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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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Advanced Nuclear Energy Systems: Design, Analysis and Calculation Methods
edited by Qian Zhang and
submission deadline 30 Dec 2026 | 5 articles | Viewed by 3955 | Submission Open
Keywords: advanced nuclear reactors; generation IV reactors; small modular reactors (SMRs); reactor design and safety analysis; neutronics and reactor physics; thermal–hydraulics; advanced calculation methods; high-fidelity simulation; uncertainty quantification; artificial intelligence in nuclear engineering
(This special issue belongs to the Section B4: Nuclear Energy)
Exploring Energy Innovations: The Rise of Next-Generation Photovoltaic Modules
edited by and Chaehwan Jeong
submission deadline 30 Dec 2026 | 3 articles | Viewed by 2896 | Submission Open
Keywords: next-generation PV modules; tandem solar cells and modules; bifacial PV modules; shingled and/or lightweight PV modules; perovskite/silicon tandem modules; module integration technologies; advanced encapsulation and packaging; angular response of PV modules; temperature and spectral effects; field performance monitoring; degradation and reliability; lifecycle assessment and recyclability; PV module modeling and simulation; sustainable solar technology
(This special issue belongs to the Section A2: Solar Energy and Photovoltaic Systems)
Development of Energy Harvesting Systems and Methods from Uncommon Sources: 2nd Edition
edited by
submission deadline 30 Dec 2026 | 3 articles | Viewed by 2831 | Submission Open
Keywords: energy harvesting; energy sources; unconventional sources and methods; smart methods; artificial intelligence methods; distributed systems; waste utilizing; post-mining energy; post-industry energy; biological energy systems; metrological problems; personal devices; micro and nano devices; energy storage systems
(This special issue belongs to the Section D: Energy Storage and Application)
Advances in Hydrogen Storage: Strategies, Technologies, Safety and Future Directions
edited by
submission deadline 30 Dec 2026 | 2 articles | Viewed by 2002 | Submission Open
Keywords: hydrogen; storage; liquified; pressurized; safety; risk assessment; fire; explosion; siting; layout
(This special issue belongs to the Section A5: Hydrogen Energy)
Trends and Challenges in Power System Stability and Control: 2nd Edition
edited by Ke Xu and
submission deadline 30 Dec 2026 | 1 articles | Viewed by 987 | Submission Open
Keywords: electricity market; market clearing; power system control; power system stability; power system operation; renewable energy resources; intelligent techniques; power system analysis; power system protection; renewable energy integration; smart grid; microgrid
(This special issue belongs to the Section F: Electrical Engineering)
Bridging the Gap Between Field Studies and Laboratory Experiments on Gas Hydrates
edited by , and
submission deadline 30 Dec 2026 | 1 articles | Viewed by 696 | Submission Open
Keywords: natural gas hydrates (NGHs); gas hydrate exploration and production; thermodynamics and kinetics of hydrates; gas hydrate geohazards and climate change; gas hydrate-bearing sediments; gas–oil–hydrate system; CO2-CH4 hydrate replacement
(This special issue belongs to the Section H: Geo-Energy)
Environmental Biotechnologies for Bioenergy from Waste Valorization submission deadline 30 Dec 2026 | 1 articles | Viewed by 607 | Submission Open
Keywords: waste valorization; anaerobic digestion; co-digestion strategies; biohydrogen and biogas; bioprocess modeling (ADM1); life cycle assessment (LCA); circular bioeconomy
(This special issue belongs to the Section A4: Bio-Energy)
Sustainable Energy Transition: Economic Challenges and Opportunities
edited by
submission deadline 30 Dec 2026 | 1 articles | Viewed by 461 | Submission Open
Keywords: sustainable energy transition; energy economics; decarbonization; renewable energy investment; green finance; climate and energy policy; just transition; green innovation; energy security; circular economy
