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The Ordnance Survey National Grid reference system (OSGB), also known as British National Grid (BNG), [1] [2] 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 Davidson Committee's final report set the Ordnance Survey on course for the 20th century. The metric national grid reference system was launched and a 1:25000-scale series of maps was introduced. The one-inch maps continued to be produced until the 1970s, when they were superseded by the 1:50000-scale series – as proposed by William Roy ...
The National Grid is the high-voltage electric power transmission network supporting the UK's electricity market, connecting power stations and major 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.
The 275/400 kV grid and substations in England and Wales are owned and operated by National Grid Electricity Transmission. It also operates the grid and substations in Scotland although the systems are owned by ScottishPower and Scottish & Southern Energy. In Northern Ireland grid and substations are owned and operated by Northern Ireland ...
[2] [3] There are 332,216 such grid squares containing at least some land or permanent structure (at low tide), of which 281,131 have Geographs. [4] Geographs are being collected for all parts of Great Britain, Isle of Man and Ireland. The Channel Islands fall outside Britain's grid system, but may be geographed using their local UTM grid.
Substation UK Substation 2 Length (km) Voltage (kV) Power (MW) Operational Remarks HVDC Cross-Channel: National Grid Interconnectors and RTE: Sellindge: Bonningues-lès-Calais: 73: ±270: 2,000: 1986: submarine HVDC: BritNed: National Grid Interconnectors and TenneT: Isle of Grain: Maasvlakte: 260: 450: 1,000: 2011: submarine HVDC: East–West ...
On the breakup of the CEGB in 1990, the ownership and operation of the National Grid in England and Wales passed to National Grid Company plc, later to become National Grid Transco, and now National Grid plc. In Scotland the grid was already split into two separate entities, one for southern and central Scotland and the other for northern ...
Given that every projection gives deformations, each country's needs are different in order to reduce these distortions. These national projections, or national Coordinate Reference Systems are officially announced by the relevant national agencies. The list below is a collection of available official national projected Coordinate Reference ...