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grid-tie inverters? Third party certifications?

Discussion in 'Home Power and Microgeneration' started by mike, Apr 22, 2012.

  1. mike

    mike Guest

    Friend of mine in Washington State, USA purchased a solar
    grid-tie inverter off ebay.
    IT has no stickers on the case.
    An email to the vendor requesting info on which third-party
    certifications had been achieved came back, "none, costs too much."

    My understanding is that anything that supplies power REQUIRES a UL sticker.
    And the switcher should need an FCCID.

    There are probably other certifications required to tie it to the grid.
    He hasn't yet achieved a connection with a utility worker who knows
    about grid-tie.

    The maximum output is less than the baseline load, so the meter won't
    need to run backwards. He just wants to reduce his power bill
    and use up some panels wasting away in his garage.

    Google searches have turned up no free links to grid-tie standards.
    I guess if you're an IEEE member, you can get access to some draft
    standards.

    Anybody got links to free standards docs?
    Opinions on how vendors get away with selling devices that regulations
    prevent using?

    Discussions of successful small-scale DIY solar grid tie?
    Seems risky to build a system only to have it rejected by the utility
    over some standard you can't read.

    Thanks, mike
     
  2. Vaughn

    Vaughn Guest

    Don't ask, don't tell? Still, with the new smart meters, even a
    momentary reverse power flow is likely to set a warning flag with the
    utility.

    Vaughn
     
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