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Wairakei Field
The Wairakei Power Station is a geothermal power station near the Wairakei Geothermal Field in New Zealand. Wairakei lies in the Taupo Volcanic Zone. History The power station was built in 1958, the first of its type (wet steam) in the world, and it is currently owned and operated by Contact Energy. A binary cycle power plant was constructed in 2005 to use lower-temperature steam that had already gone through the main plant. This increased the total capacity of the power station to 181MW. The Wairakei power station is due to be phased out from 2013, replaced by the Te Mihi geothermal power station. The Poihipi Power Station was built in 1996 at a nearby site in the same field. Units Wairakei A station * Unit 1 – 11.2 MW intermediate pressure * Unit 4 – 11.2 MW intermediate pressure * Unit 7 – 11.2 MW low pressure * Unit 8 – 11.2 MW low pressure * Unit 9 – 11.2 MW low pressure * Unit 10 – 11.2 MW low pressure Units 2, 3, 5 and 6 wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Subsidence
Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope movement. Processes that lead to subsidence include dissolution of underlying carbonate rock by groundwater; gradual compaction of sediments; withdrawal of fluid lava from beneath a solidified crust of rock; mining; pumping of subsurface fluids, such as groundwater or petroleum; or warping of the Earth's crust by tectonic forces. Subsidence resulting from tectonic deformation of the crust is known as tectonic subsidence and can create accommodation for sediments to accumulate and eventually lithify into sedimentary rock. Ground subsidence is of global concern to geologists, geotechnical engineers, surveyors, engineers, urban planners, landowners, and the public in general.National Research Council, 1991. ''Mitigating losses from land subsi ... [...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] |
Geothermal Power In New Zealand
Geothermal power in New Zealand is a small but significant part of the energy generation capacity of the country, providing approximately 17% of the country's electricityElectricity in New Zealand 2018 (from the New Zealand Electricity Authority. Accessed 2019-17-06.) with installed capacity of over 900 MW.Geothermal Energy and Electricity Generation (from the New Zealand Energy Efficiency and Conservation Authority website. Accessed 2019-17-06.) New Zealand, like only a small number of other countries w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unison Networks
Unison Networks Limited (Unison) is an electricity distribution and fibre optic network company, based in Hastings, New Zealand. Unison owns and manages the electricity lines network and the fibre optic network in the Hawke's Bay, Rotorua and Taupo regions. The service area covers 12,000 km2. The Unison group also provides electrical, fibre, civil, and vegetation contracting services; manufactures electrical products; and operates an insurance company. Ownership The company is 100% owned by the Hawke's Bay Power Consumers' Trust on behalf of electricity consumers in the Hawke's Bay area. The Trust is made up of five elected Trustees and operates under a Trust Deed. Distribution network The Unison subtransmission and distribution network is supplied from the national grid via Transpower substations. Seven Transpower grid exit points (GXPs) supply the Unison network: Redclyffe, Fernhill, and Whakatu for Napier-Hastings; Wairakei for Taupo; and Rotorua, Owhata, and Takuren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Plenty
The Bay of Plenty ( mi, Te Moana-a-Toi) is a region of New Zealand, situated around a bight of the same name in the northern coast of the North Island. The bight stretches 260 km from the Coromandel Peninsula in the west to Cape Runaway in the east. The Bay of Plenty Region, governed by the Bay of Plenty Regional Council, incorporates several large islands in the bay, in addition to the mainland area. Called ''Te Moana-a-Toi'' (the Sea of Toi) in the Māori language after Toi, an early ancestor, the name 'Bay of Plenty' was bestowed by James Cook in 1769 when he noticed the abundant food supplies at several Māori villages there, in stark contrast to observations he had made earlier in Poverty Bay. History According to local Māori traditions, the Bay of Plenty was the landing point of several migration canoes that brought Māori settlers to New Zealand. These include the ''Mātaatua'', ''Nukutere'', ''Tākitimu'', '' Arawa'' and ''Tainui'' canoes. Many of the de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gisborne Region
