Instalações Elétricas em Baixa Tensão e Projeto Fotovoltaico para Hotel

Abstract

This work presents the design and feasibility analysis of a low-voltage electrical system integrated with a photovoltaic system, focusing on energy efficiency and sustainability. The project considered the solar irradiation in the region and factors affecting system performance, such as the annual degradation of solar panels and the replacement of essential components, such as inverters, throughout their lifespan. The economic analysis demonstrated that, despite the gradual loss of efficiency of photovoltaic modules, the continuous increase in electricity tariffs ensures the attractiveness of the investment, providing significant long-term savings. In addition to the financial benefits, the system contributes to reducing CO2 emissions, emphasizing the importance of renewable energy in the context of the energy transition. The design of the photovoltaic system and electrical infrastructure was carried out based on the customer’s consumption profile and needs, ensuring resource optimization and technical feasibility. The integration of the solar system with the grid maximizes the use of the generated energy, minimizing waste and reducing reliance on the utility company. To ensure greater operational security and autonomy, a battery bank was implemented, sized to supply the energy demand of the site for up to 3 hours in case of a failure in the utility supply. This energy reserve ensures continuous operations without interruptions, avoiding losses and ensuring greater supply stability. Thus, the integration of a well-designed electrical project, a photovoltaic system sized according to the installation’s particularities, and a strategically sized battery bank ensures energy autonomy, financial predictability, and greater electrical resilience, making it a sustainable and efficient solution for the consumer.