New Zealand High Voltage DC Distribution Box

HVDC Inter-Island

OverviewRationale for the linkRouteTechnical descriptionTransmission faults and outagesHistoryPlanned upgradesSite locations

The HVDC Inter-Island link is a 610 km (380 mi) long, 1200 MW high-voltage direct current (HVDC) transmission system connecting the electricity networks of the North Island and South Island of New Zealand together. It is commonly referred to as the Cook Strait cable in the media and in press releases, although the link is much longer than its Cook Strait section. The link is owned and operated by state-owned transmission company Transpower New Zealand.

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