La Grande-4 Generating Station
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La Grande-4 Generating Station
The La Grande-4 (LG-4) is a hydroelectric generating station on the La Grande River in Quebec, Canada that is part of Hydro-Québec's James Bay Project. The station can generate 2,779 MW and was commissioned in 1984–1986. It generates electricity through the reservoir and dam system. See also * List of largest power stations in Canada * List of hydroelectric stations in Quebec * Reservoirs and dams in Canada This is a list of dams and water reservoirs in Canada. Alberta * Bassano Dam * Bearspaw Dam *Bighorn Dam * Brazeau Dam * Cascade Dam *Dickson Dam * Ghost Dam *Glenmore Reservoir * Interlakes Dam *Milk River Ridge Reservoir * Old Man River Dam * ... James Bay Project Dams in Quebec Dams completed in 1986 Dams on the La Grande River Publicly owned dams in Canada {{Canada-powerstation-stub ...
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La Grande River
La Grande River (french: La Grande Rivière; cr, Chisasibi, script=latn; both meaning "great river") is a river in northwestern Quebec, Canada, which rises in the highlands of north central Quebec and flows roughly west to drain into James Bay. It is the second largest river in Quebec, surpassed only by the Saint Lawrence River. Originally, the La Grande River drained an area of and had a mean discharge of . Since the 1980s when hydroelectric development diverted the Eastmain and Caniapiscau rivers into the La Grande, its total catchment area has increased to about , and its mean discharge increased to more than . In November 2009, the Rupert River was also partially diverted, adding another to the basin. At one time, this river was known as the "Fort George River". The Hudson's Bay Company operated a trading post on the river at Big River House from 1803 to 1824. In 1837, a large trading post was established at Fort George on an island at the mouth of the river. In the earl ...
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Baie-James
The Municipality of Baie-James (french: Municipalité de Baie-James) was a municipality in northern Quebec, Canada, which existed from 1971 to 2012. Located to the east of James Bay, Baie-James covered of land, making it the largest incorporated municipality in Canada — only eight Unorganized area (Canada), unorganized territories were larger. Its territory almost entirely (about 98%) covered the administrative region of Jamésie, although it contained less than five percent of the population. Essentially, it was the remainder of the Jamésie Territory's land after all of the major population centres were removed. On July 24, 2012, the Quebec government signed an accord with the Cree that would result in the abolition of Baie-James and the creation of a regional government known as Eeyou Istchee James Bay Territory. The hydroelectric power plants of the James Bay Project, La Grande Complex were all located within the municipal boundaries of Baie-James, making the municipalit ...
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Quebec
Quebec ( ; )According to the Canadian government, ''Québec'' (with the acute accent) is the official name in Canadian French and ''Quebec'' (without the accent) is the province's official name in Canadian English is one of the thirteen provinces and territories of Canada. It is the largest province by area and the second-largest by population. Much of the population lives in urban areas along the St. Lawrence River, between the most populous city, Montreal, and the provincial capital, Quebec City. Quebec is the home of the Québécois nation. Located in Central Canada, the province shares land borders with Ontario to the west, Newfoundland and Labrador to the northeast, New Brunswick to the southeast, and a coastal border with Nunavut; in the south it borders Maine, New Hampshire, Vermont, and New York in the United States. Between 1534 and 1763, Quebec was called ''Canada'' and was the most developed colony in New France. Following the Seven Years' War, Quebec b ...
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Hydro-Québec
Hydro-Québec is a public utility that manages the generation, transmission and distribution of electricity in the Canadian province of Quebec, as well as the export of power to portions of the Northeast United States. It was established by the Government of Quebec in 1944 from the expropriation of private firms. This was followed by massive investment in hydro-electric projects like the James Bay Project. Today, with 63 hydroelectric power stations, the combined output capacity is 37,370 megawatts. Extra power is exported from the province and Hydro-Québec supplies 10 per cent of New England's power requirements. Hydro-Québec is a Crown corporation (state-owned enterprise) based in Montreal. In 2018, it paid CAD$2.39 billion in dividends to its sole shareholder, the Government of Québec. Its residential power rates are among the lowest in North America. More than 40 percent of Canada’s water resources are in Québec and Hydro-Québec is the fourth largest hydropower produ ...
