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Hydroelectric power in New Zealand has been a part of the country's energy system for over 100 years and continues to provide more than half of the country's electricity needs. Hydroelectricity is the primary source of renewable energy in New Zealand. Power is generated the most in the South Island and is used most in the North Island. [1]
New Zealand Energy is a New Zealand electricity generation energy retailer company, servicing the Nelson and Tasman Regions of the country. [1]The company is based in Motueka, and generates their renewable hydro and solar electricity locally within the Nelson and Tasman Regions by operating small hydroelectric power stations in Haast, Fox, Ōpunake and Raetihi.
These four together produce about 90% of New Zealand's electricity. Meridian Energy, Genesis Energy and Mercury Energy are 51% majority owned by the New Zealand government, while Contact is a 100% publicly traded company. An important feature of the New Zealand market is that all the major generators also own retailing arms.
People, Power and Power Stations: Electric Power Generation in New Zealand 1880–1998 (Second ed.). Wellington: Bridget Williams Books Ltd and Electricity Corporation of New Zealand. pp. 356 pages. ISBN 0-908912-98-6. Reilly, Helen (2008). Connecting the Country: New Zealand's National Grid 1886–2007. Wellington: Steele Roberts.
Graph of New Zealand electricity generation capacity by year. This is a list of power stations in New Zealand. The list is not exhaustive – only power stations over 0.5 MW and significant power stations below 0.5 MW are listed. Power plants in New Zealand have different generating roles – for baseload, intermediate or peaking.
The backbone of New Zealand's national grid is the network of 220 kV transmission lines in each of the North and South Islands, which links the major power stations and the country's major cities. Supplementing this are 110 kV, 66 kV and 50 kV transmission lines, which supply provincial towns and cities with electricity from the 220 kV grid ...
The power house is in a cavern, while two tailrace tunnels take the water from the power house 10 km (6 mi) to Deep Cove and the sea. The Manapouri Control Structure (Mararoa dam) downstream from the original outlet of Lake Manapouri controls the lake level, and feeds water from the Mararoa river back up the river into the Lake.
Aratiatia Power Station is a hydroelectric power station on the Waikato River, in the North Island of New Zealand. It is the first hydroelectric power station on the Waikato River, and is located 13 kilometres (8.1 mi) downstream of Lake Taupō. Aratiatia is owned and operated by Mercury Energy. [1] [2]