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Ex post monitoring of market power in hydro dominated electricity markets

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  • Sandsmark, Maria
  • Tennbakk, Berit

Abstract

The paper presents a proposed market monitoring procedure that takes into account the special features of an electricity market dominated by hydropower. Specifically, we present a method to assess water values and a set of indicators that can be used to screen the market for suspicious price formation. We then use the suggested monitoring procedure to evaluate actual price formation in the Nordic Electricity Market during the (hydrological) year 2002/2003 when precipitation failed and spot prices at the electricity exchange Nord Pool hit an all-time high.

Suggested Citation

  • Sandsmark, Maria & Tennbakk, Berit, 2010. "Ex post monitoring of market power in hydro dominated electricity markets," Energy Policy, Elsevier, vol. 38(3), pages 1500-1509, March.
    • Handle: RePEc:eee:enepol:v:38:y:2010:i:3:p:1500-1509
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    2. Ciarreta, Aitor & Nasirov, Shahriyar & Silva, Carlos, 2016. "The development of market power in the Spanish power generation sector: Perspectives after market liberalization," Energy Policy, Elsevier, vol. 96(C), pages 700-710.
    3. Fleten, Stein-Erik & Hagen, Liv Aune & Nygård, Maria Tandberg & Smith-Sivertsen, Ragnhild & Sollie, Johan M., 2015. "The overnight risk premium in electricity forward contracts," Energy Economics, Elsevier, vol. 49(C), pages 293-300.
    4. Jahns, Christopher & Podewski, Caroline & Weber, Christoph, 2020. "Supply curves for hydro reservoirs – Estimation and usage in large-scale electricity market models," Energy Economics, Elsevier, vol. 87(C).
    5. Avesani, Diego & Zanfei, Ariele & Di Marco, Nicola & Galletti, Andrea & Ravazzolo, Francesco & Righetti, Maurizio & Majone, Bruno, 2022. "Short-term hydropower optimization driven by innovative time-adapting econometric model," Applied Energy, Elsevier, vol. 310(C).
    6. Zakeri, Behnam & Virasjoki, Vilma & Syri, Sanna & Connolly, David & Mathiesen, Brian V. & Welsch, Manuel, 2016. "Impact of Germany's energy transition on the Nordic power market – A market-based multi-region energy system model," Energy, Elsevier, vol. 115(P3), pages 1640-1662.
    7. Kamiński, Jacek, 2012. "The development of market power in the Polish power generation sector: A 10-year perspective," Energy Policy, Elsevier, vol. 42(C), pages 136-147.
    8. Christopher Jahns & Caroline Podewski & Christoph Weber, "undated". "Supply Curves for Hydro Reservoirs - Estimation and Usage in Large-Scale Electricity Market Models," EWL Working Papers 1901, University of Duisburg-Essen, Chair for Management Science and Energy Economics.
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    10. Miguel Pérez de Arce and Enzo Sauma, 2016. "Comparison of Incentive Policies for Renewable Energy in an Oligopolistic Market with Price-Responsive Demand," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3).

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