Abstract
Brazil is on the last mile of total electrification. However, the current challenge is in the Amazon region, where electrification has not been achieved through renewable energy. This paper presents a hybrid off-grid energy system for the Amazon region that considers the following technologies: battery system, diesel generator, micro-hydro, photovoltaic and wind turbine. We selected the states of Amazonas, Roraima and Tocantins, and we studied three scenarios. Benders decomposition and rolling horizon techniques are applied to find the optimal design and management strategy of a microgrid. We propose a novel approach to optimise energy storage for a whole year with hourly time step. A feasible design is proposed consisting of diesel generator, micro-hydro, photovoltaic, wind turbine, and battery system with diesel production as low as 0.7%. A 100% renewable microgrid is feasible for the Amazon region with an energy cost of 0.19 USD/kWh. The results are promising as they show competitive energy costs.
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