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<section class="hero hero--topic"> <div class="hero__img" style="background-image: url(https://www.energy.gov/sites/default/files/2024-11/Preamplifier_at_the_National_Ignition_Facility_0.jpg)"></div> <div class="grid-container"> <div class="hero__title"> <h1> <span class="field field--string field--title">Fusion Energy</span> </h1> </div> </div> </section> </div> <div id="block-main-page-content" class="block block-system block-system-main-block"> <article about="/topics/fusion-energy"> <div> <div class="callout"> <div class="grid-row grid-gap"> <div class="tablet:grid-col-1 grid-col-12 icon-col"> <i class="fa-solid fa-bolt"></i> </div> <div class="tablet:grid-col-11 grid-col-12 description-col"> Fusion can potentially provide a safe, abundant, zero-carbon-emitting source of reliable primary energy. To reach the point where fusion can reliably produce electricity and other forms of energy for commercial, industrial, and residential use, scientists and engineers must tackle a number of remaining scientific and technological challenges. </div> </div> </div> <section class="layout blade-section--boxed blade-section--fullwidth" > <div class="grid-container"> <div class="blade-color " > <div class="grid-row"> <div class="grid-col"> <div class="block block-layout-builder block-extra-field-blocknodetopiclinks"> </div> <div class="block block-layout-builder block-extra-field-blocknodetopiccontent-moderation-control"> </div> </div> </div> </div> </div> </section> <section class="layout blade-section--fullwidth blade-section--blue--dark blade-section blade-section--text--white" id="content-block"> <div class="blade-color " > <div class="grid-container"> <div class="grid-row"> <div class="grid-col"> <div class="block block-layout-builder block-inline-blocktemplate"> <div></div> <div class="field field--entity_reference_revisions_entity_view field--field_paragraph_reference field field--name-field-paragraph-reference field--type-entity-reference-revisions field--label-hidden field__item"> <div class="paragraph paragraph--type--two-column-image-and-text paragraph--view-mode--default"> <div class="grid-row grid-gap"> <div class=" tablet:grid-col-4 tablet:order-first "> <p class="title-2xl force-fullwidth--tablet">We're Leading Fusion Research</p> </div> <div class=" tablet:grid-col-8 tablet:order-1"> <div class="field field--text_default field--field_card_text field field--name-field-card-text field--type-text-long field--label-hidden field__item"><p>Fusion occurs when two light atoms like hydrogen combine to form a heavier atom like helium. This process occurs in our Sun and other stars. To create and sustain fusion on Earth, scientists use devices that generate and sustain plasmas. Plasmas are “ionized” gases that are so hot that electrons are freed from atomic nuclei. In many fusion approaches, researchers use electric and magnetic fields to control the resulting collection of ions and electrons. At sufficiently high temperatures, ions fuse together. This process—fusion—releases energy in the form of heat. Scientists are working hard to recreate the process here on Earth and to collect the energy to make electricity or for other energy-intensive applications. <br><br>The Department of Energy (DOE) has been investing in fusion research for decades. U.S. government support for fusion energy research and development began in the 1950s at the Atomic Energy Commission, the predecessor to DOE. It continued through the <a href="https://red-test.cms.doe.gov/science/fes/fusion-energy-sciences"><strong>Office of Science (SC) Fusion Energy Sciences (FES)</strong></a> program to establish the scientific foundations for a fusion energy source. These efforts include support of international collaborations like ITER. DOE’s <a href="https://red-test.cms.doe.gov/nnsa/national-nuclear-security-administration"><strong>National Nuclear Security Administration</strong></a> supports the Inertial Confinement Fusion (ICF) program to advance its Stockpile Stewardship mission. Starting in 2015, <a href="https://arpa-e.energy.gov/"><strong>ARPA-E</strong></a> has supported areas of potentially transformative fusion R&D with a focus on enabling timely fusion commercialization. </p><p>Commercial fusion energy has the potential to revolutionize the energy industry, help achieve energy abundance and security, and help meet the growing clean energy needs of the United States and the world. Fusion may also potentially provide a combined source of energy in the form of heat and power for hydrogen production, industrial heat, carbon capture, and desalination. </p><p>At the same time, fusion has both technology gaps (e.g., materials and fuel cycle) and potential risks that need to be managed. These risks include the generation of activated waste in structural materials. These materials will require short-term storage and create potential proliferation pathways. DOE stands ready to deliver innovations that not only bring fusion to technical and commercial viability but also help manage these risks.