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Abuse of dominance and antitrust enforcement in the German electricity market

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  • Duso, Tomaso
  • Szücs, Florian
  • Böckers, Veit

Abstract

In 2008, the European Commission investigated E.ON, a large and vertically integrated electricity company, for the alleged abuse of a joint dominant position by strategically withholding generation capacity in the German wholesale electricity market. The case was settled after E.ON agreed to divest 5 GW generation capacity as well as its extra-high voltage network. We analyze the effect of these divestitures on wholesale electricity prices. Our identification strategy is based on the observation that energy suppliers have more market power during peak periods when demand is high. Therefore, a decrease in market power should lead to convergence between peak and off-peak prices, after controlling for different demand and supply conditions as well as the change in generation mix due to the expansion of renewable technologies. Using daily electricity prices for the 2006–2012 period, we find economically and statistically significant convergence effects after the settlement of the case. In a richer specification, we show that the price reductions appear to be mostly due to the divestiture of gas and coal plants, which is consistent with merit-order considerations. Additional cross-country analyses support our results.

Suggested Citation

  • Duso, Tomaso & Szücs, Florian & Böckers, Veit, 2020. "Abuse of dominance and antitrust enforcement in the German electricity market," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 92, pages 1-40.
    • Handle: RePEc:zbw:espost:266563
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    Cited by:

    1. Jan Niklas Buescher & Daria Gottwald & Florian Momm & Alexander Zureck, 2022. "Impact of the COVID-19 Pandemic Crisis on the Efficiency of European Intraday Electricity Markets," Energies, MDPI, vol. 15(10), pages 1-21, May.
    2. Duso, Tomaso & Seldeslachts, Jo & Szucs, Florian, 2019. "The Impact of Competition Policy Enforcement on the Functioning of EU Energy Markets," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 40(01), pages 97-120.
    3. Liu, Chen & Shao, Zhen & Jiao, Jianling & Yang, Shanlin, 2024. "How connected is withholding capacity to electricity, fossil fuel and carbon markets? Perspectives from a high renewable energy consumption economy," Energy Policy, Elsevier, vol. 185(C).
    4. Sirin, Selahattin Murat & Uz, Dilek & Sevindik, Irem, 2022. "How do variable renewable energy technologies affect firm-level day-ahead output decisions: Evidence from the Turkish wholesale electricity market," Energy Economics, Elsevier, vol. 112(C).
    5. M. Ángeles López‐Cabarcos & Helena Santos‐Rodrigues & Lara Quiñoá‐Piñeiro & Juan Piñeiro‐Chousa, 2023. "How to explain stock returns of utility companies from an environmental, social and corporate governance perspective," Corporate Social Responsibility and Environmental Management, John Wiley & Sons, vol. 30(5), pages 2278-2291, September.
    6. Sugimoto, Kota, 2021. "Ownership versus legal unbundling of electricity transmission network: Evidence from renewable energy investment in Germany," Energy Economics, Elsevier, vol. 99(C).

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    More about this item

    Keywords

    Electricity; Wholesale prices; EU Commission; Abuse of dominance; ex post evaluation; E.on;
    All these keywords.

    JEL classification:

    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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