(Topics include but are not limited to)
Topic 1: Energy
National/Global Energy Internet
energy conservation
sustainable development
Sustainable Energy Policy
renewable energy
green technology
Green energy
Progress in Green Energy Technology
The Future of Green Energy Systems
Nano environmental protection technology
Energy System Modeling and Research
Energy storage and conversion
Sustainable Energy and Environmental Impact
Solar energy utilization
wind energy utilization
Biomass energy utilization
Energy Management System
Energy storage system
Carbon Capture and Storage
clean energy technology
Distributed power generation and clean energy generation, grid connection and control technology
Energy storage
Green energy development technology
Natural gas hydrate development technology
Renewable energy development technology
Geothermal energy and hydrogen energy development technology
Energy saving technology
energy management
Energy Conversion and Application
wind engineering 
water resource
nuclear engineering
Hydrogen energy resources
Hydrogen and fuel cells
Energy materials
Clean coal and fossil fuels
Biomass Energy Engineering
Storage technology
Energy saving technology
Energy Chemical Engineering
Energy equipment
Green building materials
energy security
Energy saving lighting products and technologies
New energy vehicles
electric vehicle
Energy Security and Clean Utilization
Green energy system
Green power production and cogeneration
Wind power generation control
Electrical Automation and Power Engineering
Mechanical Automation Engineering
Topic 2: Power
engineering thermophysics
thermal engineering
Power Machinery and Engineering
Fluid Machinery and Engineering
Heating, Ventilation, Air Conditioning, and Refrigeration
Power system and automation
High voltage and insulation technology
Motor and Electrical
Electrical Engineering Theory and New Technologies
thermal power
engine manufacturing
Power electronics and electric drive
Smart grid technology
Power System Management
Manufacturing Automation
Precision Automation
information automation
Biomedical Automation 
Chemical automation and instrumentation
hydraulic transmission
Topic Three: Machinery
aerodynamics
Aerospace Systems and Technology
alternative energy sources
Applied Mechanics and Design
composite material
Computational Fluid Dynamics
design and manufacture
Energy conversion system
energy management
fluid dynamics
Fuels and Combustion
green manufacturing
heat and mass transfer
Solid Mechanics and Fracture Mechanics
heat transfer
Industrial engineering
Mechanical Design and Methods
Digital design and topology optimization
Functional Surface Interface Technology
Mechanical System Dynamics and Fault Diagnosis Technology
Biomechanical systems
Exoskeletons and biomechanical systems
Instrumentation and control
Internal combustion engine
Machine Design and Manufacturing
machinery dynamics
Micro and nano manufacturing
Micro and nano materials
Process modeling
nanotechnology
Noise and vibration analysis
System optimization
Refrigeration and air conditioning
Renewable and non renewable energy sources
Advanced Manufacturing Methods
Collaborative robots and industrial robots
artificial intelligence technology
Micro nano systems and applications
Software driver and perception
Design and analysis of deployable structures
Theory and Application of Multibody Dynamics