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Ensuring Capacity Adequacy in Liberalised Electricity Markets

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  • Nicolas Astier and Xavier Lambin

Abstract

This paper studies wholesale electricity markets where an exogenous price cap is enforced, compromising both short- and long-term incentives. To guarantee capacity adequacy, policy-makers may provide support for generation through a capacity remuneration mechanism (CRM) and/or encourage demand response (DR). Such mechanisms are formalised within a common simple analytical framework, clarifying how these mechanisms relate to each other. We then divide them into two categories, depending on whether their implementation requires transactions to be made based explicitly on spot prices higher than the price cap. While mechanisms that keep implicit these high marginal costs are likely to be preferred from a political perspective, they also appear to be less efficient. If they are to be implemented nonetheless, we suggest that the price cap should be set higher than the marginal cost of the most expensive plant, and highlight that challenges for demand-response integration in CRMs remain.

Suggested Citation

  • Nicolas Astier and Xavier Lambin, 2019. "Ensuring Capacity Adequacy in Liberalised Electricity Markets," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3).
  • Handle: RePEc:aen:journl:ej40-3-astier
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    Citations

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    Cited by:

    1. Pär Holmberg & Thomas Tangerås, 2021. "Strategic Reserves versus Market-wide Capacity Mechanisms," Working Papers EPRG2109, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    2. Lambin, Xavier, 2020. "Integration of Demand Response in Electricity Market Capacity Mechanisms," Utilities Policy, Elsevier, vol. 64(C).
    3. Astier, Nicolas & Ovaere, Marten, 2022. "Reliability standards and generation adequacy assessments for interconnected electricity systems," Energy Policy, Elsevier, vol. 168(C).
    4. Csereklyei, Zsuzsanna & Kallies, Anne & Diaz Valdivia, Andres, 2021. "The status of and opportunities for utility-scale battery storage in Australia: A regulatory and market perspective," Utilities Policy, Elsevier, vol. 73(C).
    5. Csereklyei, Zsuzsanna & Kallies, Anne, 2022. "A legal-economic framework of electricity markets: Assessing Australia’s transition," MPRA Paper 114191, University Library of Munich, Germany.
    6. Yasir Alsaedi & Gurudeo Anand Tularam & Victor Wong, 2020. "Impact of Solar and Wind Prices on the Integrated Global Electricity Spot and Options Markets: A Time Series Analysis," International Journal of Energy Economics and Policy, Econjournals, vol. 10(2), pages 337-353.

    More about this item

    JEL classification:

    • F0 - International Economics - - General

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