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Vermont Yankee Nuclear Power Plant

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142-396: 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,

284-602: A nuclear power station ( NPS ), nuclear generating station ( NGS ) or atomic power station ( APS ) is a thermal power station in which the heat source is a nuclear reactor . As is typical of thermal power stations, heat is used to generate steam that drives a steam turbine connected to a generator that produces electricity . As of September 2023 , the International Atomic Energy Agency reported that there were 410 nuclear power reactors in operation in 32 countries around

426-569: A spring near the current downtown fire station. Until the water cure closed in 1871, the town was widely known as a curative health resort. Other industries began to appear in the town under the initiation of the businessman John Holbrook , who initiated firms like the Brattleboro Typographic Company . These businesses initiated a decade of very successful printing industry in the town. Whetstone Falls, very close to where Brattleboro's Whetstone Brook flows into

568-428: A 10-year power purchase agreement (PPA) under which three of the former owners committed to purchase a portion of the electricity produced by the reactor at a cost of approximately 4.5 cents per kilowatt hour. On May 6, 2006, Vermont Yankee achieved its power of 1,912 MWth (120% of its original licensed thermal power of 1,593 MW-thermal) because of an NRC approved Extended Power Uprate. The power increase

710-476: A Certificate of Public Good to install an outdoor diesel generator to replace a tie line from the nearby hydroelectric station as its station blackout power source. The outdoor generator would only operate if the plant's main emergency diesel generators located inside the turbine building were to fail. The outdoor generator is a self-contained unit that does not require cooling water from the plant's cooling water systems. The new generator would power instrumentation in

852-502: A Selectboard of five members, and by several dozen town representatives elected from three municipal districts. The Selectboard, meeting on average every week or two, is considered part of the 'executive branch' of town government; its five members being elected to fill three one-year positions and two three-year positions. In turn, the Selectboard hires and supervises a full-time town manager. The town's three districts also each elect

994-465: A condenser. The condenser is a heat exchanger which is connected to a secondary side such as a river or a cooling tower . The water is then pumped back into the steam generator and the cycle begins again. The water-steam cycle corresponds to the Rankine cycle . The nuclear reactor is the heart of the station. In its central part, the reactor's core produces heat due to nuclear fission. With this heat,

1136-442: A coolant is heated as it is pumped through the reactor and thereby removes the energy from the reactor. The heat from nuclear fission is used to raise steam, which runs through turbines , which in turn power the electrical generators. Nuclear reactors usually rely on uranium to fuel the chain reaction. Uranium is a very heavy metal that is abundant on Earth and is found in sea water as well as most rocks. Naturally occurring uranium

1278-506: A cooling tower collapse in 2007, and other problems. Some businesses in Vermont were concerned there was an absence of a clear plan to replace the electricity generated by the plant. A spokesman for IBM, the largest private employer in the state, and the state's largest consumer of electricity, said "we have to be smarter than this". Larry Reilly, president of Central Vermont Public Service Corp., Vermont's largest utility, stated in 2011 that he

1420-402: A facility has been completely decommissioned it is released from regulatory control, and the licensee of the station no longer has responsibility for its nuclear safety. Generally speaking, nuclear stations were originally designed for a life of about 30 years. Newer stations are designed for a 40 to 60-year operating life. The Centurion Reactor is a future class of nuclear reactor that

1562-782: A joint statement decrying the NRC's action and noting the similarity of Vermont Yankee to units then in partial meltdown at the Fukushima Daiichi power station, Japan. In March 2012, more than 130 protesters were arrested at the corporate headquarters of the Vermont Yankee nuclear power plant, on the first day of the plant's operation after the expiration of its original 40-year license. In March 2013, more than 500 people, carrying banners and chanting "shut it down", marched through downtown Brattleboro in protest against Vermont Yankee. The Nuclear Regulatory Commission's estimate of

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1704-557: A large shipping and warehouse facility in Brattleboro near I-91's Exit 3. Ehrmann Commonwealth Dairy is headquartered in Brattleboro and operates a dairy processing facility in the town that opened in 2011. New Chapter , an organic vitamin and supplement maker is headquartered in Brattleboro. The town's densely populated center is located near Vermont's lowest elevation point in the Connecticut river valley. Because of

1846-412: A major economic force in Brattleboro for many years. In 1871, Thomas P. James, "The Spirit Pen of Dickens", a printer by trade, moved to Brattleboro, where he took a job at The Vermont Farmer and Record. James claimed that the departed spirit of Charles Dickens had given him a communication during at a seance on Oak Street. According to James, Dickens' spirit conveyed that he had chosen James to write down

1988-534: A member of a special oversight panel convened by the Vermont General Assembly , confirmed that radioactive contamination had been detected in underground pipes. An Entergy spokesperson told Vermont Public Radio (VPR) that the earlier testimony was a "miscommunication." On June 4, 2010, VPR reported that, because they had provided misleading information, Entergy Nuclear would be liable for legal expenses incurred by certain parties. In January 2010,

2130-437: A member of the wealthy Salisbury family with ties to Brattleboro's printing and paper making industries. British author Rudyard Kipling settled in Brattleboro after marrying a young Brattleboro woman, Carrie Balestier, in 1892. The couple built a home called Naulakha , just over the town line to the north in neighboring Dummerston . Kipling wrote The Jungle Book and other works there. He also wrote about local life in

2272-404: A nuclear reactor heats the reactor coolant. The coolant may be water or gas, or even liquid metal, depending on the type of reactor. The reactor coolant then goes to a steam generator and heats water to produce steam. The pressurized steam is then usually fed to a multi-stage steam turbine . After the steam turbine has expanded and partially condensed the steam, the remaining vapor is condensed in

2414-683: A nuclear reactor was used to generate electricity was on December 21, 1951, at the Experimental Breeder Reactor I , powering four light bulbs. On June 27, 1954, the world's first nuclear power station to generate electricity for a power grid , the Obninsk Nuclear Power Plant , commenced operations in Obninsk , in the Soviet Union . The world's first full scale power station, Calder Hall in

2556-483: A nuclear station is smaller than the fuel cost for operation of coal or gas plants. Since most of the cost of nuclear power plant is capital cost, there is almost no cost saving by running it at less than full capacity. Nuclear power plants are routinely used in load following mode on a large scale in France, although "it is generally accepted that this is not an ideal economic situation for nuclear stations". Unit A at

