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Central Otago may be one stop closer to harnessing new power storage for New Zealanders.
It's been described as having the potential to be at the centrepiece of The NZ Battery Project.
Hydrologist, and Waikato University Associate Professor, Earl Bardsley was the first to flag the idea of using Lake Onslow for energy storage.
He talks to Jesse about the lake's potential.
Photo: Shellie Evans 2014/Wikipedia