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Tinnelva
Tinnelva is a river in Notodden, Vestfold og Telemark, Norway. It flows from Lake Tinn to Heddalsvatnet. The waterfalls Årlifossene, Grønvollfoss, Svelgfoss and Tinnfoss are exploited, and the hydroelectric power stations have a combined installed capacity of . References

Notodden Rivers of Vestfold og Telemark {{Norway-river-stub ...
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Notodden Tinnelva
Notodden () is a List of towns and cities in Norway, city and List of municipalities of Norway, municipality in Vestfold og Telemark Counties of Norway, county, Norway. It is part of the Districts of Norway, traditional region of Øst-Telemark. The administrative centre of the municipality is the city of Notodden. Notodden was separated from the municipality of Heddal in 1913 to become a separate city and municipality. On 1 January 1964, the rural municipalities of Heddal and Gransherad were merged into Notodden to form a new enlarged municipality. Notodden is on the shore of Heddalsvatnet lake, and the Tinnelva, Tinn River runs through the town into the lake. Norway's biggest stave church, Heddal Stave Church, can be seen a few kilometres from the city centre. Notodden Airport, Tuven, is located west of the city centre. Norsk Hydro was founded in this town. Notodden is well known for the annual Notodden Blues Festival, which is considered one of the best blues festivals in ...
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Notodden
Notodden () is a List of towns and cities in Norway, city and List of municipalities of Norway, municipality in Vestfold og Telemark Counties of Norway, county, Norway. It is part of the Districts of Norway, traditional region of Øst-Telemark. The administrative centre of the municipality is the city of Notodden. Notodden was separated from the municipality of Heddal in 1913 to become a separate city and municipality. On 1 January 1964, the rural municipalities of Heddal and Gransherad were merged into Notodden to form a new enlarged municipality. Notodden is on the shore of Heddalsvatnet lake, and the Tinnelva, Tinn River runs through the town into the lake. Norway's biggest stave church, Heddal Stave Church, can be seen a few kilometres from the city centre. Notodden Airport, Tuven, is located west of the city centre. Norsk Hydro was founded in this town. Notodden is well known for the annual Notodden Blues Festival, which is considered one of the best blues festivals in ...
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Heddalsvatnet
Heddalsvatnet ( en, Lake Heddal) is a lake in the municipalities Notodden and Sauherad in Vestfold og Telemark, Norway. The main influx comes from the rivers Tinnelva and Heddøla. The lake covers an area of 11.9 km2 or 13.2 km2 according to NVE. The catchment basin covers a total area of 5380,5 km2. The southern part of the lake is called Bråfjorden and is separated from the northern part by Nautsundet strait crossed county road 360 bridge. The railway line to Notodden (the Bratsberg Line) runs along the eastern shore. The lake is part of the Skien watershed and is connected to the ocean by the Telemark Canal. Heddalsvatnet is only 16 meters above sea level and only two locks at Skien were needed to allow ships to sail on the lake. The canal opened in 1861 and made Notodden into Norway's largest fresh water port. In the late 1800s seafaring vessels were constructed at the shores of Heddalsvatnet. History After the ice age the ocean was about 150 meter higher in this area. The oc ...
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Vestfold Og Telemark
Vestfold og Telemark (; ) is a county under disestablishment in Norway. The county is the southernmost one of Eastern Norway and consists of two distinct and separate traditional regions: the former counties of Telemark and (most of) Vestfold. The capital is located at the town of Skien, which is also the county's largest city. While Skien is the seat of the county municipality, the seat of the County Governor is Tønsberg. It borders the counties of Viken, Vestland, Rogaland and Agder. Telemark voted against the merger, on the basis that the regions have nothing in common and do not constitute a natural geographical, cultural, social or political entity. Regardless, the Storting voted on 7 January 2018 to merge the counties by force, and the merger took effect on 1 January 2020. Unlike Telemark or Vestfold, it does not form a traditional or cultural region, but is instead administrative. On 15 February 2022, the county council decided to vote for the future of Vestfold og Telem ...
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Lake Tinn
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ic ...
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Hydroelectric Power Station
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of 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.
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Megawatt
The watt (symbol: W) is the unit of Power (physics), power or radiant flux in the International System of Units, International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantification (science), quantify the rate of Energy transformation, energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish people, Scottish invention, inventor, mechanical engineer, and chemist who improved the Newcomen steam engine, Newcomen engine with his own Watt steam engine, steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one Newton (unit), newton, the rate at which Work (physics), work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potentia ...
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Store Norske Leksikon
The ''Great Norwegian Encyclopedia'' ( no, Store Norske Leksikon, abbreviated ''SNL''), is a Norwegian-language online encyclopedia. The online encyclopedia is among the most-read Norwegian published sites, with more than two million unique visitors per month. Paper editions 1978–2007 The ''SNL'' was created in 1978, when the two publishing houses Aschehoug and Gyldendal merged their encyclopedias and created the company Kunnskapsforlaget. Up until 1978 the two publishing houses of Aschehoug and Gyldendal, Norway's two largest, had published ' and ', respectively. The respective first editions were published in 1907–1913 (Aschehoug) and 1933–1934 (Gyldendal). The slump in sales for paper-based encyclopedias around the turn of the 21st century hit Kunnskapsforlaget hard, but a fourth edition of the paper encyclopedia was secured by a grant of ten million Norwegian kroner from the foundation Fritt Ord in 2003. The fourth edition consisted of 16 volumes, a t ...
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