</p></div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </section> <section class="layout blade-section--fullwidth blade-section--blue--dark blade-section blade-section--text--white" id="highlights"> <div class="blade-color " > <div class="grid-container"> <div class="grid-row"> <div class="grid-col"> <div class="block block-layout-builder block-inline-blocktemplate"> <div><div class="paragraph-reference-heading-wrapper paragraph-reference-heading-wrapper--"><h2 class="block block-layout-builder block-inline-blocktemplate"> Highlights </h2></div></div> <div class="field field--entity_reference_revisions_entity_view field--field_paragraph_reference field field--name-field-paragraph-reference field--type-entity-reference-revisions field--label-hidden field__item"> <div class="paragraph paragraph--type--collection paragraph--view-mode--default"> <div class="paragraph__column"> <ul class="collection--cover-img collection"><li class="collection-item"> <article about="/doe-fusion-energy-strategy-2024-executive-summary" typeof="schema:WebPage"> <div class="collection-item--type-page collection-item-wrapper"> <div class="collection-item__image"> </div> <div class="collection-item__icon"> <div class="fontawesome-icon"> <i class="fas fa-lightbulb" data-fa-transform="" data-fa-mask="" style=""></i> </div> </div> <div class="collection-item__title title-sm"> <a class="collection-item__link" href="/doe-fusion-energy-strategy-2024-executive-summary"> <span property="schema:name" class="field field--string field--title">DOE Fusion Energy Strategy 2024, Executive Summary</span> </a> </div> <div class="collection-item__summary"> <div class="field field--basic_string field--field_summary field field--name-field-summary field--type-string-long field--label-hidden field__item">DOE Fusion Energy Strategy 2024, Executive Summary</div> </div> <div class="collection-item__date p2"> November 23, 2024 </div> </div> </article> </li><li class="collection-item"> <article about="/science/articles/building-bridges-vision-office-fusion-energy-sciences" typeof="schema:Article"> <div class="collection-item--type-document collection-item--type-article collection-item-wrapper"> <div class="collection-item__image"> </div> <div class="collection-item__icon"> <div class="fontawesome-icon"> <i class="fas fa-lightbulb" data-fa-transform="" data-fa-mask="" style=""></i> </div> </div> <div class="collection-item__title title-sm"> <a class="collection-item__link" href="/science/articles/building-bridges-vision-office-fusion-energy-sciences"> <span property="schema:name" class="field field--string field--title">Building Bridges: A Vision for the Office of Fusion Energy Sciences</span> </a> </div> <div class="collection-item__summary"> <div class="field field--basic_string field--field_summary field field--name-field-summary field--type-string-long field--label-hidden field__item">The new FES vision focuses on aggressively closing the science and technology gaps needed to realize commercial fusion energy. The three key elements of the vision are: workforce development, bridging gaps and transformational science.</div> </div> <div class="collection-item__date p2"> <time datetime="2024-06-06T18:51:04Z">June 6, 2024</time> </div> </div> </article> </li><li class="collection-item"> <article> <div class="collection-item--type-external-resource collection-item-wrapper"> <div class="collection-item__image"> </div> <div class="collection-item__icon"> <div class="fontawesome-icon"> <i class="fas fa-lightbulb" data-fa-transform="" data-fa-mask="" style=""></i> </div> </div> <div class="collection-item__title title-sm"> <a class="collection-item__link" href="https://www.whitehouse.gov/ostp/news-updates/2022/03/15/fact-sheet-developing-a-bold-vision-for-commercial-fusion-energy/"> Fact Sheet: Developing a Bold Vision for Commercial Fusion Energy </a> </div> <div class="collection-item__summary"> </div> <div class="collection-item__date p2"> <time datetime="2024-11-15T19:57:41Z">November 15, 2024</time> </div> </div> </article> </li></ul> </div> </div> </div> </div> </div> </div> </div> </div> </section> <section class="layout blade-section--fullwidth blade-section--blue--dark blade-section blade-section--text--white" id="image-block"> <div class="blade-color " > <div class="grid-container"> <div class="grid-row"> <div > </div> </div> </div> </div> </section> <section class="layout blade-section--fullwidth blade-section--blue--dark blade-section blade-section--text--white" id="content-block"> <div class="blade-color " > <div class="grid-container"> <div class="grid-row"> <div class="grid-col"> <div class="block block-layout-builder block-inline-blocktemplate"> <div></div> <div class="field field--entity_reference_revisions_entity_view field--field_paragraph_reference field field--name-field-paragraph-reference field--type-entity-reference-revisions field--label-hidden field__item"> <div class="paragraph paragraph--type--two-column-image-and-text paragraph--view-mode--default"> <div