Comments on: DIY vertical axis wind turbine

By: juan

juan — Thu, 12 Jan 2012 15:39:46 +0000

my son picked your first VAWT as a school science project and i was wondering if you can send me the how to build with parts list. i see the 2nd build moves quicker then the first and i would like to build to compare the differances as well.
can you send the how to and parts list. would you prefer the amertek 38 or the windblue?

By: Hunter Reed

Hunter Reed — Sat, 01 May 2010 00:57:48 +0000

Wind power is a good source of electricity but it also takes up lots of space just like solar power plants.*.:

By: teco

teco — Wed, 27 Jan 2010 05:52:03 +0000

Why we don’t see vertical turbines using the common sheet metal ventilation turbines that we sometimes see on roof of houses, shops, etc? If they work ($30)it would be a cheap way to make power.

By: Bracken

Bracken — Sun, 13 Dec 2009 02:33:47 +0000

This is a neat design. I love how tall it is. The basic design is a savinious, my personal favorite, which typicall gets about 15% eff (out of betz max of 59%). The capture area is only half the swep area though. Two good websites to check out are centurionenergy.net and otherpower.org for more ideas for building wind turbines.

By: R-fa Rabbit

R-fa Rabbit — Wed, 07 Oct 2009 02:20:08 +0000

I love it! Great to reduce your carbon footprint…

By: CHOPRA

CHOPRA — Sat, 11 Jul 2009 05:52:44 +0000

INTERESTED IN VERTICAL AXIS WIND TURBINE GENERATORS – REGULAR – BULK QUANTITIES FOR INDIA. INVITE COMMNUCATION .

By: home made wind generators

home made wind generators — Sat, 27 Jun 2009 06:37:51 +0000

Engaging article,, will come back soon:D

By: home made wind generators

home made wind generators — Sat, 27 Jun 2009 05:56:54 +0000

Intelligent writing- will definitely come back again.

By: George

George — Tue, 28 Oct 2008 08:00:23 +0000

we produce and sell wind turbine : http://www.worldwindturbine.com

By: faroun

faroun — Sun, 05 Oct 2008 23:39:07 +0000

hey guys you should check out the V8 that i build last week…it is at instructables and youtube..

enjoy..

regards

faroun

By: AD5OS

AD5OS — Sun, 05 Oct 2008 17:20:51 +0000

Just checked out the website…. Lots of fun projects… many that would be really easy to find parts and great educational value.

I’d recommend you try some sort of transmission to get higher rpms in your generator from your turbine. And I’d recommend you hook up a rather large capacitor across your generator before you hook it up to a load so that when the turbine first starts turning it charges up the cap before it sees the load.

By: Damorian

Damorian — Sun, 05 Oct 2008 04:16:07 +0000

Awesome, I’ve actually been thinking about making one of these. Imho they seem better than the traditional ones since they take up less space so these actually open up the possibility of putting them in even the smallest of yards, even though they are considerably less efficient. How would a different number of “fins” affect it? Would it be the same as the traditional dutch style where the more fins the more torque and vice-versa? From what I gather that one has 10… I might try making one with 8 if I ever find the time…

By: Mike Grundy

Mike Grundy — Fri, 03 Oct 2008 13:02:20 +0000

I think VAWTs have much potential despite the inefficiencies pointed out already. Even though they have a low output, the sweet spot will be in mass amounts of small turbines ganged together. For example lining the sides of a highway will harvest the low altitude wind from passing vehicles. The low cost of manufacture will outweigh the occasional loss of nodes due to idiot drivers :-)

Mike

By: faroun

faroun — Tue, 30 Sep 2008 11:26:50 +0000

i had it going arround 400 to 500 rpm and all i got is8.5 volts, i think it will spinn apart if gone any faster.

faroun

By: Phil

Phil — Tue, 30 Sep 2008 03:07:46 +0000

Permanent magnet maglev is basically a magnetic bearing, a not that uncommon mechanical engineering solution. Put the north poles of two powerful magnets together and you get repulsion. You can use this to suspend the weight of the rotor and thus minimize the friction. Using several magnets together you can also shape a complex magnetic field that would hold a rotor up and keep it centered. Less friction equals more efficiency. Would that makeup for a difference in aerodynamics? no idea.