2698-516: A number of long-established projects are struggling to find financing, notably Belene in Bulgaria and the additional reactors at Cernavodă in Romania , and some potential backers have pulled out. Where cheap gas is available and its future supply relatively secure, this also poses a major problem for nuclear projects. Analysis of the economics of nuclear power must take into account who bears

2840-488: A pipe tunnel contained 2,600 picocuries/kg, but contamination outside the pipe tunnel was limited to a small volume, about 150 cubic feet (4.2 m) of soil. According to the Vermont State Department of Health, there was no health risk from the cesium, as the quantities were small and it had not migrated. Since cesium-137 is a fission product, it is an indicator of a nuclear fuel leak, but the consensus

2982-444: A previous goal aimed to reduce nuclear electricity generation share to lower than fifty percent by 2025, this target was postponed to 2035 in 2019 and ultimately discarded in 2023. Russia continues to export the most nuclear power plants in the world, with projects across various countries: as of July 2023, Russia was constructing 19 out of 22 reactors constructed by foreign vendors; however, some exporting projects were canceled due to

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3124-500: A radius of 10 miles (16 km), concerned primarily with exposure to, and inhalation of, airborne radioactive contamination, and an ingestion pathway zone of about 50 miles (80 km), concerned primarily with ingestion of food and liquid contaminated by radioactivity. The 2010 U.S. population within 10 miles (16 km) of Vermont Yankee was 35,284, an increase of 1.4 percent in a decade, according to an analysis of U.S. Census data. The 2010 U.S. population within 50 miles (80 km)

3266-571: A representative to the Vermont House of Representatives. Brattleboro is represented at the national level by U.S. senators Bernie Sanders and Peter Welch , and by Congresswoman Becca Balint , who also represents Vermont's entire at-large federal congressional district. At the state level in Montpelier : Brattleboro has a diverse mix of public and private primary, secondary and post-secondary schools and career centers. Sub-campuses of

3408-591: A significantly different evaluation of the economics of new nuclear power stations. Following the 2011 Fukushima nuclear accident in Japan , costs are likely to go up for currently operating and new nuclear power stations, due to increased requirements for on-site spent fuel management and elevated design basis threats. However many designs, such as the currently under construction AP1000, use passive nuclear safety cooling systems, unlike those of Fukushima I which required active cooling systems, which largely eliminates

3550-413: A slight decrease from the 2653 TWh produced in 2021. Thirteen countries generated at least one-quarter of their electricity from nuclear sources. Notably, France relies on nuclear energy for about 70% of its electricity needs, while Ukraine , Slovakia , Belgium , and Hungary source around half their power from nuclear. Japan , which previously depended on nuclear for over a quarter of its electricity,

3692-427: A small enough volume to become supercritical. Most reactors require continuous temperature control to prevent a core meltdown , which has occurred on a few occasions through accident or natural disaster, releasing radiation and making the surrounding area uninhabitable. Plants must be defended against theft of nuclear material and attack by enemy military planes or missiles. The most serious accidents to date have been

3834-482: A three-year research study of offshore floating nuclear power generation. In October 2022, NuScale Power and Canadian company Prodigy announced a joint project to bring a North American small modular reactor based floating plant to market. The economics of nuclear power plants is a controversial subject, and multibillion-dollar investments ride on the choice of an energy source. Nuclear power stations typically have high capital costs, but low direct fuel costs, with

3976-472: A trading post for commerce among the colonial settlers and the Indians . But violence flared up from time to time throughout the first half of the 18th century. In 1744, what became known as King George's War broke out, lasting until 1748. During this period a small body of British colonial troops were posted at the fort, but after 1750 this was considered unnecessary. Although the area was originally part of

4118-477: A tri-annual inspection July–August 2008. It found three "minor faults." An Associated Press report said that it had won "high marks." In May 2009, the vice-president of operations at Vermont Yankee told the PSB during the reliability review that he did not believe there was any radioactively contaminated underground piping at the plant, but that he would check and respond to the panel. In October 2009, Arnold Gundersen ,

4260-502: A water leak caused by a faulty weld caused a "conservative" four-day shutdown while the pipe involved was repaired. A company spokesman said that "if plant managers had known on Sunday night what they knew on Monday, they might have tried to fix the leak while the plant kept running." In 2010, Vermont Electric Power Company constructed a new substation, designated as the Vernon Substation, on the Vermont Yankee site to serve as

4402-580: A worldwide perspective, long-term waste storage costs are uncertain. Construction, or capital cost aside, measures to mitigate global warming such as a carbon tax or carbon emissions trading , increasingly favor the economics of nuclear power. Further efficiencies are hoped to be achieved through more advanced reactor designs, Generation III reactors promise to be at least 17% more fuel efficient, and have lower capital costs, while Generation IV reactors promise further gains in fuel efficiency and significant reductions in nuclear waste. In Eastern Europe,

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4544-520: Is about 1/3 of solar and 1/45 of natural gas and 1/75 of coal . Newer models, like HPR1000 , produce even less carbon dioxide during the whole operating life, as little as 1/8 of power plants using gen II reactors for 1.31g/kWh. Brattleboro, Vermont Brattleboro ( / ˈ b r æ t əl b ʌr oʊ / ), originally Brattleborough , is a town in Windham County, Vermont , United States, located about 10 miles (16 km) north of

4686-527: Is anticipated to resume similar levels of nuclear energy utilization. Over the last 15 years, the United States has seen a significant improvement in the operational performance of its nuclear power plants, enhancing their utilization and efficiency, adding the output equivalent to 19 new 1000 MWe reactors without actual construction. In France, nuclear power plants still produce over sixty percent of this country's total power generation in 2022. While

4828-503: Is being designed to last 100 years. One of the major limiting wear factors is the deterioration of the reactor's pressure vessel under the action of neutron bombardment, however in 2018 Rosatom announced it had developed a thermal annealing technique for reactor pressure vessels which ameliorates radiation damage and extends service life by between 15 and 30 years. Nuclear stations are used primarily for base load because of economic considerations. The fuel cost of operations for

4970-431: Is found in two different isotopes : uranium-238 (U-238), accounting for 99.3% and uranium-235 (U-235) accounting for about 0.7%. U-238 has 146 neutrons and U-235 has 143 neutrons. Different isotopes have different behaviors. For instance, U-235 is fissile which means that it is easily split and gives off a lot of energy making it ideal for nuclear energy. On the other hand, U-238 does not have that property despite it being

