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PJM Interconnection
PJM Interconnection LLC (PJM) is a regional transmission organization (RTO) in the United States. It is part of the Eastern Interconnection grid operating an electric transmission system serving all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and the District of Columbia. PJM, headquartered in Valley Forge, Pennsylvania, was the world's largest competitive wholesale electricity market until the development of the European Integrated Energy Market in the 2000s. More than 1,000 companies are members of PJM, which serves 65 million people and has 185 gigawatts of generating capacity. With 1,436 electric power generators and 85,103 miles of transmission lines, PJM delivered 783 terawatt-hours of electricity in 2021. Started in 1927, the pool was renamed the ''Pennsylvania-New Jersey-Maryland'' Interconnection (PJM) in 1956. The organization continues to integrate addition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most-populous city, and Fairfax County is the most-populous political subdivision. The Commonwealth's population was over 8.65million, with 36% of them living in the Baltimore–Washington metropolitan area. The area's history begins with several indigenous groups, including the Powhatan. In 1607, the London Company established the Colony of Virginia as the first permanent English colony in the New World. Virginia's state nickname, the Old Dominion, is a reference to this status. Slave labor and land acquired from displaced native tribes fueled the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constellation Energy
Constellation Energy Corporation () is an energy company headquartered in Baltimore, Maryland, United States. The company provides electric power, natural gas, and energy management services. It has approximately two million customers across the continental United States. The company was known as Constellation Energy Group, (former NYSE ticker symbol CEG) a Fortune 500 company and one of the largest electricity producers in the United States, until a merger with Exelon in 2012. When the acquisition was approved by FERC, Constellation Energy's energy supply business was re-branded as Constellation, an Exelon company. As part of the 2012 merger, Baltimore Gas and Electric, the regulated utility operated by Constellation Energy, became a regulated utility operating under Exelon Utilities. The current iteration of the company was founded in 2022 after splitting off from Exelon. Before merging with Exelon, Constellation Energy Group operated more than 35 power plants in 11 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Pool
Power pooling is used to balance electrical load over a larger network (electrical grid) than a single utility. It is a mechanism for interchange of power between two and more utilities which provide or generate electricity For exchange of power between two utilities there is an interchange agreement which is signed by them, but signing up an interchange agreement between each pair of utilities within a system can be a difficult task where several large utilities are interconnected. Thus, it is more advantageous to form a power pool with a single agreement that all join. That agreement provides established terms and conditions for pool members and is generally more complex than a bilateral agreement. In one model, the power pool, formed by the utilities, has a control dispatch office from where the pool is administered. All the tasks regarding interchange of power and the settlement of disputes are assigned to the pool administrator. The formation of power pools provide the followi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPL (utility)
PPL Corporation is an energy company headquartered in Allentown, Pennsylvania in the Lehigh Valley region of eastern Pennsylvania. The company is publicly traded on the New York Stock Exchange. History Pennsylvania Power & Light was founded in 1920 out of a merger of eight smaller Pennsylvania utilities. It gradually extended its service territory to a crescent-shaped region of central and northeastern Pennsylvania stretching from Lancaster through the Lehigh Valley into Scranton and Wilkes-Barre. In 1995, it reorganized as a holding company, PP&L Resources, which changed its name to its current name, PPL Corporation, in 2000. The company limited its activities to Pennsylvania until deregulation of electrical utilities in the 1990s encouraged PPL to purchase assets in other states. The largest of these transactions was PPL's 1998 purchase of 13 plants from Montana Power (leaving NorthWestern Energy – the buyer of the former Montana Power transmission and distribution systems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PECO Energy Company
PECO, formerly the Philadelphia Electric Company, is an energy company founded in 1881 and incorporated in 1929. It became part of Exelon Corporation in 2000 when it merged with Commonwealth Edison's holding company Unicom Corp. The company has approximately 2,300 employees; its call center and field craft personnel are members of IBEW Local 614. PECO serves about 1.6 million electric and over 511,000 natural gas customers; it is the largest combination utility in Pennsylvania, and has a franchise utility service area of with a population of 3.8 million people. Electricity and natural gas PECO operates in southeastern Pennsylvania and provides electricity to about 1.6 million customers and natural gas to over 511,000 customers. The company's electric service area covers all of the city of Philadelphia and Delaware County; most of Bucks, Chester, and Montgomery counties; and the southeastern corner of York County. The company's natural gas service area covers all of Delawar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Service Electric And Gas Company
