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Renewable Energy Technologies and Electricity Forward Market Risks

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  • Derek Koolen
  • Derek Bunn
  • Wolfgang Ketter

Abstract

We analyse how the introduction of the same renewable energy technology at different parts of the electricity supply chain has different price formation effects on wholesale power markets. We develop a multi-stage competitive equilibrium model to evaluate the effects on short-term price formation of a technology shift from conventional to both large-scale renewable energy production (e.g. wind and solar farms) and distributed renewable energy sources (e.g. rooftop solar). We find that wind and solar technologies oppositely affect the forward risk premium, and this is related to technology-varying, risk-related hedging pressures of producers and retailers. We form a multi-factor propositional framework and empirically validate the model by analyzing data from California and Britain; two markets which recently experienced significant increases of renewable power, in terms of utility scale and distributed sources. The work is innovative in showing theoretically and empirically how different types of renewable technologies influence market price formation differently. This has implications for market participants facing wholesale price risks, as well as regulators and policy-makers.

Suggested Citation

  • Derek Koolen & Derek Bunn & Wolfgang Ketter, 2021. "Renewable Energy Technologies and Electricity Forward Market Risks," The Energy Journal, , vol. 42(4), pages 43-68, July.
    • Handle: RePEc:sae:enejou:v:42:y:2021:i:4:p:43-68
    DOI: 10.5547/01956574.42.4.dkoo
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    References listed on IDEAS

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    1. Severin Borenstein & James Bushnell & Christopher R. Knittel & Catherine Wolfram, 2008. "Inefficiencies And Market Power In Financial Arbitrage: A Study Of California'S Electricity Markets," Journal of Industrial Economics, Wiley Blackwell, vol. 56(2), pages 347-378, June.
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