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Powerline River Crossings In The United Kingdom
Powerline river crossings comprise both overhead lines and cable tunnels beneath rivers and estuaries. Overhead power lines are supported on towers (called pylons in the UK) which are usually significantly taller than overland pylons and are more widely spaced to cross the river in a single span. Tall pylons ensure that the electricity cables which they support provide an adequate safety clearance for river traffic. Overhead crossings The tallest and longest overhead power line river crossings in the United Kingdom are: The tallest electricity pylons in the UK are those of the 400 kV Thames Crossing, at West Thurrock, which are 190 m (630 ft) high. These were constructed by BICC in 1965. The cables stretch 1300 m (4,500 ft) across the River Thames and have a minimum clearance of 76 m (250 ft). There are two 400 kV circuits that connect Littlebrook substation on the south bank to West Thurrock substation on the north side. The longest powerline riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Power Line
An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy across large distances. It consists of one or more uninsulated electrical cables (commonly multiples of three for three-phase power) suspended by towers or poles. Since most of the insulation is provided by the surrounding air, overhead power lines are generally the least costly method of power transmission for large quantities of electric energy. Construction Towers for support of the lines are made of wood either grown or laminated, steel or aluminum (either lattice structures or tubular poles), concrete, and occasionally reinforced plastics. The bare wire conductors on the line are generally made of aluminum (either plain or reinforced with steel or composite materials such as carbon and glass fiber), though some copper wires are used in medium-voltage distribution and low-voltage connections to customer premises. A major goal of overhead power line d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dartford Cable Tunnel
The Dartford Cable Tunnel is a 2.4 km utility tunnel beneath the Thames, upstream of the Dartford Crossing. With a diameter of ~, it carries a 400 kV National Grid electrical transmission cable. It is accessible by foot as a crossing of the Thames, but by authorised personnel only. It was built in 2003–04 at a cost of £11 million (equivalent to £ million in ). See also * 400 kV Thames Crossing * * |
Energy In The United Kingdom
Energy in the United Kingdom came mostly from fossil fuels in 2021. Total energy consumption in the United Kingdom was 142.0milliontonnes of oil equivalent (1,651TWh) in 2019. In 2014, the UK had an energy consumption ''per capita'' of 2.78tonnes of oil equivalent (32.3MWh) compared to a world average of 1.92tonnes of oil equivalent (22.3 MWh). Demand for electricity in 2014 was 34.42 GW on average (301.7TWh over the year) coming from a total electricity generation of 335.0TWh. Successive UK governments have outlined numerous commitments to reduce carbon dioxide emissions. One such announcement was the Low Carbon Transition Plan launched by the Brown ministry in July 2009, which aimed to generate 30% electricity from renewable sources, and 40% from low carbon content fuels by 2020. Notably, the UK is one of the best sites in Europe for wind energy, and wind power production is its fastest growing supply. Wind power contributed almost 21% of UK electricity generation in 2019. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In The United Kingdom
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 artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Powerline River Crossings
Powerline may refer to: Technology * Overhead power line, used for electric power transmission * Power-line communication, a computer networking technology * Powerline, a status line plugin for vim and other application; see Private Use Areas Music and media * ''Powerline'' (magazine), an American music magazine and website * Power Line, a political blog * "Power Lines", a 2016 single by TIGRESS * "Power Lines", a 2012 song by Reks from '' Straight, No Chaser'' * Powerline, a fictional singer in the ''A Goofy Movie ''A Goofy Movie'' is a 1995 American animated musical comedy-adventure film produced by Disney MovieToons and Walt Disney Television Animation. Directed by Kevin Lima, the film is based on The Disney Afternoon television series '' Goof Tro ...'' musical Sport * Powerlines F.C., South African soccer club {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Severn-Wye Cable Tunnel
The Severn-Wye Cable Tunnel, also known as the Severn Cable Tunnel, carries high-voltage (400 kV) electricity transmission lines beneath the estuaries of the River Severn and River Wye between Newhouse (Mathern), Monmouthshire and Aust, South Gloucestershire. History To exploit the generating capacity of new power stations being built in the late 1960s at Pembroke (2,000 MW) and Aberthaw ('A' 600 MW, 'B' 1,400 MW), the Central Electricity Generating Board (CEGB) planned to construct 400 kV supergrid lines through South Wales and Gloucestershire to National Grid connection points at Gloucester and Melksham, Wiltshire. The CEGB intended the line to Melksham substation to cross the River Severn at Sharpness using overhead cables. A public inquiry was held in 1967 and objections were raised by the Council for the Preservation of Rural England and several District and Parish Councils. The principal objection was to the impact of the power lines on the scenery of the Cotswolds and of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fawley Tunnel
