Implementing an anaerobic digestion (AD) unit on a territory can help meet several needs, since the AD process provides a solution for organic waste treatment, but also for GHG emissions reduction, renewable energy production or nutrient recovery. When environmental balance is set particularly through Life Cycle Assessment (LCA), the assessment should be based on the function fulfilled by the AD system, and the alternatives studied should reflect the actual opportunities of the implementation area. In this context, this study aims to develop a systemic spatial analysis of opportunities to develop biogas systems within any specific territory thanks to Geographic Information Systems (GIS). The production of biowaste, the agricultural practices and the outlets for energy recovery were studied through this framework for two contrasting territories. GIS treatments results showed AD schemes that differed depending on the features of territories. This work is a relevant previous step to LCA of collective AD plants.