Estudio de factibilidad de un sistema solar fotovoltaico para las tiendas Tuti Ttde S.A.

Abstract

The growing energy demand of Tuti TTDE S.A. stores—many of which now exceed the 20 kW limit allowed by CNEL EP for low-voltage connections—has made it necessary to develop viable technical solutions without altering the existing electrical infrastructure. This study proposes a hybrid system combining photovoltaic solar generation and lithium-ion battery storage (LiFePO₄) to reduce peak demand to 20 kW and avoid the need to install private transformers. An in-depth analysis of energy consumption profiles was conducted to design a system capable of supplying 8 kW during peak hours, using batteries charged at night from the grid. To offset conversion and storage losses, solar panels were integrated and dimensioned using Meteonorm software. A hybrid inverter was selected for its ability to manage various power sources and operate within programmable time frames, ensuring reliable supply. The project also includes a cost comparison against the alternative of transformer room installation, demonstrating that the proposed hybrid system is a technically and economically viable solution in the medium term, with potential for replication in other stores facing similar infrastructure constraints.