The objective of this research study is to estimate the energy potential of producer gas obtained from agroindustrial residues of cocoa and oil palm in Peru by using downdraft gasifier technology. This is performed based on the Serrato mathematical model, but applied to gasification processes proposed by Roy's model. The equilibrium constants and the kinetic velocity of the Roy's model are adjusted with multiplicative factors for fragments raging from 3.3 to 5.5 cm. This is validated using experimental data obtained from the literature. The maximum energy potential of the producer gas from the cocoa pod husk and oil palm empty fruit in Peru is estimated to be 4016.4 and 2108.7 TJ / year, respectively, for 3.3cm fragments. It is concluded that gasification using downdraft gasifiers is a good option to generate agro-industrial waste bioenergy to solve electrical and thermal energy shortages in Peruvian remote areas.