Wairau River Hydro scheme proposed February 11th, 2020 2005-07-28T11:25:00+12:00 TrustPower is about to launch a $240m hydro power scheme in the Wairau (PDF, 828k)valley, that would divert 50% of the Wairau river through six powerstations on a 46km canal beside the river. The section affected is a braided, low-gradient reach from the Branch river to Renwick. The project plan includes a rodeo facility at the canal outlet. The company is expected to submit resource consents to the Marlborough District Council in the near future.