The Energy Conversion Congress and Exposition was first held in 2009. It was and is a collaborative effort between two societies within the IEEE: The Power Electronics Society (PELS) and the Industrial Power Conversion Systems Department (IPCSD) of the Industry Application Society (IAS). The motivation for creating yet another conference came from the feeling that the technology and innovations activities in energy conversion − while having burgeoned and blossomed as they were served faithfully by the two societies − has evolved to be too cumbersome to adequately serve the energy conversion community within the confines of the existing conferences of the two societies. This is partly due to the many disparate conferences which cover the area but are of a more regional nature. The leadership of the two societies committed to the idea of establishing a singular conference, global in scope and format which will pursue an ambitious and forward thinking agenda serving the needs of the industry and academia in the broad field of energy conversion and all its facets. ECCE was the result of this idea, its mission is to meet the needs of a community which is diverse in nature and yet is unified in its pursuit of technology within the loosely defined market segment of energy conversion.