The Wairau Hydro Scheme is a canal based hydroelectric project proposed by TrustPower on the Wairau River in Marlborough, New Zealand.

The $280 million project would divert up to 60% of the river through 49 kilometres (30 mi) of canals to generate up to 70 megawatts (94,000 hp) of electricity.

[2] This decision was appealed to the Environment Court, which in 2010 decided in favour of the project.

[3] However, TrustPower put the project on hold in 2012, due to low electricity prices combined with rising construction costs.

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