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Thread: Solar happenings

  1. #21
    Senior Member dpeilow's Avatar
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    Indeed I did, although bizzarely that was the URL I had that worked for me.

    I've edited the original post now.

  2. #22
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    The Anti-reflective coating is interesting to me, as it sounds like it could be used also for existing solar panels to boost their efficiency. That would be very cool!

    I wonder how far they are away from making it a product?

  3. #23
    Senior Member dpeilow's Avatar
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    Am I being dumb here? Surely, regardless of the new coating, if the panel is not normal to the direction of the light source then it will see a lower power flux across the panel and the cosine rule still applies?

  4. #24
    ERIC VFX vfx's Avatar
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    If I had money I would get these guys with the 25 percent guys and make a fortune.

  5. #25
    Senior Member dpeilow's Avatar
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    Well, I'm not so sure.

    Firstly, while they may be able to absorb every photon landing on the array, if the array is not normal (90 degrees) to the direction of the light, then they will get a proportional amount of photons to the angle that is presented.

    Secondly, if the photons absorbed are not of the frequency/wavelength/colour that the semiconductor junctions are able to convert then it doesn't matter. They will never get above the theoretical maximum that a state-of-the-art (e.g. triple junction) solar array can produce.

    There may be some benefits from the refraction from the seven layers, but this is not a panacea.

  6. #26
    ERIC VFX vfx's Avatar
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    Solar achieves parity with coal.

    Reminds me of comparing MPG to GPM.

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  8. #28
    ERIC VFX vfx's Avatar
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    Combine a possible drop in Solar prices and the new 30 percent no cap tax credit, This might be a good time to buy stock in PV.

  9. #29
    mod squad TEG's Avatar
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    Veranda personal solar, and and idea.

    So I saw this: Solar Power For $2 A Day



    It got me thinking, I have two types of things mounted on my roof pointed at the southern sky - solar panels & satellite dishes.
    Why not combine them. How about the "green dish" option from DirecTV and DishNetwork? When your dish gets mounted you ask for the green option and they give you a dish with a small solar panel integrated in. They are already mounting it and pointing it towards the southern sky, and running cables back into your house. The satellite box inside could have a small inverter built in and just send a bit of power back down the line during the day.
    Last edited by TEG; 2009-03-06 at 02:18 PM.

  10. #30
    Head Moderator / Administrator doug's Avatar
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    Quote Originally Posted by TEG View Post
    When your dish gets mounted you ask for the green option and they give you a dish with a small solar panel integrated in. They are already mounting it and pointing it towards the southern sky, and running cables back into your house. The satellite box inside could have a small inverter built in and just send a bit of power back down the line during the day.
    Integrated in?? You mean on the parabolic reflector?

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