The organic waste is recycled in several ways, including incineration, composting and biomethanation. Controlled landfills are gradually built into the different regions of Morocco as they are considered a solution to avoid greenhouse gas emissions (GHG) and allow recovery of biogas as a renewable source to produce electricity. However few studies have evaluated the cost of waste management and the emissions balance sheet as equivalent Carbon emissions Reduction from these facilities. In this study we present an estimate of the kWh price in Dirhams (Dh) and of the Carbon credits and we establish two formulas than can facilitate their calculations in different sites according to different parameters