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Underground Power Station
An underground power station is a type of hydroelectric power station constructed by excavating the major components (e.g. machine hall, penstocks, and tailrace) from rock, rather than the more common surface-based construction methods. One or more conditions impact whether a power station is constructed underground. The terrain or geology around a dam is taken into consideration, as gorges or steep valleys may not accommodate a surface power station. A power station within bedrock may be less expensive to construct than a surface power station on loose soil. Avalanche-prone valleys often make a surface station unfeasible as well. After World War II, large hydroelectric power stations were placed underground more often in order to protect them from airstrikes. Often underground power stations form part of pumped storage hydroelectricity schemes, whose basic function is to level load: they use cheap or surplus off-peak power to pump water from a lower lake to an upper lake. During p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrale RB Intérieur
Centrale may refer to: Places * Centrale (Milan Metro), a rail station in Milan, Italy * Centrale (shopping centre) in Croydon, South London ** Centrale tram stop, named after the shopping centre above * Centrale Region, Togo * 138 East 50th Street, a condominium tower in Midtown Manhattan Schools * Centrale Graduate School : Graduate engineering school (France) ** École centrale de Lille ** École centrale de Lyon ** École centrale de Marseille ** École centrale de Nantes ** École Centrale Paris Other * The os centrale carpal and tarsal bone in the wrists and ankles of land vertebrates {{disambiguation, school ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goldisthal Pumped Storage Station
The Goldisthal Pumped Storage Station is a pumped-storage power station in the Thüringer Mountains at the upper run of the river Schwarza in Goldisthal, Germany. It was constructed between 1997 and 2004. It has an installed capacity of , the largest hydroelectric power plant in Germany and one of largest in Europe.History and characteristics of Goldisthal pumped-storage power plant , VattenFall.com website, 6 February 2012. Retrieved October 2013. Facility The upper reservoir is located at an altitude of . It has an active (or usable) capacity of 12 million m³ and a surface area of 55 hectares. In order to create this basin, the mountain summit was cleared away. This stored quantity of water is enough for eight hours of operation. This corresponds to a max ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgaria
Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. Bulgaria covers a territory of , and is the sixteenth-largest country in Europe. Sofia is the nation's capital and largest city; other major cities are Plovdiv, Varna and Burgas. One of the earliest societies in the lands of modern-day Bulgaria was the Neolithic Karanovo culture, which dates back to 6,500 BC. In the 6th to 3rd century BC the region was a battleground for ancient Thracians, Persians, Celts and Macedonians; stability came when the Roman Empire conquered the region in AD 45. After the Roman state splintered, tribal invasions in the region resumed. Around the 6th century, these territories were settled by the early Slavs. The Bulgars, led by Asp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaira Hydro Power Plant
The Chaira Pumped Storage Hydro Power Plant (Chaira PSHPP) was built in the Rila mountains, about southeast of Bulgaria's capital city, Sofia. Chaira has generating capacity of and a pumping capacity of . The power plant is equipped with four reversible Francis pump-turbines, each rated at in the generating mode, and in pumping mode. Units 1 and 2 have been in operation since 1995, and at that time Chaira was the largest pumped-storage plant in southeast Europe with the highest head in the world for a single-stage pump turbine ( generating and pumping). Units 3 and 4 came online in 1999. The pump-turbines and motor-generators were supplied by Toshiba, and three of them were manufactured under Japanese supervision in Bulgaria. The upper basin for Chaira is formed by the Belmeken Dam which connects to the pumped storage plant by two headrace tunnels with a diameter of and two penstocks with diameter , reducing to . [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seattle City Light
Seattle City Light is the public utility providing electricity to Seattle, Washington, in the United States, and parts of its metropolitan area, including all of Shoreline and Lake Forest Park and parts of unincorporated King County, Burien, Normandy Park, SeaTac, Renton, and Tukwila. Seattle City Light is the 10th largest public utility in the United States and the first municipal utility in the US to own and operate a hydroelectric facility. In 2005, it became the first electric utility in the United States to fully offset all its carbon emissions and has remained carbon neutral every year since. Seattle City Light is a department of the City of Seattle and is governed by the Economic Development, Technology & City Light committee of the Seattle City Council. Overview The approximately 906,595 residents (461,496 metered customers) served by Seattle City Light use about 9,074,062 megawatt-hours annually. Seattle City Light was the first electric utility in the nation to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pend Oreille County, Washington