class="grid-row grid-gap"> <div class=" tablet:grid-col-6 tablet:order-first "> <img src="/sites/default/files/2024-11/marine-focus-area-image_0.jpg" alt="Marine energy device being released into the water from a platform" class="width-full height-full object-fit-cover radius-lg" /> </div> <div class=" tablet:grid-col-6 tablet:padding-left-15 tablet:order-1"> <p class="title-2xl">Areas of Fusion Research</p> <div class="field field--text_default field--field_card_text field field--name-field-card-text field--type-text-long field--label-hidden field__item"><p>The DOE fusion energy program helps researchers coordinate across the many fundamental scientific and technical disciplines that are involved with fusion, including plasma physics, materials science and engineering, and advanced scientific computing. Scientists can create conditions for fusion with techniques that use a variety of magnetic, electrical, and other methods to shape and control plasma. </p><p>Magnetic confinement research facilities at national laboratories and universities have helped researchers better understand how to generate and sustain fusion reactions and eventually generate power from them. This progress motivated the international collaboration on the ITER experiment. ITER aims to build and operate a burning plasma experiment based on a magnetic confinement concept called a tokamak. (Many tokamaks currently exist, including DOE Office of Science user facilities like the DIII-D National Fusion Facility, but ITER will be the largest one.) DOE is a major supporter of ITER. Once built, ITER will be the world’s largest international scientific research facility. </p></div> </div> </div> </div> </div> </div> <div class="block block-layout-builder block-inline-blocktemplate"> <div></div> <div class="field field--entity_reference_revisions_entity_view field--field_paragraph_reference field field--name-field-paragraph-reference field--type-entity-reference-revisions field--label-hidden field__item"> <div class="paragraph paragraph--type--text-field paragraph--view-mode--default"> <div class="paragraph__column"> <div class="field field--text_default field--field_text field field--name-field-text field--type-text-long field--label-hidden field__item"><p>In inertial confinement fusion experiments, the fusion device compresses and heats a target to initiate fusion. The biggest of these devices is the National Ignition Facility (NIF) at DOE’s Lawrence Livermore National Laboratory. The laboratory supports the <a href="/nnsa/national-nuclear-security-administration">National Nuclear Security Administration</a>, which is responsible for our nation’s nuclear security. </p><p>The NIF fires 192 laser beams into a hollow cylinder that has a tiny capsule in it. This creates a “bath” of X-rays that blow off the surface of the capsule, which is filled with partially frozen hydrogen isotopes. The result is a rocket-like implosion. It compresses and heats the isotopes to conditions of pressure and temperature found only in the cores of stars and giant planets as well as exploding nuclear weapons. The speed of the implosion allows the fusion reactions to take place before the fuel can disassemble. In 2022, the lab achieved ignition—producing more fusion energy than the amount of laser energy delivered to the NIF target. </p><p>This breakthrough, decades in the making, was pivotal for NNSA’s Stockpile Stewardship Program, which aims to ensure the safety and reliability of the U.S. nuclear arsenal <strong>without </strong>nuclear explosive testing. Since the first successful attempt, NIF has achieved fusion ignition multiple times, further validating the breakthrough. NIF’s recreation of extreme environments allows scientists to study the behavior of materials under weapons-relevant conditions that were previously impossible to achieve in a laboratory setting. The 2022 achievement is not only vital for maintaining the effectiveness and safety of the U.S. nuclear arsenal but is also a stepping-stone for the future of fusion energy. </p><p>Other relevant research areas include the study of materials for future devices, integrated systems for generating electricity from fusion, and breeding fuel for the fusion process.</p></div> </div> </div> </div> </div> </div> </div> </div> </div> </section> <section class="layout blade-section--fullwidth blade-section--blue--dark blade-section blade-section--text--white" id="feature"> <div class="blade-color " > <div class="grid-container"> <div class="grid-row"> <div class="grid-col"> <div class="block block-layout-builder block-inline-blocktemplate"> <div><div class="paragraph-reference-heading-wrapper paragraph-reference-heading-wrapper--"><h2 class="block block-layout-builder block-inline-blocktemplate"> Fusion Forward: Into the Bold Decadal Vision </h2></div></div> <div class="field field--entity_reference_revisions_entity_view field--field_paragraph_reference field field--name-field-paragraph-reference field--type-entity-reference-revisions field--label-hidden