|
National Grid (other)
National Grid or National grid may refer to: Power transmission * Electrical grid, an interconnected network for delivering electricity ** National Grid (Great Britain), the electricity transmission network of Great Britain *** National Grid plc, a utilities company based in the UK that also operates in the northeastern United States ** National Grid (India), the electricity transmission network of India ** National Grid (Malaysia), the electricity transmission network of Malaysia ** National Grid (New Zealand), the electricity transmission network of New Zealand Geosurvey * National grid reference system, a national geographical coordinate system for mapping ** Ordnance Survey National Grid, used in Great Britain ** Irish national grid reference system ** United States National Grid Other uses * National Grid for Learning, a former government funded educational program in the UK See also * Power Grid Corporation of India * State Grid Corporation of China The State Grid C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Grid
An electrical grid (or electricity network) is an interconnected network for electricity delivery from producers to consumers. Electrical grids consist of power stations, electrical substations to step voltage up or down, electric power transmission to carry power over long distances, and finally electric power distribution to customers. In that last step, voltage is stepped down again to the required service voltage. Power stations are typically built close to energy sources and far from densely populated areas. Electrical grids vary in size and can cover whole countries or continents. From small to large there are microgrids, wide area synchronous grids, and super grids. The combined transmission and distribution network is part of electricity delivery, known as the ''power grid''. Grids are nearly always synchronous, meaning all distribution areas operate with three phase alternating current (AC) frequencies synchronized (so that voltage swings occur at almost the same ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Grid (Great Britain)
The National Grid is the high-voltage electric power transmission Grid (electricity), network supporting the Electricity in Great Britain, UK's electricity market, connecting power stations and major Electrical substation, substations, and ensuring that electricity generated anywhere on the grid can be used to satisfy demand elsewhere. The network serves the majority of Great Britain and some of the surrounding islands. It does not cover Northern Ireland, which is part of the Electricity sector in Ireland, Irish single electricity market. The National Grid is a wide area synchronous grid operating at 50 hertz and consisting of 400 kV and 275 kV lines, as well as 132 kV lines in Scotland. It has several undersea power cable, undersea interconnectors: an AC connector to the Isle of Man, and High-voltage direct current, HVDC connections to Northern Ireland, the Shetland Islands, the Republic of Ireland, France, Belgium, the Netherlands, Norway, and Denmark. Ownership Since the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Grid Plc
National Grid plc is a British multinational electricity and gas utility company headquartered in London, England. Its principal activities are in the United Kingdom, where it owns and operates electricity and natural gas transmission networks, and in the Northeastern United States, where as well as operating transmission networks, the company produces and supplies electricity and gas, providing both to customers in New York and Massachusetts. National Grid plc is one of the largest investor-owned utility companies in the world; it has a primary listing on the London Stock Exchange where it is a constituent of the FTSE 100 Index, and a secondary listing in the form of its American depositary receipts on the New York Stock Exchange. History Background (CEGB before 1990) Before 1990, both the generation and transmission activities in England and Wales were under the responsibility of the Central Electricity Generating Board (CEGB). The present electricity market in the Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Grid (India)
The National Grid is the high-voltage electricity transmission network in India, connecting power stations and major substations and ensuring that electricity generated anywhere in India can be used to satisfy demand elsewhere. The National Grid is owned, and maintained by state-owned Power Grid Corporation of India and operated by state-owned Power System Operation Corporation. It is one of the largest operational synchronous grids in the world with 417.68 GW of installed power generation capacity as of 31 May 2023. India's grid is connected as a wide area synchronous grid nominally running at 50 Hz. The permissible range of the frequency band is 49.5-50.5 Hz, effective 17 September 2012. The Union Government regulates grid frequency by requiring States to pay more when they draw power at low frequencies. There are also synchronous interconnections to Bhutan, and asynchronous links with Bangladesh, Myanmar, and Nepal. An undersea interconnection to Sri Lanka ( Indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Grid (Malaysia)
National Grid, Malaysia () is the high-voltage electric power transmission Grid (electricity), network in Peninsular Malaysia. It is operated and owned by Tenaga Nasional, Tenaga Nasional Berhad (TNB) by its Transmission Division. There are two other electrical grids in Sabah and Sarawak operated by Sabah Electricity, Sabah Electricity Sdn Bhd (SESB) and Sarawak Energy, Sarawak Energy Berhad (SEB). The system spans the whole of Peninsular Malaysia, transporting electricity in bulk from power generators owned by TNB and Independent Power Producers (IPPs) to distributors. The grid also transports directly to large industrial customers, such as steel mills and fertilizer plants. History The beginnings of the National Grid was slowly taking shape in 1964 when the Bangsar Power Station was connected to the Connaught Bridge Power Station, with the line subsequently extended to Malacca. By 1965, a plan was set to connect the electricity generating plants that were spread out all over ... [...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] |
National Grid Reference System
