The amount of biomass generated by the most representative species present in the urban areas of Cúcuta, Villa del Rosario and Los Patios was estimated in order to establish their potential (mass) in the generation of thermal energy. The methodology contemplated the identification of species, counting in neighborhoods and their projection to each of the municipalities studied. In the same way, the number of specimens present inside the homes was estimated. The generated biomass was determined, from the data of identified specimens, frequency and average amount of pruning collected, as well as the amount of dry mass and calorific power that can be obtained to carry out combustion. 13 species are the most representative in the generation of this waste, where Licania tomentosa and Azadirachta indica contribute more than 84% of the biomass generated, reaching a potential of 2,200 tons per month and an energy of 15305 kJ/kg.