This vertical wind turbine design is currently being tested on the shores of the Columbia River at The Dalles,Oergon. Developed by a Portland Oregon firm,it features many impressive advantages over more conventional designs. It operate in winds as low as 4 mph,is very compact and nearly silent making it usable even in urban environments,and is far safer for flying wildlife | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Foster, John R. |
Taille de l’image : | 2590 px × 3775 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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