5112-704: Is one public middle school, the Brattleboro Area Middle School (BAMS), and one public high school, the Brattleboro Union High School (BUHS). The Windham Southeast Supervisory Union, which oversees the public school system in the southeastern corner of Windham County , also administers a dedicated vocational education unit, the Windham Regional Career Center. Oak Meadow , a K–12 homeschool curriculum provider and distance learning school

5254-507: Is the driest. Brattleboro averages 92.58 inches (235 cm) of snow annually. Brattleboro lies in USDA plant hardiness zone 5a. As of the census of 2010, there were 12,046 people, 5,364 households, and 2,880 families residing in the town. Almost all of the population is concentrated in two census-designated places identified in the town: Brattleboro and West Brattleboro . The results of recent censuses indicate very little change in

5396-437: Is the first major town one encounters crossing northward by automobile from Massachusetts on Interstate 91 , and is accessed via Vermont exits 1, 2, and 3 from that thoroughfare. It offers a mix of a rural atmosphere and urban amenities including a number of lodging establishments. Brattleboro also hosts art galleries, stores, and performance spaces, mostly located in the downtown area. In 2007, after meeting qualifying criteria,

5538-429: Is the only nuclear facility that does not use a natural body of water for cooling, instead it uses treated sewage from the greater Phoenix metropolitan area. The water coming from the cooling body of water is either pumped back to the water source at a warmer temperature or returns to a cooling tower where it either cools for more uses or evaporates into water vapor that rises out the top of the tower. The water level in

5680-489: The BWR , the steam is directed into the suppression chamber and condenses there. The chambers on a heat exchanger are connected to the intermediate cooling circuit. The main condenser is a large cross-flow shell and tube heat exchanger that takes wet vapor, a mixture of liquid water and steam at saturation conditions, from the turbine-generator exhaust and condenses it back into sub-cooled liquid water so it can be pumped back to

5822-877: The Community College of Vermont and Vermont Technical College are located in Brattleboro; in the downtown's newly renovated Brooks House. Brattleboro was also home to the New England Academic Center of Union Institute and University , housed in the Marlboro College Graduate Center building. SIT Graduate Institute , formerly known as the School for International Training , is a private higher education institution in northern Brattleboro. An outgrowth of The Experiment in International Living , which

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5964-693: The Dartmouth Outing Club (1909–1910), also establishing the Brattleboro Outing Club (in 1922), contributing to the first North American use of motor-driven ski lifts, and building the Harris Hill olympic-scale ski jumping facility , the site of international competitions every February that still attract daring ski-jumping athletes from all over the world. Brattleboro employs a representative town meeting local government, wherein its citizens are represented at-large by

6106-589: The Equivalent Lands , the township became one of the New Hampshire grants , and was chartered (founded) as such on December 26, 1753, by Governor Benning Wentworth . It was named Brattleborough, after Brigadier-General William Brattle , Jr. of Boston , a military officer, cleric, slaveholder as well as a principal proprietor. Ironically, there is no record that Brattle ever visited the locality, and settlement activities remained tentative until after

6248-636: The Holstein/Friesian Cattle Association, which houses and maintains the worldwide registries for those two breeds. Brooks Memorial Library houses a town historical archive, fine art paintings, and sculptures. Brattleboro has a thriving arts community. It was listed in John Villani's book The 100 Best Small Art Towns in America , in which it was ranked #9 among 'arts towns' with a population of 30,000 or less. On

6390-641: The Massachusetts state line at the confluence of Vermont's West River and the Connecticut River . With a 2022 Census population of 12,106, it is the most populous municipality abutting Vermont's eastern border with New Hampshire , which is the Connecticut River . The town has been important to the history of Vermont, acting as a gateway for trade on both the Connecticut River and subsequent road and train infrastructure. Moreover

6532-508: The NRC as this exceeds their power of judicial review . On July 31, 2002, Entergy Nuclear Vermont Yankee, LLC (EVY) purchased the plant from Vermont Yankee Nuclear Power Corporation (VYNPC) for $ 180 million. Entergy received the reactor complex, nuclear fuel, inventories, and related real estate, as well as the liability to decommission the plant and related decommissioning trust funds of approximately $ 310 million. The acquisition included

6674-496: The Russian invasion of Ukraine . Meanwhile, China continues to advance in nuclear energy: having 25 reactors under construction by late 2023, China is the country with the most reactors being built at one time in the world. Nuclear decommissioning is the dismantling of a nuclear power station and decontamination of the site to a state no longer requiring protection from radiation for the general public. The main difference from

6816-678: The UAE launched the Arab region's first-ever nuclear energy plant. Unit 1 of the Barakah plant in the Al Dhafrah region of Abu Dhabi commenced generating heat on the first day of its launch, while the remaining 3 Units are being built. However, Nuclear Consulting Group head, Paul Dorfman, warned the Gulf nation's investment into the plant as a risk "further destabilizing the volatile Gulf region, damaging

6958-657: The United Kingdom , opened on October 17, 1956 and was also meant to produce plutonium . The world's first full scale power station solely devoted to electricity production was the Shippingport Atomic Power Station in Pennsylvania , United States, which was connected to the grid on December 18, 1957. The conversion to electrical energy takes place indirectly, as in conventional thermal power stations. The fission in

7100-615: The United States Census Bureau , the town has a total area of 32.5 square miles (84.0 km ), of which 32.0 square miles (82.9 km ) is land and 0.5 square mile (1.2 km , 1.42%) is water. Brattleboro is drained by the West River , Ames Hill Brook and Whetstone Brook. The town is in the Connecticut River Valley , and its eastern boundary (and the Vermont state line) is

7242-656: The Vermont state legislature's enactment of a law providing the state legislature authority to determine the continued operation of the plant, in addition to the federal government. Entergy requested a new state certificate of public good (CPG), but the Vermont legislature voted in February 2010 against renewed permission to operate. In January 2012, Entergy won a court case, invalidating the state's veto power on continued operations. In August 2013, Entergy announced that due to economic factors Vermont Yankee would cease operations in

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7384-594: The Vermont Jazz Center . The town operates and maintains the Gibson-Aiken Center, a large recreation and community activities facility, located downtown on Main Street, along with a number of parks and outdoor recreation centers, including Living Memorial Park , whose features include an outdoor swimming pool and a municipal skiing facility. There are bicycle lanes on Putney Road in

7526-474: The Vermont Valley Railroad , the town prospered as a regional center for trade in commodities including grain, lumber, turpentine , tallow and pork. In 1888, the spelling of the town's name was shortened to Brattleboro. The Estey Organ company, the largest organ manufacturer in the United States, operated in Brattleboro for about a century beginning in 1852. The company's main factory

