The IEEE Photovoltaic Specialist Conference is proud to host the 7th edition of the World Conference on Photovoltaic Energy Conversion (WCPEC-7). As it has been a tradition for nearly a quarter of a century, once every 4 years, three of world’s most prominent international photovoltaic technical conferences, the Photovoltaic Science and Engineering Conference (PVSEC), the European Photovoltaic Solar Energy Conference (EU PVSEC) and the IEEE Photovoltaic Specialist Conference (IEEE PVSC) merge into a global photovoltaic energy technical forum: the World Conference on Photovoltaic Energy Conversion. In 2018 the WCPEC-7, that combines the 45th IEEE PVSC, the 28th PVSEC and the 34th EU PVSEC, returns to the birth place of the World Conferences and will be held June 10-15, 2018, at the Hilton Waikoloa Village Resort and Conference facility on the Big Island of Hawaii.