(The following topics include but are not limited to)
Topic 1: Energy
Energy and Environment
Mineral Engineering
petroleum engineering 
Metallurgical Engineering
Rare Earth Engineering
oceanographic engineering
High tower installation project
methane
solar energy
Gas transmission and distribution project
Photovoltaic power generation
Offshore wind power
New energy vehicles
Charging station
heat pump
Energy Storage Systems and Technologies
Transmission and Distribution and Microgrid
Smart Grid and Smart City
Energy Internet
Energy planning and allocation
Energy storage and management
Energy equipment and engineering
Energy Conversion and Application
Heating power station
Construction projects of nuclear power plants and waste incineration power plants
Distributed energy
Wind power
Water conservancy, hydropower, and thermal power
Gas furnace
Energy saving and environmental protection technology
Temperature control design
refrigeration
Heating technology
Cold storage design
HVAC Engineering
light
Electrocatalysis
Roof technology
Grid connected power generation technology
Topic 2: Power and Mechanical Engineering
Electrification
Electric Vehicle Technology
New type of motor and its intelligent control technology
Electric motors and electrical equipment
Electromagnetic adaptability
Permanent magnet and reluctance motors
Advanced sensorless machine control
motor drive 
Control and mechatronics integration
Nonlinear Systems and Control
Intelligence and AI based control
Instrumentation and vibration control
Intelligent system sensors
Automation technology
Electromagnetics of Electrical Materials
Power Quality and Electromagnetic Compatibility 
Mechatronics and Robotics Technology
Electricians and Optoelectronic Materials
Electricity distribution
Smart Grid and Technology
Measurement and Control Technology and Instruments
Modern signal processing and detection technology
Geographic Information and Remote Sensing Science
Microwave millimeter wave testing technology and remote sensing
Application Theory of Automatic Control
Command and Control System Engineering
Control System Simulation Technology
Navigation Guidance and Control
Mechatronics technology
Fluid Transmission and Control
Automated instruments and devices
Robot control
Application of Automation Technology