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Dams In New Zealand
Many of the largest dams and reservoirs in New Zealand have been developed principally to produce hydroelectricity. Other uses include irrigation and municipal water supply. Hydro-electric dams The main river systems comprising a series of dams and powerhouses are situated on the following rivers: :The Waikato River :The Waitaki River :The Clutha River Other schemes are standalone developments associated with specific sites. Tongariro Power Scheme The Tongariro Power Scheme (1,400 GWh) diverts water from the south side of Mount Ruapehu and the west and north sides of Tongariro into Lake Taupō, and thus eventually into the Waikato River. *Rangipo (cavern) (120 MW) *Tokaanu (240 MW) * Moawhango Dam The Waikato The hydro stations, starting from Lake Taupō, are (capacity in MW and nominal annual energy output in GWh): * Aratiatia (84 MW) (331 GWh) * Ohakuri (112 MW) (400 GWh) * Atiamuri (84 MW) (305 GWh) *Whakamaru (100 MW) (486 GWh) *Maraetai (360 MW) (855 GWh) *Waipapa (51 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectricity
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other Renewable energy, renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of Low-carbon power, low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arapuni Power Station
Arapuni Power Station is a hydroelectric power station on the Waikato River, in the North Island of New Zealand. It is owned and operated by Mercury Energy, and is the seventh and penultimate hydroelectric power station on the Waikato River. It is also the oldest currently generating, the first government-built, and the largest capacity single hydroelectric power station on the Waikato River. The two power houses that make up the Maraetai Power Station have a larger combined capacity however. Arapuni, due to its proximity to Hamilton, plays an important part in voltage support and frequency keeping in the city and the wider Waikato region. Even though it is 80 years old, continuous improvement and refurbishment of the station's generation equipment ensures Arapuni remains efficient. The powerhouse and dam at Arapuni are under protection of the Historic Places Trust, becoming Category I Historic Places in November 1987 and August 1991 respectively. It is one of the few generatin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohau Canal
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Ohau or Ōhau may refer to the following in New Zealand: * Ben Ohau, a mountain in the South Island * Ben Ohau Range * Lake Ōhau * Lake Ohau Alpine Village * Ōhau River (Canterbury) * Ōhau River (Manawatū-Whanganui) * Ohau (skifield) * Ohau A power station * Ohau B power station * Ohau C power station * Ohau railway station (former) in the settlement of Ohau * Ōhau, semi-rural community in the Manawatu-Wanganui region * Ohau Island in the Three Kings Islands 3 is a number, numeral, and glyph. 3, three, or III may also refer to: * AD 3, the third year of the AD era * 3 BC, the third year before the AD era * March, the third month Books * '' Three of Them'' (Russian: ', literally, "three"), a 190 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pukaki Canal '', the name used by three ships of the Royal New Zealand Navy
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Pukaki was an 18th-century chief of the Arawa iwi of New Zealand. His portrait appears on the New Zealand 20 cent coin minted from 1990 to 2008. The name has been used for several New Zealand items: *Pukaki, one of the volcanic cones of the Auckland volcanic field *Lake Pukaki, a lake in Canterbury, New Zealand * Pukaki River, a river in Canterbury *''HMNZS Pukaki ''HMNZS Pukaki'' is a name which has been used by three ships of the Royal New Zealand Navy The Royal New Zealand Navy (RNZN; mi, Te Taua Moana o Aotearoa, , Sea Warriors of New Zealand) is the maritime arm of the New Zealand Defence Force. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tekapo Canal
{{disambiguation * Tekapo River, flows occasionally through the Mackenzie Basin, Canterbury, in New Zealand's South Island, * Lake Tekapo (town), small town (township) located at the southern end of the lake of the same name in the inland South Island of New Zealand. * Lake Tekapo __NOTOC__ Lake Tekapo ( mi, Takapō) is the second-largest of three roughly parallel lakes running north–south along the northern edge of the Mackenzie Basin in the South Island of New Zealand (the others are Lake Pukaki and Lake Ohau). ..., the second-largest of three roughly parallel lakes running north–south along the northern edge of the Mackenzie Basin in the South Island of New Zealand * Lake Tekapo Airport, Non-Certificated Airport 1.5 NM (2.8 km; 1.7 mi) west of Lake Tekapo township in the Mackenzie District of the South Island in New Zealand * Tekapo Ridge, crescent-shaped chain of low peaks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Canal
A Power canal refers to a canal used for hydraulic power generation, rather than for transport of watercraft. The power canal was a major factor in the Industrial revolution in New England in the 19th century. Most early power canals were mill races used mechanically to transfer power directly from falling water to machinery in mill buildings. Later, the hydraulic power generated electricity locally for the same mill factories. These power canals were often filled in as electricity (transported by power lines) replaced the need for local water power, and road transport needs or city expansion needs reclaimed the land. Some hydraulic power canals were transformed into local electric generators, but most were closed. Remains of power canals can be seen in old mill towns and are often protected as historical structures today. United States California * California Powder Works (1864-1914) Maine * Cumberland and Oxford Canal (1871-1905) was originally a transport canal from 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Tekapo
