Maraetai Power Station
Dam in near Mangakino, Waikato / From Wikipedia, the free encyclopedia
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Maraetai Power Station is a hydroelectric power station on the Waikato River, in the North Island of New Zealand. It is the fifth of the eight hydroelectric power stations on the Waikato River, and at 360 MW, is the largest hydroelectric station on the Waikato.
Quick Facts Country, Location ...
Maraetai Power Station | |
---|---|
Country | New Zealand |
Location | near Mangakino, Waikato |
Coordinates | 38°21′9″S 175°44′38″E |
Status | Operational |
Construction began | 1946 (1946) |
Opening date | September 1953 (September 1953) |
Owner(s) | Mercury Energy |
Dam and spillways | |
Type of dam | Arch dam |
Impounds | Waikato River |
Height | 87 m (285 ft) |
Length | 133 m (436 ft) |
Width (crest) | 11 m (36 ft) |
Width (base) | 15.2 m (50 ft) |
Spillways | 1 |
Reservoir | |
Creates | Lake Maraetai |
Surface area | 4.1 km2 (1.6 sq mi) |
Commission date | September 1953 (Maraetai I) February 1971 (Maraetai II) |
Type | Conventional |
Hydraulic head | 61 m (200 ft) |
Turbines | 10 × Francis |
Installed capacity | 360 MW |
Annual generation | 885 GWh |
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The station has two powerhouses - Maraetai I powerhouse is directly in front of the Maraetai Dam, while Maraetai II powerhouse is located 550 metres (1,800 ft) downstream of Maraetai I. Although both are completely separate, both powerhouses are operated as one power station.
Maraetai is owned and operated by Mercury Energy.