(This special issue belongs to the Section C: Energy Economics and Policy)
Recent Advances in Thermoelectric Power Generation
edited by Matthew Barry
submission deadline 30 Dec 2026 | Viewed by 397 | Submission Open
Keywords: thermoelectric generator; waste heat recovery; Seebeck effect; Peltier effect; Thomson effect; Domenicali equation; heat exchanger; multiphysics coupling; uncertainty quantification; model-form uncertainty; verification and validation; integrated thermoelectric device; pumping power; net power output; reproducibility
(This special issue belongs to the Section J: Thermal Management)
Progress and Prospects in Thermal Energy Storage Systems
edited by and Ahmed Elgafy
submission deadline 30 Dec 2026 | Viewed by 320 | Submission Open
Keywords: heat storage; PCM; heat transfer enhancement; porous media for heat storage; fluid flow; enhancing cycling charge/discharge heat capacity and dynamic; topology; high-conductivity foam; pumped thermal electricity storage
(This special issue belongs to the Section J: Thermal Management)
Energy Performance of Photovoltaic Power Systems
edited by and Nabin Sarmah
submission deadline 30 Dec 2026 | Viewed by 189 | Submission Open
Keywords: PV power system; PV performance; BIPV; PV curtailment and congestion; PV economics and viability analysis; storage for PV energy
(This special issue belongs to the Section A2: Solar Energy and Photovoltaic Systems)
Innovative HVAC Solutions for Sustainable Building Energy Use
edited by
submission deadline 30 Dec 2026 | Viewed by 132 | Submission Open
Keywords: HVAC systems; building energy efficiency; sustainable buildings; building carbon neutrality; building decarbonization; renewable energy integration; low-carbon HVAC; building energy optimization
(This special issue belongs to the Section G: Energy and Buildings)
Energy, Engineering and Materials 2024 submission deadline 31 Dec 2026 | 3 articles | Viewed by 8479 | Submission Open
Keywords: renewable energy; clean energy; advanced manufacturing; material optimization; energy efficiency; smart technologies; sustainable engineering
(This special issue belongs to the Section D1: Advanced Energy Materials)
Reliability of Power Electronics Devices and Converter Systems: 2nd Edition
edited by Jun Wang, Jun Zhang, , and Hengyu Yu
submission deadline 31 Dec 2026 | 12 articles | Viewed by 8370 | Submission Open
Keywords: power device; power converter; reliability
(This special issue belongs to the Section F3: Power Electronics)
Advanced Control and Operation of Distributed Energy Resources in Modern Power Systems
edited by and
submission deadline 31 Dec 2026 | 8 articles | Viewed by 6221 | Submission Open
Keywords: distributed energy resources; power distribution systems; integration of renewable energy resources; power system stability; flexibility; sector coupling; advanced distribution management systems (ADMS); distributed energy resource management systems (DERMS); non-wires alternatives (NWA); microgrids; virtual power plants; demand response; distribution system operator (DSO); TSO–DSO cooperation
(This special issue belongs to the Section A1: Smart Grids and Microgrids)
Advances in Design, Operation and Maintenance Technology for Electric Power Equipment—2nd Edition
edited by Jiachen Gao, Tianyan Jiang, Yaqi Fang and Jinxin Cao
submission deadline 31 Dec 2026 | 6 articles | Viewed by 5943 | Submission Open
Keywords: electric power equipment; electrical insulation; multiphysics; operation and maintenance; artificial intelligence
(This special issue belongs to the Section F: Electrical Engineering)
Advanced Machine Learning and Data Analysis Technologies in Modern Energy Systems
edited by
submission deadline 31 Dec 2026 | 4 articles | Viewed by 5882 | Submission Open
Keywords: machine learning in energy systems; fault diagnosis and resilient control; data-driven energy optimization; multi-source data fusion; explainable artificial intelligence (XAI)
(This special issue belongs to the Section F5: Artificial Intelligence and Smart Energy)
Energy Transition: Interaction of Gas/Hydrogen and Electricity Systems