field__item"> <div class="paragraph paragraph--type--two-column-image-and-text paragraph--view-mode--default"> <div class="grid-row grid-gap"> <div class=" tablet:grid-col-8 tablet:order-first "> <div class="videoWrapper"> <iframe width="100%" height="auto" src="https://www.youtube.com/embed/RzWR9ol7smk" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe> </div> </div> <div class=" tablet:grid-col-4 tablet:order-1"> <p class="title-2xl"></p> <div class="field field--text_default field--field_card_text field field--name-field-card-text field--type-text-long field--label-hidden field__item"><p>Over the past decade, the landscape around fusion energy research and development (R&D) has evolved significantly, especially in the United States. Building on decades of public investments in fusion science and technology, major advances such as the achievement of fusion ignition are being achieved domestically and globally by public and private sector entities. These are indications of fusion’s increasing technical readiness. Other major scientific advances, e.g. in high-temperature superconductors, advanced materials, and artificial intelligence, have the potential to further accelerate and transform fusion R&D. </p></div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </section> <section class="layout blade-section--fullwidth blade-section--gray--dark blade-section blade-section--text--white" id="press-releases"> <div class="blade-color " > <div class="grid-container"> <div class="grid-row"> <div class="grid-col"> <div class="block block-layout-builder block-inline-blocktemplate"> <div><div class="paragraph-reference-heading-wrapper paragraph-reference-heading-wrapper--"><h2 class="block block-layout-builder block-inline-blocktemplate"> Press Releases </h2></div></div> <div class="field field--entity_reference_revisions_entity_view field--field_paragraph_reference field field--name-field-paragraph-reference field--type-entity-reference-revisions field--label-hidden field__item"> <div class="paragraph paragraph--type--collection paragraph--view-mode--default"> <div class="paragraph__column"> <ul class="collection collection--compact-icons js-view-dom-id-7da293c60c4c66da27afd0d32f37149148a7bdd795800b01830695f199b79fc1"> <li class="collection-item"> <div class="collection-item--type-press-releases collection-item-wrapper"> <div class="collection-item__topics micro"> <ul> <li>Careers</li><li>Next-Generation Energy Technologies</li><li>Research, Technology, and Economic Security</li><li>Fusion</li><li>Artificial Intelligence</li></ul> </div> <div class="collection-item__title title-sm"> <a class="collection-item__link" href="/articles/us-department-energy-awards-138-million-91-early-career-scientists"> U.S. Department of Energy Awards $138 Million to 91 Early Career Scientists </a> </div> <div class="collection-item__date p2"> September 10, 2024 </div> </div> </li> <li class="collection-item"> <div class="collection-item--type-press-releases collection-item-wrapper"> <div class="collection-item__topics micro"> <ul> <li>Fusion</li><li>Clean Energy</li><li>Nuclear Energy</li><li>Renewable Energy</li><li>Energy Security</li></ul> </div> <div class="collection-item__title title-sm"> <a class="collection-item__link" href="/articles/doe-announces-new-decadal-fusion-energy-strategy"> DOE Announces New Decadal Fusion Energy Strategy </a> </div> <div class="collection-item__date p2"> June 6, 2024 </div> </div> </li> <li class="collection-item"> <div class="collection-item--type-press-releases collection-item-wrapper"> <div class="collection-item__topics micro"> <ul> <li>Energy Security</li><li>Clean Energy</li><li>Nuclear Energy</li><li>International Meetings and Forums</li><li>Fusion</li></ul> </div> <div class="collection-item__title title-sm"> <a class="collection-item__link" href="/articles/us-uk-strategic-energy-dialogue-2024-joint-statement"> U.S.-UK Strategic Energy Dialogue 2024: Joint Statement </a> </div> <div class="collection-item__date p2"> April 30, 2024 </div> </div> </li> <li class="collection-item"> <div class="collection-item--type-press-releases collection-item-wrapper"> <div class="collection-item__topics micro"> <ul> <li>Fusion</li><li>International Meetings and Forums</li><li>Energy Security</li><li>Clean Energy</li><li>International Market Development</li></ul> </div> <div class="collection-item__title title-sm"> <a class="collection-item__link" href="/articles/joint-statement-between-doe-and-japan-ministry-education-sports-science-and-technology"> Joint Statement between DOE and the Japan Ministry of Education, Sports, Science and Technology Concerning a Strategic Partnership to Accelerate Fusion Energy Demonstration and Commercialization </a> </div> <div class="collection-item__date p2"> April 10, 2024 </div> </div> </li> </ul> </div> </div> </div> </div> </div> </div> </div> </div> </section> <section class="layout blade-section--fullwidth blade-section--gray--dark blade-section blade-section--text--white" 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