Impact of the Photovoltaic Integration on the Hydrothermal Dispatch on Power Systems

The amount of electricity generated by traditional power plants accompanied by the non-conventional renewable resources has increased significantly in the latest years in Honduras. This is leading to a different dispatch operation that guarantees the lowest cost, optimizing the water resource installed and operated in the Honduran power system. The purpose of this paper is to study the effect on the operation of the Honduran power system with the incorporation of photovoltaic (PV) generation and to compare the operation prior to the installation of such generation. Finally, it is proposed that the optimal hydrothermal dispatch of the system allows us to reduce the marginal costs of operation in a medium-term study horizon. To achieve this objective, in this study the operation of the electric system will be simulated using the Stochastic Dual Dynamic Programming (SDDP) software that allows us in a study horizon to estimate the function of future costs with optimal hydrothermal dispatch optimization.