Articles | Volume 3, issue 2
Wind Energ. Sci., 3, 845–868, 2018
https://doi.org/10.5194/wes-3-845-2018
Wind Energ. Sci., 3, 845–868, 2018
https://doi.org/10.5194/wes-3-845-2018

Research article 05 Nov 2018

Research article | 05 Nov 2018

Assessing variability of wind speed: comparison and validation of 27 methodologies

Joseph C. Y. Lee et al.

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Latest update: 02 Dec 2021
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Short summary
To find the ideal way to quantify long-term wind-speed variability, we compare 27 metrics using 37 years of wind and energy data. We conclude that the robust coefficient of variation can effectively assess and correlate wind-speed and energy-production variabilities. We derive adequate results via monthly mean data, whereas uncertainty arises in interannual variability calculations. We find that reliable estimates of wind-speed variability require 10 ± 3 years of monthly mean wind data.