Pend Oreille County ( ) is a county located in the northeast corner of the U.S. state of Washington, along the Canada–US border. As of the 2020 census, the population was 13,401. The county seat and largest city is Newport. The county was created out of Stevens County on March 1, 1911. It is the most recently formed of the state's 39 counties. It is named after the Pend d'Oreilles tribe, who in turn were ostensibly named for large shell earrings that members wore. ("Pend d'oreille", while awkward in French, could be translated as "hangs from the ear".) Geography According to the United States Census Bureau, the county has a total area of , of which is land and (1.8%) is water. Highways * U.S. Route 2 * State Route 20 * State Route 31 * State Route 41 * State Route 211 *International Selkirk Loop Adjacent counties * Boundary County, Idaho – east *Bonner County, Idaho – east *Spokane County – south * Stevens County – west * Central Kootenay Regional District, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boundary Dam
Boundary Dam is a concrete arch gravity-type hydroelectric dam, finished in 1967, on the Pend Oreille River, in the U.S. state of Washington. The dam is located in the northeast corner of Washington state. It is operated by Seattle City Light and makes up a significant portion of the City of Seattle's energy portfolio. On average, it provides upwards of 46% of the power generated by Seattle City Light. Boundary Powerhouse, located adjacent to the dam, is completely built inside of the rock that makes up the left abutment of the dam itself. It has a nameplate capacity of just over 1 gigawatt of generation. The component of the hydroelectric project were listed on the National Register of Historic Places in 2018. The 1997 film ''The Postman'' was partially filmed at the dam. A facade of the town (Bridge City in the film) appeared on the face of the dam for a period of time that year. See also *List of dams in the Columbia River watershed There are more than 60 dams in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doubtful Sound
Doubtful Sound / Patea is a fiord in Fiordland, in the far south west of New Zealand. It is located in the same region as the smaller but more famous and accessible Milford Sound / Piopiotahi. It took second place after Milford Sound as New Zealand's most famous tourism destination. At long, Doubtful Sound / Patea is the second longest, and with a depth of up to the deepest of the South Island's fiords. In comparison with Milford Sound, it is more widespread, with the cliffs not as dramatically tall and near vertical. However, the U-shaped profile of the fiord is obvious, in particular on the two innermost of the main fiord's arms and the hanging side valleys along the main fiord. Like most of Fiordland, Doubtful Sound receives a high amount of rainfall, ranging from an annual average of . The vegetation on the mountainous landscape surrounding the fiord is dense native rainforest. History Doubtful Sound was named 'Doubtful Harbour' in 1770 by Captain Cook, who did not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Alps (New Zealand)
The Southern Alps (; officially Southern Alps / Kā Tiritiri o te Moana) is a mountain range extending along much of the length of New Zealand's South Island, reaching its greatest elevations near the range's western side. The name "Southern Alps" generally refers to the entire range, although separate names are given to many of the smaller ranges that form part of it. The range includes the South Island's Main Divide, which separates the water catchments of the more heavily populated eastern side of the island from those on the west coast. Politically, the Main Divide forms the boundary between the Marlborough, Canterbury and Otago regions to the southeast and the Tasman and West Coast regions to the northwest. Names The Māori name of the range is , meaning "the Mirage of the Ocean". The English explorer James Cook bestowed the name ''Southern Alps'' on 23 March 1770, admiring their "prodigious height". p. 384. They had previously been noted by Abel Tasman in 1642, whose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island country by area, covering . New Zealand is about east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps, owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and then developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiordland
Fiordland is a geographical region of New Zealand in the south-western corner of the South Island, comprising the westernmost third of Southland. Most of Fiordland is dominated by the steep sides of the snow-capped Southern Alps, deep lakes, and its steep, glacier-carved and now ocean-flooded western valleys. The name "Fiordland" comes from a variant spelling of the Scandinavian word for this type of steep valley, "fjord". The area of Fiordland is dominated by, and very roughly coterminous with, Fiordland National Park, New Zealand's largest National Park. Due to the often steep terrain and high amount of rainfall supporting dense vegetation, the interior of the Fiordland region is largely inaccessible. As a result, Fiordland was never subjected to notable logging operations, and even attempts at whaling, seal hunting, and mining were on a small scale and short-lived, partly also because of the challenging weather. Today, Fiordland contains by far the greatest extent of u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
