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Divergent Patterns in Wind Power Project Cost Overruns: How Scale Matters and Determinants of Construction Risk.

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Title: Divergent Patterns in Wind Power Project Cost Overruns: How Scale Matters and Determinants of Construction Risk.
Authors: Ryu, Hanee1 (AUTHOR), Sovacool, Benjamin K.1,2,3,4 (AUTHOR) sovacool@bu.edu
Source: Wind Energy. Dec2025, Vol. 28 Issue 12, p1-9. 9p.
Subjects: Cost overruns, Offshore structures, Wind power plants, Project management, Economies of scale, Wind power
Abstract: This study analyzes cost overruns in 80 wind power projects, focusing on the impact of configuration types and their interaction effects with other project characteristics. Using multiple regression analyses, including interaction terms and segmented regression, we investigate four key aspects of cost overruns in wind power projects. First, we examine the interaction effects between configuration and other variables, revealing that offshore projects experience greater cost overruns with increases in scale and over time. Second, we identify contrasting patterns between configurations: onshore projects demonstrate technology learning effects, while offshore projects show diseconomies of scale in cost overrun. Third, we discover a critical threshold at 288 MW where cost overrun patterns significantly change, with projects below this scale showing a strong positive correlation with cost overruns. Finally, we analyze technical determinants specific to offshore projects, finding that hub height and distance from shore significantly influence cost overruns. These findings provide crucial insights for project planning and risk management in wind power, particularly highlighting the distinct challenges and characteristics of offshore projects. [ABSTRACT FROM AUTHOR]
Copyright of Wind Energy is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Divergent Patterns in Wind Power Project Cost Overruns: How Scale Matters and Determinants of Construction Risk.
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  Data: <searchLink fieldCode="JN" term="%22Wind+Energy%22">Wind Energy</searchLink>. Dec2025, Vol. 28 Issue 12, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Cost+overruns%22">Cost overruns</searchLink><br /><searchLink fieldCode="DE" term="%22Offshore+structures%22">Offshore structures</searchLink><br /><searchLink fieldCode="DE" term="%22Wind+power+plants%22">Wind power plants</searchLink><br /><searchLink fieldCode="DE" term="%22Project+management%22">Project management</searchLink><br /><searchLink fieldCode="DE" term="%22Economies+of+scale%22">Economies of scale</searchLink><br /><searchLink fieldCode="DE" term="%22Wind+power%22">Wind power</searchLink>
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  Label: Abstract
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  Data: This study analyzes cost overruns in 80 wind power projects, focusing on the impact of configuration types and their interaction effects with other project characteristics. Using multiple regression analyses, including interaction terms and segmented regression, we investigate four key aspects of cost overruns in wind power projects. First, we examine the interaction effects between configuration and other variables, revealing that offshore projects experience greater cost overruns with increases in scale and over time. Second, we identify contrasting patterns between configurations: onshore projects demonstrate technology learning effects, while offshore projects show diseconomies of scale in cost overrun. Third, we discover a critical threshold at 288 MW where cost overrun patterns significantly change, with projects below this scale showing a strong positive correlation with cost overruns. Finally, we analyze technical determinants specific to offshore projects, finding that hub height and distance from shore significantly influence cost overruns. These findings provide crucial insights for project planning and risk management in wind power, particularly highlighting the distinct challenges and characteristics of offshore projects. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Wind Energy is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/we.70053
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 9
        StartPage: 1
    Subjects:
      – SubjectFull: Cost overruns
        Type: general
      – SubjectFull: Offshore structures
        Type: general
      – SubjectFull: Wind power plants
        Type: general
      – SubjectFull: Project management
        Type: general
      – SubjectFull: Economies of scale
        Type: general
      – SubjectFull: Wind power
        Type: general
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      – TitleFull: Divergent Patterns in Wind Power Project Cost Overruns: How Scale Matters and Determinants of Construction Risk.
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              M: 12
              Text: Dec2025
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              Y: 2025
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