Diseño de sistemas fotovoltaicos con almacenamiento de energía eléctrica para sistemas agrícolas aislados.

Abstract

This work sought to provide a solution to the lack of regulations or conceptual guides for the dimensioning of photovoltaic projects with energy storage for the Ecuadorian agricultural industry, which has meant that the installations have no technical or economic reference. When the energy profile was examined, it was discovered that residential and industrial loads (irrigation pumps) are fed by generation to diesel. For this purpose, a methodology has been developed to satisfy energy needs based on technical, economic, and environmental parameters. An agricultural industry in Santo Domingo de los Tsáchilas was taken as a base case, on which the conceptual design of the photovoltaic system was executed; this consists of three subsystems: one 2.43 [kWp] with 500 [Ah] storage for the residence, one second 400 [WP] with 15 [Ah] storage for a centrifugal solar electric pump; and a 1.2 [kW] system for a submersible solar electric pump. The financial technical analysis was carried out, which determined its economic viability; in addition, it reduced 2821 [kg CO2 - year]. In this way, a conceptual guide was created to size isolated photovoltaic systems for the agricultural sector, encouraging the change of the energy matrix and the care of nature.