Optimal Design Model for a Residential PV Storage System an Application to the Spanish Case

Juan Antonio Ballesteros-Gallardo, Angel Arcos-Vargas and Fernando Núñez Hernández
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Juan Antonio Ballesteros-Gallardo: Industrial Engineering and Management Science, University of Seville, 41092 Seville, Spain
Angel Arcos-Vargas: Industrial Engineering and Management Science, University of Seville, 41092 Seville, Spain

Sustainability, 2021, vol. 13, issue 2, 1-26

Abstract: Self-consumption of photovoltaic energy is being promoted as an effective way for energy consumption in residential households. The European Directive 944/2019 promotes the use of green energy and battery energy storage systems (BESS) for self-consumption and, in Spain, the 244/2019 Royal Decree of the Spanish electrical regulatory framework allows the self-consumption of energy with a photovoltaic (PV) facility for residential use, as well as the injection of the surplus energy into the grid for which compensation will be received. At the same time, new developments in PV and BESS technologies reduce the costs of facilities, a fact that can increase the profitability of self-consumption through PV energy. This study evaluates the profitability of a household PV facility with BESS using a model based on real market prices, hourly data from user smart meters, and their own location; especially, the model gives the best configuration of PV panels power and BESS capacity. The financial indicators taken as reference for the results and conclusions are the Net Present Value (NPV), Internal Rate of Return (IRR), and Investment Return (IR). Our method examines also the effect of the BESS and PV panel costs on the profitability of the facility. Unlike other studies, our model is based on actual (not simulated) demand and price data, and it can be easily extended to other locations and market prices.

Keywords: renewable energy; residential PV facilities; storage systems; self-consumption; financial analysis (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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