The bioenergy sector is becoming of increasing interest: the European Union is not an exception. Indeed, it is in need of solutions to face one of the worst energy crises of the last century. The sector's growth faces numerous challenges. The main use of energy crops, as feedstock, generates stiff competition on the use of land for food and energy purposes. The production of bioenergy has relevant environmental implications in terms of greenhouse gas emissions. The social aspects related to the bioenergy sector are also potential obstacles to its development. These pressing issues for policymakers call for a better understanding on how national and international laws should regulate the growth of the bioenergy sector. Flying over the economic, environmental, social, and legislative aspects faced by the bioenergy sector, we conclude on threads, opportunities, and priorities that should be considered for its development and propose directions for future studies.