Resource and Project Energy Assessment 2018

Sessions Speakers Buzz

Effective quantification of wind speed variability at different temporal scales

11 Sep 18
4:00 PM - 5:00 PM

Tracks: Poster Presentation, Rapid Fire Session

Inter-annual variability remains a key component of the overall uncertainty in the wind resource assessment process, which is typically defined as the standard deviation of the historical annual means. However, when the wind-speed distributions differ from Gaussian, parameters such as skewness and kurtosis are necessary to describe the accuracy of using standard deviation. Further, using MERRA-2 reanalysis data, we demonstrate the dependence of wind-speed variabilities on temporal resolution, from hourly to monthly. We also compare statistical metrics for quantifying variabilities at different scales. Finally, we synthesize wind resource and variability metrics to highlight regions that are ideal for wind-farm development.