Une approche prospective des coûts de la chaîne logistique amont par la méthode PREVA dans un contexte de valorisation des algues sargasses

The objective of this article is to study the costs of the upstream supply chain in the context of sargassum seaweed valorization. This is a prospective approach whose chosen methodology consists of modeling an upstream supply chain by coupling discrete event simulation with cost process valuation using the activity-based costing (ABC) method. The resulting Process Evaluation (PREVA) method is considered relevant for simultaneously evaluating the financial flows and the physical flows of a logistics process. The stranding frequencies established for the arrival of the sargassum input were associated with two hypotheses for calculating transport costs: a fixed rate and one on a tour basis. The implementation of the processes for collecting and transporting sargassum seaweed to the hypothetical valorization site provides initial results in favor of the flat-rate cost, which is generally more advantageous for all sites.