Electrical Energy Supply Alternatives Analysis for an Isolated Community – Pozo Hondo, Paraguayan Chaco

摘要

This investigation aims to propose a solution to the lack of electricity supply to the city of Pozo Hondo, a community belonging to the Paraguayan Chaco. A financial analysis is carried out for the proposal of a system that supplies the electric power to the town. Additionally, a multicriteria analysis was carried out with the following evaluation criteria: the cost of energy, levels of greenhouse gas emissions and feasibility or political decision. The premise applied in the analysis of the projection of the electric power demand of the village was based on historical data from villages of similar characteristics within the country. The energy supply alternatives considered were: thermal (diesel), renewable (wind and solar) and an extension of the distribution line (23kV). In order to find the best alternative, the HOMER Pro® software was used, which in the simulation process obtains optimum system arrangements as results. With the optimized models, the Monte Carlo methodology is applied so as to introduce fluctuations in the price of diesel fuel into the financial analysis in such a way as to contrast the thermal generation with the generation based on renewable energy. Finally, the Analytic Hierarchy Process (AHP) is applied to obtain the most convenient alternative, taking into account multiple criteria. The research concludes that the optimal supply solution, considering multiple criteria would be that of a hybrid system (thermal and solar).