7668-499: The Whetstone Brook allowed the development of several mill industries that relied on water power. The town rose to national and international recognition because of several major industries in the town during the 19th century: several bookbinding companies, including Brattleboro Typographic Company which produced bibles, and Estey Organ , one of the largest manufacturers of pipe organs in the world. Both industries shrank in

7810-979: The Windham Art Gallery . Gallery Walk is a mid-1990s creation of, and continues to be sponsored by, the Arts Council of Windham County . Other arts organizations in Brattleboro include the Brattleboro Music Center , the Vermont Theatre Company , the New England Youth Theater , the Brattleboro Women's Chorus, the New England Center for Circus Arts (NECCA), the Vermont Performance Lab , and

7952-416: The 1763 Treaty of Paris , when France abandoned their claims to Vermont, part of the region which they had called New France . Hostilities having ceased, Brattleboro developed quickly in peacetime, and soon was second to no other settlement in the state for business and wealth. In 1771, Stephen Greenleaf opened Vermont's first store in the east village, and in 1784, a post office was established. A bridge

8094-401: The 1960s and 1970s following the construction of Interstate 91, which runs north-south through the town. The area has little residential development and is dominated by larger commercial and industrial establishments and suburban-style shopping areas along Putney Road , including seven chain hotels and motels located within a short distance of each other. Brattleboro is also the headquarters of

8236-424: The 1970s and 1980s, when it "reached an intensity unprecedented in the history of technology controversies," in some countries. Proponents argue that nuclear power is a sustainable energy source which reduces carbon emissions and can increase energy security if its use supplants a dependence on imported fuels. Proponents advance the notion that nuclear power produces virtually no air pollution, in contrast to

8378-485: The 1979 Three Mile Island accident , the 1986 Chernobyl disaster , and the 2011 Fukushima Daiichi nuclear disaster , corresponding to the beginning of the operation of generation II reactors . Professor of sociology Charles Perrow states that multiple and unexpected failures are built into society's complex and tightly coupled nuclear reactor systems. Such accidents are unavoidable and cannot be designed around. An interdisciplinary team from MIT has estimated that given

8520-572: The Brussels supplementary convention, and the Vienna Convention on Civil Liability for Nuclear Damage . However states with a majority of the world's nuclear power stations, including the U.S., Russia, China and Japan, are not party to international nuclear liability conventions. The nuclear power debate about the deployment and use of nuclear fission reactors to generate electricity from nuclear fuel for civilian purposes peaked during

8662-466: The Connecticut River near the site of what would later become known as Brattleboro. Lieutenant-governor William Dummer signed the measure, and construction of Fort Dummer began on February 3, 1724. It was completed before summer. On October 11 of that year, the French attacked the fort and killed some soldiers. In 1725, Dummer's War ended. By 1728, and in subsequent peaceful periods, the fort served as

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8804-512: The Connecticut River on Vernon Road (VT Route 142), at the corner of Cotton Mill Hill. The western section of town, built up around Vermont's east-west Route 9 , was formally designated a village in 2005. It is mostly lower-density residential in character, and features the state's largest mobile home park and several planned housing developments and subdivisions. Away from the Route 9 conduit, other parts of western Brattleboro and some areas north of

8946-435: The Connecticut River, was a handy source of water power for watermills , initially a sawmill and a gristmill . By 1859, when the population had reached 3,816, Brattleboro had a woolen textile mill, a paper mill, a manufacturer of papermaking machinery, a factory making melodeons , two machine shops, a flour mill, a carriage factory, and four printing establishments. Connected by the Vermont & Massachusetts Railroad and

9088-713: The Heifers and the Brattleboro Literary Festival . The location was called Wantastegok or "Wantastiquet" by the indigenous Sokoki band of Abenaki that resided in the area before settlement by Europeans. To defend the Massachusetts Bay Colony against Chief Gray Lock and others during Dummer's War , the Massachusetts General Court voted on December 27, 1723, to build a blockhouse and stockade on

9230-700: The New England Coalition on Nuclear Pollution in opposing construction of Vermont Yankee. In the 1970s and 1980s there were many anti-nuclear protests at Vermont Yankee which attempted to block access to the plant. More recent protests include: In February 2010, the Vermont Senate voted 26 to 4 against allowing the PSB to consider re-certifying the Vermont Yankee Nuclear Plant after 2012, citing radioactive tritium leaks, misstatements in testimony by plant officials,

9372-581: The Regional Career Center are also located in this section, as is Fort Dummer State Park, which is named after the first European settlers' 1724 stockade. The original Fort's site, however, was flooded in the early 20th century by a flood-control and hydro-electric dam built just downstream in Vernon, Vermont . An historical marker is located near the Fort's now-underwater site, on the west bank of

9514-814: The Senate's blocking vote. On August 14, 2013, the United States Court of Appeals for the Second Circuit ruled, upholding a lower court's decision that allowed the Vermont Yankee plant to keep running despite a seven-year effort by the Vermont Legislature to close it, finding that states are "pre-empted" from regulating safety by the Atomic Energy Act of 1946, which made safety a federal responsibility. On August 28, 2013, Entergy announced that due to economic factors, notably

9656-566: The Vermont Department of Health reported that tritium , a radioactive isotope of hydrogen, had been discovered in a sample of ground water taken from a monitoring well the previous November. The level of the isotope was initially below the acceptable limit for drinking water set by the Environmental Protection Agency . By mid-January, however, the level had risen to 20,000 picocuries per liter (pCi/L),

9798-589: The Vermont Yankee Nuclear Power Station near Brattleboro, Vermont, for an additional 20 years. On March 21, 2011, the Nuclear Regulatory Commission issued their renewal of the operating license for the Vermont Yankee plant for an additional 20 years.; the renewed license will expire March 21, 2032. On April 14, 2011, Entergy, the owner of Vermont Yankee, sued the state of Vermont to stay open despite

9940-501: The Vermont Yankee substation now connect to the Vernon substation, and three tie-lines, one at 115 kV and two at 345 kV, connect the Vermont Yankee substation to the Vernon substation. Each 345 kV tie line is capable of carrying the full power output of the plant. During the week of January 17, 2011, tritium was detected at a level of 9,200 picocuries per liter (below the federally required reporting level) in an area 150–200 feet north of

