Coping with wind power variability: How plug-in electric vehicles could help

Juha Kiviluoma, Peter Meibom

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    Plug-in electric vehicles could offer flexibility for wind power and an attempt was made to quantify the effect with a power system model Wilmar. Wilmar simulates unit commitment and dispatch using mixed integer programming and includes wind power and load stochasticity as well as a module for plug-in electric vehicles. Forecast errors of wind power increase the need for balancing and ancillary services. The model is able to use the plug-in electric vehicles (PHEVs) to participate in the balancing and ancillary services and decrease the costs of these services. The charging and possible discharging of the vehicles can also be optimized to most beneficial hours within the limits caused by vehicle use. We have calculated the benefits at different PHEV penetration levels. The results indicate that benefits of peak shaving using vehicle to grid are limited due to the rather small size of storage in the batteries even with a large number of vehicles. Benefits can best be seen in the smart charging of the vehicles and in the correction of forecast errors. The marginal benefits of introducing PHEVs capable of smart charging and discharging are high for low numbers of PHEVs in the power system, but declines with higher penetration levels of PHEVs, because the demands for power system reserves and flexibility are limited.
    Original languageEnglish
    Title of host publicationProceedings of the 8th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms
    PublisherEnergynautics GmbH
    Pages336-340
    Publication statusPublished - 2009
    MoE publication typeB3 Non-refereed article in conference proceedings
    Event8th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms - Bremen, Germany
    Duration: 14 Oct 200915 Oct 2009

    Conference

    Conference8th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms
    CountryGermany
    CityBremen
    Period14/10/0915/10/09

    Keywords

    • wind power
    • electgric vehicles

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  • Cite this

    Kiviluoma, J., & Meibom, P. (2009). Coping with wind power variability: How plug-in electric vehicles could help. In Proceedings of the 8th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms (pp. 336-340). Energynautics GmbH.