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How Do They Get So Much Money for Grid Ties?

Discussion in 'Electronic Basics' started by Bret Cahill, Dec 30, 2012.

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  1. Bret Cahill

    Bret Cahill Guest

    Are there still some unexpired patents out there?

    Does a grid tie require a 200 lb copper coil?


    Bret Cahill
     
  2. Tom Biasi

    Tom Biasi Guest

    Could you be more specific Bret?
     
  3. P E Schoen

    P E Schoen Guest

    "Bret Cahill" wrote in message
    It is probably because of the extensive testing, certification, and
    liability issues of a device that connects to the utility company grid, and
    which has "potentially" life threatening implications if it fails to work as
    required. Something like the latest pill (such as Celebrex) which probably
    costs $0.10 to make and they sell for $3 a poop. (Oops, that's for a
    laxative!)

    Paul
     
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