edited by and Venizelos Venizelou
submission deadline 31 Dec 2026 | 4 articles | Viewed by 5684 | Submission Open
Keywords: energy transition; decarbonization; hydrogen integration; power-to-gas; energy storage; gas-hydrogen-electricity interaction; policy and regulation
(This special issue belongs to the Section A: Sustainable Energy)
Economic Analysis and Policies in the Energy Sector—2nd Edition
edited by
submission deadline 31 Dec 2026 | 3 articles | Viewed by 5166 | Submission Open
Keywords: economic growth and the environment: eco-friendly policies; methodologies for studying the environment in all its dimensions: the visual dimension, pollution, the despoliation of resources, air and water quality, noise pollution; biodiversity and valuation; acid rain, deforestation, ozone depletion, polluted seas; global warming and climate change; population, poverty and economic growth; decoupling of environmental and resource pressures; sustainable transportation; sustainable tourism; environmental efficiency and productivity analysis; sustainable development; waste management; unexpected events
(This special issue belongs to the Section C: Energy Economics and Policy)
CO2 Emissions from Vehicles (Volume III) submission deadline 31 Dec 2026 | 2 articles | Viewed by 4934 | Submission Open
Keywords: transport; autonomous vehicles; CO2 emission; emission modelling; fuel consumption; exhaust emission; global warming; greenhouse gases; combustion engines; electromobility; hybrid and electric vehicles; fuel cell vehicles
(This special issue belongs to the Section B: Energy and Environment)
Subsurface Energy and Environmental Protection—2nd Edition submission deadline 31 Dec 2026 | 8 articles | Viewed by 4054 | Submission Open
Keywords: oil and gas contamination/remediation; environmental monitoring and control; environmental friendly materials and techniques in oil and gas development; environmental issues regarding the exploitation of natural gas hydrates; enhanced oil recovery (EOR); microbial enhanced oil recovery; CO2 enhanced oil recovery; CO2 capture; utilization and storage (CCUS); underground hydrogen storage (UHS); geothermal exploitation
(This special issue belongs to the Section H: Geo-Energy)
Emerging Technologies and Sustainability Assessment for Waste Biomass to Energy submission deadline 31 Dec 2026 | 3 articles | Viewed by 3666 | Submission Open
Keywords: waste biomass conversion; biomass for bioenergy; emerging bioenergy technologies; sustainability assessment; life cycle assessment (LCA); social life cycle assessment (S-LCA); prospective LCA; techno-economic assessment (TEA); waste-to-energy systems; biorefinery integration; thermochemical and biochemical processes; circular bioeconomy
(This special issue belongs to the Section A4: Bio-Energy)
Circular Economy Mechanisms for Improving Energy Efficiency
edited by , and Luminita Georgeta Popescu
submission deadline 31 Dec 2026 | 3 articles | Viewed by 3223 | Submission Open
Keywords: life-cycle assessment (LCA); energy footprint; optimization/modeling; industrial symbiosis; digitalization for energy management; energy-intensive industries; energy system modeling; circular business models
Advances in the Optimization and Control of Solar Integrated Energy Systems submission deadline 31 Dec 2026 | 4 articles | Viewed by 2843 | Submission Open
Keywords: solar energy systems; system optimization; model predictive control; adaptive control; multi-objective optimization; concentrated solar power; photovoltaics and hybrid systems; water–energy nexus; solar desalination; multi-objective optimization; digital twins and machine learning
(This special issue belongs to the Section A2: Solar Energy and Photovoltaic Systems)
Energy Harvesting and Wireless Power Transfer for 6G Sustainable IoT Networks
edited by and
submission deadline 31 Dec 2026 | 2 articles | Viewed by 1964 | Submission Open
Keywords: smart grids and microgrids; sustainable energy networks; energy harvesting; wireless power transfer (WPT); electric vehicles (EVs) and UAVs; 6G and IoT; machine learning and AI; spectrum sharing and cognitive radio
