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Renewable Energy Zones in Australia’s National Electricity Market

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  • Simshauser, P.
Abstract
Australia’s National Electricity Market operates in one of the world’s longest and stringiest transmission networks. The 2016-2020 investment supercycle, in which 13,000 MW of renewables were committed, is slowly revealing the limits of network hosting capacity for renewable plant. In this article, side-effects arising from the supercycle are analysed. The majority sources of renewable investment failure relate to deteriorating system strength, viz. associated connection lags, remediation and curtailment costs. Although a multi-zonal market, the NEMs locational investment signals remain visibly strong. A change to nodal arrangements may refine dispatch efficiency but the bigger policy problem is rapidly diminishing network hosting capacity for new renewables, imperfect regulation and regulatory lag associated with augmentation. Markets participants seek to move faster than regulatory frameworks allow. Renewable Energy Zones (REZ) are examined through both i). a consumer-funded regulatory model and ii). a renewable generator-funded market model. A ‘super-sized concessional mezzanine’ facility is presented as a critical element of REZ capital funding. It forms the means by which to optimise market-based REZ transmission augmentation and moderate sponsor risks of transient underutilisation.

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  • Simshauser, P., 2021. "Renewable Energy Zones in Australia’s National Electricity Market," Cambridge Working Papers in Economics 2119, Faculty of Economics, University of Cambridge.
    • Handle: RePEc:cam:camdae:2119
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    Cited by:

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    7. Nicholas Gohdes & Paul Simshauser & Clevo Wilson, 2023. "Renewable investments in hybridised energy markets: optimising the CfD-merchant revenue mix," Working Papers EPRG2306, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    8. Mwampashi, Muthe Mathias & Nikitopoulos, Christina Sklibosios & Rai, Alan & Konstandatos, Otto, 2022. "Large-scale and rooftop solar generation in the NEM: A tale of two renewables strategies," Energy Economics, Elsevier, vol. 115(C).
    9. McDonald, Paul, 2023. "Locational and market value of Renewable Energy Zones in Queensland," Economic Analysis and Policy, Elsevier, vol. 80(C), pages 198-213.
    10. Paul Simshauser, 2023. "The regulation of electricity transmission in Australia's national electricity market: user charges, investment and access," Working Papers EPRG2311, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    11. Simshauser, Paul & Billimoria, Farhad & Rogers, Craig, 2022. "Optimising VRE capacity in Renewable Energy Zones," Energy Economics, Elsevier, vol. 113(C).
    12. 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.
    13. Chishti, Muhammad Zubair & Sinha, Avik & Zaman, Umer & Shahzad, Umer, 2023. "Exploring the dynamic connectedness among energy transition and its drivers: Understanding the moderating role of global geopolitical risk," Energy Economics, Elsevier, vol. 119(C).

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    More about this item

    Keywords

    Electricity; Renewable Energy Zones; transmission investment; locational investment signals;
    All these keywords.

    JEL classification:

    • D25 - Microeconomics - - Production and Organizations - - - Intertemporal Firm Choice: Investment, Capacity, and Financing
    • D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation
    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices

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