Evaluation of residential power supply by photovoltaics and electric vehicles

Takuya Higashitani; Takashi Ikegami; Akane Uemichi; Atsushi Akisawa

doi:10.1016/j.renene.2021.06.097

Evaluation of residential power supply by photovoltaics and electric vehicles

Takuya Higashitani, Takashi Ikegami, Akane Uemichi, Atsushi Akisawa^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Electric vehicles (EVs) and vehicle-to-home (V2H) technologies are expected to be used as domestic electricity storage systems, thereby promoting the self-consumption of photovoltaic (PV) power. The purpose of this study was to evaluate the profitability of V2H installation, the optimal facility configuration and the energy performance of V2H, while considering a diversity of household types and storage facility options. We optimized the facilities and operation strategy of a residential energy system under many scenarios with different electricity demand profiles, automobile usage patterns and available areas for PV installation. The results showed that a V2H system should generally be installed instead of a stationary battery (SB), but combining a V2H system with a SB is more economical for households with long EV absence times. Additionally, V2H is profitable for households with short EV absence times, large available areas for PV installation and high electricity demand. Furthermore, V2H exhibits superior energy independence and energy-saving effects for households whose annual PV generation exceeds the yearly household electricity demand.

Original language	English
Pages (from-to)	745-756
Number of pages	12
Journal	Renewable Energy
Volume	178
DOIs	https://doi.org/10.1016/j.renene.2021.06.097
Publication status	Published - 2021 Nov
Externally published	Yes

Keywords

Electric vehicle
Optimization
Photovoltaics
Residential energy system
Vehicle-to-home

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.renene.2021.06.097

Cite this

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title = "Evaluation of residential power supply by photovoltaics and electric vehicles",

abstract = "Electric vehicles (EVs) and vehicle-to-home (V2H) technologies are expected to be used as domestic electricity storage systems, thereby promoting the self-consumption of photovoltaic (PV) power. The purpose of this study was to evaluate the profitability of V2H installation, the optimal facility configuration and the energy performance of V2H, while considering a diversity of household types and storage facility options. We optimized the facilities and operation strategy of a residential energy system under many scenarios with different electricity demand profiles, automobile usage patterns and available areas for PV installation. The results showed that a V2H system should generally be installed instead of a stationary battery (SB), but combining a V2H system with a SB is more economical for households with long EV absence times. Additionally, V2H is profitable for households with short EV absence times, large available areas for PV installation and high electricity demand. Furthermore, V2H exhibits superior energy independence and energy-saving effects for households whose annual PV generation exceeds the yearly household electricity demand.",

keywords = "Electric vehicle, Optimization, Photovoltaics, Residential energy system, Vehicle-to-home",

author = "Takuya Higashitani and Takashi Ikegami and Akane Uemichi and Atsushi Akisawa",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = nov,

doi = "10.1016/j.renene.2021.06.097",

language = "English",

volume = "178",

pages = "745--756",

journal = "Renewable Energy",

issn = "0960-1481",

publisher = "Elsevier BV",

}

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T1 - Evaluation of residential power supply by photovoltaics and electric vehicles

AU - Higashitani, Takuya

AU - Ikegami, Takashi

AU - Uemichi, Akane

AU - Akisawa, Atsushi

PY - 2021/11

Y1 - 2021/11

N2 - Electric vehicles (EVs) and vehicle-to-home (V2H) technologies are expected to be used as domestic electricity storage systems, thereby promoting the self-consumption of photovoltaic (PV) power. The purpose of this study was to evaluate the profitability of V2H installation, the optimal facility configuration and the energy performance of V2H, while considering a diversity of household types and storage facility options. We optimized the facilities and operation strategy of a residential energy system under many scenarios with different electricity demand profiles, automobile usage patterns and available areas for PV installation. The results showed that a V2H system should generally be installed instead of a stationary battery (SB), but combining a V2H system with a SB is more economical for households with long EV absence times. Additionally, V2H is profitable for households with short EV absence times, large available areas for PV installation and high electricity demand. Furthermore, V2H exhibits superior energy independence and energy-saving effects for households whose annual PV generation exceeds the yearly household electricity demand.

AB - Electric vehicles (EVs) and vehicle-to-home (V2H) technologies are expected to be used as domestic electricity storage systems, thereby promoting the self-consumption of photovoltaic (PV) power. The purpose of this study was to evaluate the profitability of V2H installation, the optimal facility configuration and the energy performance of V2H, while considering a diversity of household types and storage facility options. We optimized the facilities and operation strategy of a residential energy system under many scenarios with different electricity demand profiles, automobile usage patterns and available areas for PV installation. The results showed that a V2H system should generally be installed instead of a stationary battery (SB), but combining a V2H system with a SB is more economical for households with long EV absence times. Additionally, V2H is profitable for households with short EV absence times, large available areas for PV installation and high electricity demand. Furthermore, V2H exhibits superior energy independence and energy-saving effects for households whose annual PV generation exceeds the yearly household electricity demand.

KW - Electric vehicle

KW - Optimization

KW - Photovoltaics

KW - Residential energy system

KW - Vehicle-to-home

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VL - 178

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EP - 756

JO - Renewable Energy

JF - Renewable Energy

ER -

Evaluation of residential power supply by photovoltaics and electric vehicles

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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