It is our great pleasure to invite you to participate in the 6th World Conferenceon Photovoltaic Energy Conversion (WCPEC-6). This event will begin with opportunities for educational enhancement through a variety of tutorial topics on Sunday 23rd November, 2014. The conference proper will take place from Monday 24th to Thursday 27th November, 2014, at the Kyoto International Conference Center in Kyoto, Japan. Although previous WCPEC events have been held over 5 days, from Monday to Friday, this one is scheduled to last 4 days, from Monday to Thursday. The conference, hosted by the WCPEC Organizing Committee, is a joint conference of the 24th Asia/Pacific PVSEC (PVSEC-24), the 41st IEEE PVSC and the 30th European PVSEC. We look forward to submissions of excellent papers, not only in the traditional areas of photovoltaics such as c-Si, thin-film materials (Si, CIGS, CdTe), III-V materials and organic materials, but also in fundamentals and new materials, modules and system development, concentrators, space applications and national programs and policies. Japan’ s energy supply system is now facing a fundamental review as a result of the nuclear power plant accident following the 2011 East Japan Earthquake and Tsunami. This has led to a new recognition of the importance of photovoltaics. In Japan, there is currently a great deal of activity in photovoltaic research and development, such as the development of next-generation solar cells, and innovative solar cell development as part of the Fukushima recovery operation, beginning with PV introductory measures such as grant-aided projects for domestic solar power systems, and so-called “feed-in tariff” fixed-price power buy-back schemes. The holding of the WCPEC-6 event in November 2014 will no doubt serve as an excellent opportunity to convey the results of these various projects to the wider world.