Diseño de una planta fotovoltaica conectada a red para disminuir el costo de la planilla eléctrica en la empresa Aromacacao S.A.

Abstract

This research presents the design and evaluation of a grid-connected photovoltaic plant for Aromacacao S.A. The study was conducted using the company's 2025 electricity bills, the characteristics of the existing installation, and the available roof space. During that year, the company recorded a consumption of 120,381.00 kWh. Based on this information, a 79.20 kWp plant was defined, consisting of 110 Jinko Solar 720 W modules and an 80 kW Huawei SUN2000-80K-MGL0 inverter. The selected equipment is compatible with the company's 220 V three-phase network and 125 kVA transformer. The simulation developed in PV*SOL premium 2026 estimated an annual production of 78,420 kWh. Of this energy, 64,603 kWh would be used directly by Aromacacao S.A., covering 53.7% of its annual consumption. The remaining 13,817 kWh would be fed into the CNEL grid. For a reference investment of USD 75,000, annual savings of USD 7,623.15 and a simple payback period of 9.84 years were calculated. The emissions reduction would reach approximately 29,791 kg of CO₂ per year. The results show that the proposal is compatible with the company's infrastructure and that its implementation would reduce energy purchased from the grid and the annual cost of electricity. The financial evaluation, conducted over a 25-year period with a 6% discount rate, resulted in a net present value (NPV) of USD 28,735.12 and an internal rate of return (IRR) of 9.56%. The adjusted simple recovery was estimated at 9.74 years and the discounted recovery at 14.74 years.