(This special issue belongs to the Section F: Electrical Engineering)
Sustainable and Low Carbon Development in the Energy Sector—2nd Edition submission deadline 31 Dec 2026 | 2 articles | Viewed by 1954 | Submission Open
Keywords: renewable energy systems; energy transition; distributed generation; low-carbon development; climate change; energy internet; smart grids; environmental economics; low-carbon agriculture; energy conservation
(This special issue belongs to the Section A: Sustainable Energy)
Innovations in Hydropower and Energy Storage: Bridging Renewable Energy Solutions
edited by Baoshan Zhu, Haoru Zhao and
submission deadline 31 Dec 2026 | 4 articles | Viewed by 1939 | Submission Open
Keywords: hydropower technology; pumped storage hydropower (PSH); fluid machinery; hybrid renewable systems; grid flexibility; hydraulic system design; condition monitoring; environmental sustainability
(This special issue belongs to the Section A: Sustainable Energy)
Artificial Intelligence for Next-Generation Solar Energy Systems
edited by and Gisele Alves Dos Reis Benatto
submission deadline 31 Dec 2026 | 1 articles | Viewed by 1795 | Submission Open
Keywords: artificial intelligence in solar energy; photovoltaic diagnostics and monitoring; electroluminescence and thermal image processing; large language models (LLMs) for PV systems; explainable AI (XAI) in solar energy; digital twins and predictive modelling; real-time AI-based PV fault detection; intelligent energy forecasting and optimization
(This special issue belongs to the Section A2: Solar Energy and Photovoltaic Systems)
Intelligent, Data-Driven, and Trustworthy Methods for Energy System Optimization, Monitoring, and Fault Diagnosis
edited by
submission deadline 31 Dec 2026 | 2 articles | Viewed by 1527 | Submission Open
Keywords: intelligent fault diagnosis; data-driven modeling; hybrid AI methods; renewable energy systems; smart grids; digital twins; deep learning; kernel-based learning; multimodal data fusion; uncertainty-aware modeling; explainable AI; trustworthy AI; predictive maintenance; energy system optimization; real-time monitoring; fault-tolerant control
(This special issue belongs to the Section F5: Artificial Intelligence and Smart Energy)
Challenges and Opportunities in the Global Clean Energy Transition—2nd Edition submission deadline 31 Dec 2026 | 2 articles | Viewed by 1416 | Submission Open
Keywords: energy harvesting, conversion and storage; energy effective and robotized manufacturing; green and smart transport; digital technologies for sustainable industry and society; innovations focused on improving the quality of life
(This special issue belongs to the Section B2: Clean Energy)
Industrial Energy Efficiency Toward a Sustainable Future
edited by
submission deadline 31 Dec 2026 | 1 articles | Viewed by 1400 | Submission Open
Keywords: industrial energy efficiency; sustainable manufacturing; smart manufacturing; energy monitoring; process optimization; predictive maintenance; machine learning; digital twins; anomaly detection; Industry 4.0; energy-intensive equipment
(This special issue belongs to the Section A: Sustainable Energy)
Modular Multilevel Converters: Technologies, Control and Applications
edited by Jinyu Wang, Tan Li and
submission deadline 31 Dec 2026 | 2 articles | Viewed by 1282 | Submission Open
Keywords: modular multilevel converters; modulation techniques; capacitor voltage balancing; circulating current control; fault protection and fault-tolerant control; HVDC transmission; medium- and high-voltage electric drives; power quality improvement
(This special issue belongs to the Section F: Electrical Engineering)
Electric and Hybrid Vehicles: Technology Trends, Challenges and Opportunities—3rd Edition submission deadline 31 Dec 2026 | 1 articles | Viewed by 1183 | Submission Open
Keywords: electric vehicles; charging stations; smart grids; renewable energy; energy efficiency and demand response; energy storage systems; power quality; vehicle dynamics; motion control; vehicle stability control; environmental issues; life-cycle assessment
