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How do changes in settlement periods affect wholesale market prices? Evidence from Australia's National Electricity Market

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  • Csereklyei, Zsuzsanna
  • Khezr, Peyman

Abstract

We examine whether a major change in wholesale electricity market price settlement rules in Australia's National Electricity Market (NEM) has resulted in lower electricity prices, potentially benefiting consumers. In October 2021, the NEM transitioned from a 30-min average to a 5-min single period settlement price. We develop a theoretical framework for multiple firms spanning two periods, comparing averaged versus single-period bidding systems. Our findings indicate that strategic bidding behaviour often leads to elevated clearing prices under averaged settlement rules. We support our theoretical findings by empirically analysing the short-term effects of the rule change in the NEM from 1 October 2021 to 31 December 2021. Our analysis reveals that electricity prices were up to 4.9% lower than they would have been without the rule adjustment.

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  • Csereklyei, Zsuzsanna & Khezr, Peyman, 2024. "How do changes in settlement periods affect wholesale market prices? Evidence from Australia's National Electricity Market," Energy Economics, Elsevier, vol. 132(C).
    • Handle: RePEc:eee:eneeco:v:132:y:2024:i:c:s0140988324001336
    DOI: 10.1016/j.eneco.2024.107425
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    as
    1. Brown, Stephen J. & Warner, Jerold B., 1985. "Using daily stock returns : The case of event studies," Journal of Financial Economics, Elsevier, vol. 14(1), pages 3-31, March.
    2. Natalia Fabra & Nils‐Henrik Fehr & David Harbord, 2006. "Designing electricity auctions," RAND Journal of Economics, RAND Corporation, vol. 37(1), pages 23-46, March.
    3. Natalia Fabra & Nils-Henrik M. von der Fehr & David Harbord, 2006. "Designing Electricity Auctions," RAND Journal of Economics, The RAND Corporation, vol. 37(1), pages 23-46, Spring.
    4. Peyman Khezr & Anne Cumpston, 2022. "A review of multiunit auctions with homogeneous goods," Journal of Economic Surveys, Wiley Blackwell, vol. 36(4), pages 1225-1247, September.
    5. Ricardo Gonçalves & Flávio Menezes, 2022. "Market‐wide impact of renewables on electricity prices in Australia," The Economic Record, The Economic Society of Australia, vol. 98(320), pages 1-21, March.
    6. Borenstein, Severin, 2000. "Understanding Competitive Pricing and Market Power in Wholesale Electricity Markets," The Electricity Journal, Elsevier, vol. 13(6), pages 49-57, July.
    7. Bell, William Paul & Wild, Phillip & Foster, John & Hewson, Michael, 2017. "Revitalising the wind power induced merit order effect to reduce wholesale and retail electricity prices in Australia," Energy Economics, Elsevier, vol. 67(C), pages 224-241.
    8. Cludius, Johanna & Forrest, Sam & MacGill, Iain, 2014. "Distributional effects of the Australian Renewable Energy Target (RET) through wholesale and retail electricity price impacts," Energy Policy, Elsevier, vol. 71(C), pages 40-51.
    9. McConnell, Dylan & Hearps, Patrick & Eales, Dominic & Sandiford, Mike & Dunn, Rebecca & Wright, Matthew & Bateman, Lachlan, 2013. "Retrospective modeling of the merit-order effect on wholesale electricity prices from distributed photovoltaic generation in the Australian National Electricity Market," Energy Policy, Elsevier, vol. 58(C), pages 17-27.
    10. Martins, António Miguel & Cró, Susana, 2022. "Airline stock markets reaction to the COVID-19 outbreak and vaccines: An event study," Journal of Air Transport Management, Elsevier, vol. 105(C).
    11. Csereklyei, Zsuzsanna & Qu, Songze & Ancev, Tihomir, 2019. "The effect of wind and solar power generation on wholesale electricity prices in Australia," Energy Policy, Elsevier, vol. 131(C), pages 358-369.
    12. James Bushnell & Kevin Novan, 2021. "Setting with the Sun: The Impacts of Renewable Energy on Conventional Generation," Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 8(4), pages 759-796.
    13. Severin Borenstein & James Bushnell, 2015. "The US Electricity Industry After 20 Years of Restructuring," Annual Review of Economics, Annual Reviews, vol. 7(1), pages 437-463, August.
    14. Pourkhanali, Armin & Khezr, Peyman & Nepal, Rabindra & Jamasb, Tooraj, 2023. "Fuel Price Caps in the Australian National Wholesale Electricity Market," Working Papers 6-2023, Copenhagen Business School, Department of Economics.
    15. Brown, Stephen J. & Warner, Jerold B., 1980. "Measuring security price performance," Journal of Financial Economics, Elsevier, vol. 8(3), pages 205-258, September.
    16. Clements, A.E. & Hurn, A.S. & Li, Z., 2016. "Strategic bidding and rebidding in electricity markets," Energy Economics, Elsevier, vol. 59(C), pages 24-36.
    17. Koch, Christopher & Hirth, Lion, 2019. "Short-term electricity trading for system balancing: An empirical analysis of the role of intraday trading in balancing Germany's electricity system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 113(C), pages 1-1.
    18. Par Holmberg, 2007. "Supply Function Equilibrium with Asymmetric Capacities and Constant Marginal Costs," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2), pages 55-82.
    19. Crawford, Gregory S. & Crespo, Joseph & Tauchen, Helen, 2007. "Bidding asymmetries in multi-unit auctions: Implications of bid function equilibria in the British spot market for electricity," International Journal of Industrial Organization, Elsevier, vol. 25(6), pages 1233-1268, December.
    20. Paul J. Burke and Ashani Abayasekara, 2018. "The Price Elasticity of Electricity Demand in the United States: A Three-Dimensional Analysis," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2).
    21. Khezr, Peyman & Nepal, Rabindra, 2021. "On the viability of energy-capacity markets under decreasing marginal costs," Energy Economics, Elsevier, vol. 96(C).
    22. Liu, Chang & Liu, Yuan & Zhang, Dayong & Xie, Chunping, 2022. "The capital market responses to new energy vehicle (NEV) subsidies: An event study on China," Energy Economics, Elsevier, vol. 105(C).
    23. Harrison Fell & Daniel T. Kaffine, 2018. "The Fall of Coal: Joint Impacts of Fuel Prices and Renewables on Generation and Emissions," American Economic Journal: Economic Policy, American Economic Association, vol. 10(2), pages 90-116, May.
    24. A. Stan Hurn & Annastiina Silvennoinen & Timo Teräsvirta, 2016. "A Smooth Transition Logit Model of The Effects of Deregulation in the Electricity Market," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 31(4), pages 707-733, June.
    25. Csereklyei, Zsuzsanna & Manchester, Julia & Ancev, Tihomir, 2023. "Coal generator revenues and the rise of renewable generation: Evidence from Australia’s National Electricity Market," Energy Policy, Elsevier, vol. 178(C).
    26. Märkle-Huß, Joscha & Feuerriegel, Stefan & Neumann, Dirk, 2018. "Contract durations in the electricity market: Causal impact of 15min trading on the EPEX SPOT market," Energy Economics, Elsevier, vol. 69(C), pages 367-378.
    27. 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).
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    Keywords

    Electricity market settlement; Bidding; Australia;
    All these keywords.

    JEL classification:

    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
    • Q48 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Government Policy
    • D4 - Microeconomics - - Market Structure, Pricing, and Design

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