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Renewable sources, technology mix, and competiton in liberalized electricity markets: the case of Spain

Author

Listed:
  • Nikolaos Georgantzis

    () (Universitat Jaume I)

  • Aitor Ciarreta

    (Universidad de Alicante)

  • Carlos Gutiérrez-Hita

    (Universidad de Alicante)

Abstract

Este artículo trata el problema de cómo la competencia oligopolística es afectada por el desarrollo de las tecnologías que utilizan energías renovables dentro del marco de reducción de emisiones de CO2 y seguridad en el mercado eléctrico. En un modelo oligopolístico donde las empresas poseen plantas que utilizan recursos tanto renovables como no renovables, mostramos que los precios en el mercado mayorista decrecen a medida que las tecnologías que utilizan recursos renovables incrementan su eficiencia, hecho que también depende de la subvención fijada por el regulador. Sin embargo, encontramos que un subsidio excesivo puede distorsionar la competencia cuando la madurez tecnológica de los recursos renovables es lo suficientemente alta comparada con el coste de los recursos no renovables. Por último, contrastamos las predicciones del modelo utilizando datos del mercado eléctrico español. The paper addresses the question of how oligopolistic competition is affected by the development of renewable source technologies within the new framework of electricity supply security and reduction of emissions of CO2. In an oligopoly model where firms own renewable as well as non-renewable source technologies, we show that wholesale prices tend to decline the larger the efficiency achieved by renewable technologies depending also on the feed-in-tariff fixed by regulators. We found however that a high subsidy can distort competition when technical maturity of renewables is large as compared with the costs incurred by fossil sources. Finally, we test the predictions of the model using data from the Spanish electricity market.

Suggested Citation

  • Nikolaos Georgantzis & Aitor Ciarreta & Carlos Gutiérrez-Hita, 2010. "Renewable sources, technology mix, and competiton in liberalized electricity markets: the case of Spain," Working Papers. Serie EC 2010-06, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie).
  • Handle: RePEc:ivi:wpasec:2010-06
    as

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    File URL: http://www.ivie.es/downloads/docs/wpasec/wpasec-2010-06.pdf
    File Function: Fisrt version / Primera version, 2010
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    References listed on IDEAS

    as
    1. Maria Teresa Balaguer-Coll & Diego Prior & Emili Tortosa-Ausina, 2010. "Devolution dynamics of Spanish local government," Environment and Planning A, Pion Ltd, London, vol. 42(6), pages 1476-1495, June.
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    3. David M. Newbery, 2002. "Privatization, Restructuring, and Regulation of Network Utilities," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262640481, January.
    4. Green, Richard J & Newbery, David M, 1992. "Competition in the British Electricity Spot Market," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 929-953, October.
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    6. Palmer, Karen & Burtraw, Dallas, 2005. "Cost-effectiveness of renewable electricity policies," Energy Economics, Elsevier, vol. 27(6), pages 873-894, November.
    7. Klemperer, Paul D & Meyer, Margaret A, 1989. "Supply Function Equilibria in Oligopoly under Uncertainty," Econometrica, Econometric Society, vol. 57(6), pages 1243-1277, November.
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    More about this item

    Keywords

    electricity technology mix; renewable energy sources; technical maturity; feed-in tariffs. mix tecnológico eléctrico; recursos energéticos renovables; madurez tecnológica; subvenciones;

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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