Could tidal energy one day power NZ?

18 Dec 2025

OpenHydro/Cape Sharp Tidal Ventures
Image: OpenHydro/Cape Sharp Tidal Ventures

By Shannon Morris-Williams

New research suggests Aotearoa holds some of the world’s strongest tidal-stream energy potential – enough to generate up to 93% of today’s electricity use – but one expert cautions that extracting energy at such a scale could have significant impacts and remains highly uncertain.

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Story copyright © Carbon News 2025

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