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Storing Wind for a Rainy Day: What Kind of Electricity Does Denmark Export?

  • Richard Green and Nicholas Vasilakos

Physical laws mean that it is generally impossible to identify which power stations are exporting to another country, but economic logic offers strong clues. On windy days, Denmark tends to export electricity to its neighbours, and to import power on calm days. Storing electricity in this way thus allows the country to deal with the intermittency of wind generation. We show that this kind of behaviour is theoretically optimal when a region with wind and thermal generation can trade with one based on hydro power. However, annual trends in Denmark's trade follow its output of thermal generation and are inversely related to Nordic production of hydro power and the amount of water available to Scandinavian generators, with no correlation with wind generation. We estimate the cost of volatility in Denmark's wind output to equal between 4% and 8% of its market value.

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Article provided by International Association for Energy Economics in its journal The Energy Journal.

Volume (Year): Volume 33 (2012)
Issue (Month): Number 3 ()

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Handle: RePEc:aen:journl:33-3-01
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  1. Førsund, Finn R. & Singh, Balbir & Jensen, Trond & Larsen, Cato, 2008. "Phasing in wind-power in Norway: Network congestion and crowding-out of hydropower," Energy Policy, Elsevier, vol. 36(9), pages 3514-3520, September.
  2. Cossent, Rafael & Gómez, Tomás & Frías, Pablo, 2009. "Towards a future with large penetration of distributed generation: Is the current regulation of electricity distribution ready? Regulatory recommendations under a European perspective," Energy Policy, Elsevier, vol. 37(3), pages 1145-1155, March.
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