The Public Service Enterprise Group (PSEG) is a publicly traded diversified energy company headquartered in Newark, New Jersey and was established in 1985 with a legacy dating back to 1903. The company's largest subsidiary is Public Service Electric and Gas Company (PSE&G). The Public Service Electric and Gas Company is a regulated gas and electric utility company established in 1928 serving the state of New Jersey and it is New Jersey's oldest and largest investor owned utility company; it was originally a subsidiary of the New-Jersey-based Public Service Corporation. History PSE&G/PSEG origins date back to 1903 with the defunct Public Service Corporation. Public Service Electric and Gas Company The Public Service Electric and Gas Company, commonly referred to as PSE&G, is the primary subsidiary of the Public Service Enterprise Group (PSEG) and was established in 1928. The Public Service Corporation was formed in 1903 by combining more than 400 gas, electric and transportati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tariff (other) , in some sports
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A tariff or customs duty is a tax on imported or exported goods. A tariff may also refer to: * Tariff, a schedule of prices for the sale or rental of a product or service * Tariff (regulation) a contract between a regulatory agency and a business, such as a utility company, which sets rates and conditions for the regulated service * Tariff (criminal law), in British criminal law, a minimum prison sentence * Tariff, Ohio, United States * Degree of difficulty Degree of difficulty (DD, sometimes called tariff or grade) is a concept used in several sports and other competitions to indicate the technical difficulty of a skill, performance, or course, often as a factor in scoring. Sports which incorporate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Energy Regulatory Commission
The Federal Energy Regulatory Commission (FERC) is the United States federal agency that regulates the transmission and wholesale sale of electricity and natural gas in interstate commerce and regulates the transportation of oil by pipeline in interstate commerce. FERC also reviews proposals to build interstate natural gas pipelines, natural gas storage projects, and liquefied natural gas (LNG) terminals, in addition to licensing non-federal hydropower projects. FERC is composed of five commissioners who are nominated by the U.S. president and confirmed by the U.S. Senate. There may be no more than three commissioners of one political party serving on the commission at any given time. Primary duties The responsibilities of FERC include the following: * Regulating the transmission and sale of natural gas for resale in interstate commerce; * Regulating the transmission of oil by pipelines in interstate commerce; * Regulating the transmission and wholesale sales of electricity i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terawatt-hour
A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a unit of energy: one kilowatt of power for one hour. In terms of SI derived units with special names, it equals 3.6 megajoules (MJ). Kilowatt-hours are a common billing unit for electrical energy delivered to consumers by electric utilities. Definition The kilowatt-hour is a composite unit of energy equal to one kilowatt (kW) sustained for (multiplied by) one hour. Expressed in the standard unit of energy in the International System of Units (SI), the joule (symbol J), it is equal to 3,600 kilojoules or 3.6 MJ."Half-high dots or spaces are used to express a derived unit formed from two or more other units by multiplication.", Barry N. Taylor. (2001 ed.''The International System of Units.'' (Special publication 330). Gaithersburg, MD: National Institute of Standards and Technology. 20. Unit representations A widely used representation of the kilowatt-hour is "kWh", derived from its compone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gigawatt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own 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, the rate at which 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 potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). : \m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electricity Market
In a broad sense, an electricity market is a system that facilitates the exchange of electricity-related goods and services. During more than a century of evolution of the electric power industry, the economics of the electricity markets had undergone enormous changes for reasons ranging from the technological advances on supply and demand sides to politics and ideology. A restructuring of electric power industry at the turn of the 21st century involved replacing the vertically integrated and tightly regulated "traditional" electricity market with multiple competitive markets for electricity generation, transmission, distribution, and retailing. The traditional and competitive market approaches loosely correspond to two visions of industry: the deregulation was transforming electricity from a public service (like sewerage) into a tradable good (like crude oil). As of 2020s, the traditional markets are still common in some regions, including large parts of the United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
