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Rio Mesa Solar Project
The Rio Mesa Solar Electric Generating Facility was a proposed solar thermal power project in Riverside County, California. The developers for the project were subsidiaries of BrightSource Energy, Inc. The plant was expected to cost about $2 billion. The plant was to comprise two solar power towers, each with a generating capacity of . About 170,000 heliostats would have reflected sunlight to the receivers mounted on top of the towers. The project was scaled down from to 500 MW in May 2012, for which it has a power purchase agreement (PPA) with Southern California Edison (SCE). In December 2011, the California Energy Commission (CEC) accepted the application for certification for the Rio Mesa SEGF. In October 2012, Rio Mesa received preliminary approval from the CEC; final approval was needed by June 2013 to fulfill its PPA. However, the discovery of a large deposit of Pleistocene fossils underlying part of the project's area delayed approval or construction. In J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blythe, California
Blythe is a city in eastern Riverside County, California, United States. It is in the Palo Verde Valley of the Lower Colorado River Valley region, an agricultural area and part of the Colorado Desert along the Colorado River, approximately east of Los Angeles and west of Phoenix. Blythe was named after Thomas Henry Blythe, a San Francisco financier, who established primary water rights to the Colorado River in the region in 1877. The city was incorporated on July 21, 1916. The population was 18,317 at the 2020 census. History Etymology Blythe was named after Thomas Henry Blythe, a San Francisco businessman and entrepreneur. Mr. Blythe established primary water rights to the Colorado River in the southwestern California region in 1877. The town was originally named Blythe City, by Thomas Blythe himself, but the name was shortened to simply ''Blythe'' around the time the first post office was opened in 1908. Early years In the early or mid-1870s, William Calloway (kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Purchase Agreement
A power purchase agreement (PPA), or electricity power agreement, is a contract between two parties, one which generates electricity (the seller) and one which is looking to purchase electricity (the buyer). The PPA defines all of the commercial terms for the sale of electricity between the two parties, including when the project will begin commercial operation, schedule for delivery of electricity, penalties for under delivery, payment terms, and termination. A PPA is the principal agreement that defines the revenue and credit quality of a generating project and is thus a key instrument of project finance. There are many forms of PPA in use today and they vary according to the needs of buyer, seller, and financing counter parties. Contractual terms of a PPA may last anywhere between 5 and 20 years, during which time the power purchaser buys energy, and sometimes also capacity and/or ancillary services, from the electricity generator. Such agreements play a key role in the financin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KCET
KCET (channel 28) is a secondary PBS member television station in Los Angeles, California, United States. It is owned by the Public Media Group of Southern California alongside the market's primary PBS member, Huntington Beach–licensed KOCE-TV (channel 50). The two stations share studios at The Pointe (on West Alameda Avenue and Bob Hope Drive, between The Burbank Studios and Walt Disney Studios complexes) in Burbank; KCET's transmitter is located atop Mount Wilson in the San Gabriel Mountains (north of Sierra Madre). History Background of educational television in Southern California KCET was the second attempt at establishing an educational station in the Los Angeles area: KTHE, operated by the University of Southern California, had previously broadcast on channel 28, beginning on September 22, 1953. It was the second educational television station in the United States, signing on six months and four days after KUHT in Houston, but ceased broadcasting after only nine month ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Desert Sun
''The Desert Sun'' is a local daily newspaper serving Palm Springs and the surrounding Coachella Valley in Southern California. History ''The Desert Sun'' is owned by Gannett publications since 1988 and acquired the Indio ''Daily News'' in 1990 to become the sole local newspaper. First issued on August 5, 1927, as a weekly six-page newspaper, ''The Desert Sun'' grew with the desert communities it serves. It covers local, state, national and world news, and has developed a variety of sections over time. The newspaper began to publish six days a week in 1955 and had its first Sunday edition on September 8, 1991. Its circulation to date is 50,000 and their distribution range is in regional communities from Beaumont to Twentynine Palms to the Salton Sea. ''The Desert Sun''s headquarters are in Palm Springs, in an office complex built in 1991 to replace a smaller building. ''The Desert Sun'' publishes the ''Desert Post Weekly'', a variety entertainment paper available on every T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Energy Commission
