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Understanding wind turbine price trends in the U.S. over the past decade

  • Bolinger, Mark
  • Wiser, Ryan
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    On a $/kW basis, wind turbine prices in the U.S. have declined by nearly one-third on average since 2008, after having previously doubled over the period from 2002 through 2008. These two substantial and opposing trends over the past decade – and particularly the earlier price doubling – run counter to the smooth, gradually declining cost trajectories predicted by standard learning curve theory. Taking a bottom-up approach, we examine seven possible drivers of wind turbine prices in the U.S., with the goal of estimating the degree to which each contributed to the doubling in turbine prices from 2002 through 2008, as well as the subsequent decline in prices through 2010. In aggregate, these seven drivers – which include changes in labor costs, warranty provisions, manufacturer profitability, turbine scaling, raw materials prices, energy prices, and foreign exchange rates – explain from 70% to 90% (depending on the year) of empirically observed wind turbine price movements in the U.S. through 2010. Turbine scaling is found to have been the largest single contributor to the price doubling through 2008, although the incremental cost of scaling has been justified by greater energy capture, resulting in a lower cost of wind generation.

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    File URL: http://www.sciencedirect.com/science/article/pii/S0301421511010421
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    Article provided by Elsevier in its journal Energy Policy.

    Volume (Year): 42 (2012)
    Issue (Month): C ()
    Pages: 628-641

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    Handle: RePEc:eee:enepol:v:42:y:2012:i:c:p:628-641
    Contact details of provider: Web page: http://www.elsevier.com/locate/enpol

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