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Siadar Wave Energy Project
The Siadar Wave Power Station (also known as Siadar Wave Energy Project or SWEP) was a proposed 4 Megawatt, MW wave farm off the shore of Siadar Bay, in Isle of Lewis, Lewis, Scotland. The £30 million project, was to be built by Wavegen, received Scottish Government approval on 22 January 2009. Originally, the project was developed in cooperation with npower Renewables. However, in August 2011, npower Renewables left the project. In 2012 project was cancelled. The wave station was proposed to be based on oscillating water column technology. A causeway will be constructed, and a Breakwater (structure), breakwater with 10 concrete Caisson (engineering), caissons, containing 36 to 40 Wells turbines, placed on the seabed. See also *Wave Energy *Renewable energy in Scotland *European Marine Energy Centre *Aegir wave farm *Pelamis Wave Power *Aquamarine Power References External linksSiadar Wave Power Schemeat npower renewables at WavegenSiadar Bay Wave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotland
Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the north and west, the North Sea to the northeast and east, and the Irish Sea to the south. It also contains more than 790 islands, principally in the archipelagos of the Hebrides and the Northern Isles. Most of the population, including the capital Edinburgh, is concentrated in the Central Belt—the plain between the Scottish Highlands and the Southern Uplands—in the Scottish Lowlands. Scotland is divided into 32 administrative subdivisions or local authorities, known as council areas. Glasgow City is the largest council area in terms of population, with Highland being the largest in terms of area. Limited self-governing power, covering matters such as education, social services and roads and transportation, is devolved from the Scott ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caisson (engineering)
In geotechnical engineering, a caisson ( or ; borrowed from French ''caisson'', from Italian ''cassone'', meaning ''large box'', an augmentative of ''cassa'') is a watertight retaining structure used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, or for the repair of ships. Caissons are constructed in such a way that the water can be pumped out, keeping the work environment dry. When piers are being built using an open caisson, and it is not practical to reach suitable soil, friction pilings may be driven to form a suitable sub-foundation. These piles are connected by a foundation pad upon which the column pier is erected. Caisson engineering has been used at least since the 18th century, and was notably used in the construction of the Brooklyn Bridge, which was completed in 1883. Types To install a caisson in place, it is brought down through soft mud until a suitable foundation material is encountered. While bedrock is pref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In The Outer Hebrides
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 artis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2011 In Scotland
Events from the year 2011 in Scotland. Incumbents * First Minister and Keeper of the Great Seal – Alex Salmond * Secretary of State for Scotland – Michael Moore Law officers * Lord Advocate – Elish Angiolini; then Frank Mulholland * Solicitor General for Scotland – Frank Mulholland; then Lesley Thomson * Advocate General for Scotland – Lord Wallace of Tankerness Judiciary * Lord President of the Court of Session and Lord Justice General – Lord Hamilton * Lord Justice Clerk – Lord Gill * Chairman of the Scottish Land Court – Lord McGhie Events January * 1 January – The United Nations is to examine claims of ownership of the Scottish island of Rockall, after a request from Denmark, which has sovereignty over the neighbouring Faroes * 1 January – A soldier serving with the Argyll and Sutherland Highlanders is killed in an explosion near to the Nahr-e Saraj district of Helmand Province, in Afghanistan * 1 January – approximately 140 people ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquamarine Power
Aquamarine Power was a wave energy company, founded in 2005 to commercialise the Oyster wave energy converter, a device to capture energy from near-shore waves. The company's head offices were in Edinburgh, Scotland. The company ceased to trade on 20 November 2015. History The Oyster concept originated from studies conducted in 2003 by the wave power research team at Queen's University, Belfast, led by Professor Trevor Whittaker. The studies were co-funded by the Engineering and Physical Sciences Research Council and Allan Thomson, who had previously founded and led the UK's first commercial wave energy company, Wavegen. In 2005, Thomson founded Aquamarine Power to progress the commercialisation of the Oyster device. In 2007 Scottish & Southern Energy subsidiary Renewable Technology Ventures Limited invested in Aquamarine with a further investment in 2010. In February 2009, Aquamarine Power and Queen's University signed an agreement to extend their R&D partnership to 2014. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Marine Energy Centre
