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Radyr Hydro Scheme
Radyr Hydro Scheme is a 400kW small-scale Hydroelectricity, hydroelectric station located in Radyr, Cardiff, Wales. The scheme makes use of the roughly 3.5m height difference created by Radyr Weir to push water through two , Archimedes screw turbines. The scheme was constructed in 2015 by Dawnus, being designed by Renewables First and operated by Cardiff Council. During construction a temporary fish ladder was installed as construction work was likely to coincide with the peak of the upstream Fish migration, migration of salmon. Cardiff Council built the scheme to supply renewable electricity to 550 homes as part of a commitment to lower carbon emissions and help Cardiff become a "one planet city" by 2050. References {{coord, 51.5194, -3.2538, type:landmark_region:GB, display=title Hydroelectric power stations in Wales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radyr Weir Hydro Scheme (geograph 5112329)
Radyr ( cy, Radur) is an outer suburb of Cardiff, about northwest of Cardiff city centre. Radyr is part of Radyr and Morganstown Community (Wales), Community, for which the United Kingdom Census 2011, 2011 Census recorded a population of 6,417. Morganstown is north of Radyr, on the other side of the M4 Motorway. Neighbouring communities are Whitchurch, Cardiff, Whitchurch to the east on the opposite bank of the River Taff, Pentyrch to the west with St Fagans and Llandaff to the south. History Stone Age until the Norman Conquest Evidence of Prehistoric Britain#Palaeolithic, Stone Age occupation of the Lesser Garth Cave near Morganstown was discovered in 1912 and included worked flints. In 1916 excavation of a mound of in #Radyr Woods Nature Area, Radyr Woods revealed charcoal and British Iron Age, Iron Age pottery. Radyr developed after the Norman invasion of Wales at the start of the 12th century and formed part of the Welsh Lordship or cantref of Miskin under the Lordship of ... [...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] |
Radyr
Radyr ( cy, Radur) is an outer suburb of Cardiff, about northwest of Cardiff city centre. Radyr is part of Radyr and Morganstown Community, for which the 2011 Census recorded a population of 6,417. Morganstown is north of Radyr, on the other side of the M4 Motorway. Neighbouring communities are Whitchurch to the east on the opposite bank of the River Taff, Pentyrch to the west with St Fagans and Llandaff to the south. History Stone Age until the Norman Conquest Evidence of Stone Age occupation of the Lesser Garth Cave near Morganstown was discovered in 1912 and included worked flints. In 1916 excavation of a mound of in Radyr Woods revealed charcoal and Iron Age pottery. Radyr developed after the Norman invasion of Wales at the start of the 12th century and formed part of the Welsh Lordship or cantref of Miskin under the Lordship of Glamorgan created by the Norman King, William Rufus, in 1093. Origin of the name Hints about the derivation of the name ''Radyr'' can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardiff
Cardiff (; cy, Caerdydd ) is the capital and largest city of Wales. It forms a principal area, officially known as the City and County of Cardiff ( cy, Dinas a Sir Caerdydd, links=no), and the city is the eleventh-largest in the United Kingdom. Located in the south-east of Wales and in the Cardiff Capital Region, Cardiff is the county town of the historic county of Glamorgan and in 1974–1996 of South Glamorgan. It belongs to the Eurocities network of the largest European cities. A small town until the early 19th century, its prominence as a port for coal when mining began in the region helped its expansion. In 1905, it was ranked as a city and in 1955 proclaimed capital of Wales. Cardiff Built-up Area covers a larger area outside the county boundary, including the towns of Dinas Powys and Penarth. Cardiff is the main commercial centre of Wales as well as the base for the Senedd. At the 2021 census, the unitary authority area population was put at 362,400. The popula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radyr Weir
Radyr ( cy, Radur) is an outer suburb of Cardiff, about northwest of Cardiff city centre. Radyr is part of Radyr and Morganstown Community, for which the 2011 Census recorded a population of 6,417. Morganstown is north of Radyr, on the other side of the M4 Motorway. Neighbouring communities are Whitchurch to the east on the opposite bank of the River Taff, Pentyrch to the west with St Fagans and Llandaff to the south. History Stone Age until the Norman Conquest Evidence of Stone Age occupation of the Lesser Garth Cave near Morganstown was discovered in 1912 and included worked flints. In 1916 excavation of a mound of in Radyr Woods revealed charcoal and Iron Age pottery. Radyr developed after the Norman invasion of Wales at the start of the 12th century and formed part of the Welsh Lordship or cantref of Miskin under the Lordship of Glamorgan created by the Norman King, William Rufus, in 1093. Origin of the name Hints about the derivation of the name ''Radyr'' can be foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screw Turbine
