Marketplace Substation
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Marketplace Substation
The Marketplace substation is a major electric power interconnection point in the western United States outside of Boulder City, Nevada. The station is in the Eldorado Valley. Interconnects * 500 kV McCullough substation * 500 kV AC Adelanto substation, 1,291 MW, * 500 kV AC Mead substation, continues to Westwing via Perkins Switchyard, 1,923 MW, Power plants * 500 kV Copper Mountain Solar Facility Proposed * 500 kV AC Moenkopi substation , on hold Future Several high voltage direct current (HVDC) projects include a converter station An HVDC converter station (or simply converter station) is a specialised type of substation which forms the terminal equipment for a high-voltage direct current (HVDC) transmission line.Arrillaga, Jos; High Voltage Direct Current Transmission, se ..., which may be connected to Marketplace. Notes {{coord missing, Nevada Buildings and structures in Clark County, Nevada Western Interconnection Energy infrastructure in Nevada
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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 ...
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Boulder City, Nevada
Boulder City is a city in Clark County, Nevada, United States. It is approximately southeast of Las Vegas. As of the 2020 United States Census, 2020 census, the population of Boulder City was 14,885. The city took its name from Boulder Canyon (Colorado River), Boulder Canyon. Boulder City is one of only two places in Nevada that prohibits gambling, the other being the town of Panaca, Nevada, Panaca. History Beginnings as federal company town The land upon which Boulder City was founded was a harsh, desert environment. Its sole reason for existence was the need to house workers contracted to build the Hoover Dam on the Colorado River (known commonly as Boulder Dam from 1933 to 1947, when it was officially renamed Hoover Dam by a joint resolution of Congress). Men hoping for work on the dam project had begun settling along the river in tents soon after the precise site for the dam had been chosen by the Bureau of Reclamation in 1930. Their ramshackle edifices were collectively kno ...
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Southern California Public Power Authority
The Southern California Public Power Authority (SCPPA) is a joint powers authority, or a collective of 10 municipal utilities and one irrigation district in Southern California, United States. Description SCPPA was created in 1980 to help finance the acquisition of generation and transmission resources for its members. The SCPPA is composed of the municipal utilities of the cities of Anaheim, Azusa, Banning, Burbank, Cerritos, Colton, Glendale, Los Angeles, Pasadena, Riverside and Vernon, and the Imperial Irrigation District (Member Agencies). In 2016, SCPPA was the 14th largest public power system in the United States by net generation. See also * List of United States electric companies The following page lists electric utilities in the United States. Largest utilities by revenue (2022) Reference: List of US electric companies by state Alabama Alabama Municipal Electric AuthorityAlbertville Municipal Utilities Board Arab ... References Energy in Cali ...
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Eldorado Valley
Eldorado Valley, or El Dorado Valley, is a Great Basin valley in the Mojave Desert southeast of Las Vegas and southwest of Boulder City, Nevada. The valley is endorheic, containing the Eldorado Dry Lake. The Great Basin Divide, transects ridgelines and saddles, on the north, northeast, east, and south around the valley, as the valley sits on the east of the McCullough Range, a Great Basin massif, on the Great Basin Divide at its north terminus and its south terminus. Geography The north end of the valley contains a large salt pan, or dry lake, Dry Lake or Eldorado Playa, while the southern two thirds drains northwards. U.S. Route 95 traverses eastern portions of the valley, and climbs steeply to meet U.S. Route 93, connecting Boulder City to Henderson. The endorheic basin lies north of the ''Piute Wash Watershed'', of the north-south Piute Valley. The Piute Wash drains south, then southeast to the Colorado River. Highland Range Crucial Bighorn Habitat The southern valley incl ...
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McCullough Substation
McCullough is a Northern Irish surname. It is a variation of the Scottish McCulloch. In Irish Gaelic it's “''Mac Cú Uladh''”, which means ''“Son of Ulster”.'' People with the surname McCullough: * Alfred McCullough (born 1989), American football player * Alison McCullough, British speech and language therapist * Andrew McCullough (born 1990), Australian Rugby League player * Bernie Mac (born Bernard Jeffrey McCullough, 1957–2008), American comedian and actor * Billy McCullough (born 1935), Northern Ireland footballer * Brian McCullough (born 1985), American college baseball coach * Clayton McCullough (born 1979), American baseball coach * Clyde McCullough (1917–1982), Irish baseball player * Colleen McCullough (1937–2015), Australian author * Conde McCullough (1887–1946), American bridge engineer * David McCullough (1933–2022), American historian and author * Denis McCullough (1883–1968), Irish rebel in the early 20th century * Donald McCullough ...
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Adelanto Substation
Adelanto Converter Station in Adelanto, California, is the southern terminus of the 2,400 MW Path 27 Utah–California high voltage DC power (HVDC) transmission line. The station contains redundant thyristor-based HVDC converters rated for 1,200 MW continuous or 1,600 MW short term overload. The station was completed in July, 1986 at a cost of US$131 million. The northern terminus of Path 27 is fossil fueled Intermountain Power Plant in Utah. An adjacent $45 million AC switching station owned by Los Angeles Department of Water and Power links to the Southern California grid via five 500-kV AC lines. ABB, who had built the station in 1986, upgraded its original 1,600 MW capacity to 2,400 MW in 2011. In 2012, an 11.4 MW solar array (less than 1% of the Utah plant's capacity) was installed at the facility at a cost of $48 million obtained with loans subsidized by the American Recovery and Reinvestment Act of 2009. Interconnects Adelanto substation is connected to the followi ...
