The challenges of climate change involve rethinking the world's energy system. In particular, carbon capture and storage technologies are still presented as a solution to reach ambitious decarbonization targets, and particularly when associated with bioenergy resources due to the negative emission they allow. However, avoiding the required Gt of CO 2 emissions by investing in CCS technologies supposes the development of carbon storage capacities and, when associated with bioenergy, a plausible and sustainable potential of biomass resources. This analysis, conducted with the optimization model TIAM-FR (TIMES Integrated Assessment Model, a bottom-up, long-term and multiregional model), highlights the role of these elements in the future development of the BECCS option. More precisely, based, on the one hand, on an advanced methodology of biomass potential assessment, and, on the other hand, on detailed data of storage potential, including onshore and offshore classification, this study shows how such potentials may be a limit to the development of (bioenergy with) carbon capture and storage technologies. This analysis was performed through various scenarios investigated with different levels of potentials and different climate targets on the long-term. As a complement, we also discuss carbon transport costs variation effects and implement a scenario allowing the exclusion of onshore storage due to a hypothetic policy considering public resistance to onshore storage.