Open
Keywords: dynamics and control; power electronics; generators; power transmission and distribution; wind rotor technology; wind farm planning; wind loads and structural response; optimization of energy systems
(This special issue belongs to the Section A3: Wind, Wave and Tidal Energy)
Research on Operation Optimization of Integrated Energy Systems submission deadline 10 Nov 2025 | 1 articles | Viewed by 946 | Submission Open
Keywords: multi-energy flow management; renewable energy integration; smart grid control strategies; decentralized energy optimization
(This special issue belongs to the Section F5: Artificial Intelligence and Smart Energy)
Advanced Inverter Technologies: Enhancing Efficiency in Power Conversion Systems
edited by Li Zhang and
submission deadline 10 Nov 2025 | 1 articles | Viewed by 599 | Submission Open
Keywords: power converter technologies; renewable sourced generation; smart grid; electric vehicles; wide-bandgap switching devices
(This special issue belongs to the Section F3: Power Electronics)
Energy Transition Towards Climate Neutrality
edited by and Mafalda Silva
submission deadline 10 Nov 2025 | Viewed by 522 | Submission Open
Keywords: energy transition; policy; pathways; renewable energy; energy efficiency; just transitions
(This special issue belongs to the Section B: Energy and Environment)
Challenges and Future Trends of Artificial Intelligence for Energy Management
edited by
submission deadline 10 Nov 2025 | Viewed by 312 | Submission Open
Keywords: artificial intelligence (AI); deep learning; digital twins; energy management; smart grids; energy forecasting; distributed energy; renewable resources
(This special issue belongs to the Section F5: Artificial Intelligence and Smart Energy)
New Design and Research on Offshore Wave and Tide Energy Technologies
edited by Zhanhong Wan and Guiyu Cao
submission deadline 10 Nov 2025 | Viewed by 274 | Submission Open
Keywords: assessment of tidal energy resources; realistic turbulent inflows; tide and wave interactions; tidal turbine design and optimization; tidal turbine hydrodynamics; tidal turbine array and blockage effects; tidal wakes; wave power generation device design; hydrodynamic analysis; theoretical model optimization; evaluation of wave energy capture efficiency; simulation of hydraulic power output system; array parameter influence; array algorithm optimization; multi-body platform linkage simulation; coupling between floating body and platform
(This special issue belongs to the Section A3: Wind, Wave and Tidal Energy)
Innovations in Thermal Energy Processes and Management
edited by and Yunlin Shao
submission deadline 10 Nov 2025 | 1 articles | Viewed by 227 | Submission Open
Keywords: thermal energy systems; thermal management; phase change materials; smart thermal management; energy efficiency; sustainable energy
(This special issue belongs to the Section J: Thermal Management)
Trends and Prospects in DC–DC/DC–AC Converters and Their Control Techniques for Renewable Energy Applications: 2nd Edition
edited by
submission deadline 10 Nov 2025 | Viewed by 185 | Submission Open
Keywords: DC– DC/DC– AC converters; control strategies; modulation techniques; renewable energy; power electronics
(This special issue belongs to the Section F: Electrical Engineering)
Thermal Hydraulics and Modelling for Nuclear Energy Systems
edited by
submission deadline 10 Nov 2025 | Viewed by 175 | Submission Open
Keywords: thermal fluid systems; heat transfer; thermal hydraulics; nuclear reactor systems; modelling and simulation; digital twins; nuclear energy
(This special issue belongs to the Section A: Sustainable Energy)
Advances in Novel Fuels—Production, Combustion, and Application: 2nd Edition submission deadline 10 Nov 2025 | Viewed by 173 | Submission Open
Keywords: synthetic sustainable fuels including e-fuels and biofuels; aviation fuels; maritime fuels; fuels for road transport; sustainable energy for power generation; production; market launch; regulations; certification and specification; techno-economic analysis; life-cycle analysis (LCA); computational fluid dynamics (CFD); combustion; engine; gas turbine; generic experiments; reduction in pollutants; emissions and their impact on the environment (e.g.; global warming potential— GWP non-CO2-effects and human health); chemical kinetic modeling; generation of detailed and reduced reaction models; machine learning; artificial intelligence