__NOTOC__ Lake Tekapo ( mi, Takapō) is the second-largest of three roughly parallel lakes running north–south along the northern edge of the Mackenzie Basin in the South Island of New Zealand (the others are Lake Pukaki and Lake Ohau). It covers an area of , and is at an altitude of above sea level. The lake is fed at its northern end by both the braided Godley River and Macauley river, which have their sources in the Southern Alps to the north. The snow melt from the Southern Alps is tinged with a light turquoise colour from the glacial silt. This gives Lake Tekapo its distinctive colour. To the east of Lake Tekapo lies the Two Thumb Range with Mount Toby (2222m); Braun Elwert Peak (2086m); Dobson Peak (2095m) and Mount Maude (1797m) amongst the mountains over looking Lake Tekapo. On the western side of Lake Tekapo. Mount John (1031m) is closest to the town with Lake Alexandrina further north and Mistake Peak (1931m) sitting towards the head of the lake. Cowans Hill ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Pukaki
Lake Pukaki is the largest of three roughly parallel alpine lakes running north–south along the northern edge of the Mackenzie Basin on New Zealand's South Island. The others are Lakes Tekapo and Ohau. All three lakes were formed when the terminal moraines of receding glaciers blocked their respective valleys, forming moraine-dammed lakes. The Alps2Ocean mountain bike trail follows the edge of Lake Pukaki for part of its length. Geography The glacial feed to the lakes gives them a distinctive blue colour, created by glacial flour, the extremely finely ground rock particles from the glaciers. Lake Pukaki covers an area of 178.7 km², and the surface elevation of the lake normally ranges from 518.2 to 532 metres above sea level. The lake is fed at its northern end by the braided Tasman River, which has its source in the Tasman and Hooker Glaciers, close to Aoraki / Mount Cook. To the west of Lake Pukaki lies the Ben Ohau mountain range with Ben Dhu (1607m) and Betty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Benmore
Lake Benmore is New Zealand's largest artificial lake. Located in the South Island of New Zealand and part of the Waitaki River, it was created in the 1960s by construction of Benmore Dam. Characteristics The lake has an area of about 75 km² and a maximum depth of 90 meters. The lake consists of two arms: the Haldon arm, fed mainly by the Tekapo, Pukaki and Twizel rivers, and the Ohau Canal; and the Ahuriri Arm, fed mainly by the Ahuriri River. Immediately downstream is Lake Aviemore. As of 2020, Land Air Water Aotearoa described the water quality as "good" and the quality of ecological conditions as "high". The lake is split between the Mackenzie, Waimate, and Waitaki districts, within the southern portion of the Canterbury Region. Construction The lake is the reservoir of Benmore Dam, New Zealand's largest earth dam, which was created as part of the Waitaki hydroelectricity power scheme. Construction of Benmore Dam was approved in 1957 and the lake was filled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benmore Dam
Benmore Dam is the largest dam within the Waitaki power scheme, located in the Canterbury Region of New Zealand's South Island. There are eight other power stations in the Waitaki Power Scheme. The dam is the largest earth-fill (zoned embankment dam) water-retaining structure in New Zealand. Its core is low permeability clay material, supported by two massive shoulders of river gravel. Lake Benmore has a volume of 1.25 billion cubic metres, about 1.5 times as much water as Wellington Harbour. The dam's spillway can cope with over 6,000 cubic metres of water per second, about 20 times the mean river flow. Benmore Power Station With a generating capacity of , Benmore Power Station is the second largest hydro station in New Zealand behind Manapouri, and the largest dam in the country. The $62 million construction of the dam and hydroelectric station began in 1958. It was commissioned in 1965, and officially opened by Prime Minister Sir Keith Holyoake on 15 May ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Aviemore
Lake Aviemore or Mahi Tikumu is a man-made lake in New Zealand's South Island, part of the Waitaki hydroelectric scheme. Immediately upstream is Lake Benmore and downstream Lake Waitaki. Aviemore lies on both sides of the border between the Waimate and Waitaki districts. It is part of the traditional boundary of the Canterbury and Otago regions, although, officially, the border has been moved southward to include the lake, as well as the entire northwestern portion of the Waitaki District in the Canterbury Region. The Otematata settlement situated on State Highway 83 is just west of the lake, and was built in 1958 as a base for the construction of the Aviemore and Benmore Dams. Closer to the lake the old village Wharekuri which encompasses Aviemore was populous in the 1860s. The Aviemore Dam, completed in 1968, is the newest of the three dams on the Waitaki river. It is made out of both earth and concrete. By continuing the sinuous course of the river after the lake, one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviemore Dam
The Aviemore Dam is a dam on the Waitaki River in New Zealand. The dam is a composite dam, with an embankment section, and a concrete section. Built in the 1960s (and completed in 1968) it impounds Lake Aviemore. Aviemore Dam is owned and operated by Meridian Energy, and its primary purpose is to power a hydroelectric power plant. It is a part of the Waitaki River Hydroelectric System, a scheme which supplies 30% of New Zealand's considerable amount of hydropower. Characteristics Composite Dam structure The founding conditions of the dam differ on either side of the Waitangi Fault, hence different dam construction types are used. On the northern side of the valley (Canterbury side), the dam is founded on greywacke rock, and consists of a -long concrete structure. On the southern side of the valley (Otago side), the dam is founded on tertiary sedimentary rock, an consists of a long zoned embankment (earth) dam. During the construction of the concrete section, low-heat cement w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