10082-434: The West River have a decidedly rural character, with dirt roads, sparse housing, wooded Green Mountains foothills, and the last few farms left in the town following the 1970s' decline of the dairy industry. At its peak, the immediate Brattleboro area had over 170 farms; there are now less than a dozen remaining. The section of Brattleboro north of the West River , formerly farmland, was mostly subdivided and developed during

10224-515: The abandonment of farms. The first person to receive a U.S. Social Security benefit check, issued on January 31, 1940, was Ida May Fuller from Brattleboro. On May 12, 1950, auctioneer Emma Bailey held her first auction in Brattleboro, selling a rocking chair for $ 2.50. She was the first American woman auctioneer, and later became the first woman admitted to the National Auctioneers Association . According to

10366-403: The average family size was 2.84. In the town, the population was spread out, with 22.3% under the age of 18, 6.6% from 18 to 24, 29.2% from 25 to 44, 25.3% from 45 to 64, and 16.6% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 84.0 males. For every 100 females age 18 and over, there were 79.9 males. The median income for a household in the town

10508-557: The chief viable alternative of fossil fuel. Proponents also believe that nuclear power is the only viable course to achieve energy independence for most Western countries. They emphasize that the risks of storing waste are small and can be further reduced by using the latest technology in newer reactors, and the operational safety record in the Western world is excellent when compared to the other major kinds of power plants. Opponents say that nuclear power poses many threats to people and

10650-429: The circulating water system and the service water system. The circulating water system removed heat from the power generation process of the plant by cooling the plant's main condenser. The service water system cooled both safety and non-safety related auxiliary components in the nuclear facility and the turbine facility of the plant, and absorbed decay heat from the reactor's cooling systems in emergencies or in times when

10792-424: The contaminated ground water with respect to off-site effluent release limits and the resulting radiological impact to public health and safety; and that ENVY complied with all applicable regulatory requirements and standards pertaining to radiological effluent monitoring, dose assessment, and radiological evaluation. No violations of NRC requirements or findings of significance were identified. In early November 2010,

10934-436: The control room and would be capable of providing emergency AC power to one train of each of the plant's emergency cooling systems. On August 27, 2013, Entergy announced in a press release that it would close Vermont Yankee by the end of 2014. Among the reasons cited for the closure were ongoing low energy prices resulting from increased shale gas production, and the high operating costs of the plant. In 1971, Esther Poneck led

11076-493: The costs of fuel extraction, processing, use and spent fuel storage internalized costs. Therefore, comparison with other power generation methods is strongly dependent on assumptions about construction timescales and capital financing for nuclear stations. Cost estimates take into account station decommissioning and nuclear waste storage or recycling costs in the United States due to the Price Anderson Act . With

11218-424: The destruction of a turbine in operation from flying towards the reactor. In the case of a pressurized water reactor, the steam turbine is separated from the nuclear system. To detect a leak in the steam generator and thus the passage of radioactive water at an early stage, an activity meter is mounted to track the outlet steam of the steam generator. In contrast, boiling water reactors pass radioactive water through

11360-458: The dismantling of other power stations is the presence of radioactive material that requires special precautions to remove and safely relocate to a waste repository. Decommissioning involves many administrative and technical actions. It includes all clean-up of radioactivity and progressive demolition of the station. Once a facility is decommissioned, there should no longer be any danger of a radioactive accident or to any persons visiting it. After

11502-426: The early 1890s: heavy snowfalls, ox-teams drawing sledges, and people in the small towns beset with what he called a "terrifying intimacy" about each other's lives. He recorded the death of men who had left, going to seek their fortunes in the cities or out west, and the consequent loneliness and depression in the lives of local women; the long length of the workday for farmers, even in winter, often for lack of help; and

11644-690: The early 20th century, relying more on its role as a economic hub for more rural communities and Vermont's tourism industry . There are satellite campuses of two colleges in Brattleboro: Community College of Vermont , and Vermont Technical College . Located in Brattleboro are the New England Center for Circus Arts , Vermont Jazz Center , and the Brattleboro Retreat , a mental health and addictions hospital. Notable annual events include Strolling of

11786-590: The end of "The Mystery of Edwin Drood", which Dickens had not completed before he died. Dickens' spirit also supposedly told James that it was fine if James made a profit from the book. The book was printed by the same company that owned the Springfield Union, which was the paper that published the first news about James' claims, as well as excerpts from the new chapters of the novel. Newspaper editors from papers around New England who had employed James denounced

11928-534: The energy-intensive stages of the nuclear fuel chain are considered, from uranium mining to nuclear decommissioning , nuclear power is not a low-carbon electricity source despite the possibility of refinement and long-term storage being powered by a nuclear facility. Those countries that do not contain uranium mines cannot achieve energy independence through existing nuclear power technologies. Actual construction costs often exceed estimates, and spent fuel management costs are difficult to define. On 1 August 2020,

12070-471: The entire affair as a well-planned advertising hoax. The book became a sensation, being reviewed in the New York Times and widely promoted in spiritualist magazines of the day. James published the novel on October 31, 1873, and reported that he sold 30,000 copies of it. James left Brattleboro in 1879, abandoning his third wife, and moving to Watertown, Massachusetts, with his fourth wife Lizzie Plummer,

12212-402: The environment and raising the possibility of nuclear proliferation." Nuclear power plants do not produce greenhouse gases during operation. Older nuclear power plants, like ones using second-generation reactors , produce approximately the same amount of carbon dioxide during the whole life cycle of nuclear power plants for an average of about 11g/kWh, as much power generated by wind , which

12354-775: The environment, and that costs do not justify benefits. Threats include health risks and environmental damage from uranium mining , processing and transport, the risk of nuclear weapons proliferation or sabotage, and the problem of radioactive nuclear waste . Another environmental issue is discharge of hot water into the sea. The hot water modifies the environmental conditions for marine flora and fauna. They also contend that reactors themselves are enormously complex machines where many things can and do go wrong, and there have been many serious nuclear accidents . Critics do not believe that these risks can be reduced through new technology , despite rapid advancements in containment procedures and storage methods. Opponents argue that when all

12496-411: The environment. In addition, many reactors are equipped with a dome of concrete to protect the reactor against both internal casualties and external impacts. The purpose of the steam turbine is to convert the heat contained in steam into mechanical energy. The engine house with the steam turbine is usually structurally separated from the main reactor building. It is aligned so as to prevent debris from

