Resumo:
Renewable energy sources have been widely used around the world as an alternative for generating clean and sustainable energy. Among them, solar photovoltaic energy stands out as one of the most promising. However, the intermittency of this energy source poses a significant challenge, which can be mitigated through the use of energy storage systems. The proposed study in this thesis aims to develop an optimization program to calculate the ideal depth of discharge for the batteries in the storage system, which will be implemented in the Padre Furusawa Solar Plant. Based on non-linear and non-integer optimization, the program seeks to maximize the Net Present Value (NPV) of the project, considering the battery's lifespan and its financial impact on the investment. The results obtained with the optimization system validate the effectiveness of the proposed method, identifying an optimal depth of discharge of 96.58%, resulting in an NPV of R$527,018.56 and an Internal Rate of Return (IRR) of 13%. The adopted strategy showed significant improvements in the performance and profitability of the storage system, confirming the importance of optimizing operational parameters for photovoltaic solar projects. With the implementation of the optimized depth of discharge, there was a 4.67% gain in NPV, reinforcing the feasibility and positive impact of the proposed approach.
