Guest Editorial: 9th Photovoltaic Science, Application and Technology Conference (PVSAT-9), Swansea University, 10–12 April 2013

This is the first special section by IET-Renewable Power Generation on this conference series. PVSAT was established in 2003 to serve the needs of the UK as well as international community for a focal point of materials and applied research in photovoltaics in a manageable size conference without parallel sessions. The concept of a residential conference has been very successful and since 2007 (PVSAT-3) this is an annual event with in excess of 60 papers and 100 researchers participating. In 2013 PVSAT has teamed up with IET-RPG to publish a special edition of the engineering related papers of this conference.