Solar & Wind Power

1. smcmlln Said,

   here is an idea… …
   here is an idea… using a parabolic mirror, get a fta dish motor and use that with the system you and your nephew are designing to control the motor…

2. lennyhome Said,

   Ubuntu linux FTW
   Ubuntu linux FTW

3. enicao Said,

   Why do you need a …
   Why do you need a computer or complex electronics to track the sun?

   I think a system with 2 very small solar cells and a motor are enough. ( a bit difficult to explain writing)
   - the positive side of the panels are connected together to the plus side of the motor. so the 2 cells are working against each other. the one who receive more sun light produces more power and turns the panel it’s way, until both have the same power (facing the sun).
   this system is very simple, light and self powered.

4. toor81 Said,

   Yea linux rock’s
   Yea linux rock’s

5. peppoj Said,

   Linux
   Linux

6. svesolar Said,

   I have a cost …
   I have a cost effective solution build a tracking system. 2 axis 4 bearings simple electronics and works.

7. PsychedelicRhino Said,

   Youtube added a …
   Youtube added a space in album and telescope in the link. Remove them. Also (of course) replace (dot) with a period.

8. PsychedelicRhino Said,

   Here’s my freznel …
   Here’s my freznel cooking some chicken. It’s a very similar setup to Dans.

   img(dot)photobucket(dot)com/albums/v606/Cyberdactyl/Telescope/Cookin.jpg

   img(dot)photobucket(dot)com/albums/v606/Cyberdactyl/Telescope/lens1.jpg

   img(dot)photobucket(dot)com/albums/v606/Cyberdactyl/Telescope/lens2.jpg

9. traviscadden Said,

   Re: Cloud cover …
   Re: Cloud cover affecting a phototransistor system. These always look for a balance of light. The ones that keep moving simply have not been designed with a setpoint that would tell them movement isn’t worth it at the time. When correctly designed they will only move every 10 mins or so under bright sun, as the setpoint is exceeded.
   Your nephew will probably have a very good idea of how to build in this differential, as well as other improvements. BEAM robotics also point the way.

10. bg0821 Said,

    I have a solar oven …
    I have a solar oven and recently took a stepper motor out of a copying machine which I thought of hooking up to a ac timer device to turn on and off the motor now and then would be nice to move the oven. the motor I have and there are different configurations is a reversing polarity type which pos and neg is alternated for the motor to move a step. well, maybe relays with batteries and diodes would do the trick. I have to think it over more. nice job there.

11. earthday78 Said,

    cant wait to try it
    cant wait to try it

12. sunimagine Said,

    Dan Denise
    Clic …
    Dan Denise
    Clic on my nick !

13. desiredusername Said,

    I’d figured some of …
    I’d figured some of this out on my own, but the dual heat sinks are brilliant. Thanks for the tip.

14. AdminOnDuty Said,

    Make your system …
    Make your system self contained. Put the driver and motor in a sealed box along with a gel cell battery. Some of the produced power can keep the battery charged. Heat sinks can be mounted inside and outside and bonded with brass screws through the box (seal with RTV) to keep the internal temperature at the same as the outside temp without circuilating moist air inside the box. I designed my first heliostat in 1977 – Cheers

15. sunimagine Said,

    Now you must build …
    Now you must build the moovement who follows the earth rotation Est to West.This will allow the machine to focus sun permnently.This moovement is in the order of a quarter of degree per minute,such a demultiplication!!!!The last step of your work is a rotating base adapted to the aparatus you show in the video.This way,you will obtain permanent focusing!
    Congratulations for this work.Go ahead!!!

16. GREENPOWERSCIENCE Said,

    Thank you very much …
    Thank you very much for the nice comments:-)

17. florifattori Said,

    Dear Dan and Denise …
    Dear Dan and Denise:
    We are really proud of your experiments. Solar concentration through optical devises are very promising tehcnologies. We think that the HELIOSTAT SUN TRACKER its very important, in order to capture and profit the most sunlight as possible!!
    Good luck with your future developments!

18. GREENPOWERSCIENCE Said,

    Thank you. You have …
    Thank you. You have some nice Stirling Engine Videos.

19. impazzitoinvolo Said,

    Stepper motors are …
    Stepper motors are the best for this aplication.
    Congratulations GPS!

20. killerrobot88 Said,

    pass the denise …
    pass the denise rojas email

21. desiredusername Said,

    Well yeah, I was …
    Well yeah, I was thinking a rubbermaid container. But there’s always leaks and such, especially where the power cord comes out. (It has to have a power cord for the motor.)

    I’ll think of something, though. I should really post a video or at least a blog entry detailing what I’ve done with your acrylic mirror idea.

22. GREENPOWERSCIENCE Said,

    Thank You:-)
    Thank You:-)

23. GREENPOWERSCIENCE Said,

    COOL! Take some …
    COOL! Take some thin plastic or acrylic. Make a rough mold out of clay or cement of the interior components. A block of wood will work too. USe a heat gun to mold the acrylic. Or find a plastic jar/container.

24. desiredusername Said,

    No way! I just …
    No way! I just programmed an Arduino to control a stepper to do this same thing LAST NIGHT.

    The biggest question I have is how to waterproof the whole thing for being outside full time.

25. tommcc99 Said,

    You keep doing the …
    You keep doing the good work! I want this technology. As soon as i get my trough built I will call.

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