Hello again Ghoppy9,

Have my precautionary comments deterred you from your fledgling
interest in whirlyig power?

You were thinking of using a whirlygig to generate some household
power and I raised some potential difficulties with the concept -
although I know you'd definitely get SOME power from such a device.

I found this on the Net at ..

http://www.onetoremember.co.uk/cart.php?
target=product&product_id=16266&category_id=256

"The most ubiquitous application of the Savonius wind turbine is the
Flettner Ventilator which is commonly seen on the roofs of vans and
buses and is used as a cooling device. The ventilator was developed
by the German aircraft engineer Anton Flettner in the 1920s. It uses
the Savonius wind turbine to drive an extractor fan. The vents are
still manufactured in the UK by Flettner Ventilator Limited."

.. and also this:

"Description:

Savonius wind turbines are a type of vertical-axis wind turbine
(VAWT) used for converting the power of the wind into torque on a
rotating shaft. They were invented by the Finnish engineer Sigurd J
Savonius in 1922. Savonius turbines are one of the simplest turbines.
Aerodynamically, they are drag-type devices, consisting of two or
three scoops. Looking down on the rotor from above, a two-scoop
machine would look like an "S" shape in cross section. Because of the
curvature, the scoops experience less drag when moving against the
wind than when moving with the wind. The differential drag causes the
Savonius turbine to spin.

"Because they are drag-type devices, Savonius turbines extract much
less of the wind's power than other similarly-sized lift-type
turbines."

So ghoppy9, to spare you much experimental effort (which was my noble
aim in order to forestall teeth-grinding frustrations, vexations and
miscellaneous sufferings!) I suggest you search the Net for "Vertical
wind turbines" or have a go at designing something uniquely your own.
I wish you the best of success in such efforts.

There's also wind turbines on You Tube.