12638-525: The expected growth of nuclear power from 2005 to 2055, at least four serious nuclear accidents would be expected in that period. The MIT study does not take into account improvements in safety since 1970. Nuclear power works under an insurance framework that limits or structures accident liabilities in accordance with the Paris Convention on Third Party Liability in the Field of Nuclear Energy ,

12780-505: The federal limit for drinking water. The head of the Nuclear Regulatory Commission told Vermont's congressional delegation that the agency would devote more resources to addressing concerns about Vermont Yankee, and that he expected the source of the tritium leak would be located within the next several weeks. On February 4, 2010, Vermont Yankee reported that ground water samples from a newly dug monitoring well at

12922-678: The first Friday of every month, an event known as "Gallery Walk" is held, during which galleries, artists, arts organizations, and stores display new art works or hold performances. Included in the organizations that participate are the Brattleboro Museum and Art Center , the Hooker-Dunham Theater and Gallery , the In-Sight Photography Project , River Gallery School , Through the Music, and

13064-512: The fourth quarter of 2014. The plant was shut down at 12:12 pm EST on December 29, 2014. Since the 1970s, there have been many anti-nuclear protests about Vermont Yankee, including large protests after the Fukushima nuclear disaster in March 2011, and on the date of the original operating license expiry in March 2012. The plant's initial operating license from the Nuclear Regulatory Commission

13206-406: The hot coolant is used as a heat source for a boiler, and the pressurized steam from that drives one or more steam turbine driven electrical generators . In the event of an emergency, safety valves can be used to prevent pipes from bursting or the reactor from exploding. The valves are designed so that they can derive all of the supplied flow rates with little increase in pressure. In the case of

13348-426: The hours over which the fixed cost of construction can be amortized. Nuclear power plants have a carbon footprint comparable to that of renewable energy such as solar farms and wind farms , and much lower than fossil fuels such as natural gas and coal . Nuclear power plants are among the safest modes of electricity generation, comparable to solar and wind power plants. The first time that heat from

13490-552: The integrity of the reactor or release any radiation into the environment. The NRC stated that the remaining cooling tower had enough capacity to allow the plant to operate at full output, however, until September 16, 2007, the reactor was kept at 50% power. The cause of the collapse was found to be corrosion in steel bolts and rotting of lumber. Entergy asserted that future inspections would be much more stringent in order to prevent further problems. The cooling tower collapse caused Vermont's then governor, Jim Douglas , to question

13632-402: The local 115 kV system was relying exclusively on Entergy's single 345 kV to 115 kV transformer. The construction of the Vernon substation included a second 345 kV to 115 kV transformer to supplement the existing Entergy owned transformer. The additional transformer also provided redundancy for Vermont Yankee's source of offsite power. The four transmission lines that formerly connected directly to

13774-448: The local Selectboard passed a resolution designating Brattleboro a Fair Trade Town, becoming the second Fair Trade certified town in the nation after Media, Pennsylvania . C&S Wholesale Grocers , the northeast's largest regional food distributor, made its headquarters here until 2005, when they moved their administrative offices to Keene, New Hampshire ; however, because of close proximity to Interstate 91 , C&S still operates

13916-544: The location where it was detected a year earlier. According to the State's radiological health chief at the Vermont Health Department , Bill Irwin, and Vermont Yankee spokesman, Larry Smith, the source of the leak was not yet known. Irwin and Governor Peter Shumlin expressed concern about the discovery. On January 19, 2012, Judge J. Garvan Murtha of United States District Court in Brattleboro ruled that

14058-408: The lower cost of electricity provided by competing natural gas-fired power plants , it would cease operations and schedule the plant's decommissioning in the fourth quarter of 2014. Vermont Yankee was shut down at 12:12 pm EST on December 29, 2014. All fuel in the reactor was transferred to the spent fuel pool by January 12, 2015. By August 2018, all VY's remaining spent nuclear fuel was relocated from

14200-551: The need to spend more on redundant back up safety equipment. According to the World Nuclear Association , as of March 2020: The Russian state nuclear company Rosatom is the largest player in international nuclear power market, building nuclear plants around the world. Whereas Russian oil and gas were subject to international sanctions after the Russian full-scale invasion of Ukraine in February 2022, Rosatom

14342-466: The northern portion of town, on Guilford Street near Living Memorial Park, and on a short segment of Western Avenue in West Brattleboro. Open during the summer months, Fort Dummer State Park is named for, and located near, the original site of a Dummer's War -era stockade. The state park consists of 218 acres of protected forest, featuring hiking trails and a State campground, just south of

14484-483: The now decommissioned German Biblis Nuclear Power Plant was designed to modulate its output 15% per minute between 40% and 100% of its nominal power. Russia has led in the practical development of floating nuclear power stations , which can be transported to the desired location and occasionally relocated or moved for easier decommissioning. In 2022, the United States Department of Energy funded

14626-424: The overall electricity requirements of the state. It was originally designed and constructed for 500 MW electrical output. In 2006, it was upgraded to 620 MW electrical output. The reactor produces 1912 MW of heat which is converted to electricity at 32% efficiency. In comparison, the average residential power demand for all of Vermont in 2012 was 239 MW. The nearby Northfield Mountain hydroelectricity facility

14768-567: The overall number of people living in the town. Despite this, Brattleboro remains the most populous town along Vermont's eastern border. The population density of the town was 375.3 people per square mile (144.9/km ). There were 5,686 housing units at an average density of 177.7 per square mile (68.6/km ). The racial makeup of the town was 92.1% White , 1.9% Black or African American , 0.3% Native American , 2.2% Asian , 0.04% Pacific Islander , 0.6% from other races , and 2.8% from two or more races. Hispanic or Latino of any race were 2.7% of

14910-512: 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

15052-458: The plant. The company withdrew the plant from consideration for sale in late March 2011. In March 2011, 600 people gathered for a weekend protest outside the Vermont Yankee plant, in the wake of the Fukushima I nuclear accidents . On March 22, 2011, the day after the NRC issued Vermont Yankee's license extension, Vermont's congressional delegation, Senator Patrick Leahy (D), Senator Bernie Sanders (I), and Representative Peter Welch (D), issued

15194-504: The population center on wooded hills overlooking the Connecticut River. Brattleboro sees a substantial seasonal influx of recreational skiers and snowboarders, many of them bound for the resorts at nearby Mount Snow and Stratton , but it is also a winter sports destination in and of itself. The town played an important role in the development and popularization of the skiing industry as a winter sport, with pioneering Brattleboro native and Dartmouth College alumnus Fred Harris, founder of

