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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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Renewable Energy: buzzing noises from inverters?

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  1.  
    • CommentAuthortony
    • CommentTimeSep 24th 2011
     
    anyone had any problems wit buzzing noises from solar inverters? or from electronic equipment in the same house as one?
    •  
      CommentAuthorDamonHD
    • CommentTimeSep 24th 2011
     
    My inverters make a quiet buzz. No problems for/from anything else plugged in to our mains over the years though.

    Rgds

    Damon
    • CommentAuthortony
    • CommentTimeSep 24th 2011
     
    nor mine either but a friend is concerned about possible of non perfect sine wave interferences
    • CommentAuthorGavin_A
    • CommentTimeSep 24th 2011
     
    inverters have come on a long way since the says of the modified sine wave inverters that'd cause nasty hums through any musical kit.
    •  
      CommentAuthorDamonHD
    • CommentTimeSep 25th 2011
     
    Modern inverters have to have a small THD (Total Harmonic Distortion) which should cover such issues, though I do note that the current flows seem to be odd enough to thoroughly confuse clip-on energy monitors:

    http://www.earth.org.uk/note-on-clip-on-power-meters-for-the-UK-REVIEW.html

    http://www.theregister.co.uk/2011/08/24/alertme_energy_monitoring_system_review/

    In principle someone is welcome to come round and plug their equipment into my house mains briefly to make sure that it doesn't get upset. B^>

    Rgds

    Damon
  6.  
    I live off grid, and found that if my mains wires came too close the phone line I got lots of noise, and no ADSL.
    Just keep mains/12V/phone cables apart!

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