Electric Vehicles in Imperfect Electricity Markets: A German Case Study
AbstractWe analyze the impacts of a hypothetical fleet of plug-in electric vehicles on the imperfectly competitive German electricity market with a game-theoretic model. Electric vehicles bring both additional demand and additional storage capacity to the market. We determine their effects on prices, welfare, and electricity generation for various cases with different players being in charge of vehicle operations. We find that vehicle loading increases generator profits, but decreases consumer surplus. If excess vehicle batteries can be used for storage, welfare results are reversed: generating firms suffer from the price-smoothing effect of additional storage, whereas consumers benefit despite increasing overall demand. Results however depend on the player being in charge of storage operations, and on battery degradation costs. Strategic players tend to underutilize the storage capacity of the vehicle fleet, which may have negative welfare implications. In contrast, we find a small market power mitigating effect of electric vehicle recharging on oligopolistic generators. Overall, electric vehicles are unlikely to be a relevant source of market power in Germany.
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Bibliographic InfoPaper provided by DIW Berlin, German Institute for Economic Research in its series Discussion Papers of DIW Berlin with number 1084.
Length: 28 p.
Date of creation: 2010
Date of revision:
Electric Vehicles; Vehicle-to-Grid; Arbitrage; Electric Power Markets; Market power;
Find related papers by JEL classification:
- Q40 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - General
- Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
- D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
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- GÃ¶ransson, Lisa & Karlsson, Sten & Johnsson, Filip, 2010. "Integration of plug-in hybrid electric vehicles in a regional wind-thermal power system," Energy Policy, Elsevier, Elsevier, vol. 38(10), pages 5482-5492, October.
- Ali HortaÃ§su & Steven L. Puller, 2008. "Understanding strategic bidding in multi-unit auctions: a case study of the Texas electricity spot market," RAND Journal of Economics, RAND Corporation, vol. 39(1), pages 86-114.
- Birgit Aigner-Walder & Thomas DÃ¶ring, 2012. "Zukunftsperspektiven der ElektromobilitÃ¤t - Treibende Faktoren und Hemmnisse in Ã¶konomischer Sicht," Wirtschaft und Gesellschaft - WuG, Kammer fÃ¼r Arbeiter und Angestellte fÃ¼r Wien, Abteilung Wirtschaftswissenschaft und Statistik, vol. 38(1), pages 103-132.
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