(This special issue belongs to the Section I1: Fuel)
Innovative Bio-Based Construction Strategies for Near-Zero Energy Buildings with Low Carbon Footprints
edited by Xunzhi Yin and
submission deadline 10 Nov 2025 | Viewed by 141 | Submission Open
Keywords: bio-based building materials; straw-based building; low-cost; near-zero and zero energy building; passive low-energy design
(This special issue belongs to the Section G: Energy and Buildings)
Carbon Dioxide Capture, Utilization and Storage (CCUS): 3rd Edition submission deadline 10 Nov 2025 | Viewed by 139 | Submission Open
Keywords: CO2 capture; CO2 conversion and reduction; biomass thermal conversion; Oxy-fuel or chemical looping combustion; CO2 storage; CO2 mineralization; other greenhouse gas emissions control
(This special issue belongs to the Section B: Energy and Environment)
Advances in Marine Energy Storage Technology
edited by
submission deadline 10 Nov 2025 | Viewed by 130 | Submission Open
Keywords: compressed air energy storage; oil & gas storage; thermal energy storage; flexible gas storage technology; hydrogen storage; AI/ML-based control; renewable energy integration; efficient energy conversion
(This special issue belongs to the Section D: Energy Storage and Application)
Solar Cells: Materials Design and Performance Optimization
edited by and
submission deadline 10 Nov 2025 | Viewed by 87 | Submission Open
Keywords: perovskite solar cells; quantum dot solar cells; thin-film technologies; stability enhancement; AI-driven optimization; tandem/bifacial PV; interface engineering; advanced characterization
(This special issue belongs to the Section A2: Solar Energy and Photovoltaic Systems)
Wireless Charging Technologies for Electric Vehicles
edited by , Xin Gao and Ying Liu
submission deadline 15 Nov 2025 | 3 articles | Viewed by 4014 | Submission Open
Keywords: wireless charging; electric vehicles; magnetic coupler; resonant compensation; converter; system control; performance improvement; applications
(This special issue belongs to the Section E: Electric Vehicles)
Performance and Emissions of Advanced Fuels in Combustion Engines
edited by , Dai Liu and
submission deadline 19 Nov 2025 | 2 articles | Viewed by 3148 | Submission Open
Keywords: low-carbon technologies; combustion engines; alternative fuels; hydrogen; ammonia; ethanol; methanol; modelling; testing
(This special issue belongs to the Section I2: Energy and Combustion Science)
Energy from Waste: Optimizing Recovery Processes in Wastewater Treatment submission deadline 19 Nov 2025 | Viewed by 152 | Submission Open
Keywords: wastewater energy recovery; energy from wastewater; wastewater treatment energy; biogas production wastewater; direct osmosis wastewater (DO); reverse electrodialysis wastewater (RED); wastewater heat recovery; sustainable wastewater treatment; circular economy wastewater; optimizing wastewater treatment energy
(This special issue belongs to the Section B: Energy and Environment)
Sustainable Energy Management for a Circular Economy submission deadline 20 Nov 2025 | 4 articles | Viewed by 34925 | Submission Open
Keywords: primary resource consumption; barriers to renewable energy expansion; management of energy industry supply; costs of transition towards renewable energy; recycling of solar panels; energy turbines; mills; and batteries; rising demand for rare-earth elements; managerial solutions allowing the use of untapped resources contained in used batteries; transfer of knowledge and intersectional clusters for novel solutions
(This special issue belongs to the Section C: Energy Economics and Policy)
Smart Grid and Energy Storage
edited by
submission deadline 20 Nov 2025 | 10 articles | Viewed by 17305 | Submission Open
Keywords: smart grid; energy storage; renewable energy integration; demand response
(This special issue belongs to the Section A1: Smart Grids and Microgrids)
Artificial Intelligence and Machine Learning New Concepts in SMART Energy Systems submission deadline 20 Nov 2025 | 2 articles | Viewed by 12572 | Submission Open
