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Shira Hydro-Electric Scheme
The Shira Hydro-Electric Scheme is a project initiated by the North of Scotland Hydro-Electric Board to use the waters of the River Shira, the River Fyne and other small streams to generate hydroelectricity. It is located between Loch Fyne and Loch Awe in Argyll and Bute, western Scotland. It consists of three power stations and three impounding dams. The remoteness of the area in which the scheme was built required of access roads to be built before the main works could begin. The three dams were all of different types; a round headed buttress dam; a concrete gravity and earth fill dam; and the first ever use of a prestressed gravity dam. The construction of the earth fill dam was hindered by four months of extremely wet weather. Clachan was the first large underground power station that the Board built, while Sron Mor was the first implementation of a pumped storage scheme, built in anticipation of the arrival of nuclear power generation. The power stations were commissioned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SSE Plc
SSE plc (formerly Scottish and Southern Energy plc) is a multinational energy company headquartered in Perth, Scotland. It is listed on the London Stock Exchange, and is a constituent of the FTSE 100 Index. SSE operates in the United Kingdom and Ireland. History Origins The company has its origins in two public sector electricity supply authorities. The former North of Scotland Hydro-Electric Board was founded in 1943 to design, construct and manage hydroelectricity projects in the Highlands of Scotland, and took over further generation and distribution responsibilities on the nationalisation of the electricity industry within the United Kingdom in 1948. The former Southern Electricity Board was created in 1948 to distribute electricity in Southern England. Whilst the Southern Electricity Board was a distribution only authority, with no power generation capacity of its own, the North of Scotland Hydro-Electric board was a broader spectrum organisation, with its own generat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Turbine
The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today, and can achieve over 95% efficiency. The process of arriving at the modern Francis runner design took from 1848 to approximately 1920. It became known as the Francis turbine around 1920, being named after British-American engineer James B. Francis who in 1848 created a new turbine design. Francis turbines are primarily used for producing electricity. The power output of the electric generators generally ranges from just a few kilowatts up to 1000 MW, though mini-hydro installations may be lower. The best performance is seen when the head height is between . Penstock diameters are between . The speeds of different turbine units range from 70 to 1000 rpm. A wicket gate around the outside of the turbine's rotating runner controls the rate of water flow through the turbine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric Power Stations In Scotland
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, 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] |
Ordnance Datum
An ordnance datum (OD) is a vertical datum used by an ordnance survey as the basis for deriving altitudes on maps. A spot height may be expressed as above ordnance datum (AOD). Usually mean sea level (MSL) at a particular place is used for the datum. British Isles * In Great Britain, OD for the Ordnance Survey is Ordnance Datum Newlyn (ODN), defined as the MSL as recorded by the Newlyn Tidal Observatory between 1915 and 1921. **Prior to 1921, OD was Ordnance Datum Liverpool (ODL) defined as MSL as recorded in the Victoria Dock (Liverpool), Victoria Dock, Liverpool, during a short period in 1844. The first datum, in 1840 used a benchmark on St John's Church, Liverpool Central, St. John’s Church, . * In Northern Ireland, OD for the Ordnance Survey of Northern Ireland is Belfast Ordnance Datum: the MSL at Clarendon Dock, Belfast Harbour, between 1951 and 1956. * In Republic of Ireland, Ireland, OD for the Ordnance Survey of Ireland is Malin Ordnance Datum: the MSL at Portmoor Pie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelton Wheel
The Pelton wheel or Pelton Turbine is an Impulse (physics), impulse-type water turbine invented by American inventor Lester Allan Pelton in the 1870s. The Pelton wheel extracts energy from the impulse of moving water, as opposed to water's dead weight like the traditional overshot water wheel. Many earlier variations of impulse turbines existed, but they were less Energy conversion efficiency, efficient than Pelton's design. Water leaving those wheels typically still had high speed, carrying away much of the dynamic energy brought to the wheels. Pelton's paddle geometry was designed so that when the rim ran at half the speed of the water jet, the water left the wheel with very little speed; thus his design extracted almost all of the water's impulse energywhich made for a very efficient turbine. History file:Pelton wheel (patent).png, Figure from Lester Allan Pelton's original October 1880 patent Lester Allan Pelton was born in Vermillion, Ohio in 1829. In 1850, he traveled ov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allt Na Lairige Dam
