Aotearoa needs to double the size of its electricity industry over the next 30 years to meet our emissions reductions targets. We've done it before in 1945 to 1985 but can we do it again? With a myriad of privately and publicly owned companies waiting for market and regulatory signals, it seems unlikely. Bernard Hickey talks with electricity expert John Hancock about the prospects of doubling our power industry again and explains how we can get it done.

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