Fawley Tunnel is a diameter, long tunnel under Southampton Water between Fawley Power Station and Chilling near Warsash. It was constructed between 1962 and 1965 to carry two 400 kV circuits as part of the National Grid. The tunnel was built with a 3 feet 1.125 inch gauge railway to help with maintenance access. The railway was operated with a single battery powered locomotive that was scrapped in the late 70s. See also * Fawley Power Station Fawley Power Station was an oil-fired power station located on the western side of Southampton Water, between the villages of Fawley and Calshot in Hampshire, England. Its chimney was a prominent (and navigationally useful) landmark, but it ... References Tunnels in Hampshire Buildings and structures in Hampshire National Grid (Great Britain) Electric power infrastructure in England Electric power transmission in the United Kingdom Tunnels completed in 1965 {{Hampshire-struct-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Medway Cable Tunnels
The River Medway Cable Tunnels are a pair of tunnels carrying high-voltage electricity transmission lines beneath the lower River Medway between the Isle of Grain and Chetney Marshes, Kent. Specification Each tunnel carries a 400 kV electricity circuit on the transmission line between the National Grid substations at Grain and Kemsley (Line Reference: 4TL). The oil-filled cables are designed to carry 3780 Amps in Winter and 3060 A in Summer. The tunnels are 1,700 metres long, 2.54 m in diameter and between 34 m and 47 m below ordnance datum. The tunnels are connected to a common 6.1 m diameter vertical access shaft at each end. Grain sealing end compound location: 51°26'09.4"N 0°42'18.9"E Chetney Marsh sealing end compound location: 51°25'14.6"N 0°41'59.6"E Design and construction The tunnels were built in anticipation of the commissioning of Grain power station (with a planned capacity of 3,300 MW). The crossing would allow the transmission of power to the 400 kV t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Power Tunnels
London Power Tunnels is a project by National Grid plc to reinforce the electricity transmission network in London, UK, by constructing more than 60 km of new deep-level tunnels carrying high-voltage cables. The new network of tunnels replaces a series of ageing power cables, most of which were buried directly beneath roads. These were becoming unreliable, difficult to maintain without disrupting traffic, and were unable to meet future demand for electricity. The new tunnels allow the power cables to be upgraded and maintained without disruption to traffic and residents on the surface. The project is divided into two phases: the first phase involved constructing tunnels connecting substations at Wimbledon, Hackney, and Willesden, and was completed in 2018. The second phase involves linking Wimbledon substation with Crayford, and is expected to be completed in 2026. Phase 1 The first phase involved constructing 32 km of tunnels linking substations from Wimbledon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battersea Power Station
Battersea Power Station is a decommissioned Grade II* listed coal-fired power station, located on the south bank of the River Thames, in Nine Elms, Battersea, in the London Borough of Wandsworth. It was built by the London Power Company (LPC) to the design of Leonard Pearce, Engineer in Chief to the LPC, and CS Allott & Son Engineers. The architects were J. Theo Halliday and Giles Gilbert Scott. The station is one of the world's largest brick buildings and notable for its original, Art Deco interior fittings and decor. The building comprises two power stations, built in two stages, in a single building. Battersea A Power Station was built between 1929 and 1935 and Battersea B Power Station, to its east, between 1937 and 1941, when construction was paused owing to the worsening effects of the Second World War. The building was completed in 1955. "Battersea B" was built to a design nearly identical to that of "Battersea A", creating the iconic four-chimney structure. "Battersea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Cross To Finsbury Market Cable Tunnel
The New Cross to Finsbury Market Cable Tunnel is a long, diameter tunnel beneath London which carries power distribution cables for UK Power Networks as part of the London power distribution network. It was built between 2009 and 2017 by J. Murphy & Sons. The tunnel runs at a depth of , from New Cross substation in Lewisham to Finsbury Market substation in Hackney, close to the edge of the City of London. Along the route, it connects substations at Osborn Street in Whitechapel and Wellclose Square in Wapping, passing beneath the River Thames downstream of Tower Bridge. The tunnel carries cables operating at a voltage of 132 kV with a capacity of 400 MW - enough to power 130,000 homes. References See also * Elstree to St. John's Wood Cable Tunnel * Lower Lea Valley Cable Tunnels * London Power Tunnels London Power Tunnels is a project by National Grid plc to reinforce the electricity transmission network in London, UK, by constructing more than 60 km of new ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thames Cable Tunnel
The Thames Cable Tunnel, also known as the Tilbury – Gravesend Cable Tunnel, is a tunnel carrying high-voltage electrical transmission lines beneath the lower River Thames between Tilbury and Gravesend. It remains the furthest tunnel downstream on the Thames. Completed in 1970 at a cost of around £3 million (equivalent to £ million in ) by the Central Electricity Generating Board, the tunnel carries 400 kV transmission cables between substations at Tilbury and Kingsnorth as part of the National Grid. The tunnel is approximately deep, and was one of the first tunnels in the UK to be lined with pre-cast concrete segments rather than cast iron. A tunnel was chosen due to the high costs of building an overhead transmission line at this point in the river. See also * 400 kV Thames Crossing * Dartford Cable Tunnel The Dartford Cable Tunnel is a 2.4 km utility tunnel beneath the Thames, upstream of the Dartford Crossing. With a diameter of ~, it carries a 400 kV ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
