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Northfield Mountain Hydroelectric Facility
Northfield Mountain is a pumped-storage hydroelectric plant and reservoir located on and under the similarly named Northfield Mountain in Erving and Northfield, Massachusetts. It is currently owned by FirstLight Power Resources (formerly NE Energy), which purchased the facility from Northeast Utilities in 2006. History Engineering studies for the plant began in October 1964, with early site preparation starting three years later. In 1972 its 1,168 megawatt hydroelectric plant became operational as the largest such facility in the world. The facility was built to balance the supply from the nearby Vermont Yankee Nuclear Power Plant. Design The plant was built entirely underground, and located about up the Connecticut River from Turners Falls Dam. A stretch of the Connecticut River, extending some north from this dam to the Vernon Dam, Vermont, serves as the station's lower reservoir. During periods of lower electrical power demand, the plant pumps water from this lower reserv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pumped-storage Hydroelectricity
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power. Although the losses of the pumping process make the plant a net consumer of energy overall, the system increases revenue by selling more electricity during periods of peak demand, when electricity prices are highest. If the upper lake collects significant rainfall or is fed by a river then the plant may be a net energy producer in the manner of a traditional hydroelectric plant. Pumped-storage hydroelectricity allows energy from intermittent sources (such as solar, wind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Connecticut River
The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges at Long Island Sound. Its watershed encompasses , covering parts of five U.S. states and one Canadian province, via 148 tributaries, 38 of which are major rivers. It produces 70% of Long Island Sound's fresh water, discharging at per second. The Connecticut River Valley is home to some of the northeastern United States' most productive farmland, as well as the Hartford–Springfield Knowledge Corridor, a metropolitan region of approximately two million people surrounding Springfield, Massachusetts, and Hartford, Connecticut. History The word "Connecticut" is a corruption of the Mohegan word ''quinetucket'', which means "beside the long, tidal river". The word came into English during the early 1600s to name the river, which was also called simply "Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 1972
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramp Up
An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle from the vertical direction, with one end higher than the other, used as an aid for raising or lowering a load. The inclined plane is one of the six classical simple machines defined by Renaissance scientists. Inclined planes are used to move heavy loads over vertical obstacles. Examples vary from a ramp used to load goods into a truck, to a person walking up a pedestrian ramp, to an automobile or railroad train climbing a grade. Moving an object up an inclined plane requires less force than lifting it straight up, at a cost of an increase in the distance moved. The mechanical advantage of an inclined plane, the factor by which the force is reduced, is equal to the ratio of the length of the sloped surface to the height it spans. Owing to conservation of energy, the same amount of mechanical energy (work) is required to lift a given object by a given vertical distance, disregarding losses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbine
A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating electrical power when combined with a generator.Munson, Bruce Roy, T. H. Okiishi, and Wade W. Huebsch. "Turbomachines." Fundamentals of Fluid Mechanics. 6th ed. Hoboken, NJ: J. Wiley & Sons, 2009. Print. A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades so that they move and impart rotational energy to the rotor. Early turbine examples are windmills and waterwheels. Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid. Credit for invention of the steam turbine is given both to Anglo-Irish engineer Sir Charles Parsons (1854–1931) for invention of the reaction turbine, and to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northfield Mountain Tailrace Tunnel
The Northfield Mountain Tailrace Tunnel is a tunnel linking the Northfield Mountain pumped-storage hydroelectric facility to the Connecticut River in Millers Falls, Massachusetts Millers Falls is a census-designated place (CDP) in the towns of Montague and Erving in Franklin County, Massachusetts, United States. The population was 1,139 at the 2010 census. It is part of the Springfield, Massachusetts metropolitan stati .... References Northeast Generation Company SEC Filing, 12/6/01 {{coord, 42.613, N, 72.458, W, scale:10000, display=title Aqueducts in Massachusetts Transportation buildings and structures in Franklin County, Massachusetts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vermont
