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  1. The world’s largest nuclear plants differ by age, number of reactors, and utilization

      Source: U.S. Energy Information Administration, based on data from International Atomic Energy Agency Power Reactor Information System   There are currently 449 operating nuclear reactors in 31 countries, with a total installed generating capacity of more than 390,000 megawatts (MW), based on data from the International Atomic Energy Agency. Nuclear power plants differ in various ways including reactor types, vessel containments, cooling methods, and dispatch purposes. The largest nuclear plant in the United States, the Palo Verde plant near Phoenix, Arizona, ranks as the ninth-largest operating nuclear plant in the world and has the highest capacity factor among large nuclear plants. The list of the largest nuclear plants has changed in recent years. Three plants in Japan, each with a generating capacity of more than 4,000 MW, were suspended from operation following the accident at Fukushima Daiichi and, like nearly all of Japan’s existing nuclear plants, are not currently generating electricity. Other countries, especially China, are adding large nuclear plants. For instance, the Hongyanhe plant near Dalian, China, had a capacity of 3,183 MW at the end of 2015 but, with the startup of another 1,000 MW reactor in 2016, the plant's capacity now totals 4,183 MW, with another two reactors under construction. With the idling of Japan’s 7,965 MW Kashiwazaki-Kariwa plant, the Bruce Nuclear Generating Station, located on Lake Huron in Ontario, Canada, is currently the world’s largest operating nuclear power plant. Bruce has eight reactors, configured as two separate facilities operating four reactor units each, and has a combined installed capacity of 6,274 MW. Of the top ten operating nuclear plants in the world, the United States’ Palo Verde plant has the fewest number of reactors (three) but has the highest capacity factor, a measure of plant utilization. Plants that operate more have higher capacity factors and produce more electricity per unit of generating capacity. Based on the most recent five years of data (2011–15), Palo Verde’s capacity factor averaged 92%, while other large nuclear plants’ capacity factors ranged from 73% to 88%. Source: U.S. Energy Information Administration, based on data from International Atomic Energy Agency Power Reactor Information System   Over the past 15 years, nuclear capacity factors in the United States have typically remained above 90%, which is higher than nuclear plants in other regions of the world. The duration of refueling and maintenance outages is a significant factor in why U.S. capacity factors are so high. Nuclear reactors undergo routine maintenance and refueling outages about once every 18 to 24 months. Although a nuclear reactor can be refueled in as little as 10 days, outages often last longer, as operators conduct other noncritical maintenance work simultaneously to minimize overall operational downtime. In the United States, the average duration of refueling outages has been steadily declining. In the early 1990s, refueling-related outages lasted nearly three months. In spring 2016, refueling outages in the United States averaged 29 days. Using data from the Nuclear Regulatory Commission, EIA maintains a tool displaying the daily operating status of each nuclear plant in the United States. Principal contributor: Slade Johnson

    Online Articles

    Online Articles

    Wed, 8 Feb 2017

  2. Nuclear Power: Robot probes show Japan reactor cleanup worse than expected

    Robot probes sent to one of Japan's wrecked Fukushima nuclear reactors have suggested worse-than-anticipated challenges for the plant's ongoing cleanup.

    Online Articles

    Online Articles

    Sat, 18 Feb 2017

  3. Connecticut Millstone nuclear plant seeks to bid on state contracts

    The owners of Connecticut's only nuclear power plant have met with legislators and described their vulnerability to trends affecting the industry nationwide

    Online Articles

    Online Articles

    Thu, 19 Jan 2017

  4. Exelon to take over Entergy's FitzPatrick Nuclear Power Plant in Upstate N.Y.

    Gov. Andrew Cuomo, who asked the New York Public Service Commission to adopt a Clean Energy Standard benefitting the state’s nuclear power plants , helped facilitate the transaction 

    Online Articles

    Online Articles

    Tue, 9 Aug 2016

  1. Nuclear Energy News: Nebraska utility head recommends closing nuclear power plant

    Online Articles

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    Fri, 13 May 2016

  2. Nuclear power plant workers banned from sites after attempted carjacking

    Two former workers at the Dresden nuclear power plant in Illinois are banned from working in nuclear power plants after they were accused of attempting to rob an armored car and carjacked a woman.

    Online Articles

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    Mon, 28 Oct 2013

  3. Nuclear Power: Owner of shut-down Vermont nuke plant seeks to sell

    The owner of the shut-down Vermont Yankee nuclear   power plant wants to sell the facility to a company that specializes in dismantling closed nuclear   power plants .

    Online Articles

    Online Articles

    Wed, 9 Nov 2016

  4. NRC sets 2017 deadline for nuclear power plants ’ earthquake risk analysis

    The U.S. Nuclear Regulatory Commission (NRC) set a June 2017 deadline for two nuclear power plants to conduct in-depth analyses of their updated earthquake risk.

    Online Articles

    Online Articles

    Wed, 13 May 2015

  5. China plans two nuclear power plants in Iran

    China said it plans to build two nuclear power plants in Iran.

    Online Articles

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    Thu, 23 Jul 2015

  6. AREVA awarded contract for services at German nuclear power plants

    AREVA has been awarded a contract to perform outage services over several years at Isar 2, Brokdorf and Grohnde nuclear power plants in Germany. 

    Online Articles

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    Mon, 21 Sep 2015

  7. Pakistani nuclear power plant clears another hurdle

    Pakistan’s government has approved construction of two new nuclear power plants near Karachi, but still needs to satisfy security concerns.

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    Tue, 23 Jun 2015

  8. Paks Nuclear Power Plant joins EPRI research program

    The Paks Nuclear Power Plant in Hungary has joined the nuclear research program at the Electric Power Research Institute (EPRI).

    Online Articles

    Online Articles

    Wed, 25 Feb 2015

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