Technical and Economic Analysis of Battery Storage for Residential Solar Photovoltaic Systems in the Brazilian Regulatory Context

Lucas Deotti, Wanessa Guedes, Bruno Dias and Tiago Soares
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Lucas Deotti: Department of Electrical Energy, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36036-330, Brazil
Wanessa Guedes: Department of Electrical Energy, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36036-330, Brazil
Bruno Dias: Department of Electrical Energy, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36036-330, Brazil
Tiago Soares: Centre for Power and Energy Systems, Institute for Systems and Computer Engineering, Technology and Science (INESC-TEC), 4200-465 Porto, Portugal

Energies, 2020, vol. 13, issue 24, 1-30

Abstract: This paper presents a comprehensive study of the technical and economic benefits that a typical residential prosumer may experience when investing in a solar photovoltaic (PV) system with a battery energy storage system (BESS). To this end, a home energy management system has been designed to simulate the prosumer’s daily operation, considering a novel method for calculating battery degradation while minimizing its operating costs. In order to contribute to the regulatory review process of the distributed generation underway in Brazil, a set of PV+BESS configurations has been assessed under the current and future regulatory scenarios proposed for discussion by the Brazilian regulatory agency. Although the results demonstrate that the prosumer’s self-consumption rate may increase up to 14% with the BESS coupling in the PV system, the investment proved to be economically unattractive in the current regulatory scenario and practically unfeasible in any of the proposed future scenarios. To make PV+BESS systems economically feasible, some business models are proposed and discussed, and for example, provide subsidies for policymakers, financial agents, and battery manufacturers. A sensitivity analysis for each business model showing its economic feasibility spectrum is provided to assist the different sector players, especially the consumers, in their decision-making process.

Keywords: distributed energy resources; energy management system; linear programming; photovoltaic system; battery energy storage system; net-metering; self-consumption; smart grid (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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