Bioenergy is seen as an important component in the future sustainable energy system, which itself requires knowledge and understandings for sustainable utilisations of biomass fuels. The course provides in-depth knowledge of fuel characterisation, treatement and conversion technologies, environmental consequences, and resource utilisations related to bioenergy. Moreover, the course gives insight into different bioenergy systems, including bioheat, biopower, biofuel and biogas, and their combinations, with consideration of process integration for heat and material recovery. For biomass conversion technologies, emphasis will be placed on the thermochemcial approaches, which include combustion, gasification and pyrolysis. The biological approaches, bioethanol and biogas productions, are also be treated in the course, but to a lesser extent. System design and process simulation is an important part of the course.