Determinación del costo de excedentes de energía fotovoltaica en sistemas de autoconsumo mediante el uso del método Paridad de Costo

Abstract

Surplus energy produced by selfconsumption systems that is not used can be injected into the electric grid for later use. The sale of surplus energy can encourage the development and incorporation of more selfconsumption systems due to the economic benefits of implementing this type of system. Using the cost parity method, the sale price of surplus energy produced by self-consumption systems from photovoltaic energy was determined, comparing the values of the surplus energy and the country's electricity tariff, verifying if there is an economic profitability. With the mentioned method together with profitability indicators such as Net Present Value, Investment Recovery Period and Internal Rate of Return, it was obtained that implementing a photovoltaic system for self-consumption is beneficial for users depending on their consumption. The existence of cost parity was proven in several case studies, where together with the indicators, faster investment recoveries were observed, which has allowed validating the profitability in each case study in an effective way