Waikaremoana Power Scheme


The Waikaremoana Power Scheme has 3 power stations that utilise water predominantly from Lake Waikaremoana.

The power scheme is among the oldest hydro schemes in the country with the main power station (Tuai) being commissioned in 1929.

River conditions can change very quickly, so the data is updated on this website every 15 minutes. Please monitor the conditions regularly before embarking on any water-based activities. Flow data is also available from the Genesis Energy flow phone 07 386 8113 or Free Phone number 0800 435 697 – (0800 4 flows).

If you have questions or comments you can contact our hydrology staff.

Hydrology information for the Waikaremoana Power Scheme:

Supporting pest-free waterways
Supporting pest-free waterways



The Waikaretaheke River flows from Lake Waikaremoana and joins with the Waiau River near Ardkeen.

Kayakers utilise the river throughout the year during recreational release events.

River flows can vary quickly and it is a good idea to check the weather forecast and assess flow conditions on the river before heading out. In some river systems, rainfall in headwater catchments will result in rapid increases in river levels downstream where there may be little rainfall.

Click on the site name for recent flow trends.

Lake levels

Recreational releases