Power electronics is the core technology for electrical energy conversion and conditioning and addresses the environmental requirement of the efficient use of energy whilst providing the required technological interface electrical generation and energy requirements of industry, transport and the community at large. Indeed, it is often the cost, functionality and reliability of power electronic systems that define the capabilities and performance envelopes of key energy related technologies:

It is the enabling technology for the machine drives. Approximately 50% of generated electricity is used to drive electrical motors in industry and utilities. Power electronic energy conditioning for machines has been one of the most significant factors in energy saving over the past twenty years in addition to improving the performance and productivity of manufacturing processes. Its use in industry is still s growth area and accounts for the majority of the present world market in power electronics.

It is a key technology for the integration of renewable energy sources and storage technologies in to suitable high quality power distribution systems. It is becoming increasingly realised that without controlled power electronic interfaces and conditioning equipment, high quality power distribution, especially with dense renewable energy generation, will not have a sustainable future.

It is the enabling technology for the more-electric vehicular platforms including aircraft, marine transport and surface transport including electric and hybrid cars, busses, lorries and tracked vehicles.

Power electronics will increase its penetration in to the domestic and built environment, covering diverse applications from domestic appliances and supplies, through to building and utility energy management.

Although the above applications for power electronics are not exhaustive, they illustrate the growing importance of the technology in the modern world. The increasing application areas together with advances in materials, device, component, signal processing, sensor and communication technology all ensure a vigorous research and development culture whilst providing substantial opportunities for commercial exploitation.