The European Marine Energy Centre (EMEC) Ltd is a UKAS accredited test and research center focusing on wave and tidal power development based in the Orkney Islands, UK. The centre provides developers with the opportunity to test full-scale grid-connected prototype devices in unrivalled wave and tidal conditions. In addition to EMEC's wave and tidal sites, EMEC has an onshore hydrogen production plant in Eday where green hydrogen is generated from surplus tidal and wind energy with a view of developing a hydrogen economy in Orkney. The operations are spread across five sites across Orkney: * Billia Croo wave energy test site, Mainland (wave power) * Fall of Warness tidal energy test site, off the island of Eday (tidal power) * Caldale Hydrogen Production Plant, on Eday * Scale wave test site at Scapa Flow, off St Mary's Bay * Scale tidal test site at Shapinsay Sound, off Head of Holland * Stromness (office and data facilities) EMEC was established by a grouping of public se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renewable Energy In Scotland
The production of renewable energy in Scotland is a topic that came to the fore in technical, economic, and political terms during the opening years of the 21st century. The natural resource base for renewable energy is high by European, and even global standards, with the most important potential sources being wind, wave, and tide. Renewables generate almost all of Scotland's electricity, mostly from the country's wind power. In 2020, Scotland had 12 gigawatts (GW) of renewable electricity capacity, which produced about a quarter of total UK renewable generation. In decreasing order of capacity, Scotland's renewable generation comes from onshore wind, hydropower, offshore wind, solar PV and biomass. Scotland exports much of this electricity. Continuing improvements in engineering and economics are enabling more of the renewable resources to be used. Fears regarding fuel poverty and climate change have driven the subject high up the political agenda. In 2020 a quarter of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wave Energy
Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, water desalination, or pumping water. A machine that exploits wave power is a wave energy converter (WEC). Waves are generated by wind passing over the sea's surface. As long as the waves propagate slower than the wind speed just above, energy is transferred from the wind to the waves. Air pressure differences between the windward and leeward sides of a wave crest and surface friction from the wind cause shear stress and wave growth. Wave power is distinct from tidal power, which captures the energy of the current caused by the gravitational pull of the Sun and Moon. Other forces can create currents, including breaking waves, wind, the Coriolis effect, cabbeling, and temperature and salinity differences. As of 2022, wave power is not widely employed for commercial applications, after a long series of trial projects. Attempts to use this energy began in 1890 or earlier, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Herald (Glasgow)
''The Herald'' is a Scottish broadsheet newspaper founded in 1783. ''The Herald'' is the longest running national newspaper in the world and is the eighth oldest daily paper in the world. The title was simplified from ''The Glasgow Herald'' in 1992. Following the closure of the ''Sunday Herald'', the ''Herald on Sunday'' was launched as a Sunday edition on 9 September 2018. History Founding The newspaper was founded by an Edinburgh-born printer called John Mennons in January 1783 as a weekly publication called the ''Glasgow Advertiser''. Mennons' first edition had a global scoop: news of the treaties of Versailles reached Mennons via the Lord Provost of Glasgow just as he was putting the paper together. War had ended with the American colonies, he revealed. ''The Herald'', therefore, is as old as the United States of America, give or take an hour or two. The story was, however, only carried on the back page. Mennons, using the larger of two fonts available to him, put it in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wells Turbine
The Wells turbine is a low-pressure Wind turbine, air turbine that rotates continuously in one direction independent of the direction of the air flow. Its blades feature a symmetrical airfoil with its plane of symmetry in the plane of rotation and perpendicular to the air stream. It was developed for use in Oscillating Water Column wave power plants, in which a rising and falling water surface moving in an air compression chamber produces an oscillating air current. The use of this bidirectional turbine avoids the need to rectify the air stream by delicate and expensive check valve systems. Its efficiency is lower than that of a turbine with constant air stream direction and asymmetric airfoil. One reason for the lower efficiency is that symmetric airfoils have a higher drag coefficient than asymmetric ones, even under optimal conditions. Also, in the Wells turbine, the symmetric airfoil runs partly under high angle of attack (i.e., low blade speed / air speed ratio), which occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
