Mangahao Power Station

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Mangahao Power Station
CountryNew Zealand
Coordinates40°34′36″S 175°27′1″E / 40.57667°S 175.45028°E / -40.57667; 175.45028Coordinates: 40°34′36″S 175°27′1″E / 40.57667°S 175.45028°E / -40.57667; 175.45028
Commission dateNovember 1924
Owner(s)Todd Energy, King Country Energy
Thermal power station
Primary fuelHydroelectric
Power generation
Units operational3 (1 x Francis, 2 x Pelton)
Nameplate capacity38 MW (51,000 hp)
External links
CommonsRelated media on Commons

Mangahao Power Station is a hydroelectric power station near the town of Shannon, New Zealand. After being delayed by war, access road construction and foundation testing was started by late 1919 and the station opened in November 1924.[1][2] It makes use of Mangahao River, through a series of tunnels and pipelines totaling 4.8 kilometers, in the Tararua Ranges. As of 2012, it is jointly owned and operated by Todd Energy and King Country Energy.[1][2]

When commissioned, Mangahao Power Station was the main power station serving the lower North Island, with transmission lines connecting Mangahao with Wellington, Palmerston North, Whanganui, Masterton, Napier and Hastings. The power station was connected through to the Waikaremoana hydro scheme in 1929 and through to Arapuni Dam in 1934, forming the basis of the North Island transmission grid.[1]

The North Island's Mangahao hydroelectric power station


  1. ^ a b c "Mangahao Power Station". IPENZ Engineering Heritage. Retrieved 2012-07-18.
  2. ^ a b "Mangahao Hydro". Todd Energy. Retrieved 2008-09-26.

Further reading[edit]

  • Martin, John E, ed. (1991). People, Power and Power Stations: Electric Power Generation in New Zealand 1880 - 1990. Wellington: Bridget Williams Books Ltd and Electricity Corporation of New Zealand. pp. 316 pages. ISBN 0-908912-16-1.
  • Reilly, Helen (2008). Connecting the Country: New Zealand’s National Grid 1886 - 2007. Wellington: Steele Roberts. pp. 376 pages. ISBN 978-1-877448-40-9.

External links[edit]