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

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  •  Not that simple (10+ / 0-)

    Yes, this is a good idea, but not the huge savings you suggest.  Keep in mind that the loss due to the resistance of the transmission cable varies according to the current.  Raising the voltage allows the current to be reduced while the same amount of power is transmitted.  Or, it allows the same current, higher voltage, and more power transmitted (and the same resistance loss due to the same current as original).

    The transformers at each end of the transmission line that first raise the voltage to 700,000 volts or whatever you're running will have more impedance--a loss.  And the transformers at the receiving end will be the same situation.

    The higher voltage will create more corona loss and more capacitive loss.

    High voltage DC can help minimize these losses, but the rectification from AC to DC at the origin and the inversion from DC to AC at the destination also have losses.

    Yes, good idea.  Not a panacea.

    •  The main savings from this is that a transmission (0+ / 0-)

      line could carry up to 2.5 times as much power with only minor modification that wouldn't make it any more ugly.

      Building a new transmission line is expensive, and since nobody wants one in their back yard it can be hard to get permission.

      We're all pretty strange one way or another; some of us just hide it better. "Normal" is a dryer setting.

      by david78209 on Tue Jan 22, 2013 at 02:28:48 PM PST

      [ Parent ]

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