Vermont () is a state in the northeast New England region of the United States. Vermont is bordered by the states of Massachusetts to the south, New Hampshire to the east, and New York to the west, and the Canadian province of Quebec to the north. Admitted to the union in 1791 as the 14th state, it is the only state in New England not bordered by the Atlantic Ocean. According to the 2020 U.S. census, the state has a population of 643,503, ranking it the second least-populated in the U.S. after Wyoming. It is also the nation's sixth-smallest state in area. The state's capital Montpelier is the least-populous state capital in the U.S., while its most-populous city, Burlington, is the least-populous to be a state's largest. For some 12,000 years, indigenous peoples have inhabited this area. The competitive tribes of the Algonquian-speaking Abenaki and Iroquoian-speaking Mohawk were active in the area at the time of European encounter. During the 17th century, Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turners Falls, Massachusetts
Turners Falls is an unincorporated village and census-designated place in the town of Montague in Franklin County, Massachusetts, United States. The population was 4,512 at the 2020 census. It is part of the Springfield, Massachusetts Metropolitan Statistical Area. Its name is generally used as a metonym for the entire town of Montague, for which it is the business district and comprises more than half the population. Geography Turners Falls is located at (42.598943, -72.556809). According to the United States Census Bureau, the village has a total area of , of which is land and (17.02%) is water. Demographics As of the census of 2020, there were 4,512 people, 2,015 households, and 1,153 families residing in the CDP. The population density was 866.0/km (2,239.0/mi). There were 2,145 housing units at an average density of 418.3/km (1,081.4/mi). The racial makeup of the CDP was 94.93% White, 0.74% African American, 0.34% Native American, 0.97% Asian, 0.11% Pacific Islander, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WBUR-FM
WBUR-FM (90.9 FM) is a public radio station located in Boston, Massachusetts, owned by Boston University. It is the largest of three NPR member stations in Boston, along with WGBH and WUMB-FM and produces several nationally distributed programs, including ''On Point'', '' Here and Now'' and ''Open Source.'' WBUR previously produced ''Car Talk'', '' Only a Game'', and '' The Connection'' (which was cancelled on August 5, 2005). ''RadioBoston'', launched in 2007, is its only purely local show. WBUR's positioning statement is "Boston's NPR News Station". WBUR also carries its programming on two other stations serving Cape Cod and the Islands: WBUH (89.1 FM) in Brewster, and WBUA (92.7 FM) in Tisbury. The latter station, located on Martha's Vineyard, uses the frequency formerly occupied by WMVY."WBUR Buys Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northfield Mountain
Northfield Mountain, , is a mountain ridge located in Erving, Massachusetts, Erving and Northfield, Massachusetts. long by long, the mountain is composed of several distinct peaks and ledges, most notably Rattlesnake Mountain (also known as Farley Ledges, Farley Ledge) , Rose Ledges , and Hermit Mountain (the high point). A pumped-storage hydroelectricity, pumped-storage hydroelectric plant and reservoir occupies the top of the mountain west of the summit. The Metacomet-Monadnock Trail crosses the summit ridge of Northfield Mountain; a series of shorter hiking trails, Cross country skiing, cross country ski trails, a cross-country running course, and rock climbing routes are also located on the mountain and its ledges. Northfield Mountain is located at the confluence of the Connecticut River and Millers River. A waterfall, Briggs Brook Falls, plunges from its southeast side. Pumped-storage hydroelectricity facility Engineering studies began in October 1964, with early site pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vermont Yankee Nuclear Power Plant
Vermont Yankee was an electricity generating nuclear power plant, located in the town of Vernon, Vermont, in the northeastern United States. It generated 620 megawatts (MWe) of electricity at full power. The plant was a boiling water reactor (BWR), designed by General Electric. It operated from 1972 until December 29, 2014, when its owner Entergy shut down the plant. In 2008, the plant provided 71.8% of all electricity generated within Vermont, amounting to 35% of Vermont's electricity consumption. The plant is on the Connecticut River, upstream of the Vernon, Vermont Hydroelectric Dam and used the reservoir pool for its cooling water. In March 2012, the plant's initial 40-year operating license was scheduled to expire; in March 2011, the Nuclear Regulatory Commission (NRC) extended its license for another 20 years. Vermont Yankee's continued operations were complicated by the Vermont state legislature's enactment of a law providing the state legislature authority to determ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric
Hydroelectricity, or hydroelectric power, is 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 sources combined and also more than nuclear power. Hydropower can provide large amounts of 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. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
