- Energy Storage 60
- Renewable and Green Energy 60
- Energy Systems 49
- Electrical Engineering 23
- Control and Systems Theory 13
- Control, Robotics, Mechatronics 12
- Electronics and Microelectronics, Instrumentation 12
- Electrochemistry 5
- Optical and Electronic Materials 5
- Energy Materials 4
- Environmental Chemistry 4
- Energy Policy, Economics and Management 1
- Fossil Fuels (incl. Carbon Capture) 1
- Industrial Chemistry/Chemical Engineering 1
- Nuclear Energy 1
- Power Electronics, Electrical Machines and Networks 1
- Public Policy 1