A projected coordinate systemalso called a projected coordinate reference system, planar coordinate system, or grid reference systemis a type of spatial reference system that represents locations on Earth using Cartesian coordinates (''x'', ''y'') on a planar surface created by a particular map projection. Each projected coordinate system, such as "Universal Transverse Mercator WGS 84 Zone 26N," is defined by a choice of map projection (with specific parameters), a choice of geodetic datum to bind the coordinate system to real locations on the earth, an origin point, and a choice of unit of measure. Hundreds of projected coordinate systems have been specified for various purposes in various regions. When the first standardized coordinate systems were created during the 20th century, such as the Universal Transverse Mercator, State Plane Coordinate System, and British National Grid, they were commonly called ''grid systems''; the term is still common in some domains such as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance Survey National Grid
The Ordnance Survey National Grid reference system (OSGB), also known as British National Grid (BNG), is a system of geographic grid references, distinct from latitude and longitude, whereby any location in Great Britain can be described in terms of its distance from the origin (0, 0), which lies to the west of the Isles of Scilly. The Ordnance Survey (OS) devised the national grid reference system, and it is heavily used in its survey data, and in maps based on those surveys, whether published by the Ordnance Survey or by commercial map producers. Grid references are also commonly quoted in other publications and data sources, such as guide books and government planning documents. A number of different systems exist that can provide grid references for locations within the British Isles: this article describes the system created solely for Great Britain and its outlying islands (including the Isle of Man). The Irish grid reference system is a similar system created by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irish National Grid Reference System
The Irish grid reference system is a system of geographic grid references used for paper mapping in Ireland (both Northern Ireland and the Republic of Ireland). Any location in Ireland can be described in terms of its distance from the origin (0, 0), which lies off the southwest coast. The Irish grid partially overlaps the British grid, and uses a similar co-ordinate system but with a meridian more suited to its westerly location. Usage In general, neither Ireland nor Great Britain uses latitude or longitude in describing internal geographic locations. Instead grid reference systems are used for mapping. The national grid referencing system was devised by the Ordnance Survey, and is heavily used in their survey data, and in maps (whether published by the Ordnance Survey of Ireland, the Ordnance Survey of Northern Ireland or commercial map producers) based on those surveys. Additionally grid references are commonly quoted in other publications and data sources, such as guide b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States National Grid
The United States National Grid (USNG) is a multi-purpose location system of grid references used in the United States. It provides a nationally consistent "language of location", optimized for local applications, in a compact, user friendly format. It is similar in design to the national grid reference systems used in other countries. The USNG was adopted as a national standard by the Federal Geographic Data Committee (FGDC) of the US Government in 2001. Overview While latitude and longitude are well suited to describing locations over large areas of the Earth's surface, most practical land navigation situations occur within much smaller, local areas. As such, they are often better served by a local Cartesian coordinate system, in which the coordinates represent actual distance units on the ground, using the same units of measurement from two perpendicular coordinate axes. This can improve human comprehension by providing reference of scale, as well as making actual dista ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Grid For Learning
The National Grid for Learning (NGfL) was a United Kingdom, UK government-funded gateway to educational resources on the Internet. It provided a curated collection of links to resources and materials of high quality. The NGfL was established to support schools in England, while separate grids were created for schools in Northern Ireland, Scotland, and Wales. The NGfL portal was launched in November 1998 as part of the DfES National Grid for Learning strategy. This programme aimed to enhance the use of Information technology, information and communications technology (ICT) by learners and educators in the United Kingdom. It was among several new programmes introduced by the Labour Party (UK), Labour government, which assumed office in May 1997, and had a dedicated budget allocated for schools' internet connections and ICT. The portal was funded and managed by Becta (British Educational Communications and Technology Agency), the government's leading agency for ICT in education. Reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Grid Corporation Of India
Power Grid Corporation of India Limited is an Indian central public sector undertaking under the ownership of the Ministry of Power, Government of India. It is engaged mainly in transmission of bulk power across different states of India. It is headquartered in Gurugram. Power Grid transmits about 50% of the total power generated in India on its transmission network. History The Power Grid Corporation of India Limited was incorporated on 23 October 1989 under the Companies Act, 1956 with an authorized share capital of Rs. 5,000 Crore (subsequently enhanced to Rs. 10,000 Crore in Financial Year (FY) 2007–08) as a public limited company, wholly owned by the Government of India with 51.34% stake in the company as on 31 December 2020 and as principal electric power transmission company for the country. Its original name was the "National Power Transmission Corporation Limited", was charged with planning, executing, owning, operating and maintaining high-voltage transmission s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
