TaupÅ's natural hot springs provide energy for around 50,000 domestic homes, but there is a valuable mineral in the murky pools that goes to waste.
Now, at Ohaaki Power Station, they've built a brand new plant to extract the silica from geothermal fluid.
In a world first, the boiling liquid is rapidly cooled and the silica is removed through state of the art filters.
(Video 1:27 Minutes)
