Floating Power

From: Magenn Power Inc
Here’s another thing that follows the same general idea as the Flying power from last week. This time they are using lighter then air helium to raise the blimp to over 330 meters above the ground. Like the other ones, it transfers its power to the ground via cables (come on science, invent wireless electricity already). However this one looks to be more stable in the air, considering it’s a blimp, and not a helicopter Detail... (Technology not D.I.Y)

MiniMill: DIY wind turbine - small stepper motors

From: TheBackShed.com
The Mini Mill is a fun little weekend project, and can be used to light a LED, small light bulb, or even charge a couple of NiCad batteries.
It is not necessary to build your own complex and expensive alternator for a small DIY wind turbine - small stepper motors can be perfect for the job. Found in old computer printers (dot matrix, daisy wheel, and some laser), stepper motors are cheaply (if not freely) available and generate AC power at low rates of rotation (far lower than similarly sized DC motors for example). Therefore small wind turbine blades can be mounted directly onto the motor shaft rather than through a noisy and complicated gearing mechanism. Small stepper motors (i.e. under 1 inch diameter) are only really useful for powering a couple of LEDs, larger motors can be used to recharge batteries and much more. Detail...

See Also...

• Electricity With Stepper Motors Freuk.co.uk Link...
• Stepper Motor Basics From reuk.co.uk Link...
  

Electricity producing Wind turbine

From: Michael Davis at mdpub.com
Several years ago I bought some remote property in Arizona. I am an astronomer and wanted a place to practice my hobby far away from the sky-wrecking light pollution found near cities of any real size. I found a great piece of property. The problem is, it's so remote that there is no electric service available. That's not really a problem. No electricity equals no light pollution. However, it would be nice to have at least a little electricity, since so much of life in the 21st century is dependant on it.

One thing I noticed right away about my property is that most of the time, the wind is blowing. Almost from the moment I bought it, I had the idea of putting up a wind turbine and making some electricity. This is the story of how I did it. Not with an expensive, store-bought turbine, but with a home-built one that cost hardly anything. If you have some fabricating skills and some electronic know-how, you can build one too. Detail...

See Also...

• Quick PVC wind turbine/windmill blades. From YourGreenDream Link...
  

DIY 1000 watt wind turbine

From: instructables.com
We built a 1000 watt wind turbine to help charge the battery bank that powers our offgrid home. It's a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed to a charge controller. The magnets spin with the wind, the coils are fixed, so no brushes or slip rings necessary. Detail...
See Also...

• Carving your own wooden wind turbine blades