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  4. How do NEWA and ERA5 compare for assessing offshore wind resources and wind farm siting conditions?
 
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2022
Conference Paper
Titel

How do NEWA and ERA5 compare for assessing offshore wind resources and wind farm siting conditions?

Abstract
In advance to the construction of a wind farm, a wind resource assessment is performed, often by the use of wind atlas data. Two widely used and publicly available numerical datasets, ERA5 and the recently created NEWA, are compared and evaluated regarding wind climatology, variability and extreme wind speeds using a comprehensive database with high quality offshore measurements. NEWA shows to be more accurate but less precise in terms of predicting mean wind speed and correlation coefficients. However, the higher temporal resolution of NEWA causes a better representation of the wind variability for the offshore sites. Extreme wind speed predictions based on both numerical datasets are underestimated on average. The spectral correction method is applied and found to be appropriate for the correction of the error in predicting the 50-year return wind speed from the numerical datasets for some sites while it fails for others.
Author(s)
Meyer, Paul Julian
Fraunhofer-Institut für Windenergiesysteme IWES
Gottschall, Julia
Fraunhofer-Institut für Windenergiesysteme IWES
Hauptwerk
WindEurope Electric City 2021 Conference
Project(s)
Digitale_Windboje - Extrapolation der Windmessdaten einer Wind-Lidar-Boje mit Modelldaten zur Ermittlung des Windpotenzials für Offshore-Windparkclusterflächen
Funder
Bundesministerium für Wirtschaft und Klimaschutz -BMWK-
Konferenz
WindEurope Electric City Conference 2021
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DOI
10.1088/1742-6596/2151/1/012009
Language
English
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