Keywords: application of AI and ML for the effective use of energy storage; using the Internet of Things to minimize energy consumption; costs and emissions; optimization of energy flow; smart energy optimization; smart energy systems: smart power system control; smart thermal system control; smart cross-sector control; the utilization of clean or renewable energy; the reliability and resilience of energy systems; system integration among multiple energy sectors
(This special issue belongs to the Section F5: Artificial Intelligence and Smart Energy)
Economic Approaches to Energy, Environment and Sustainability
edited by
submission deadline 20 Nov 2025 | 7 articles | Viewed by 9246 | Submission Open
Keywords: energy economics; environmental economics; sustainability economics
(This special issue belongs to the Section C: Energy Economics and Policy)
Energy Poverty Alleviation, Renewable Energy Investment and High-quality Economic Development in Emerging Economies
edited by
submission deadline 20 Nov 2025 | 3 articles | Viewed by 8342 | Submission Open
Keywords: energy poverty alleviation; renewable energy investment; energy policies; renewable energy projects; technological innovation; energy transition; energy transformation partnership
(This special issue belongs to the Section C: Energy Economics and Policy)
Advances in Optimal Control and Smart Operation of Renewable Energy Systems
edited by Zhihuai Xiao, Dong Liu, , Yan Ren and Jingjing Zhang
submission deadline 20 Nov 2025 | 7 articles | Viewed by 7705 | Submission Open
Keywords: hydropower; wind power; photovoltaic power generation; nonlinear modelling; stability analysis; fault diagnosis; trend prediction; state assessment; optimal control; system integration; multi-energy complementarity; multi-field coupling; system capacity allocation; joint dispatch optimization; artificial intelligence; optimization algorithm
(This special issue belongs to the Section A: Sustainable Energy)
Recent Studies on Flow, Atomization, and Combustion in Swirl Combustors
edited by Cunxi Liu and Qiang An
submission deadline 20 Nov 2025 | 6 articles | Viewed by 7595 | Submission Open
Keywords: swirling flows; spray combustion; atomization; optical diagnostics; alternative fuels; flame dynamics
(This special issue belongs to the Section I2: Energy and Combustion Science)
Advanced Energy Technologies and Energy Savings: Low Emissions and High Efficiency
edited by Shujun Zhu, Shuai Guo, and Lianfei Xu
submission deadline 20 Nov 2025 | 5 articles | Viewed by 7043 | Submission Open
Keywords: renewable energy; traditional energy; energy saving; high efficiency; low emissions
(This special issue belongs to the Section B: Energy and Environment)
Advanced Structures, Fault Diagnosis and Tolerant Control of Permanent Magnet Synchronous Motors: 2nd Edition
edited by and
submission deadline 20 Nov 2025 | 4 articles | Viewed by 6599 | Submission Open
Keywords: novel PMSM structures; air gap filed modulation theory; advanced PMSM control strategies; electric machine theory and analysis methods; servo motor; high-precision control; magnetic field modulation; winding theory; system-level optimization on drive systems; innovative design methodology; fault diagnosis; tolerance algorithm; linear PMSM technology
(This special issue belongs to the Section F: Electrical Engineering)
Novel Research on Renewable Power and Hydrogen Generation
edited by
submission deadline 20 Nov 2025 | 3 articles | Viewed by 4865 | Submission Open
Keywords: renewable energy technologies; solar energy; wind energy; bioenergy; hydrogen energy; hydrogen generation; fuel cells
(This special issue belongs to the Section A: Sustainable Energy)
Smart Optimization and Renewable Integrated Energy System submission deadline 20 Nov 2025 | 2 articles | Viewed by 4470 | Submission Open
Keywords: distributed renewable energies; energy storage systems; energy management system; smart grids; microgrids; nanogrids; off-grid electrical systems; frequency control and stabilization; resilience in modern electrical systems; energy control and optimization systems
(This special issue belongs to the Section B: Energy and Environment)
Energy Policies and Sustainable Development submission deadline 20 Nov 2025 | 3 articles | Viewed by 4040 | Submission Open
Keywords: sustainable energy systems; energy strategies; energy economy; energy efficiency; renewable energy sources; energy supply and demand; energy policy
(This special issue belongs to the Section C: Energy Economics and Policy)
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