• Clean energy technologies, such as biomass, solar, wind, geothermal, nuclear including SMRs, hydrogen, etc.
• Renewable energy resources to reduce the consumption of traditional fossil fuels
• Emerging technologies for renewable energy harvesting, conversion, and storage
• New concepts or devices for energy generation, conversion, and distribution
• Waste heat recovery and other industrial energy efficient technologies
• Energy education and energy regulation
• Scale-up, stability, and life-cycle analysis of energy technologies and improvement of existing energy-intensive processes
• Theory and simulation in energy harvesting, conversion, and storage
• Design, operation, and optimization of processes for energy generation (e.g., carbon capture) and conversion of energy carriers
• Energy efficiency improvement in process engineering (e.g., for biomass conversion and improved combustion) and electrical engineering (e.g., for power conversion and developing smart grids)
• Thermo-electric/electrolysis/photo-electrolysis/fundamentals of PV
• Emission control, CO2 capture, and conversion
• Carbon sequestration techniques
• CO2 and other greenhouse gas reduction metallurgy in ferrous (iron & steel making and forming), non-ferrous and reactive metals including critical rare-earth metals
• Sustainability and life cycle assessment of energy systems
• Thermodynamics and modelling for sustainable metallurgical processes
• 'Smart cool materials' for urban heat island mitigation (such as cool roof infrared reflecting material, and low-temperature heat absorbers for use in air conditioner condensers - like 'endothermic materials')
• Methodologies for reducing the cost of energy materials production
• Circular economy and developing resource efficiency model for cutting down the transport from remote places
• Materials extraction and processing steps for enhancing energy efficiencies in batteries, supercapacitors, and energy efficient cells
• Foundational industry (metals-alloys, chemicals, refractories, cement) and energy economy and role of mineral extraction