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Firming merchant renewable generators in Australia’s National Electricity Market

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  • Flottmann, Jonty H.
  • Akimov, Alexandr
  • Simshauser, Paul

Abstract

Global decarbonisation is driving investments in intermittent renewable generation, with most plant entering the market by way of a Power Purchase Agreement. In Australia’s National Electricity Market, a surprising number of renewable generators have entered on a merchant basis. To maintain tractable revenues some minimum level of hedging is required, but in an energy-only electricity market with a very high market price cap, merchant intermittent generators require some level of associated firming capacity to ensure spot price exposures can be adequately managed. This article uses unit commitment, battery arbitrage and stochastic discounted cashflow valuation models to compare an Open Cycle Gas Turbine and a battery as firming options for a hypothetical wind farm in the South Australian region of the NEM. Using historic market data from 2010–2020, we find OCGT firming capacity helps the wind farm to generate consistent net cash flows, allowing it to withstand the highs and lows of spot market prices whilst covering required contract-for-difference payments associated with hedging. When battery firming is deployed, the wind farm/ battery portfolio generated higher cash flows at specific times, reflecting participation in price arbitrage under low spot price scenarios. However, battery performance was constrained by costly storage capacity.

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  • Flottmann, Jonty H. & Akimov, Alexandr & Simshauser, Paul, 2022. "Firming merchant renewable generators in Australia’s National Electricity Market," Economic Analysis and Policy, Elsevier, vol. 74(C), pages 262-276.
    • Handle: RePEc:eee:ecanpo:v:74:y:2022:i:c:p:262-276
    DOI: 10.1016/j.eap.2022.02.005
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    1. Gohdes, N. & Simshauser, P., 2022. "Renewable entry costs, project finance and the role of revenue quality in Australia’s National Electricity Market," Cambridge Working Papers in Economics 2206, Faculty of Economics, University of Cambridge.
    2. Ouyang, Xiaoling & Lin, Boqiang, 2014. "Levelized cost of electricity (LCOE) of renewable energies and required subsidies in China," Energy Policy, Elsevier, vol. 70(C), pages 64-73.
    3. 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.
    4. 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.
    5. Tim Nelson & Fiona Orton & Tony Chappel, 2018. "Decarbonisation and wholesale electricity market design," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 62(4), pages 654-675, October.
    6. Newbery, David, 2016. "Missing money and missing markets: Reliability, capacity auctions and interconnectors," Energy Policy, Elsevier, vol. 94(C), pages 401-410.
    7. Simshauser, Paul, 2018. "On intermittent renewable generation & the stability of Australia's National Electricity Market," Energy Economics, Elsevier, vol. 72(C), pages 1-19.
    8. Han, Lin & Kordzakhia, Nino & Trück, Stefan, 2020. "Volatility spillovers in Australian electricity markets," Energy Economics, Elsevier, vol. 90(C).
    9. Bruck, Maira & Sandborn, Peter & Goudarzi, Navid, 2018. "A Levelized Cost of Energy (LCOE) model for wind farms that include Power Purchase Agreements (PPAs)," Renewable Energy, Elsevier, vol. 122(C), pages 131-139.
    10. Clay Campaigne & Shmuel S. Oren, 2016. "Firming renewable power with demand response: an end-to-end aggregator business model," Journal of Regulatory Economics, Springer, vol. 50(1), pages 1-37, August.
    11. Mayer, Klaus & Trück, Stefan, 2018. "Electricity markets around the world," Journal of Commodity Markets, Elsevier, vol. 9(C), pages 77-100.
    12. Prof. Andrew C. Worthington & Helen Higgs, 2004. "The Relationship Between Energy Spot And Futures Prices: Evidence From The Australian Electricity Market," The IUP Journal of Applied Economics, IUP Publications, vol. 0(4), pages 65-82, July.
    13. Gohdes, Nicholas & Simshauser, Paul & Wilson, Clevo, 2022. "Renewable entry costs, project finance and the role of revenue quality in Australia's National Electricity Market," Energy Economics, Elsevier, vol. 114(C).
    14. Simshauser, Paul, 2020. "Merchant renewables and the valuation of peaking plant in energy-only markets," Energy Economics, Elsevier, vol. 91(C).
    15. Denholm, Paul & Hand, Maureen, 2011. "Grid flexibility and storage required to achieve very high penetration of variable renewable electricity," Energy Policy, Elsevier, vol. 39(3), pages 1817-1830, March.
    16. Catherine Mitchell, 2016. "Momentum is increasing towards a flexible electricity system based on renewables," Nature Energy, Nature, vol. 1(2), pages 1-6, February.
    17. Lion Hirth, 2013. "The Market Value of Variable Renewables. The Effect of Solar and Wind Power Variability on their Relative Price," RSCAS Working Papers 2013/36, European University Institute.
    18. Paul Simshauser and Joel Gilmore, 2020. "On Entry Cost Dynamics in Australia's National Electricity Market," The Energy Journal, International Association for Energy Economics, vol. 0(Number 1).
    19. 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.
    20. Paul L. Joskow, 2011. "Comparing the Costs of Intermittent and Dispatchable Electricity Generating Technologies," American Economic Review, American Economic Association, vol. 101(3), pages 238-241, May.
    21. McConnell, Dylan & Forcey, Tim & Sandiford, Mike, 2015. "Estimating the value of electricity storage in an energy-only wholesale market," Applied Energy, Elsevier, vol. 159(C), pages 422-432.
    22. Hirth, Lion, 2013. "The market value of variable renewables," Energy Economics, Elsevier, vol. 38(C), pages 218-236.
    23. Alan Rai & Tim Nelson, 2020. "Australia's National Electricity Market after Twenty Years," Australian Economic Review, The University of Melbourne, Melbourne Institute of Applied Economic and Social Research, vol. 53(2), pages 165-182, June.
    24. Shen, Wei & Chen, Xi & Qiu, Jing & Hayward, Jennifier A & Sayeef, Saad & Osman, Peter & Meng, Ke & Dong, Zhao Yang, 2020. "A comprehensive review of variable renewable energy levelized cost of electricity," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).
    25. Paul L Joskow, 2019. "Challenges for wholesale electricity markets with intermittent renewable generation at scale: the US experience," Oxford Review of Economic Policy, Oxford University Press and Oxford Review of Economic Policy Limited, vol. 35(2), pages 291-331.
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    Cited by:

    1. Gohdes, Nicholas & Simshauser, Paul & Wilson, Clevo, 2023. "Renewable investments, hybridised markets and the energy crisis: Optimising the CfD-merchant revenue mix," Energy Economics, Elsevier, vol. 125(C).
    2. Newbery, David M. & Biggar, Darryl R., 2024. "Marginal curtailment of wind and solar PV: Transmission constraints, pricing and access regimes for efficient investment," Energy Policy, Elsevier, vol. 191(C).
    3. Newbery, David M., 2023. "High renewable electricity penetration: Marginal curtailment and market failure under “subsidy-free” entry," Energy Economics, Elsevier, vol. 126(C).
    4. Gohdes, Nicholas, 2023. "Unhedged risk in hybrid energy markets: Optimising the revenue mix of Australian solar," Economic Analysis and Policy, Elsevier, vol. 80(C), pages 1363-1380.
    5. Flottmann, Jonty & Wild, Phillip & Todorova, Neda, 2024. "Derivatives and hedging practices in the Australian National Electricity Market," Energy Policy, Elsevier, vol. 189(C).

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