Reduction of electricity cost in public administration through a distributed generation strategy

Abstract

The use of distributed generation as an alternative to reduce energy costs in the city hall of Vitória, capital of state of Espirito Santo in Brazil, is proposed in this paper. Photovoltaic solar energy was considered and the system sizing was carried out based on the total cost of eletricity in 2016 (available at the City’s Transparency Website), resulting in a system with a total power of 78 MW. The financing scenarios were analyzed for acquisition of the system scaled with a horizon of 25 years. The results of the economic-financial analysis indicate that the investment is advantageous for the municipality and can bring great returns to the society