Power Engineering:
Power system
Smart grid
Power electronics 
Distributed power generation
Power transmission
Electrical component network
Power transmission and distribution system and equipment
Energy Internet
Electric vehicle
Microgrid
Tides, waves, oceans, rivers, and
Hydroelectric power generation system
Power system and its automation
Power system planning and scheduling
Power quality protection and electromagnetic compatibility
Electric motor:
Control motor
Electrical and Electronic Technology
Motor and drive system
Power transmission and distribution system and equipment
Motor and Electrical Testing Technology
Manufacturing process of motors and electrical appliances
Microelectromechanical systems and equipment
Mechanical Manufacturing Systems and Automation
Energy storage:
Electrochemical energy storage
Thermal energy storage
Mechanical energy storage
Wind energy storage
Hydrogen energy storage
Inductive energy storage
Pumped storage power generation
Capacitive energy storage system
Energy storage materials
Solar cell
Fuel cell
Capacitors, supercapacitors
Lithium battery
Lithium ion battery
Sodium ion battery