Report: 6th Grove Fuel Cell Symposium: London, UK; 13–16 September 1999 The Sixth Grove Symposium, marking 10 years since the first event, continued its trend of attracting a far-reaching audience, with backgrounds ranging from fuel cell developers to utilities, materials scientists to investment banks, oil companies to government agencies, and from 34 different countries. More than 400 delegates — nearly half from beyond Europe — were able to review the latest developments in the various technologies, and the status of the numerous projects going on or planned around the world.