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Mead Substation
The Mead substation is a major electric power interconnection point in the western United States. The station is located in the El Dorado Valley of Nevada just outside of Boulder City, at the end of Buchanan Boulevard south of its grade separation with Interstate 11. The facility is owned and operated by the Western Area Power Administration. Interconnects * 2× 230 kV Amargosa substation (WAPA) to Henderson () * 230kV Camino substation East line (Metropolitan Water District) Path 58 * 230kV Camino substation West line (Metropolitan Water District) * 230kV Eldorado substation line 1 * 230kV Eldorado substation line 2 * 2× 230 kV McCullough substation (LADWP) * 230kV Newport substation line 1 ( Colorado River Commission) serving the Southern Nevada Water Authority pumping station () * 230kV Newport substation line 2 (Colorado River Commission) * 230 kV etcetera * 287kV Victorville Path 46 * 345kV to Liberty substation near Phoenix, Arizona () * 500kv Harry Allen Generating Stati ...
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Perkins Switchyard
Perkins is a surname derived from the Anglo-Saxon corruption of the kin of Pierre (from Pierre kin to Pierrekin to Perkins), introduced into England by the Norman Conquest. It is found throughout mid- and southern England. Another derivation comes from the Welsh Perthyn, relative or belonging to a particular person or family, and also thought to be the Anglicized form of Peredur, from medieval Welsh. Notable people with the surname * Al Perkins, American guitarist * Annie Stevens Perkins (1868–1911), American writer * Anthony Perkins (1932–1992), American actor * Benjamin Douglas Perkins (1774–1810), American, son of Elisha Perkins, bookseller and propagandist of therapy with "Perkins tractors" * Bill Perkins (other), several people * Bishop Perkins (1787–1866), member of New York State Assembly, later congressional Representative from New York * Bishop W. Perkins (1841–1894), U.S. Representative and Senator from Kansas * Brian Perkins, New Zealander anch ...
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Copper Mountain Solar Facility
The Copper Mountain Solar Facility is a 802  megawatt (MW AC) solar photovoltaic power plant in Boulder City, Nevada, United States. The plant was developed by Sempra Generation. When the first unit of the facility entered service on December 1, 2010, it was the largest photovoltaic plant in the U.S. at 58 MW. With the opening of Copper Mountain V in March 2021, it again became the largest in the United States. It is co-located with the 64 MW Nevada Solar One, 150 MW Boulder Solar, and 300 MW Techren Solar projects in the Eldorado Valley, thus forming a more than 1  gigawatt (GW) solar generating complex. By comparison, generating capacity at the nearby Hoover Dam is about 2 GW. History First unit Sempra Generation completed the 10 MW demonstration plant named " El Dorado Solar" near the existing El Dorado natural gas-fired power station and the Nevada Solar One concentrated solar power plant in December 2008. It was the c ...
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Moenkopi Substation
The Moenkopi Formation is a geological formation that is spread across the U.S. states of New Mexico, northern Arizona, Nevada, southeastern California, eastern Utah and western Colorado. This unit is considered to be a group in Arizona. Part of the Colorado Plateau and Basin and Range, this red sandstone was laid down in the Lower Triassic and possibly part of the Middle Triassic, around 240 million years ago. History of investigation There is no designated type locality for this formation. It was named for a development at the mouth of Moencopie Wash in the Grand Canyon area by Ward in 1901. In 1917 a 'substitute' type locality was located by Gregory in the wall of the Little Colorado Canyon, about 5 miles below Tanner Crossing in Coconino County, Arizona. While in the Great Basin, Bassler and Reeside characterized and named the Rock Canyon Conglomerate, Virgin Limestone, and Shnabkaib Shale members in 1921. Salt Creek (later replaced by Wupatki and Moqui Memb ...
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High Voltage Direct Current
A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. Most HVDC links use voltages between 100 kV and 800 kV. However, a 1,100 kV link in China was completed in 2019 over a distance of with a power capacity of 12 GW. With this dimension, intercontinental connections become possible which could help to deal with the fluctuations of wind power and photovoltaics. HVDC allows power transmission between AC transmission systems that are not synchronized. Since the power flow through an HVDC link can be controlled independently of the phase angle between source and load, it can stabilize a network against disturbances due to rapid changes in power. HVDC also allows the transfer of power between grid systems running at different frequencies, such as ...
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HVDC Converter
An HVDC converter converts electric power from high voltage alternating current (AC) to high-voltage direct current (HVDC), or vice versa. HVDC is used as an alternative to AC for transmitting electrical energy over long distances or between AC power systems of different frequencies.Arrillaga, Jos; High Voltage Direct Current Transmission, second edition, Institution of Electrical Engineers, , 1998, Chapter 1, pp 1-9. HVDC converters capable of converting up to two gigawatts (GW)Davidson, C.C., Preedy, R.M., Cao, J., Zhou, C., Fu, J., Ultra-High-Power Thyristor Valves for HVDC in Developing Countries, IET 9th International Conference on AC/DC Power Transmission, London, October 2010. and with voltage ratings of up to 900 kilovolts (kV)Skog, J.E., van Asten, H., Worzyk, T., Andersrød, T., Norned – World’s longest power cable, CIGRÉ session, Paris, 2010paper reference B1-106. have been built, and even higher ratings are technically feasible. A complete converter stati ...
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