Diseño de Microred Conectada a la Red Eléctrica para Mejorar la Confiabilidad del Suministro de Energía en el Edificio B de la Universidad Politécnica Salesiana Sede Guayaquil

Abstract

The study focused on designing a microgrid interconnected with the public power grid to optimize stability and ensure continuous energy supply in Building B of the Salesian Polytechnic University, Guayaquil campus. The methodology included data collection and consumption analysis, simulations using HOMER Pro, and assessments of technical and economic feasibility. The analysis revealed challenges in the stability of the electrical service, with consumption peaks exceeding 65.45 kW and a monthly average of 25,704 kWh. To mitigate these issues, the installation of a microgrid was proposed, combining 40 kW of photovoltaic solar panels, a 125 kWh lithium-ion battery storage system, and a 50 kW backup generator. The results indicated that implementing this microgrid would reduce power supply interruptions by approximately 80% and generate a 40% savings in operating costs. The Levelized Cost of Energy (LCOE) was estimated at $0.0900 per kWh, translating to an approximate annual savings of $4,007 and a Net Present Value (NPV) of $82,320. The system's implementation will contribute to reducing 15 tons of CO₂ per year, promoting a more sustainable energy model. Finally, the estimated initial investment was $101,369, with a payback period ranging between 7 and 10 years, depending on energy cost fluctuations and potential government incentives.