The California Energy Commission, formally the Energy Resources Conservation and Development Commission, is the primary energy policy and planning agency for California. Created in 1974 and headquartered in Sacramento, the Commission'core responsibilitiesinclude: * Advancing State Energy Policy * Achieving Energy Efficiency * Investing in Energy Innovation * Developing Renewable Energy * Transforming Transportation * Overseeing Energy Infrastructure * Preparing for Energy Emergencies The Commission is a division of the California Natural Resources Agency, which is under the direction of Cabinet Secretary Wade Crowfoot. One of its prominent responsibilities is maintenance of the California Energy Code. History Charles Warren and Al Alquist, California politicians, co-authored the 1974 Warren–Alquist State Energy Resources Conservation and Development Act that created the Commission. The Act required that, prior to constructing or modifying an electric generating plant, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Press-Enterprise
''The Press-Enterprise'' is a paid daily newspaper published by Digital First Media that serves the Inland Empire in Southern California. Headquartered in downtown Riverside, California, it is the primary newspaper for Riverside County, with heavy penetration into neighboring San Bernardino County. The geographic circulation area of the newspaper spans from the border of Orange County to the west, east to the Coachella Valley, north to the San Bernardino Mountains, and south to the San Diego County line. ''The Press-Enterprise'' is a member of the Southern California News Group. The newspaper traces its roots to ''The Press'', which began publishing in 1878, and ''The Daily Enterprise'', which started publishing in 1885. The two papers were merged into one company in 1931, but the company did not begin publishing a daily morning paper named ''The Press-Enterprise'' until 1983. A. H. Belo acquired the company in 1998. In October 2013, A.H. Belo announced that it had reached an a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern California Edison
Southern California Edison (or SCE Corp), the largest subsidiary of Edison International, is the primary electricity supply company for much of Southern California. It provides 15 million people with electricity across a service territory of approximately 50,000 square miles. However, the Los Angeles Department of Water and Power, San Diego Gas & Electric (SDG&E), Imperial Irrigation District, and some smaller municipal utilities serve substantial portions of the southern California territory. The northern part of the state is generally served by the Pacific Gas & Electric Company of San Francisco. Other investor-owned utilities (IOUs) in California include SDG&E, PacifiCorp, Bear Valley Electric, and Liberty Utilities. Southern California Edison (SCE) still owns all of its electrical transmission facilities and equipment, but the deregulation of California's electricity market in the late 1990s forced the company to sell many of its power plants, though some were probably sold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliostat
A heliostat (from ''helios'', the Greek word for ''sun'', and ''stat'', as in stationary) is a device that includes a mirror, usually a plane mirror, which turns so as to keep reflecting sunlight toward a predetermined target, compensating for the sun's apparent motions in the sky. The target may be a physical object, distant from the heliostat, or a direction in space. To do this, the reflective surface of the mirror is kept perpendicular to the bisector of the angle between the directions of the sun and the target as seen from the mirror. In almost every case, the target is stationary relative to the heliostat, so the light is reflected in a fixed direction. According to contemporary sources the heliostata, as it was called at first, was invented by Willem 's Gravesande (1688–1742). Other contenders are Giovanni Alfonso Borelli (1608–1679) and Daniel Gabriel Fahrenheit (1686–1736). A Heliostat designed by George Johnstone Storey is in the Science Museum Group collec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riverside County, California
Riverside County is a County (United States), county located in the southern California, southern portion of the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 2,418,185, making it the fourth-most populous county in California and the List of the most populous counties in the United States, 10th-most populous in the United States. The name was derived from the city of Riverside, California, Riverside, which is the county seat. Riverside County is included in the Riverside-San Bernardino, California, San Bernardino-Ontario, California, Ontario Metropolitan Statistical Area, also known as the Inland Empire. The county is also included in the Los Angeles-Long Beach, California, Long Beach Greater Los Angeles Area, Combined Statistical Area. Roughly rectangular, Riverside County covers in Southern California, spanning from the greater Los Angeles area to the Arizona border. Geographically, the county is mostly desert in the central a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Power Tower
A solar power tower, also known as 'central tower' power plant or 'heliostat' power plant, is a type of solar furnace using a tower to receive focused sunlight. It uses an array of flat, movable mirrors (called heliostats) to focus the sun's rays upon a collector tower (the target). Concentrating Solar Power (CSP) systems are seen as one viable solution for renewable, pollution-free energy. Early designs used these focused rays to heat water, and used the resulting steam to power a turbine. Newer designs using liquid sodium have been demonstrated, and systems using molten salts (40% potassium nitrate, 60% sodium nitrate) as the working fluids are now in operation. These working fluids have high heat capacity, which can be used to store the energy before using it to boil water to drive turbines. These designs also allow power to be generated when the sun is not shining. Cost In 2021, the US National Renewable Energy Laboratory (NREL) estimated cost of electricity from concent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
