TECHNICAL ECONOMIC STUDY: A Collective Photovoltaic Installation

Abstract

Since the recognition of self-consumption in Spain in 2019, self-consumption photovoltaic installations have experienced significant growth. This fact, together with a rise in energy prices, has allowed the development of both individual and collective distributed photovoltaic generation. Collective installations allow several consumers to benefit from a single photovoltaic installation. The use of dynamic distribution coefficients of the photovoltaic energy among the different consumers for each hour of the period is allowed and can be determined according to the criteria considered most appropriate by the participants. This article makes a technical and economic study of a photovoltaic installation for collective self-consumption of a group of houses located in Tafira - Gran Canaria, with different possibilities of photovoltaic energy distribution coefficients, both fixed and dynamic, to study the profitability of the different energy distribution and optimize the energy distribution, taking into account the different consumption curves and electricity contracts of each of the consumers. Eight cases of energy sharing are studied, the most characteristic and with which the best results are the cases with coefficients based on previous consumptions and current consumptions (in situ).