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    Posted on Aug 12, 2015

    16 Things You Should Know About Nuclear Power

    Summertime in Washington DC. Hot weather and a more relaxed approach, including these 16 interesting things about nuclear power, with pictures.

    1. Sendai restart!

    Earlier this week (on 11 August 2015), the Sendai 1 nuclear power reactor was restarted and will be the first Japanese reactor to generate power since 2013.

    Another 20 Japanese nuclear power reactors are in various stages of the restart process, which requires nuclear safety regulator certification that they meet upgraded safety standards put in place after the 2011 Fukushima Dai-ichi accident.

    Japan plans to bring the share of nuclear generation to 20-22 percent by 2030.

    2. U.S. has the most operational nuclear power reactors

    Nuclear Economics Consulting Group

    Looks good for U.S. nuclear power, right?

    But, the U.S. had 104 operational power reactors until 5 of these reactors closed early and permanently in the last few years.

    Two of these, Kewaunee and Vermont Yankee, were merchant nuclear plants closed because they were losing money. More merchant nuclear plants could close soon even though they have decades of useful life remaining.

    See NECG Commentary #10 and Can nuclear succeed in power markets?

    Meanwhile, U.S. nuclear power reactors are getting older.

    3. U.S. nuclear power plant retirements are coming

    Nuclear Economics Consulting Group

    All U.S. power reactors operating today will be retired by 2055.

    The chart (from the NECG nuclear database) assumes that:

    •All of these power reactors get NRC approval to operate for 60 years - most have this, but 19 are waiting for approval and another 9 have not yet applied

    •ALL 99 of the US nuclear power reactors operating today remain in operation until the end of their NRC license (i.e., do not close earlier for economic or maintenance reasons)

    Two bright spots:

    •The U.S. NRC is looking at whether these operating power reactors can safely operate for 80 years

    •5 reactors now under construction in the U.S. will be around for longer

    4. China is building the most nuclear power reactors

    Nuclear Economics Consulting Group

    This chart shows nuclear power reactors actually under construction, using the nuclear industry standard – that safety-related nuclear concrete has been poured.

    In addition to having the most reactors under construction, China has another 40 power reactors that are planned reactors and about 150 that are proposed. China will enter the global power reactor market with proven Chinese reactor designs, operating reference nuclear reactors, and recent successful construction experience.

    5. Japan has the world’s largest nuclear power plant

    Kashiwazaki Kariwa (in photo); 7,965 MW; Japan

    Bruce; 6,300 MW; Canada

    Hanul; 5,881 MW; South Korea

    Hanbi; 5,875 MW; South Korea

    Zaporozhe; 5,700 MW; Ukraine

    Gravelines; 5,460 MW; France

    These nuclear power plants are large because they have multiple reactors on the same power plant site. Nuclear power uses very little land per MW and uses even less when multiple reactors are placed on the same site.

    The largest U.S. operating nuclear plant is Palo Verde (3,937 MW) in Arizona. When the two new reactors at the Vogtle plant in Georgia start operating, Vogtle will become the largest U.S. nuclear plant with 4,536 MW.

    6. Ten nuclear power reactors have operated more than 44 years

    Beznau nuclear power plant

    The oldest operational nuclear power plant is Beznau 1 in Switzerland. Beznau 1started operation on 1 Sep 1969, has been in operation for 45.94 years

    Nuclear power is a fairly new technology. Most of the operating nuclear power plants in the world are only the second generation of operating power reactors. The new nuclear power plant designs being built today are referred to as Generation 3.

    7. Nuclear power has very low greenhouse gas emissions

    WNA / Via world-nuclear.org

    This chart shows lifecycle greenhouse gas (GHG) emissions. Lifecycle GHG emissions account for all phases of power projects, including construction, operation, and decommissioning.

    Operation of an existing nuclear power reactor produces zero GHG emissions, while most GHG emissions from combustion-based generation are during operation.

    If we are serious about reducing GHG emissions, nuclear power must be included.

    8. Neighbors like nuclear power

    NEI

    The more people know about nuclear power, the more they favor it.

    9. Uranium has huge amount of energy

    PopAtomic Studios / Via popatomic.org

    A little bit of uranium makes a lot of nuclear electricity.

    10. Uranium’s high energy density means tiny amounts of nuclear waste

    WNA / Via world-nuclear.org

    Not only is nuclear fuel very dense, but used/spent nuclear fuel is also dense.

    The U.S. nuclear industry generates a total of about 2,000 - 2,300 metric tons of used fuel per year. Over the past four decades, the entire U.S. nuclear power industry has produced 74,258 metric tons of used nuclear fuel. If these used fuel assemblies were stacked end-to-end and side-by-side, they would cover a single football field about eight yards deep (from NEI).

    11. Nuclear power plants need a lot of skilled workers

    Ventyx and US DOE

    12. Nuclear power is the safest source of electricity

    Nuclear Economics Consulting Group / Via nextbigfuture.com

    Nuclear has the lowest deaths per Terawatt-hour (TWh; 1 billion kilowatt-hours) of electricity generated, based on data from Next Big Future.

    13. Civilian ships can use nuclear propulsion

    "NSsavannah-1962" by US Government - NARA: arcweb.archives.gov. Licensed under Public Domain via Wikimedia Commons / Via commons.wikimedia.org

    This is the NS (Nuclear Ship) Savannah, now a museum located in Baltimore Harbor.

    14. Navy ships use nuclear propulsion

    U.S. Navy aircraft carriers (and submarines) use nuclear power – they can go very fast and very far without refueling.

    15. Nuclear propulsion is great for icebreakers

    expeditionsonline.com / Via expeditionsonline.com

    This is the Russian icebreaker “50 Years of Victory” moving through arctic ice. You can 16.Nuclear propulsion is great for icebreakers a trip to the North Pole on this icebreaker!

    16. Nuclear electricity powers deep space probes

    NASA / Via nasa.gov

    Pluto viewed from NASA’s New Horizons spacecraft on July 14, 2015.

    New Horizons is powered by a Plutonium 238 radioisotope thermoelectric generator developed by the U.S. Department of Energy at the Idaho National Laboratory.

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