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Tongariro Power Scheme
The Tongariro Power Scheme is a 360 MW hydroelectricity scheme in the central North Island of New Zealand. The scheme is currently operated by electricity generation company Genesis Energy. The scheme takes water from tributaries of the Rangitikei, Whangaehu, Whanganui, and Tongariro rivers, which drain a area covering Ruapehu, Ngauruhoe, Tongariro and the western Kaimanawa Ranges. The water is then sent through a large canal and tunnel system to generate electricity at three hydro power stations, located at Rangipo (120 MW), Tokaanu (240 MW) and Mangaio (2MW). The water is then drained into Lake Taupō where it is stored for further use in the succession of Waikato River power stations. The scheme generates approximately 1350 GWh of electricity annually, and contributes 4 percent of New Zealand's electricity generation. History Plans to realise the potential of electricity generation in the central North Island volcanic plateau date back to the early years of the 20th centu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megawatt
The watt (symbol: W) is the unit of Power (physics), power or radiant flux in the International System of Units, International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantification (science), quantify the rate of Energy transformation, energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish people, Scottish invention, inventor, mechanical engineer, and chemist who improved the Newcomen steam engine, Newcomen engine with his own Watt steam engine, steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one Newton (unit), newton, the rate at which Work (physics), work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potentia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whakapapa River
The Whakapapa River in New Zealand forms from streams which trickle off the Whakapapa skifield of Mount Ruapehu and down the western slopes of the mountain. The river passes near Ōwhango, before finally merging with the Whanganui River just east of Kakahi, about from where it starts, which is in a deep gorge, at the confluence of the Whakapapaiti and Whakapapanui Streams. Before construction of the North Island Main Trunk Railway began in about 1904, most of the valley was a dense podocarp forest. In 1914 logging of the last sizeable west bank section of that bush began, near Oio. Peter McIntyre had a home near Kakahi overlooking the confluence of the Whanganui and Whakapapa rivers, and painted several oil landscapes of the Whakapapa River. After his death, the Whakapapa River undermined the white pumice cliffs where his house was built and claimed the house as its own. Occasionally people kayak a stretch of the river from near Ōwhango () to near Kakahi (). When th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Tihia
Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, Cornwall, England * Mounts, Indiana, a community in Gibson County, Indiana, United States People * Mount (surname) * William L. Mounts (1862–1929), American lawyer and politician Computing and software * Mount (computing), the process of making a file system accessible * Mount (Unix), the utility in Unix-like operating systems which mounts file systems Displays and equipment * Mount, a fixed point for attaching equipment, such as a hardpoint on an airframe * Mounting board, in picture framing * Mount, a hanging scroll for mounting paintings * Mount, to display an item on a heavy backing such as foamcore, e.g.: ** To pin a biological specimen, on a heavy backing in a stretched stable position for ease of dissection or display ** T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pihanga
Pihanga is a andesitic volcanic peak in the North Island Volcanic Plateau, located to the north of Mount Tongariro, between Tongariro and Lake Taupo. Lake Rotoaira lies to the south-west of Pihanga, and the smaller Lake Rotopounamu is situated on the south-western flank of the volcano, near Te Ponanga Saddle. Across the saddle to the west is the volcanic peak of Tihia. Pihanga and Lake Rotopounamu are part of the 5,129ha Pihanga Scenic Reserve, which in 1975 was added to the Tongariro National Park. Pihanga appears to have a large crater, but this is in fact the result of erosion, and the "crater" quickly narrows into a steep gorge. Geology Eruptions from Pihanga last occurred more than 20,000 years ago. The more recent eruptions are consistent with the north-north-east to south-south-west alignment of the present southern Taupo Volcanic Zone rifting. Just to the east is the Poutu Fault Zone. Biology Its slopes are covered in native bush and currently part of a major nature c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand State Highway 47
State Highway 47 (SH 47) is a New Zealand state highway in the central North Island. It provides a link from at National Park to at Tokaanu just west of Turangi. For its entire length, SH 47 is a single carriageway road with one lane in each direction and at-grade intersections and property accesses. There are no significant towns on the route. The New Zealand Transport Agency classifies the section of SH 47 as an arterial route south of the intersection and a primary collector route north of the SH 46 intersection. Route SH 47 travels in a general northeast direction from National Park across the Tongariro volcanic plateau. 9 km from its starting point it reaches the junction of which connects to Whakapapa Village and the ski area on the northern slopes of Mount Ruapehu. A further 14 km north-west is the junction with Lake Rotoaira Road (SH 46), an alternative route to and the Desert Road. SH 47 continues for a further 25 km over the Te Ponanga S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Otamangakau
