Technical and economic evaluation of generation distributed with photovoltaic systems in public buildings
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.003.0043Keywords:
Photovoltaic Solar Energy, Renewable energy, Sustainability, Public administration, Decentralized GenerationAbstract
Electricity generation from renewable energy sources, has been gaining market and confidence in the world and, being the subject of discussions on sustainability in global and local forums, in particular in Brazil, with recent regulatory incentives in the distributed generation. Municipal public authorities spend considerable amounts of public financial resources to guarantee electricity for the administration. This study analyzed the technical feasibility for scaling the deployment and operation of photovoltaic generation systems on the roof of buildings and the economic feasibility of investing through own resources and financing to attend the demand for electricity from public administration services and systems located in the city of Itajubá-MG, as a case study. The results demonstrate a need for a considerable initial investment and with a more attractive economic advantage of investment from financing. It is possible to conclude a great opportunity for the municipality's administration to become self-sustainable in energy generation and to reinvest, approximately R$ 1 million per year, in other areas of the municipality with the economic return of the system after 6 years in the worst scenario analyzed.
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