Ice Throw

International Recommendations for Ice Fall and Ice Throw Risk Assessments

Achievements up to 2018: As a part of the working period from 2016 to 2018, an international working group under the umbrella of IEA-Task 19 assembled the current knowledge on ice fall and ice throw from wind turbines, observational data, and approaches to risk assessment into one document. The aim of these recommendations is to provide an international baseline reference for the creation of ice fall and ice throw risk assessments and thus increase the quality, consistency, and transparency of ice-risk assessments internationally. In the meeting of the executive committee of IEA Wind in October 2018, the document “International Recommendations for Ice Fall and Ice Throw Risk Assessments” has been accepted for publication and is now available for

Future plans: In the working period starting in 2019, the consortium is planning to continue its work by improving the data basis and the methodology for ice risk assessments, with the long-term goal to provide a more detailed and updated version of the recommendations by 2020. The experts from IEA Wind Task 19 will thereby focus on the following points:

  • Treatment of the uncertainties involved in the assessment of ice fall risks and connected to data quality, assumptions, and parametrization.
  • Effect of operational mode (e.g. blade heating) on fall/throw risk
  • Assessment of ice risk to superior roads like highways and federal roads

Participants in the Ice fall/throw working group include: Energiewerkstatt, Enercon, Meteotest, TÜV Süd, F2E, RES, Kjeller Vindteknikk and TÜV Nord.

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