Topic 1: New Energy Materials
New energy technology
Energy Conversion and Application
New Energy Conversion and Control Technology
New energy materials
Green energy materials
New Fuel Cells and Their Materials
Semiconductor Materials Technology
Thin film technology and its applications
Nova Optoelectronic Materials and Devices
Electronic Materials and Devices
Nuclear energy technology
Solar Energy Technology
Coal fired MHD power generation technology
Geothermal energy technology
Ocean Energy Technology
Geothermal energy
Solar energy
Wind energy
Hydropower
Biomass energy
Nuclear energy
Energy conversion
New energy development
Energy efficiency
Energy storage technology
Energy-saving technology
Sustainable Energy Technologies
Clean Production Technology
Energy Science and Technology
New energy vehicle
Electric power new energy
Renewable Energy Technologies and Systems
Energy Security and Clean Utilization
Photovoltaic
Biomass and biofuels
Topic 2: Green Energy
Renewable energy engineering (solar energy, bioenergy, wind energy, nuclear energy, hydrogen energy, etc.)
Traditional energy engineering (traditional electricity such as coal, oil, natural gas, etc.)
Energy materials
Energy storage technology
Energy-saving technology
Energy and Chemical Industry
Energy Security and Clean Utilization
Hazardous solid waste management
Sustainability of Society and Environment
Energy equipment and technology
Thermophysics and Thermal Energy Engineering
Clean energy technology
Energy storage technology
Green energy development technology
Natural gas hydrate development technology
Renewable energy development technology
Geothermal and hydrogen energy development technology
Energy-saving technology
Thermal and Power Engineering
Clean Development Mechanism 
Thermal, Hydraulic, and Safety Analysis of Nuclear Reactors
Non steady state thermodynamics