Electricity price arbitrage in utility-scale PV-plus-battery systems

Q4 Energy
R. Dufo-López, J. Lujano-Rojas, J. Bernal-Agustín, J. S. Artal-Sevil, Á. Bayod-Rújula, Tomás Cortés-Arcos, Javier Carroquino-Oñate, Cristina Escriche Martínez
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引用次数: 0

Abstract

In this paper, we use MHOGA software for the optimization of an AC-coupled utility-scale PV-plus-battery system. Batteries are used for price arbitrage, being charged with the photovoltaic (PV) generation during hours of low electricity price and discharged during hours of high price. The correct estimation of the battery lifetime has great importance in the calculation of the net present value, to do this advanced models for estimating the Li-ion battery lifetime (considering cycle and calendar ageing) are used. With present components costs, considering the Spanish SPOT price of 2021 with an expected increase of 1% annual, the AC coupled utility-scale PV-plusbattery isn’t economically viable comparing to the PV-only system. If electricity hourly price was multiplied by two, in certain cases adding battery to the PV system would be profitable.
公用事业规模的光伏+电池系统中的电价套利
在本文中,我们使用MHOGA软件对一个交流耦合的公用事业规模的光伏+电池系统进行优化。利用电池进行价格套利,在电价低的时段进行光伏发电充电,在电价高的时段进行放电。电池寿命的正确估计在净现值的计算中具有重要意义,为此使用了先进的锂离子电池寿命估计模型(考虑循环和日历老化)。鉴于目前的组件成本,考虑到2021年西班牙现货价格预计每年增长1%,与纯光伏系统相比,交流耦合公用事业规模的光伏+电池在经济上并不可行。如果每小时电价乘以2,在某些情况下,为光伏系统增加电池将是有利可图的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Renewable Energy and Power Quality Journal
Renewable Energy and Power Quality Journal Energy-Energy Engineering and Power Technology
CiteScore
0.70
自引率
0.00%
发文量
147
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