Allt na Lairige Dam (Burn of the Pass), is a pre-stressed concrete dam in Argyll and Bute, Scotland at . It creates an impounding reservoir which serves Allt na Lairige hydro-electric power station, which is part of the Shira Hydro-Electric Scheme, and is located on the River Fyne just before it discharges into Loch Fyne. The dam was designed by William George Nicholson Geddes, as directed by James Arthur Banks of Babtie, Shaw and Morton of Glasgow. Construction was carried out by Marples Ridgway. It was completed in 1956 and has a height of . It is the only large pre-stressed concrete dam in Britain. See also *List of reservoirs and dams in the United Kingdom This is a list of dams and reservoirs in the United Kingdom. England Buckinghamshire *Foxcote Reservoir and Wood, Foxcote Reservoir, north of Buckingham *Weston Turville Reservoir, between Weston Turville and Wendover Cambridgeshire *Grafham Wat ... References Sources"Argyll and Bute Council Reservoirs Act 1975 Pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward MacColl
Edward MacColl (8 July 1882 - 15 July 1951), later Sir Edward MacColl, was a Scottish engineer, whose greatest achievements were made during the time he was Vice Chairman and chief executive officer for the North of Scotland Hydro-Electric Board. He was knighted in 1949, and died on 15 July 1951, the day before his wife Lady Margaret MacColl was due to perform the formal opening of the Tummel hydro-electric power scheme. Early life Edward MacColl, actually Albert Edward MacColl, was born on 8 July 1882 in Dumbarton, Dunbartonshire. His mother was English and his father was John MacColl, originally from Kilmelford in Argyll, Scotland. John MacColl died while Edward was still a child, and so the family moved in with his mother's parents. His grandfather was Albert Edward Johnson, who was employed by Denny's shipyard to make models of the ships which would then be built in the yard, and MacColl spent a lot of time in his grandfather's workshop, learning to appreciate craftsmanshi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tummel Hydro-electric Power Scheme
The Tummel hydro-electric power scheme is an interconnected network of dams, power stations, Aqueduct (water supply), aqueducts and electric power transmission in the Grampian Mountains of Scotland. Roughly bounded by Dalwhinnie in the north, Rannoch Moor in the west and Pitlochry in the east it comprises a water catchment area of around and primary water storage at Loch Ericht, Loch Errochty, Loch Rannoch and Loch Tummel, in Perth and Kinross. Water, depending on where it originates and the path it takes, may pass through as many as five of the schemes nine power stations as it progresses from north-west to south-east. The scheme was constructed in the 1940s and 50s incorporating some earlier sites. It is managed by SSE plc. Early Development The idea of Loch Ericht as a source for hydro-electric power was first anticipated in 1899, when the Highland Water Power Bill was put before Parliament. The plan was to generate electricity for industrial purposes, but the bill did no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Of Scotland Hydro-Electric Board
The North of Scotland Hydro-Electric Board (1943–1990) was founded to design, construct and manage hydroelectricity projects in the Highlands of Scotland. It is regarded as one of the major achievements of Scottish politician Thomas Johnston, who chaired the board from 1945 to 1959. Background In the 1930s several schemes were proposed to develop hydro-electric power in the north of Scotland. These met with opposition by landowners, sporting interest and the coal mining industry on the grounds of competition. There was also opposition from official sources. Plans to build a power station at Kinlochleven for the benefit of the aluminium industry were shelved when Inverness County Council refused to allow water from the River Spey and River Laggan to cross the county border into Argyllshire. In 1938, the Caledonian Water Power bill was defeated in Parliament. This would have allowed a private company to build hydro-electric schemes in the Highlands, and its defeat was welcome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loch Sloy Hydro-Electric Scheme
The Loch Sloy Hydro-Electric Scheme is a hydro-electric facility situated between Loch Sloy and Inveruglas on the west bank of Loch Lomond in Scotland. It is also within the Arrochar Alps. History Loch Sloy is a relatively small loch located to the west of Loch Lomond and around above it. The engineer Edward MacColl was asked to look at the possibility of using it for a hydro-electric sceme in 1936, while working for the Central Electricity Board. However, rather than a conventional arrangement, he considered that it was suitable for a huge pumped-storage scheme, which would have been much larger than any of the existing schemes in Scotland. He called it a "reversible hydraulic station", which would pump water from Loch Lomond to Loch Sloy during the night, and use the water to generate electricity at times when the demand was highest. He envisaged eight turbines, with a total capacity of 360 MW. The site was visited by the Board's Technical Development Committee in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom Johnston (British Politician)
Thomas Johnston (2 November 1881 – 5 September 1965) was a prominent Scottish socialist journalist who became a politician of the early 20th century, a member of the Labour Party, a member of parliament (MP) and government minister – usually with Cabinet responsibility for Scottish affairs. He was also a notable figure in the Friendly society movement in Scotland. Red Clydesider Johnston was the son of David Johnston, a grocer, and his wife, Mary Blackwood. He was born in Kirkintilloch in 1881 and educated at Kirkintilloch Board School then at Lenzie Academy. Studying Moral Philosophy and Political Economy at the University of Glasgow, he failed to graduate, but helped launch the left-wing journal, '' Forward'', in 1906, and in the same city later became associated with the 'Red Clydesiders', a socialist grouping that included James Maxton and Manny Shinwell. In 1909 he published a book, ''Our Scots Noble Families'', which aimed to discredit the landed aristocracy. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
