Power Electronics, Electrical Machines and Networks Power electronics 69 Engineering 36 Energy Systems 26 Energy systems 26 Force and energy 26 Power (Mechanics) 26 Power resources 26 Energy 25 Automatic control 17 Control 16 Clean energy industries 14 Renewable and Green Energy 14 Renewable energy resources 14 Renewable energy sources 14 Electronic circuits 11 Circuits and Systems 8 Electrical engineering 6 Communications Engineering, Networks 5 Electric power production 5 Electronic Circuits and Devices 5 Electronics 5 Energy Policy, Economics and Management 5 Energy Technology 5 Energy policy 5 Industrial safety 5 Quality Control, Reliability, Safety and Risk 5 Quality control 5 Reliability 5 Electronics and Microelectronics, Instrumentation 4