Solar energy, Wind energy, Hydro energy, Wave energy, Geothermal energy, Waste-to-Energy technology, Hydrogen and Fuel cell technologies, Carbon capture technology, Low carbon technology, Thermo-electrics system, Energy harvesting technology, etc.

Carbonization, Pyrolysis, Gasification, Hydrothermal carbonization, Hydrothermal liquefaction, Hydrothermal gasification, Anaerobic digestion, Aerobic digestion, Catalytic process, Activated carbon, Reaction and Catalytic Engineering, Biotechnology, Waste Management, etc.

Carbon materials, Activated carbon production, Adsorption process, Nanotechnology, Advance Material, Pollution reduction, Environmental protection, Water and Environmental Engineering, Energy storage, Energy conversion, CO2 capture and utilization, etc.

Buildings innovation and technology, Energy efficiency technology, Energy conservation technology, Sustainable and smart cities, HVAC systems, etc.

Renewable energy optimization, Power plant optimization, Energy storage optimization, Smart grids, Demand forecasting, Others optimization and AI of energy systems, etc.

Techno-economic energy, Energy management, Environmental assessment, Life-cycle assessment, Energy auditing, Energy trading, Policy on renewable energy and energy efficiency, Energy and environment policies and frameworks, Carbon tax and financing, etc.