• The Future of Nuclear Power in a Low-Carbon World

    For decades, large gigawatt-scale nuclear reactors have provided a significant portion of electricity in the United States, but most of these reactors are at least 40 years old. As the nation moves to decarbonize the economy and transition to clean energy, there are questions how nuclear power could maintain a position in the future energy mix ― given environmental and safety concerns, as well as the high upfront capital costs associated with building reactors.

  • How Molten Salt Could Be the Lifeblood of Tomorrow’s Nuclear Energy

    Molten salt has caught the eye of the nuclear industry as an ideal working fluid for reactor cooling, energy transfer, fueling and fission product absorption. Many of the salts being considered are inexpensive, nontoxic, and easily transportable – and table salt is one of the constituents many reactor developers are choosing to use.

  • First New U.S. Nuclear Reactor in 40 Years is Up and Running

    After years of delays, Plant Vogtle project goes online in Georgia. The completion of the first of two new reactors at the plant is a major milestone not just for the long-delayed project but for nuclear energy in the United States. There are currently no other nuclear reactors being built in the United States.

  • Americans’ Support for Nuclear Power Soars to Highest Level in a Decade

    A Gallup survey released in late April found that 55 percent of U.S. adults support the use of nuclear power. That’s up four percentage points from last year and reflects the highest level of public support for nuclear energy use in electricity since 2012. As the country looks to decarbonize, the popularity of nuclear continues to climb.

  • Sustaining U.S. Nuclear Power Plants Could be Key to Decarbonization

    Nuclear power is the single largest source of carbon-free energy in the United States and currently provides nearly 20 percent of the nation’s electrical demand. New research sought to answer the question: Just how much do our existing nuclear reactors contribute to the mission of meeting the country’s climate goals, both now and if their operating licenses were extended?

  • U.S. Should Begin Laying the Foundation for New and Advanced Nuclear Reactors: Report

    New and advanced types of nuclear reactors could play an important role in helping the U.S. meet its long-term climate goals, but a range of technical, regulatory, economic, and societal challenges must first be overcome.

  • Enhancing Advanced Nuclear Reactor Analysis

    Nuclear power is a significant source of steady carbon-neutral electricity, and advanced reactors can add more of it to the U.S. grid, which is vital for the environment and economy. Sandia Lab researchers have developed a standardized screening method to determine the most important radioactive isotopes that could leave an advanced reactor site in the unlikely event of an accident.

  • Shutting Down Nuclear Power Could Increase Air Pollution

    Nearly 20 percent of today’s electricity in the United States comes from nuclear power. The U.S. has the largest nuclear fleet in the world, with 92 reactors scattered around the country. Many of these power plants have run for more than half a century and are approaching the end of their expected lifetimes. If reactors are retired, polluting energy sources that fill the gap could cause more than 5,000 premature deaths, researchers estimate.

  • Germany: Seeking Solution for Remaining Nuclear Waste

    Nuclear energy in Germany has been history since mid-April. The last three nuclear power plants ended their operations on April 15. Germany’s nuclear power might be gone, but nuclear waste isn’t going anywhere. The search for a location for a final repository remains a challenge.

  • Testing Gaming Technology to Train Nuclear Workforce

    Video game software paired with high-tech hard hats can bridge theory and reality to engage a new generation of workers. Argonne engineers tested extended reality tools at the nation’s largest liquid metal test facility.

  • Germany to Turn Off Nuclear Power, but Other Countries Not Ready Yet

    Germany is shutting down its last three atomic power plants this weekend after previously delaying the nuclear phaseout due to the war in Ukraine.

  • Preparing Students for the New Nuclear

    Nuclear power has gained greater recognition as a zero-emission energy source, and an MIT program trains leaders for a rapidly evolving industry.

  • Shutting Down Nuclear Power Could Increase Air Pollution

    Nearly 20 percent of today’s electricity in the United States comes from nuclear power. If reactors are retired, polluting energy sources that fill the gap could cause more than 5,000 premature deaths, researchers estimate.

  • Making Nuclear Energy More Competitive

    Through research on high burnup fuels and improving the design of nuclear power plants, NSE doctoral student Assil Halimi is adopting a dual approach to addressing some of the industry’s toughest challenges.

  • The Heart of Next Generation Nuclear Reactor

    Researchers at the Sandia Lab are working on the reactor at the DIII-D National Fusion Facility aretesting materials to make the next generation of fusion reactors, in the quest to develop more carbon-free energy sources.