Nuclear power

  • Nuclear energyInteractive tool roots discussions about the cost of nuclear energy in hard evidence

    Despite the ever-changing landscape of energy economics, subject to the influence of new technologies and geopolitics, a new tool promises to root discussions about the cost of nuclear energy in hard evidence rather than speculation. Over the last two years, the Bulletin of the Atomic Scientists has developed the Nuclear Fuel Cycle Cost Calculator, an online interface that provides a nuanced look at the economic costs of nuclear power. The calculator provides a simple gateway into the physics-laden universe of nuclear economics. A user can slide more than sixty moving scales to tweak inputs like uranium price or reactor construction time, and then watch the expected price shift.

  • CybersecurityFusion Centers important in promoting cybersecurity

    Fusion centers were created after 9/11 to serve as primary focal points for state, local, federal, tribal, and territorial partners to receive, analyze, and share threat-related information. States can promote cybersecurity and enhance their capabilities by heightening the importance of cybersecurity as a mission of fusion centers, according to a paper released the other day by the National Governors Association (NGA).

  • Radiation risksIs your fear of radiation irrational?

    By Geoff Watts

    Radioactivity stirs primal fears in many people, but that an undue sense of its risks can cause real harm. Invisible threats are always the most unnerving, and radiation is not something you can see. Nor can you control it. The traditional secrecy of the biggest commercial user of radiation, the nuclear power industry, hasn’t helped. A justified fear of high and uncontrolled levels of radiation has thus undermined our willingness to see that the risks it poses at low levels are either acceptable or manageable.

  • CybersecurityTeams chosen for the 2016 DARPA Cyber Grand Challenge final competition

    Seven teams from around the country have earned the right to play in the final competition of DARPA’s Cyber Grand Challenge (CGC), a first-of-its-kind tournament designed to speed the development of automated security systems able to defend against cyberattacks as fast as they are launched. The CGC winners will be handsomely rewarded, but DARPA says that more important than the prize money is the fact that it ignites the cybersecurity community’s belief that automated cybersecurity analysis and remediation are finally within reach.

  • EnergyIntegrating renewable and nuclear power plants into the electrical grid

    “Electrical grids can work if, and only if, the amount of electricity inserted into the grid from power plants is matched, second by second, to the amount of electricity extracted from the grid by consumers.” If this does not happen there are black-outs. In order to maintain this equilibrium we must focus on two things: demand and supply of electricity into the grid. New research into sustainable energy systems focuses on integrating renewable and nuclear power plants into the electrical grid — a topic high on the agenda for scholars, industry, and policy makers.

  • EnergySwitzerland mulls its energy future

    Switzerland has a long history of trying to be as self-sufficient and energy independent as possible. Although its energy supply system has served it well in the past, the country is now looking to turn away from its reliance on nuclear power, at the same time that it is seeking to compensate for the energy lost from hydropower as a result of climate change.

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  • Nuclear powerA new look for nuclear power

    By Nancy W. Stauffer

    Many experts cite nuclear power as a critical component of a low-carbon energy future. Nuclear plants are steady, reliable sources of large amounts of power; they run on inexpensive and abundant fuel; and they emit no carbon dioxide (CO2). A novel nuclear power plant that will float eight or more miles out to sea promises to be safer, cheaper, and easier to deploy than today’s land-based plants.

  • IranIran offered nuclear help in exchange for tighter restrictions on weapons-related technology

    The talks between the P5+1 and Iran over a nuclear deal resumed on Wednesday, and sources say that Western powers have offered Iran high-tech reactors in exchange for further curbs on those aspects of Iran’s nuclear program which would make it possible for it to “break out” of the confines of the deal and build a nuclear weapon. The Western powers promised to supply Iran with light-water nuclear reactors instead of its nearly completed heavy-water facility at Arak, which could produce enough plutonium for several bombs a year if completed as planned. One of the major goals of the P5+1 negotiators has been to reduce the Arak reactor’s plutonium output, thus blocking Iran’s plutonium path to the bomb. It offers cooperation with Iran in the fields of nuclear safety, nuclear medicine, research, nuclear waste removal, and other peaceful applications.

  • Nuclear wasteNew reactor design recycles nuclear waste

    One of the major technological hurdles for nuclear energy is developing systems to dispose of the waste produced by typical reactors. It must be sealed away for hundreds of millennia while the radioactivity naturally decreases. An advanced nuclear reactor under development by Hitachi could help solve the nuclear waste problem. Hitachi’s new design would burn off the longest-lived radioactive materials, called transuranics, shortening that isolation period to a few centuries. This would recycle the nuclear waste to produce yet more energy and reduce the amount that must be stowed away.

  • Nuclear powerNRC ruling raises questions about future of Diablo Canyon reactors

    In a major victory for those who pointed, post-Fukushima, to the risks involved in having a nuclear power reactor operating too close to a seismic fault, as is the case with the Diablo Canyon nuclear reactors, U.S. Nuclear Regulatory Commissioners have ruled – in a decision that could mark the beginning of the end of Diablo Canyon — that an Atomic Safety Licensing Board will decide whether Pacific Gas & Electric Co. was allowed illegally to alter the plant’s license. This alteration was made in an effort to hide the risk from powerful earthquake faults discovered since it was designed and built.

  • Nuclear risksMore proof needed that PG&E’s Diablo Canyon nuclear plant is safe from earthquakes: NRC

    Despite repeated assertions by Pacific Gas & Electric Co. that the Diablo Canyon nuclear plant is safe from earthquakes, the U.S. Nuclear Regulatory Commission (NRC) has ordered PG&E to provide more proof. Critics of the plant’s continuing operation say the order confirms concerns that faults surrounding Diablo Canyon are capable of more ground motion than the reactors were built to withstand and that the plant is in violation of its operating license and should be closed immediately.

  • Nuclear plantsSeismic safety of nuclear power plants in Scandinavia to improve

    Since the Fukushima accident, Nordic nuclear power plant areas have given greater priority to understanding the safety implications of seismic events. The Technical Research Center of Finland (VTT) and various Nordic players are co-developing new methods of making seismic hazard estimates of anticipated earthquakes in Fennoscandia — the region comprising the Scandinavian Peninsula, Finland, Karelia, and the Kola Peninsula in Russia.

  • EarthquakesIsrael worries about its own Big One

    The magnitude 7.8 earthquake that struck Nepal, leaving more than 4,000 people dead, has alerted earthquake experts in Israel about the country’s own seismic risk, which could result in a large quake months or a few years from now. Israel, the Palestinian territories, and Jordan are sitting on a major fault line which constitutes “a real, as well as a current, threat to the safety, social integrity, and economic well-being of the people in the region,” reads a 2007 earthquake report.

  • Nuclear powerPreventing a Fukushima-like disaster in Europe

    In 2005, Europe was exposed to a potential risk of a nuclear disaster caused by the flooding of the Loviisa nuclear power plant in Finland. Sea levels rose by 1.73 meter above normal levels, due to a storm. As a result, flood defenses have been reinforced. Floods are likely to occur more frequently than anticipated when nuclear power plants where built, due to climate change. Improved safety management and further collaboration between experts are required to minimize the risk of flooding at coastal nuclear plants in Europe.