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View Diary: The simple innovation that could make wind power a big player (230 comments)

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  •  Speaking of NIMBY (4+ / 0-)

    You probably really wouldn't want one of these puppies in your back yard!

    UHV transmission lines have their own special risks.  Ozone, corona discharge, magnetic field effect, and stray voltage induction are all potential risks made worse by higher voltages.  So most urban distribution plant stay at the relatively safe 120 kv level, while long-haul distribution in the US is usually under 500 kV.  700 kV was proposed a few decades ago and sees some use, but it isn't always welcome.

    Besides those issues, higher voltages make the transformers and switch gear more expensive. So the whole system cost has to be looked at.  UHV financially makes sense for some very long runs (desert to distant market) but not everywhere.

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