(This special issue belongs to the Section E: Electric Vehicles)
Advanced Nuclear Energy Science and Technology: Theory, Utilization, and Challenges submission deadline 31 Dec 2026 | 2 articles | Viewed by 826 | Submission Open
Keywords: nuclear energy; fusion; ITER; fission reactors; gen IV reactors; SMRs; tritium; breeding blankets; nuclear materials
(This special issue belongs to the Section B4: Nuclear Energy)
High-Performance Turbomachinery for Energy Systems: Simulation and Applications submission deadline 31 Dec 2026 | 1 articles | Viewed by 688 | Submission Open
Keywords: turbomachinery; energy systems; computational fluid dynamics; numerical simulations; compressors; gas turbines; steam turbines; wind turbines; pumps; thermal dynamics; combustion; high performance; energy transition; design optimization; multi-disciplinary simulations; unsteady flow; transient operations; flow instabilities; artificial intelligence (AI); machine learning (ML)
(This special issue belongs to the Section J: Thermal Management)
Advances in Energy Efficiency for Wireless Power Transfer Systems submission deadline 31 Dec 2026 | 1 articles | Viewed by 669 | Submission Open
Keywords: wireless charging; EV; high-power charging; coils; control techniques; efficiency
(This special issue belongs to the Section F: Electrical Engineering)
Intelligent Energy Management Systems: Challenges, Development and Prospects
edited by
submission deadline 31 Dec 2026 | Viewed by 614 | Submission Open
Keywords: transactive energy management system; multi-agent and distributed IEMS; embedded system for energy management demand; fault detection and diagnosis in energy management systems; decentralized microgrid control; IoT and machine learning in IEMS; intelligent control algorithms in IEMS; dynamic optimization and optimal control theory in EMS; adaptive control in EMS; optimizing charging schedules and IEMS; IEMS and data analysis; IEMS and renewable energy sources; uncertainty optimization in IEMS; EMS cybersecurity; HVAC systems; extensions fuzzy sets and LLM in EMS; knowledge-based expert systems and fuzzy logic systems in EMS; reinforcement learning; machine learning control; energy forecasting; electricity price prediction; field-programmable gate arrays (FPGAs) in EMS; decision support systems managing uncertainty in IEMS; fuzzy logic
(This special issue belongs to the Section F5: Artificial Intelligence and Smart Energy)
Advanced Battery Technologies for Energy Storage
edited by and
submission deadline 31 Dec 2026 | 1 articles | Viewed by 547 | Submission Open
Keywords: advanced battery technologies; energy storage; electrode materials; electrolytes; battery management systems; state of battery estimation and prediction; artificial intelligence diagnostics and prognostics; renewable energy integration; battery recycling; sustainable energy systems
(This special issue belongs to the Section D2: Electrochem: Batteries, Fuel Cells, Capacitors)
Smart Grid Opportunities and Challenges in Integrating Renewable Energies
edited by Thanh Hai Nguyen
submission deadline 31 Dec 2026 | Viewed by 473 | Submission Open
Keywords: smart grids; renewable energy systems; reliability; energy efficiency; power management; power electronics; power converter; microgrids; electric vehicles
(This special issue belongs to the Section A1: Smart Grids and Microgrids)
Smart Control Strategies for Modern Electric Drives and Power Converters submission deadline 31 Dec 2026 | Viewed by 462 | Submission Open
Keywords: electrical drives; power converters; new control algorithms; artificial intelligence; optimization and estimation; diagnostics, monitoring, and maintenance; innovative hardware solutions
(This special issue belongs to the Section F: Electrical Engineering)
Integrated Approaches to Energy Efficiency in Modern Buildings submission deadline 31 Dec 2026 | Viewed by 421 | Submission Open
Keywords: energy efficiency; building energy performance; HVAC systems; energy management; renewable energy integration; smart buildings
