00:00
561
More
See all Show me
78. Maker Workshop - Wind Power Generator on MAKE: television
3 years ago
Taking a motor from an old exercise treadmill and some PVC pipe, John Park constructs a wind-powered generator. The electrical power may not be enough to get your home off the grid, but the great thing about the project is how it explains in simple terms the technology involved in turning wind into free electricity.

Download the PDFs for these projects here cachefly.oreilly.com/make/television/wind.pdf

Credits

Likes

See all likes
  • Alex Wiebe 3 years ago
    Very cool. Some details that would be useful to add are:

    How to deal with the wire from the generator getting tangled around the post as the wind changes direction...

    How to balance the blades - careful cutting and positioning can only go so far...

    And finally, set this thing up and monitor it for a month. Let us know what the peak wattage is that was generated and what the total number of watt-hours produced over the month was.

    Thanks!
  •  
  • Simon Simonsen 2 years ago
    Sorry mate, that's not free energy the way you demonstrated. You just used your gasoline to propel the vehicle to drive the wind mill, a very inefficient way of converting petrol to electricity I would assume :) Yeah yeah, a bit pedantic, but still, would be nice to see what kind of gale force would be needed to spin that mill.
  • MAKE magazine plus 2 years ago
    We used it on the truck for testing purposes, not for gaining power.
  •  
  • Leonard Daniels 2 years ago
    Fantastic. Thanks for this. Two questions:

    1) Am I correct in assuming this output could be run into a charge controller to charge a battery bank?

    2) Would such battery bank setup and charge controller need 12 volt output? If so, could a treadmill motor and this setup produce enough rpm to generate?

    Realize this is a lengthy discussion to answer fully. Just a few brief and key points would help, if you are able to answer.

    Thanks!!
  •  
  • Prodeous 2 years ago
    I was wondering about a omnidirectional system. Where the motor is facing upwards, and a set of vertical fins setup in a circle would generate power without having the device to rotate to match wind direction.
  • Noah G 2 years ago
    Check out Faroun's VAWTs - Vertical Axis Wind Turbines

    instructables.com/id/V8_4quot_vawtsavoniusvertical_axiswind_turbin/

    vawt.tk/
  •  
  • Shawn2010 2 years ago
    I followed his basic design but went with a 2 1/4 horse 10amp 90 volt treadmill motor. I also changed materials for the blades to 900 pvc waterpipe in 8 inch, you would be amazed at how solid and thick it is! I solved the wiring issue by using orange construction cord wich someone donated and drilling a large hole through the rail so the cord could be run through the pipe anchor bolted underneath, just make sure to leave a little slack inside your pipe! I anchored my pipe in a bead of concrete inside a 1/4 of a 55 gallon blue barrel on a 1 1/2 inch galvenized hinge made from 2 street elbows a tee and 2 8 inch nipples. I then added guide wires and tensioners, hacked off the reciever for my hitch on my mobile home and welded 2 2 1/2 inch muffler clamps into it - to clamp to the pipe! it produces about 30 vdc with a light wind. I brought the wires through the wall of the kitchen and added a 1200 watt galaxy modified sine wave inverter with 3000 watt high surge, tommorrow I am adding my 45 watt solar setup to the mix! I am using everstart maxx marine deep cycle batteries from walmart, they are 120 amp hour batteries. I have 2 so far. When it is all finished I will throw up a video of it all. When I'm done I should be able to power most of my kitchen and living room grid free!!!
  •  
  • Pabliito Gimenez 1 year ago
    Free electricity, huh? Like parts and labour used are free.

    OK, now serious:
    Never seen motor used, but it looks designed for indoors. Just how soon you will climb windmill mast for repairs?
    Blade manufacturing process gives you 2 (two) blade per pipe segment, 2 segments gives 4 (four) blades. Why the hell three blades per turbine? Four-bladed turbine are easier to assemble (90°) and balance (completely absent from video), +33% efficiency included.
  •  
This conversation is missing your voice. Take five seconds to join Vimeo or log in.

Advertisement

About this video

MOV
00:09:21
  • 1280x720, 352.57MB
  • Uploaded Thu February 12, 2009
  • Please join or log in to download

Statistics

Date Plays Comments
Totals 116K 43 8
Feb 14th 56 0 0
Feb 13th 62 0 0
Feb 12th 94 0 0
Feb 11th 73 0 0
Feb 10th 60 0 0
Feb 9th 56 0 0
Feb 8th 43 0 0