2027 5th International Forum on Clean Energy Engineering (FCEE 2027) will be held during April 26-28, 2027 in Seoul, South Korea. Conference Website: https://fcee.net/ Conference Venue: Seoul, South Korea FCEE 2027 Shining Points: 1. Papers submitted to FCEE 2027 will go through peer review process by international experts. Selected papers will be published in the International Conference Proceedings of E3S Web of Conferences (Open Access proceedings in Environment, Energy and Earth Sciences), which will be sent to Scopus, CPCI (Web of Science), CAS, DOAJ, EBSCO, ProQuest and other major databases for indexing. 2. FCEE 2027 will be held in Seoul, South Korea. 3.The 2026 4th International Forum on Clean Energy Engineering (FCEE 2026) concluded successfully in Seoul, South Korea, earning high recognition and positive feedback from experts and scholars around the world. 4. All accepted and presented papers of FCEE 2026 has been published in E3S Web of Conferences Volume 714 (2026) and will be sent to Scopus, CPCI (Web of Science), CAS, DOAJ, EBSCO, ProQuest and other major databases for indexing. Call for papers 1. Advanced Renewable Energy Technologies High-efficiency photovoltaic materials and tandem solar cells Perovskite solar cells: stability, scalability, and commercialization Floating offshore wind turbine design and dynamics Next-generation onshore wind turbine aerodynamics and control Hybrid wind-solar-storage system integration Small-scale distributed wind energy systems Advanced geothermal exploration and drilling technologies Enhanced geothermal systems (EGS) and reservoir stimulation Tidal stream and wave energy converter innovations Run-of-river and small-scale hydropower advancements 2.Energy Storage, Grid Integration, and Smart Systems Lithium-ion battery advancements: anodes, cathodes, and electrolytes Solid-state batteries: materials, interfaces, and manufacturing Sodium-ion and potassium-ion battery technologies Flow batteries for large-scale grid energy storage Compressed air energy storage (CAES) systems Pumped-hydro storage and underground reservoir options Green hydrogen production via electrolysis (PEM, alkaline, SOEC) Hydrogen storage and transport: liquid, compressed, and LOHCs Hydrogen fuel cells for stationary and transportation applications Power-to-X (P2X): hydrogen, ammonia, methanol, and synthetic fuels 3. Clean Fossil Energy, Carbon Management, and Negative Emissions Carbon capture, utilization, and storage (CCUS) technologies Post-combustion CO2 capture via chemical absorption and membranes Pre-combustion capture and integrated gasification combined cycle (IGCC) Oxy-fuel combustion and CO2-rich flue gas processing Direct air capture (DAC): adsorbents, sorbents, and regeneration Mineral carbonation and accelerated weathering for permanent storage Geological CO2 storage: site characterization and monitoring CO2 utilization for enhanced oil recovery (EOR) and methane recovery Carbon-neutral synthetic fuels from captured CO2 and green hydrogen Bioenergy with carbon capture and storage (BECCS) Biochar production and soil carbon sequestration applications Enhanced weathering and ocean alkalinity enhancement Methane capture from oil/gas operations and coal mines 4.Energy Efficiency, Circular Economy, and Sustainable Policy Industrial waste heat recovery and cogeneration systems High-efficiency combined heat and power (CHP) plants Energy-efficient building envelopes: materials and smart glazing HVAC system optimization with AI and IoT sensors Energy-efficient lighting, motors, and variable-speed drives Data center cooling innovation and waste heat reuse Process integration and pinch analysis for energy-saving design Circular economy in energy equipment manufacturing and recycling Recycling and second-life applications for EV and grid batteries Recovery of critical raw materials (lithium, cobalt, rare earths) Sustainable supply chains for solar panels, wind turbines, and electrolyzers Eco-design and life-cycle sustainability assessment (LCSA) Energy-water nexus: integrated resource planning Paper Publishing Papers submitted to FCEE 2027 will go through peer review process by international experts. Selected papers will be published in the International Conference Proceedings of E3S Web of Conferences (Open Access proceedings in Environment, Energy and Earth Sciences), which will be sent to Scopus, CPCI (Web of Science), CAS, DOAJ, EBSCO, ProQuest and other major databases for indexing. Committee Conference Chair Tae-Jun HA, Kwangwoon University, South Korea Technical Program Chairs Yonghoon Kim, Sungkyunkwan University, South Korea Hossam A. Gabbar, Ontario Tech University, Canada Xiao-Dong Zhou, University of Connecticut, USA Proceedings Editors Hossam A. Gabbar, Ontario Tech University, Canada Ali Arefi,Murdoch University, Western Australia Technical Publicity Chair Jinqiang Zhang, The University of Adelaide, Australia keynote Speakers: Mohini Sain University of Toronto, Canada Ernest Kian Jon Chua National University of Singapore, Singapore Dong-Won Kang Chung-Ang University, South Korea Program at a Glance April 26, 2027 | Monday 10:00 - 17:00 Participants Onsite Registration & Conference Materials Collection April 27, 2027 | Tuesday 09:00 - 10:15 Opening Ceremony and Keynote Speeches 10:15 - 10:30 Group Photo Taking and Coffee Break 10:30 - 12:00 Parallel Oral Sessions 12:00 - 13:30 Buffet Lunch 13:30 - 15:15 Keynote Speeches 15:15 - 15:30 Coffee Break 15:30 - 18:30 Parallel Oral Sessions 19:00 - 20:30 Dinner Banquet April 28, 2027 | Wednesday 10:00 - 17:00 One Day Social Program Submission and Contact Methods Submission Methods: Electronic Submission System: https://confsys.iconf.org/submission/fcee2027 E-mail: fcee@iap.org Conference Specialist: Ms. Vera Liao For more information about FCEE2027, please visit our conference website:https://fcee.net/