Analysis of a photovoltaic self-consumption facility with different net metering schemes

 Author(s):A. Ayala-Gilardóna, L. Mora-Lópezb, M. Sidrach-de-Cardonaa
aDpto. Física Aplicada II. E.Ingenierías Industriales. c/Doctor Ortiz Ramos, Campus Teatinos, Universidad de Málaga, Spain
bDpto. Lenguajes y Ciencias de la Computación. ETSI Informática. Campus de Teatinos. Universidad de Málaga. 29071, Spain
International Journal of Smart Grid and Clean Energy, vol. 6, no. 1, January 2017: pp. 47-53
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.6.1.47-53

Abstract: A methodology for analyzing the performance of a photovoltaic self-consumption facility is proposed. It is based on the possibility of doing net metering for different time intervals. The used data were recorded for a photovoltaic facility installed in a detached house in Malaga (Spain). The peak power of the installation is 3kW. The monthly values of consumption and photovoltaic production and the energy balances of the system for 2015 have been estimated. The net metering schemes checked range from instantaneous to annual. In the firs case, no compensation between energy injected into the grid and the energy imported from the grid is allowed, while in the last case (annual values) the incentive scheme allows compensating generation and consumption for a year. The obtained results show that depending on the net-metering scheme the self-consumption ranges from 34% to 71% while the self-sufficiency ranges from 49% to 100%. In all cases, the annual energy fed into the grid is greater that the imported from the grid.

Keywords: Self-consumption; photovoltaic; net metering

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