Trees, Forests and Wind Turbines — A Manufacturer’s View
Schou Nielsen, Bo; and Stiesdal, Henrik
High shear (different wind speeds at different heights) creates problems with power curves.
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[2]
A 2.3 MW with 82.4 m rotor and 60 m hub height has 3.5% less apparent power at 10 m/s if sited near a 20 m forest with m = 0.25 than if sited in open terrain with m = 0.14 (where m is shear).
Bonus uses following rules of thumb for evaluation of possibility of power curve measurement:
Presentation by Bo Schou Nielsen and Henrik Stiesdal, Bonus Energy (now Siemens), 17 March, 2004
Download original document: “Trees, Forests and Wind Turbines – A Manufacturer’s View [3]”
URL to article: https://www.wind-watch.org/documents/trees-forests-and-wind-turbines-a-manufacturers-view/
URLs in this post:
[1] Image: https://docs.wind-watch.org/trees-shear-1.png
[2] Image: https://docs.wind-watch.org/trees-shear-2.png
[3] Trees, Forests and Wind Turbines – A Manufacturer’s View: https://docs.wind-watch.org/BONUS-trees-wind-shear.pdf