Paul,
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But you have higher for long-distance transmission, don't you?
Yes,
We use 110kV and 220kV as our transmission voltages here.
As well as a 500kV DC inter-island link to the North Island.
However, these Transmission voltages could be changed in the future, if and when our Transmission system gets a well overdue upgrade.
There has been talk of the 110kV system being dropped all together and a new 400kV system being installed across most of the South Island. [Linked Image]