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Benmore Power Station
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. Construction of the dam and hydroelectric station began in 1958 at a cost of $62 million. It was commissioned in 1965, and was officially opened by Prime Minister Sir Keith Holyoake ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canterbury Region
Canterbury () is a region of New Zealand, located in the central-eastern South Island. The region covers an area of , making it the largest region in the country by area. It is home to a population of The region in its current form was established in 1989 during nationwide local government reforms. The Kaikōura District joined the region in 1992 following the abolition of the Nelson-Marlborough Regional Council. Christchurch, the South Island's largest city and the country's second-largest urban area, is the seat of the region and home to percent of the region's population. Other major towns and cities include Timaru, Ashburton, Rangiora and Rolleston. History Natural history The land, water, flora, and fauna of Canterbury has a long history, stretching from creation of the greywacke basement rocks that make up the Southern Alps to the arrival of the first humans. This history is linked to the solidification and development of tectonic plates, the development of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twizel
Twizel () is the largest town in the Mackenzie District, in the Canterbury Region of the South Island of New Zealand. The town was founded in 1968 to house construction workers on the Upper Waitaki Hydroelectric Scheme. Today, Twizel is a service and tourist town for visitors to the area. It has a resident population of during the summer, holidaymakers nearly triple the town's population. Nearby Lake Ruataniwha supports rowing, sailing and water skiing. Twizel is 37 km (29 minutes drive) east of Lake Ōhau village, 30 km (20 minutes drive) north of Omarama and 60 km (42 minutes drive) south of Lake Tekapo. History Hydro town The present town was built in 1968 by the Ministry of Works and Development as a greenfields project to house workers constructing the Upper Waitaki hydroelectricity scheme. The name comes from the nearby Twizel River, in turn named for Twizel Bridge in Northumberland by John Turnbull Thomson, Chief Surveyor of Otago in the mid-19th c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams Completed In 1965
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, drinking water, human consumption, Industrial water, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as Dike (construction), dikes) are used to manage or prevent water flow into specific land regions. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. Ancient dams were built in Mesopotamia and the Middle East for water control. The earliest known dam is the Jawa Dam (Jorda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electricity Sector In New Zealand
The electricity sector in New Zealand uses mainly renewable energy, such as Hydroelectricity, hydropower, geothermal energy, geothermal power and increasingly wind energy. As of 2021, the country generated 81.2% of its electricity from renewable sources. The strategy of electrification is being pursued to enhance the penetration of renewable energy sources and to reduce Greenhouse gas emissions, greenhouse gas (GHG) emissions across all sectors of the economy. In 2021, electricity consumption reached 40 terawatt-hours (TW⋅h), representing a 0.2% increase compared to the consumption levels in 2010. The 2011–2021 Energy Strategy of New Zealand aims for a 90% share of Renewable energy, renewable electricity by 2025. Following this, the government raised its ambition by setting a goal of achieving 100% renewable electricity by 2030. The Ministry of Business, Innovation and Employment, Ministry of Business, Innovation, and Employment in New Zealand monitors several key enti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Power Stations In New Zealand
A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, but lists are frequently written down on paper, or maintained electronically. Lists are "most frequently a tool", and "one does not ''read'' but only ''uses'' a list: one looks up the relevant information in it, but usually does not need to deal with it as a whole".Lucie Doležalová,The Potential and Limitations of Studying Lists, in Lucie Doležalová, ed., ''The Charm of a List: From the Sumerians to Computerised Data Processing'' (2009). Purpose It has been observed that, with a few exceptions, "the scholarship on lists remains fragmented". David Wallechinsky, a co-author of ''The Book of Lists'', described the attraction of lists as being "because we live in an era of overstimulation, especially in terms of information, and lists help us ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christchurch
Christchurch (; ) is the largest city in the South Island and the List of cities in New Zealand, second-largest city by urban area population in New Zealand. Christchurch has an urban population of , and a metropolitan population of over half a million. It is located in the Canterbury Region, near the centre of the east coast of the South Island, east of the Canterbury Plains. It is located near the southern end of Pegasus Bay, and is bounded to the east by the Pacific Ocean and to the south by the ancient volcanic complex of the Banks Peninsula. The Avon River / Ōtākaro, Avon River (Ōtākaro) winds through the centre of the city, with Hagley Park, Christchurch, a large urban park along its banks. With the exception of the Port Hills, it is a relatively flat city, on an average around above sea level. Christchurch has a reputation for being an English New Zealanders, English city, with its architectural identity and nickname the 'Garden City' due to similarities with garde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ōhau B
Ōhau B is a power station operated by Meridian Energy in the South Island of New Zealand. It is a twin station with Ōhau C and is part of the Waitaki hydro scheme which consists of eight power stations operated from a control centre near Twizel.Meridian Energy ''Ōhau B & Ōhau C'' brochure Water from Lake Ruataniwha flows through Ōhau B, then Ōhau C and then through to Lake Benmore. See also * Ōhau A *List of power stations in New Zealand *Electricity sector in New Zealand The electricity sector in New Zealand uses mainly renewable energy, such as Hydroelectricity, hydropower, geothermal energy, geothermal power and increasingly wind energy. As of 2021, the country generated 81.2% of its electricity from renewabl ... References Further reading * * External links Meridian Energy- power station information Energy infrastructure completed in 1984 Hydroelectric power stations in New Zealand Buildings and structures in the Canterbury Region {{NewZealand- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ōhau C
Ōhau C is a power station operated by Meridian Energy in the South Island of New Zealand. It is a twin station with Ōhau B and is part of the Waitaki hydro scheme which consists of eight power stations operated from a control centre near Twizel.Meridian Energy ''Ōhau B & Ōhau C'' brochure Water from Lake Ruataniwha flows through Ōhau B, then Ōhau C and then through to Lake Benmore. See also * Ōhau A *List of power stations in New Zealand *Electricity sector in New Zealand The electricity sector in New Zealand uses mainly renewable energy, such as Hydroelectricity, hydropower, geothermal energy, geothermal power and increasingly wind energy. As of 2021, the country generated 81.2% of its electricity from renewabl ... References Further reading * * External links Meridian Energy- power station information Energy infrastructure completed in 1985 Hydroelectric power stations in New Zealand Buildings and structures in the Canterbury Region {{NewZealan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Grid (New Zealand)
The National Grid is the nationwide system of electric power transmission in New Zealand. The Electrical grid, grid is owned, operated and maintained by Transpower New Zealand, a List of state-owned enterprises of New Zealand, state-owned enterprise, although some lines are owned by local distribution companies and leased to Transpower. In total, the national grid contains of high-voltage lines and 178 Electrical substation, substations. Much of New Zealand’s electricity generation is Hydroelectric power in New Zealand, hydroelectric, the majority of which is from power stations on lakes and rivers in the lower half of the South Island, while most of the electricity demand is in the North Island, in particular, the Auckland region. Consequently, large amounts of electricity need to be transmitted long distances from power stations to electricity users, including transmission across Cook Strait through the HVDC Inter-Island link. Investments in new transmission are regulated by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spillway
A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that water does not damage parts of the structure not designed to convey water. Spillways can include floodgates and fuse plugs to regulate water flow and reservoir level. Such features enable a spillway to regulate downstream flow—by releasing water in a controlled manner before the reservoir is full, operators can prevent an unacceptably large release later. Other uses of the term "spillway" include bypasses of dams and outlets of channels used during high water, and outlet channels carved through natural dams such as moraines. Water normally flows over a spillway only during flood periods, when the reservoir has reached its capacity and water continues entering faster than it can be released. In contrast, an intake tower is a structure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