Gisborne District or the Gisborne Region (Māori: ''Te Tairāwhiti'' or ''Te Tai Rāwhiti'') is a local government area of northeastern New Zealand. It is governed by Gisborne District Council, a unitary authority (with the combined powers of a district and regional council). It is named after its largest settlement, the city of Gisborne. The region is also commonly referred to as the East Coast. The region is commonly divided into the East Cape and Poverty Bay. It is bounded by mountain ranges to the west, rugged country to the south, and faces east onto the Pacific Ocean. Name and history Prior to the late 19th century, the area was known as Tūranga. However, as the Gisborne town site was laid out in 1870, the name changed to Gisborne, after the Colonial Secretary William Gisborne, and to avoid confusion with the town of Tauranga. The region was formerly known as the ''East Coast'', although the region is often divided into the East Coast proper (or East Cape), north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawke's Bay
Hawke's Bay ( mi, Te Matau-a-Māui) is a local government region on the east coast of New Zealand's North Island. The region's name derives from Hawke Bay, which was named by Captain James Cook in honour of Admiral Edward Hawke. The region is governed by Hawke's Bay Regional Council. Geography The region is situated on the east coast of the North Island. It bears the former name of what is now Hawke Bay, a large semi-circular bay that extends for 100 kilometres from northeast to southwest from Māhia Peninsula to Cape Kidnappers. The Hawke's Bay Region includes the hilly coastal land around the northern and central bay, the floodplains of the Wairoa River in the north, the wide fertile Heretaunga Plains around Hastings in the south, and a hilly interior stretching up into the Kaweka and Ruahine Ranges. The prominent peak Taraponui is located inland. Five major rivers flow to the Hawke's Bay coast. From north to south, they are the Wairoa River, Mohaka River, Tutaeku ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transpower New Zealand Limited
Transpower New Zealand Limited (TPNZ) is the state-owned enterprise responsible for electric power transmission in New Zealand. It performs two major functions in the New Zealand electricity market. As the owner of the National Grid it provides the infrastructure of electric power transmission that allows consumers to have access to generation from a wide range of sources, and enables competition in the wholesale electricity market; as system operator it manages the real-time operation of the grid and the physical operation of the electricity market. Transpower was initially formed as an operating division of the Electricity Corporation of New Zealand (ECNZ) in 1987. In 1994 it was separated from ECNZ and corporatised to become a state-owned enterprise with its own board of directors and ministerial shareholders, the Minister of Finance and the Minister of State-Owned Enterprises. The New Zealand Treasury's Commercial Operations group (formerly the Crown Ownership Monitori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wairakei Geothermal Valley Steam Pipes
Wairakei is a small settlement, and geothermal area a few kilometres north of Taupō, in the centre of the North Island of New Zealand, on the Waikato River. It is part of the Taupō Volcanic Zone and features several natural geysers, hot pools. boiling mud pools, and the Wairakei Power Station, a major geothermal electric power generating station. The station was the second large-scale geothermal facility worldwide, and was commissioned in 1958. It was listed in the book ''70 Wonders Of The Modern World'' published in 2000 by Reader's Digest to record ''The Eventful 20th Century''. The settlement, referred to as Wairakei Village, was constructed to house the workers of both the power station and the neighbouring Aratiatia hydro power station. From 31 October 2022 it had buses to Taupō, Mondays to Fridays. Demographics Statistics New Zealand describes Wairakei Village as a rural settlement, which covers . The settlement is part of the larger Wairakei-Broadlands statistical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Craters Of The Moon (geothermal Site)
Craters of the Moon Thermal Area (or ''Karapiti'' in Māori language) is a region with geothermal activity north of Taupo, New Zealand. It is a part of Wairakei, the largest geothermal field in New Zealand, with a surface area of about 25 km2, which lies in the Taupo Volcanic Zone. The name springs from the many hydrothermal eruption craters, which are in part barren and which have bright colours. Combined with the numerous steam vents, constantly shifting, collapsing and reforming giving the whole area desolate appearance, and the sulphur smell, the whole area has an “unearthly” atmosphere. The craters are a relatively recent feature of the area and appeared as a result of human activity in the region. The site is Crown Land, administered by the Department of Conservation, with help from the ''Craters of the Moon Trust'', a volunteer organisation that provides information for visitors and passive vehicle security. History In 1859 Ferdinand von Hochstetter, an Austria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