(This special issue belongs to the Section G: Energy and Buildings)
Advances in Sustainable Bio-Processes for Energy and High-Value Products
edited by and
submission deadline 31 Dec 2026 | Viewed by 355 | Submission Open
Keywords: sustainable bioenergy; alternative feedstocks; innovative conversion processes; renewable energy production; value-added bio-based products
(This special issue belongs to the Section A4: Bio-Energy)
Advances in Electrocatalysis for Carbon Reduction and Clean Energy
edited by
submission deadline 31 Dec 2026 | Viewed by 327 | Submission Open
Keywords: CO2 reduction; clean energy; mechanistic studies; reactor engineering; carbon capture
(This special issue belongs to the Section I3: Energy Chemistry)
Mathematical Modeling Approaches in the Energy Systems
edited by
submission deadline 31 Dec 2026 | Viewed by 312 | Submission Open
Keywords: power system; mathematical modeling; system control; new energy; artificial intelligence; power electronics
(This special issue belongs to the Section K: State-of-the-Art Energy Related Technologies)
Emerging Computational and Experimental Approaches for Carbon Utilization and Emission Reduction in Energy Systems
edited by Diego I. Oyarzun
submission deadline 31 Dec 2026 | Viewed by 236 | Submission Open
Keywords: electrochemical energy systems; CO2 capture, conversion, and utilization; energy storage; process optimization and simulation; autonomous experimentation; computational modeling; machine learning for energy applications
(This special issue belongs to the Section B3: Carbon Emission and Utilization)
Microgrids and Their Application to Integrated Energy Systems and Islanded Active Distribution Networks—3rd Edition submission deadline 31 Dec 2026 | Viewed by 190 | Submission Open
Keywords: optimization under uncertainty; risk modeling; quality of supply assessment; grid resiliency performance; probabilistic network analysis; integration of RES; behind-the-meter energy storage systems; utility-scale storage systems; hydrogen-based energy storage systems; AC/DC microgrids building microgrids; net-zero energy buildings (NZEB); integrated port energy systems; island microgrids; maritime microgrids; microgrid clusters/communities; ancillary services under high-variable RES penetration; ancillary services in islanded and grid-connected mode; vehicle-to-grid (V2G) or boat-to-grid (B2G)
(This special issue belongs to the Section A1: Smart Grids and Microgrids)
Artificial Intelligence for Urban Energy Systems: Modeling, Forecasting, and Optimization submission deadline 31 Dec 2026 | Viewed by 184 | Submission Open
Keywords: artificial intelligence; multi-vector energy systems; urban building energy modeling (UBEM); positive energy districts (PEDs); renewable energy communities (RECs); energy forecasting and optimization
(This special issue belongs to the Section G1: Smart Cities and Urban Management)
Alternative Fuels and Combustion Technologies for Next-Generation Engines submission deadline 31 Dec 2026 | Viewed by 177 | Submission Open
Keywords: alternative fuel; internal combustion engines; sustainable aviation fuels; emission reduction; next generation engines; hydrogen combustion; e-fuels
(This special issue belongs to the Section I2: Energy and Combustion Science)
Renewable Energy Systems and Sustainable Building Strategies for Net-Zero Energy Urban Districts
edited by Roberto Stasi, and
submission deadline 31 Dec 2026 | Viewed by 166 | Submission Open
Keywords: energy communities; renewable energy systems; sustainable building strategies; positive energy districts; smart grids and microgrids
(This special issue belongs to the Section G: Energy and Buildings)
Sustainable Energy Management for a Circular Economy—2nd Edition submission deadline 31 Dec 2026 | Viewed by 140 | Submission Open
Keywords: renewable energy transition; circular economy; sustainable resource management; fossil fuel dependence; carbon emission reduction; recycling and waste management
(This special issue belongs to the Section C: Energy Economics and Policy)
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