Lifetime extension of onshore wind turbines: a review covering Germany, Spain, Denmark, and the UK

Lisa Ziegler, Elena Gonzalez, Tim Rubert, Ursula Smolka, Julio J. Melero

Research output: Contribution to journalArticle

71 Citations (Scopus)
584 Downloads (Pure)

Abstract

A significant number of wind turbines will reach the end of their planned service life in the near future. A decision on lifetime extension is complex and experiences to date are limited. This review presents the current state-of-the-art for lifetime extension of onshore wind turbines in Germany, Spain, Denmark, and the UK. Information was gathered through a literature review and 24 guidelinebased interviews with key market players. Technical, economic and legal aspects are discussed. Results indicate that end-of-life solutions will develop a significant market over the next five years. The application of updated load simulation and inspections for technical lifetime extension assessment differs between countries. A major concern is the uncertainty about future electricity spot market prices, which determine if lifetime extension is economically feasible.
Original languageEnglish
Pages (from-to)1261–1271
Number of pages11
JournalRenewable and Sustainable Energy Reviews
Volume82
Issue numberPart 1
Early online date21 Oct 2017
DOIs
Publication statusPublished - 28 Feb 2018

Keywords

  • wind turbines
  • maintenance
  • operations
  • lifetime extension
  • turbine inspections
  • renewable energy

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