Battery prices and capacity sensitivity: Electric drive vehicles

Nina Juul

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The increase in fluctuating power production requires an increase in flexibility in the system as well. Flexibility can be found in generation technologies with fast response times or in storage options. In the transport sector, the proportion of electric drive vehicles is expected to increase over the next decade or two. These vehicles can provide some of the flexibility needed in the power system, in terms of both flexible demand and electricity storage. However, what are the batteries worth to the power system? And does the value depend on battery capacity? This article presents an analysis of the integrated power and transport system, focusing on the sensitivity of the power system configuration according to battery capacity and price of the electric drive vehicle. The value of different battery capacities is estimated, given that the batteries are used for both driving and storage. Likewise, the prices at which the electric drive vehicles become of interest to the power system are found. Smart charge, including the opportunity to discharge (vehicle-to-grid) is used in all scenarios. Analyses show that the marginal benefits decrease the larger the battery. For very high battery prices, large batteries imply that diesel vehicles are preferable to electric drive vehicles.
    Original languageEnglish
    JournalEnergy
    Volume47
    Issue number1
    Pages (from-to)403-410
    ISSN0360-5442
    DOIs
    Publication statusPublished - 2012
    EventAsia Pacific Forum on Renewable Energy 2011 (AFORE 2011) - Pusan, Korea, Republic of
    Duration: 16 Nov 201118 Nov 2011

    Conference

    ConferenceAsia Pacific Forum on Renewable Energy 2011 (AFORE 2011)
    CountryKorea, Republic of
    CityPusan
    Period16/11/201118/11/2011

    Keywords

    • Vehicle-to-grid (V2G)
    • Electric vehicles
    • Power system
    • Renewable energy
    • Vehicle batteries

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