A screw and a bolt (see '' Differentiation between bolt and screw'' below) are similar types of fastener typically made of metal and characterized by a helical ridge, called a ''male thread'' (external thread). Screws and bolts are used to fasten materials by the engagement of the screw thread with a similar ''female thread'' (internal thread) in a matching part. Screws are often self-threading (also known as self-tapping) where the thread cuts into the material when the screw is turned, creating an internal thread that helps pull fastened materials together and prevents pull-out. There are many screws for a variety of materials; materials commonly fastened by screws include wood, sheet metal, and plastic. Explanation A screw is a combination of simple machines: it is, in essence, an inclined plane wrapped around a central shaft, but the inclined plane (thread) also comes to a sharp edge around the outside, which acts as a wedge as it pushes into the fastened material, and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dawnus
Dawnus was a British construction company. Established in 2001 the company grew rapidly in the early 2000s but collapsed into administration in 2019. The company had operations in the United Kingdom and West Africa. History Dawnus was founded as a contractor in 2001 and had its headquarters at Swansea, Wales. The company name is Welsh for "gifted". Its turnover grew rapidly, reaching £2 million in 2002, £8 million in 2003, £16.5 million in 2004, £31 million in 2005, £43 million in 2006 and £64 million in 2007. Afterwards turnover stabilised at around £60-70 million. Changes in its board of directors led to further growth with the company achieving a turnover of £135 million in 2011, peaking at £176 million in 2012. During this period the company was named the ''South Wales Evening Post'' Business of the Year and appeared in the ''Sunday Times'' Profit Track 100. In 2014 the company stated that almost half of its work was carried out overseas, through its subsidiary Daw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardiff Council
Cardiff Council, formally the County Council of the City and County of Cardiff ( cy, Cyngor Sir Dinas a Sir Caerdydd) is the governing body for Cardiff, one of the Principal Areas of Wales. The principal area and its council were established in 1996 to replace the previous Cardiff City Council which had been a lower-tier authority within South Glamorgan. Cardiff Council consists of 79 councillors, representing 28 electoral wards. Labour has held a majority of the seats on the council since 2012. The last election was in May 2022 and the next election is due in 2027. History Municipal life in Cardiff dates back to the 12th century, when Cardiff was granted borough status by the Earls of Gloucester. The offices of the mayor, aldermen, and common councillors developed during the Middle Ages. When elected county councils were established in 1889 under the Local Government Act 1888, Cardiff was considered large enough to run its own services and so it became a county borough, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Migration
Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousands of kilometres. Such migrations are usually done for better feeding or to reproduce, but in other cases the reasons are unclear. Fish migrations involve movements of schools of fish on a scale and duration larger than those arising during normal daily activities. Some particular types of migration are ''anadromous'', in which adult fish live in the sea and migrate into fresh water to spawn; and ''catadromous'', in which adult fish live in fresh water and migrate into salt water to spawn. Marine forage fish often make large migrations between their spawning, feeding and nursery grounds. Movements are associated with ocean currents and with the availability of food in different areas at different times of year. The migratory movements m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Emissions
Greenhouse gas emissions from human activities strengthen the greenhouse effect, contributing to climate change. Most is carbon dioxide from burning fossil fuels: coal, oil, and natural gas. The largest emitters include coal in China and large oil and gas companies, many state-owned by OPEC and Russia. Human-caused emissions have increased atmospheric carbon dioxide by about 50% over pre-industrial levels. The growing levels of emissions have varied, but it was consistent among all greenhouse gases (GHG). Emissions in the 2010s averaged 56 billion tons a year, higher than ever before. Electricity generation and transport are major emitters; the largest single source, according to the United States Environmental Protection Agency, is transportation, accounting for 27% of all USA greenhouse gas emissions. Deforestation and other changes in land use also emit carbon dioxide and methane. The largest source of anthropogenic methane emissions is agriculture, closely followed by g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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