15336-409: The population. There were 5,364 households, out of which 27.2% had children under the age of 18 living with them, 37.8% were married couples living together, 12.8% had a female householder with no husband present, and 46.3% were non-families. 37.8% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older. The average household size was 2.15 and

15478-474: The prospect that all spent nuclear fuel could potentially be recycled by using future reactors, generation IV reactors are being designed to completely close the nuclear fuel cycle . However, up to now, there has not been any actual bulk recycling of waste from a NPP, and on-site temporary storage is still being used at almost all plant sites due to construction problems for deep geological repositories . Only Finland has stable repository plans, therefore from

15620-427: The reactor by the condensate and feedwater pumps. In the main condenser, the wet vapor turbine exhaust come into contact with thousands of tubes that have much colder water flowing through them on the other side. The cooling water typically come from a natural body of water such as a river or lake. Palo Verde Nuclear Generating Station , located in the desert about 97 kilometres (60 mi) west of Phoenix, Arizona,

15762-496: The reactor site were found to contain about 775,000 pCi of tritium per liter (more than 37 times the federal limit). On February 5, 2010, samples from an underground vault were found to contain 2.7 million pCi/L. On February 14, 2010, the source of the leak was found to be a pair of steam pipes inside the Advanced Off-Gas (AOG) pipe tunnel. The pipes were repaired, stopping the leak. Samples taken from

15904-570: The reactor was shut down. Entergy Vermont Yankee applied to the Nuclear Regulatory Commission for a license extension of 20 years on January 27, 2006. In early 2010, the Vermont State Senate voted 26–4 to block the Vermont Public Service Board (PSB) from considering continued operation of Vermont Yankee. On March 10, 2011, the NRC voted to conclude proceedings regarding renewal of the operating license for

16046-548: The reliability of the power station: In March 2008, a State Senate committee recommended that the Legislature appoint a panel to oversee an independent review of the plant's reliability. The panel gave Vermont Yankee a generally positive review. "What this report suggests to me is there is not a cause or reason to seek the closure of the plant because of operational or safety concerns," said Public Service Commissioner, David O'Brien. The Nuclear Regulatory Commission performed

16188-474: The risk each year of an earthquake intense enough to cause core damage to the reactor at Vermont Yankee was 8.1 × 10 per year, or a chance of one incident occurring on average every 123,000 years, according to an NRC study published in August 2010, based upon a 2008 USGS survey. The Nuclear Regulatory Commission defines two emergency planning zones around nuclear power plants: a plume exposure pathway zone with

16330-540: The risks of future uncertainties. To date all operating nuclear power stations were developed by state-owned or regulated utilities where many of the risks associated with construction costs, operating performance, fuel price, and other factors were borne by consumers rather than suppliers. Many countries have now liberalized the electricity market where these risks and the risk of cheaper competitors emerging before capital costs are recovered, are borne by station suppliers and operators rather than consumers, which leads to

16472-445: The river and other drinking water sources by the Vermont Department of Health showed no detectable levels of tritium. The New Hampshire Department of Health and Human Services made a similar statement after several tests of the river. During the search for the source of the tritium leak, other radionuclides were found in the soil at the site. Levels of cesium-137 were found to be three to ten times higher than background levels. Silt in

16614-407: The same element. Different isotopes also have different half-lives . U-238 has a longer half-life than U-235, so it takes longer to decay over time. This also means that U-238 is less radioactive than U-235. Since nuclear fission creates radioactivity, the reactor core is surrounded by a protective shield. This containment absorbs radiation and prevents radioactive material from being released into

16756-450: The shortfall funds through "external financing". On September 28, 2016, Entergy began auctioning off more than 1,000 lots of goods in Brattleboro, Vt. Two cooling towers were demolished in July 2019. Cooling for the plant's steam condenser was provided by circulating water through it, drawn from the adjacent Connecticut river. This water did not come in contact with the nuclear reactor and

16898-415: The site's new main transmission facility and to connect a new 345 kV transmission line to Central Vermont as part of its Southern Loop project. The aging Entergy-owned Vermont Yankee substation could not handle the additional line or any additional transformers and VELCO desired to have a utility owned and controlled substation for what is probably the state's most important interconnection point. Additionally,

17040-524: The spent fuel pool into in dry fuel storage casks. In December 2014, Entergy submitted the Post Shutdown Decommissioning Report to the Nuclear Regulatory Commission. This report estimated that the total cost for decommissioning the reactor would be $ 1.24 billion. The same document reported that only $ 665 million had been collected in the 42 years of operations of this plant for this purpose. Entergy hopes to raise some of

17182-451: The state of Vermont could not force Vermont Yankee to close down, as the legislation that attempted to do so was based on radiological safety arguments that are the exclusive concern of the NRC. The judge also held that the state cannot force the plant's owner, Entergy, to sell electricity from the reactor to in-state utilities at reduced rates as a condition of continued operation. On June 7, 2013, Vermont's Public Service Board issued Entergy

17324-693: The steam generator and the nuclear reactor is controlled using the feedwater system. The feedwater pump has the task of taking the water from the condensate system, increasing the pressure and forcing it into either the steam generators—in the case of a pressurized water reactor — or directly into the reactor, for boiling water reactors . Continuous power supply to the plant is critical to ensure safe operation. Most nuclear stations require at least two distinct sources of offsite power for redundancy. These are usually provided by multiple transformers that are sufficiently separated and can receive power from multiple transmission lines. In addition, in some nuclear stations,

17466-487: The steam turbine, so the turbine is kept as part of the radiologically controlled area of the nuclear power station. The electric generator converts mechanical power supplied by the turbine into electrical power. Low-pole AC synchronous generators of high rated power are used. A cooling system removes heat from the reactor core and transports it to another area of the station, where the thermal energy can be harnessed to produce electricity or to do other useful work. Typically

17608-412: The surrounding steep hills there is very little flat land, and many of its buildings and houses are situated on steep hillsides, necessarily closely bunched together. This concentrated topography and population density have helped to create a semi-urban, cosmopolitan atmosphere in the downtown. Since the 1950s, additional construction and development have expanded outside the concentrated downtown area; in

17750-477: The turbine generator can power the station's loads while the station is online, without requiring external power. This is achieved via station service transformers which tap power from the generator output before they reach the step-up transformer. Nuclear power plants generate approximately 10% of global electricity, sourced from around 440 reactors worldwide. They are recognized as a significant provider of low-carbon electricity , accounting for about one-quarter of