Lake Otamangakau is a small artificial lake located within Tongariro National Park in the Ruapehu District. Geography Lake Otamangakau is located approximately southwest of Lake Taupo. The man-made reservoir has a size of around and extends over its northern arm in a 45-degree left curve over a length of around and over its eastern arm to the southern tip over a length of around . Its widest point is in the middle part of the lake and extends over a length of around 900 m in a north-west-south-east direction. Koordinaten und Längenbestimmungen wurden mittels Google Earth Pro Version 7.3.3.7786 am 3. Juni 2021 vorgenommen The deepest part of the lake is 12 m. The reservoir is connected to two other reservoirs via two canals, one via the southwestern Otamangakau Canal, which connects Lake Te Whaiau, which in turn carries its waters to Lake Otamangakau, and the other via the Wairehu, which emanates from the eastern arm of the lake Canal with Lake Rotoaira, which is l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Te Whaiau
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand State Highway 46
State Highway 46 (SH 46) is a New Zealand state highway in the central North Island. Route For its entire length SH 46 shares the name Lake Rotoaira Road. It begins at Rangipo from and travels west to meet . This route is commonly used by holidaymakers travelling to the Whakapapa skifield and the Tongariro Crossing. It also forms part of a western bypass of the Desert Road when it can close due to snow. History SH 46 originally was gazetted SH 47A. It became SH 47 when the highway shifted along this designation (and SH 47A revoked) however after a few years SH 47 shifted back to its original (and current) location. For a short time it lost its state highway status until 1997 when the highway was gazetted again, this time as a new designation of SH 46. See also * List of New Zealand state highways This is a list of highways of the New Zealand state highway network and some touring routes. State highways are administered by the NZ Transport Agency, while all other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underground Power Station
An underground power station is a type of hydroelectric power station constructed by excavating the major components (e.g. machine hall, penstocks, and tailrace) from rock, rather than the more common surface-based construction methods. One or more conditions impact whether a power station is constructed underground. The terrain or geology around a dam is taken into consideration, as gorges or steep valleys may not accommodate a surface power station. A power station within bedrock may be less expensive to construct than a surface power station on loose soil. Avalanche-prone valleys often make a surface station unfeasible as well. After World War II, large hydroelectric power stations were placed underground more often in order to protect them from airstrikes. Often underground power stations form part of pumped storage hydroelectricity schemes, whose basic function is to level load: they use cheap or surplus off-peak power to pump water from a lower lake to an upper lake. During p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand State Highway 1
State Highway 1 (SH 1) is the longest and most significant road in the New Zealand road network, running the length of both main islands. It appears on road maps as SH 1 and on road signs as a white number 1 on a red shield, but it has the official designations SH 1N in the North Island, SH 1S in the South Island. SH 1 is long, in the North Island and in the South Island. Since 2010 new roads have reduced the length from . For the majority of its length it is a two-lane single carriageway, with at-grade intersections and property accesses, in both rural and urban areas. These sections have some passing lanes. Around of SH 1 is of motorway or expressway standard : in the North Island and in the South Island. Route North Island (SH 1N) SH 1 starts at Cape Reinga, at the northwestern tip of the Aupouri Peninsula, and since April 2010 has been sealed (mainly with either chipseal or asphalt) for its entire length. From Waitiki Landing south of Cape Reinga, SH 1 trav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desert Road
Te Onetapu, commonly known as the Rangipo Desert, is a barren desert-like environment in New Zealand, located in the Ruapehu District on the North Island Volcanic Plateau; to the east of the three active peaks of Mount Tongariro, Mount Ngauruhoe, and Mount Ruapehu, and to the west of the Kaimanawa Range. The Rangipo Desert receives of rainfall per year, but resembles a desert because of its location on the volcanic plateau adjacently east of Ruapehu, a poor soil quality and drying winds, , nzgeographic.co.nz, Issue 36 (Oct-Dec 1997). Retrieved 28 January 2013. and also due to the mass sterilisation of seeds during a series of violent eruptions, particularly flows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Crater Lake
A volcanic crater lake is a lake in a crater that was formed by explosive activity or a collapse during a volcanic eruption. Formation Lakes in calderas fill large craters formed by the collapse of a volcano during an eruption. Lakes in maars fill medium-sized craters where an eruption deposited debris around a vent. Crater lakes form as the created depression, within the crater rim, is filled by water. The water may come from precipitation, groundwater circulation (often hydrothermal fluids in the case of volcanic craters) or melted ice. Its level rises until an equilibrium is reached between the rates of incoming and outgoing water. Sources of water loss singly or together may include evaporation, subsurface seepage, and, in places, surface leakage or overflow when the lake level reaches the lowest point on its rim. At such a saddle location, the upper portion of the lake is contained only by its adjacent natural volcanic dam; continued leakage through or surface outflow ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
