Environment-Friendly Energies and Applications (EFEA) is a forum for bringing academics, scientists, engineers and industry together to discuss the recent developments in environment friendly energies and their applications. The main theme of this conference is on renewable and sustainable energy systems, hybrid transportation systems, energy tranision and energy security. The 7th Edition of EFEA will be held in Flic en Flac, Mauritius, on December 14-16, 2022. The event will be hosted by Université des Mascareignes, in close collaboration with University of Northumbria, and the University of Aberdeen.