17892-440: The west, south, and north of the township. The southeast quarter of the town, near to and abutting the riverbank, is where its population has historically been the densest, and is composed largely of one- or two-family houses, with apartment buildings such as " triple deckers " interspersed among them. Commercial and industrial operations are concentrated along the north-south Canal Street (Route 5) artery. The town's high school and

18034-495: The western bank of the Connecticut River . Hills and mountains surround the town. Brattleboro experiences a humid continental climate ( Köppen Dfa ) with cold, snowy winters and hot, humid summers. The town can experience snowfall as early as November and as late as April, and in the adjacent mountains and high country as late as May. Nor'easters often come with the potential of dumping a foot or more of snow on Brattleboro when they move through; such storms are not uncommon during

18176-400: The winter months. Summers are warm to hot and generally humid, with abundant sunshine and heavy showers and thunderstorms associated with passing cold fronts . Tornadoes are rare. The record high is 100 °F (38 °C), set in 1955, and the record low is −33 °F (−36 °C), set in 1958. In terms of average annual precipitation , May is typically the wettest month, and February

18318-459: The world's supply in this category. As of 2020, nuclear power stood as the second-largest source of low-carbon energy, making up 26% of the total. Nuclear power facilities are active in 32 countries or regions, and their influence extends beyond these nations through regional transmission grids, especially in Europe. In 2022, nuclear power plants generated 2545 terawatt-hours (TWh) of electricity,

18460-402: The world, and 57 nuclear power reactors under construction. Building a nuclear power plant often spans five to ten years, which can accrue significant financial costs, depending on how the initial investments are financed. Because of this high construction cost and lower operations, maintenance, and fuel costs, nuclear plants are usually used for base load generation, because this maximizes

18602-409: Was $ 31,997, and the median income for a family was $ 44,267. Males had a median income of $ 31,001 versus $ 25,329 for females. The per capita income for the town was $ 19,554. About 9.2% of families and 13.1% of the population were below the poverty line , including 18.0% of those under age 18 and 9.2% of those age 65 or over. Both a commercial and touristic gateway for the state of Vermont, Brattleboro

18744-473: Was 1,533,472, an increase of 2.9 percent since 2000. Cities within 50 miles include Brattleboro (6 miles to city center); Keene , N.H. , (16 miles to city center); Fitchburg , Mass ., (38 miles to city center), Greenfield , Mass., and Northampton , Mass. From April 2016, due to the continuing decommissioning process, the emergency planning zone was reduced to the site boundaries. Nuclear power plant A nuclear power plant ( NPP ), also known as

18886-705: Was built across the Connecticut River to Hinsdale, New Hampshire , in 1804. In 1834, the Brattleboro Retreat, then called the Vermont Asylum for the Insane, was established through a generous bequest by Anna Marsh of Hinsdale, New Hampshire . In 1844, the Brattleboro Hydropathic Establishment was opened by Robert Wesselhoeft; this was the third " water cure " establishment in the country, utilizing waters from

19028-456: Was built to balance the supply from Yankee. The reactor core held up to 368 fuel assemblies and 89 control rods. The spent fuel pool is licensed to contain up to 3353 spent fuel assemblies. In 1978, the Vermont Yankee reactor was the subject of Vermont Yankee Nuclear Power Corp. v. Natural Resources Defense Council, Inc. , an important United States Supreme Court administrative law case which ruled that courts cannot impose procedures upon

19170-477: Was carried out in steps to allow collection of data on the reactor's steam dryer at various power levels, in accordance with the NRC imposed power ascension test plan. As of 2008, Vermont Yankee employed about 600 people including those in the corporate office on Old Ferry Road in Brattleboro, Vermont . Vermont Yankee used the Connecticut River as its source of cooling water for its two major water systems:

19312-533: Was founded in 1932 in nearby Putney, Vermont , the Graduate Institute offers master's degrees in several internationally oriented concentrations. Its students and faculty hail from all regions of the globe, giving Brattleboro a decidedly eclectic and international flair, and its notable alumni include native Vermonter and 1997 Nobel Peace Prize laureate Jody Williams . Brattleboro currently has three public K–6 elementary schools. They are: There

19454-580: Was located southwest of downtown Brattleboro, on the south side of Whetstone Brook between Birge and Organ Streets. At its height, the complex had more than 20 buildings, many of which were interconnected by raised walkways and covered bridges. One of the buildings now houses the Estey Organ Museum. The entire surviving complex was listed on the National Register of Historic Places in 1980, both for its architecture, and for having been

19596-403: Was not radioactive. The cooling towers were used to cool water returning from the condenser before it was discharged back into the river at times when it was too warm to comply with the environmental discharge permit. In 2007 the fourth cell of the west cooling tower collapsed, spilling some of the non-radioactive, cooling water. The collapse was an "industrial safety event," which did not threaten

19738-477: Was not targeted by sanctions. However, some countries, especially in Europe, scaled back or cancelled planned nuclear power plants that were to be built by Rosatom. Modern nuclear reactor designs have had numerous safety improvements since the first-generation nuclear reactors. A nuclear power plant cannot explode like a nuclear weapon because the fuel for uranium reactors is not enriched enough, and nuclear weapons require precision explosives to force fuel into

19880-406: Was that the cesium-137 probably leaked from defective fuel assemblies during or prior to 2001, when the last leak of that type was reported by Vermont Yankee. (Problems with fuel rods were common in the 1970s and 1980s.) On May 20, 2010, the NRC released a report on Vermont Yankee: Based on the results of this inspection, the NRC determined that Entergy-Vermont Yankee (ENVY) appropriately evaluated

20022-558: Was the subject of a lawsuit that produced the U.S. Supreme Court 's 1978 decision Vermont Yankee Nuclear Power Corp. v. Natural Resources Defense Council, Inc. , in which the Supreme Court set forth a significant doctrine in American administrative law . Vermont Yankee was a BWR-4 Boiling water reactor that used a Mark I containment structure . It provided 71.8% of all electricity generated in Vermont in 2008 and met 35% of

20164-572: Was untroubled by the prospect of closure: "There's plenty of power out there"." Analysis by researchers at the University of Vermont estimated that an increase of "slightly more than 3 percent" in the retail price of electricity in Vermont would result from closing Vermont Yankee. Ex-Governor Peter Shumlin was a prominent opponent of the Vermont Yankee. Two days after Shumlin was elected governor in November 2010, Entergy sought offers to purchase

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