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Roof Ventilator as VAWT | 4 comments (4 topical, editorial)
Re: Roof Ventilator as VAWT (3.00 / 0) (#4)
by ADMIN (info74 at otherpower.com) on Wed Mar 19th, 2008 at 10:16:32 PM MST
(User Info)

I wrote an article about just this question. It's in the Oct. 2005 issue of the now-defunct Energy Self Sufficiency Newsletter:
http://rebelwolf.com/essn/ESSN-Oct2005.pdf

Basically, the swept area is tiny, so there's little power available. And the blade design is terrible for making electricity--maybe you could run an LED or two. Worst, the more power you try to make, the less effective the roof vent is at doing it's job in the first place--venting your attic.

DANF (ADMIN)



Roof Ventilator as VAWT | 4 comments (4 topical, 0 editorial)

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