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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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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 for d ...
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Hydroelectricity
Hydroelectricity, or hydroelectric power, is Electricity generation, 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 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.
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James Bay Project
The James Bay Project (french: projet de la Baie-James) refers to the construction of a series of hydroelectric power stations on the La Grande River in northwestern Quebec, Canada by state-owned utility Hydro-Québec, and the diversion of neighbouring rivers into the La Grande watershed. It is located between James Bay to the west and Labrador to the east, and its waters flow from the Laurentian Plateau of the Canadian Shield. The project covers an area the size of New York State and is one of the largest hydroelectric systems in the world. It has cost upwards of US$20 billion to build and has an installed generating capacity of 16,527 megawatts. If fully expanded to include all of the original planned dams, as well as the additional James Bay II projects, the system would generate a total of 27,000 MW, making it the largest hydroelectric system in the world. It has been built since 1974 by James Bay Energy () for Hydro-Québec. Located in a region inhabited by Cree and Inuit ...
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Reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam A dam is a barrier that stops or restricts the flow of surface water or underground streams ...
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Barrage évacuateur LG4
Barrage may refer to: Entertainment * ''Barrage'' (Barrage album), by band Barrage * ''Barrage'' (Paul Bley album), 1965 * Barrage (group), a Canadian violin ensemble * ''Barrage'' (film), a 2017 film * ''Barrage'' (manga), a 2012 shōnen manga by Kōhei Horikoshi * Barrage, a fictional character from DC Comics Other uses * Barrage (artillery), a line or barrier of artillery or depth charge fire * Barrage (dam), a type of dam * Barrage balloon A barrage balloon is a large uncrewed tethered balloon used to defend ground targets against aircraft attack, by raising aloft steel cables which pose a severe collision risk to aircraft, making the attacker's approach more difficult. Early barra ..., a tethered balloon used as an obstacle to attacking aircraft * Tidal barrage, an artificial obstruction at the mouth of a tidal watercourse {{disambiguation ...
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List Of Largest Power Stations In Canada
This article lists the largest electrical generating stations in Canada in terms of current installed electrical capacity. Non-renewable power stations are those that run on coal, fuel oils, nuclear, natural gas, oil shale and peat, while renewable power stations run on fuel sources such as biomass, geothermal heat, hydro, solar energy, solar heat, tides, waves and wind. As of 2022 the largest power generating facility is the Bruce Nuclear Generating Station in Ontario and has an installed capacity of 6,430 MW. Largest power stations List of the electrical generating facilities in Canada with a current installed capacity of at least 250 MW. Notes Largest power stations under construction List of the electrical generating facilities under construction in Canada with an expected installed capacity of at least 250 MW. Largest decommissioned power stations List of former electrical generating facilities in Canada that had an installed capacity of at least 250 MW at ...
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List Of Hydroelectric Stations In Quebec
The following page lists electrical generating stations in Quebec, Canada. Quebec produces close to 96% of its electricity through hydropower. The James Bay Project is Quebec's largest generation complex, with an installed capacity of 16,527 megawatt of power, approximately 40% of the province's peak load. Hydro-Québec, the government-owned public utility is the main power generator in the province with 59 hydroelectric facilities located across the province, for a total installed capacity of 34,490 MW. Hydroelectric Owned by Hydro-Québec List of hydroelectric generating stations owned and operated by Hydro-Québec Production. Stations with partial Hydro-Québec ownership Privately owned hydroelectric generating stations List of privately owned hydroelectric generating stations in Quebec, including facilities owned by municipal utilities. Other Renewables Wind List of wind farms in Quebec. Biomass List of biomass and waste generating stations in Quebe ...
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