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The Effect of Market Power on Electricity Storage Utilization: The Case of Pumped Hydro Storage in Germany

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  • Wolf-Peter Schill
  • Claudia Kemfert

Abstract

In this paper, we develop the game-theoretic electricity market model ElStorM that includes the possibility of strategic electricity storage. We apply the model to the German electricity market and analyze different realistic and counterfactual cases of strategic and non-strategic pumped hydro storage utilization by different players. We find that the utilization of storage capacities depends on the operator and its ability to exert market power both regarding storage and conventional generation capacities. The distribution of storage capacities among players also matters. A general finding is that strategic operators tend to under-utilize their storage capacities. This affects generation patterns of conventional technologies and market outcomes. Strategic under-utilization of storage capacities might also diminish their potential for renewable energy integration. Accordingly, economic regulation of existing and future storage capacities may be necessary, depending on policy objectives. We also find that the introduction of electricity storage generally increases overall welfare, while outcomes vary between different cases. Strategic storage utilization decreases consumer rent compared to non-strategic storage utilization. However, this effect is less pronounced if storage capacities are distributed among several players.

Suggested Citation

  • Wolf-Peter Schill & Claudia Kemfert, 2009. "The Effect of Market Power on Electricity Storage Utilization: The Case of Pumped Hydro Storage in Germany," Discussion Papers of DIW Berlin 947, DIW Berlin, German Institute for Economic Research.
  • Handle: RePEc:diw:diwwpp:dp947
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    Cited by:

    1. Michael Pahle, Kai Lessmann, Ottmar Edenhofer, and Nico Bauer, 2013. "Investments in Imperfect Power Markets under Carbon Pricing: A Case Study Based Analysis," The Energy Journal, International Association for Energy Economics, vol. 0(Number 4).
    2. Andreas Schröder & Friedrich Kunz & Jan Meiss & Roman Mendelevitch & Christian von Hirschhausen, 2013. "Current and Prospective Costs of Electricity Generation until 2050," Data Documentation 68, DIW Berlin, German Institute for Economic Research.
    3. Steffen, Bjarne & Weber, Christoph, 2016. "Optimal operation of pumped-hydro storage plants with continuous time-varying power prices," European Journal of Operational Research, Elsevier, vol. 252(1), pages 308-321.
    4. Karsten Neuhoff & Sophia Rüster & Sebastian Schwenen, 2015. "Power Market Design beyond 2020: Time to Revisit Key Elements?," Discussion Papers of DIW Berlin 1456, DIW Berlin, German Institute for Economic Research.
    5. Sousa, Jorge A.M. & Teixeira, Fábio & Faias, Sérgio, 2014. "Impact of a price-maker pumped storage hydro unit on the integration of wind energy in power systems," Energy, Elsevier, vol. 69(C), pages 3-11.
    6. Thao Pham, 2015. "Energiewende and competition in Germany: Diagnosing market power in wholesale electricity market," ECONOMICS AND POLICY OF ENERGY AND THE ENVIRONMENT, FrancoAngeli Editore, vol. 2015(2), pages 29-49.
    7. Kamiński, Jacek, 2014. "A blocked takeover in the Polish power sector: A model-based analysis," Energy Policy, Elsevier, vol. 66(C), pages 42-52.
    8. Wolf-Peter, Schill, 2011. "Electric vehicles in imperfect electricity markets: The case of Germany," Energy Policy, Elsevier, vol. 39(10), pages 6178-6189, October.
    9. Sioshansi, Ramteen, 2014. "When energy storage reduces social welfare," Energy Economics, Elsevier, vol. 41(C), pages 106-116.
    10. repec:eee:rensus:v:81:y:2018:i:p1:p:1049-1086 is not listed on IDEAS
    11. repec:eee:energy:v:140:y:2017:i:p1:p:318-329 is not listed on IDEAS
    12. Geth, F. & Brijs, T. & Kathan, J. & Driesen, J. & Belmans, R., 2015. "An overview of large-scale stationary electricity storage plants in Europe: Current status and new developments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 52(C), pages 1212-1227.
    13. Rintamäki, Tuomas & Siddiqui, Afzal S. & Salo, Ahti, 2016. "How much is enough? Optimal support payments in a renewable-rich power system," Energy, Elsevier, vol. 117(P1), pages 300-313.
    14. Zafirakis, Dimitrios & Chalvatzis, Konstantinos J. & Baiocchi, Giovanni & Daskalakis, Georgios, 2016. "The value of arbitrage for energy storage: Evidence from European electricity markets," Applied Energy, Elsevier, vol. 184(C), pages 971-986.
    15. Anaya, K. & Pollitt, M., 2018. "Storage Business Models: Lessons for Electricity from Natural Gas, Cloud Data and Frozen Food," Cambridge Working Papers in Economics 1810, Faculty of Economics, University of Cambridge.
    16. Schill, Wolf-Peter, 2011. "Electric Vehicles in Imperfect Electricity Markets," EconStor Open Access Articles, ZBW - German National Library of Economics, pages 6178-6189.
    17. Schroeder, Andreas & Traber, Thure, 2012. "The economics of fast charging infrastructure for electric vehicles," Energy Policy, Elsevier, vol. 43(C), pages 136-144.
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    19. Kamiński Jacek, 2014. "Primary energy consumption in the power generation sector and various market structures: a modelling approach," Gospodarka Surowcami Mineralnymi / Mineral Resources Management, De Gruyter Open, vol. 30(4), pages 1-14, December.
    20. Tom Brijs & Frederik Geth & Sauleh Siddiqui & Benjamin F. Hobbs & Ronnie Belmans, 2016. "Price-Based Unit Commitment Electricity Storage Arbitrage with Piecewise Linear Price-Effects," Discussion Papers of DIW Berlin 1567, DIW Berlin, German Institute for Economic Research.

    More about this item

    Keywords

    Electricity market modeling; pumped hydro storage; strategic storage; oligopoly; market power; Germany; ElStorM;

    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, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection

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