Countermeasure for surplus electricity of PV using replacement battery of EVs

Masaaki Takagi, Yumiko Iwafune, Hiromi Yamamoto, Kenji Yamaji, Kunihiko Okano, Ryouji Hiwatari, Tomhoiko Ikeya

研究成果: Article査読

2 被引用数 (Scopus)


In the power sector, the national government has set the goal that the introduction of PV reaches 53 million kW by 2030. However, large-scale introduction of PV will cause several problems in power systems such as surplus electricity. We need large capacity of pumped storages or batteries for the surplus electricity, but the construction costs of these plants are very high. On the other hand, in the transport sector, Electric Vehicle (EV) is being developed as an environmentally friendly vehicle. To promote the diffusion of EV, it is necessary to build infrastructures that can charge EV in a short time; a battery switch station is one of the solutions to this problem. At a station, the automated switch platform will replace the depleted battery with a fully-charged battery. The depleted battery is placed in a storage room and recharged to be available to other drivers. In this study, we propose the use of station's battery as a countermeasure for surplus electricity of PV and evaluate the economic value of the proposed system. We assumed that 53 million kW of PV is introduced in the nationwide power system and considered two countermeasures for surplus electricity: (1) Pumped storage; (2) Battery of station. The difference in total annual cost between Pumped case and Battery case results in 792.6 billion yen. Hence, if a utility leases the batteries from stations fewer than 792.6 billion yen the utility will have the cost advantage in Battery case.

ジャーナルIEEJ Transactions on Power and Energy
出版ステータスPublished - 2010

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 電子工学および電気工学


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