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Benmore Power Station
Benmore Dam is the largest dam within the Waitaki power scheme, located in the Canterbury Region Canterbury ( mi, Waitaha) 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 f ... 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canterbury Region
Canterbury ( mi, Waitaha) 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 Kaikoura 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 Waitaha/Canterbury has a long history stretching from creation of the greywacke basement rocks that make up the Kā Tiritiri o te Moana/Southern Alps to the arrival of the first humans. This history is linked to the creation of the earth, the so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Turbine
The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today, and can achieve over 95% efficiency. The process of arriving at the modern Francis runner design took from 1848 to approximately 1920. It became known as the Francis turbine around 1920, being named after British-American engineer James B. Francis who in 1848 created a new turbine design. Francis turbines are primarily used for producing electricity. The power output of the electric generators generally ranges from just a few kilowatts up to 1000 MW, though mini-hydro installations may be lower. The best performance is seen when the head height is between . Penstock diameters are between . The speeds of different turbine units range from 70 to 1000 rpm. A wicket gate around the outside of the turbine's rotating runner controls the rate of water flow through the turbine for d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Canterbury, New Zealand
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artist ... [...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, human consumption, 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 dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. 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. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand Electricity Market
The New Zealand electricity market (NZEM) is a decentralised electricity market regulated by the Electricity Industry Participation Code administered by the Electricity Authority (EA). The authority was established in November 2010 to replace the Electricity Commission. Overview Until 1987, New Zealand had a centrally run system of providers of generation, transmission, distribution, and retailing. Reform has since led to the separation of the monopoly elements from the contestable elements to create competitive markets in energy retailing and generation. Regulation has also been imposed on the natural monopolies of transmission and distribution. Currently the market is split into the following areas: Regulation, administration, generation, market clearing, transmission, distribution, metering and retail. The wholesale market for electricity operates under the Electricity Industry Participation Code (EIPC), and is overseen by the market regulator, the Electricity Authorit ... [...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. , 82% of electricity is generated from renewable sources, making New Zealand one of the countries with the lowest carbon dioxide emissions from electricity generation. Electricity demand grew by an average of 2.1% per year from 1974 to 2010 but decreased by 1.2% from 2010 to 2013. The New Zealand electricity market, electricity market is regulated by the Electricity Authority (New Zealand), Electricity Authority. Electricity lines businesses, including Transpower New Zealand, Transpower and the distribution lines companies, are regulated by the Commerce Commission. Control is also exerted by the minister of energy in the New Zealand Cabinet, though the minister for state-owned enterprises and the minister for climate change also have some powers by virtue of their positions and policy influence in the governme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Power Stations In New Zealand
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. Baseload generators are those that run continuously (except for maintenance), and include all geothermal and run-of-the-river hydroelectric plants, which must 'use it or lose it'. Intermediate generators are load-following power plants. Peaking power plants generate only for minutes or hours at a time, during the sharpest peaks in electricity demand. Bioenergy Geothermal Hydroelectric Source: Decommissioned hydroelectric Heritage hydroelectric Fossil-fuel thermal Source: Wind Sources: Solar Grid battery storage Proposed power stations Source: See also *Energy in New Zealand *Electricity sector in New Zealand * List of New Zealand spans *New Zealand electricity market ... [...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] |
Christchurch
Christchurch ( ; mi, Ōtautahi) is the largest city in the South Island of New Zealand and the seat of the Canterbury Region. Christchurch lies on the South Island's east coast, just north of Banks Peninsula on Pegasus Bay. The Avon River / Ōtākaro flows through the centre of the city, with an urban park along its banks. The city's territorial authority population is people, and includes a number of smaller urban areas as well as rural areas. The population of the urban area is people. Christchurch is the second-largest city by urban area population in New Zealand, after Auckland. It is the major urban area of an emerging sub-region known informally as Greater Christchurch. Notable smaller urban areas within this sub-region include Rangiora and Kaiapoi in Waimakariri District, north of the Waimakariri River, and Rolleston and Lincoln in Selwyn District to the south. The first inhabitants migrated to the area sometime between 1000 and 1250 AD. They hunted moa, which led ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohau B
Ohau B is a power station operated by Meridian Energy in the South Island of New Zealand. It is a twin station with Ohau C and is part of the Waitaki hydro scheme which consists of eight power stations operated from a control centre near Twizel.Meridian Energy ''Ohau B & Ohau C'' brochure Water from Lake Ruataniwha flows through Ohau B, then Ohau C and then through to Lake Benmore. See also *Ohau 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. , 82% of electricity is generated from renewable sources, making New Zea ... 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 Canterbury, New Zealand {{NewZealand-powerstat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohau C
Ohau C is a power station operated by Meridian Energy in the South Island of New Zealand. It is a twin station with Ohau B and is part of the Waitaki hydro scheme which consists of eight power stations operated from a control centre near Twizel.Meridian Energy ''Ohau B & Ohau C'' brochure Water from Lake Ruataniwha flows through Ohau B, then Ohau C and then through to Lake Benmore. See also *Ohau A *List of power stations in New Zealand *Electricity sector in New Zealand 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 Canterbury, New Zealand {{NewZealand-powerstation-stub ... [...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] |
