For reference the proposed #LakeOnslow pumped storage project is estimated to cost $15.7B.
https://www.mbie.govt.nz/building-and-energy/energy-and-natural-resources/low-emissions-economy/nz-battery/lake-onslow-option/

Once up a time, Lake Onslow was called Dismal Swamp. In 1890 they dammed the Teviot River which feeds it and built a dam. In 1982 a new dam raised the water level by another 5m.

The government is continuing down the path of pumped hydro despite its estimated $16b price tag.

Is it a good idea? Are there workable alternatives? Because $16b would buy a lot of wind & solar, reducing the overall load on the grid.

https://www.stuff.co.nz/business/300831569/government-to-take-lake-onslow-power-project-forward-despite-16b-price-tag

#LakeOnslow #Onslow #PumpedHydro #Hydro