{"id":31178,"date":"2026-05-29T11:31:18","date_gmt":"2026-05-29T11:31:18","guid":{"rendered":"https:\/\/trendifyhubusa.com\/index.php\/2026\/05\/29\/u-s-aims-to-give-cold-war-plutonium-to-start-ups-for-nuclear-fuel\/"},"modified":"2026-05-29T11:31:18","modified_gmt":"2026-05-29T11:31:18","slug":"u-s-aims-to-give-cold-war-plutonium-to-start-ups-for-nuclear-fuel","status":"publish","type":"post","link":"https:\/\/trendifyhubusa.com\/index.php\/2026\/05\/29\/u-s-aims-to-give-cold-war-plutonium-to-start-ups-for-nuclear-fuel\/","title":{"rendered":"U.S. Aims to Give Cold War Plutonium to Start-Ups for Nuclear Fuel"},"content":{"rendered":"<p><br \/>\n<\/p>\n<div data-testid=\"companionColumn-0\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">The Trump administration is moving forward with a plan to provide Cold War-era plutonium from dismantled nuclear warheads to companies that want to convert the dangerous material into fuel for nuclear power plants.<\/p>\n<p class=\"css-ac37hb evys1bk0\">The plan has generated debate and some unease among nonproliferation experts. If finalized, it would mark the first time the U.S. government has made weapons-grade plutonium available to private companies. The Energy Department has more than 50 tons of surplus plutonium left over from nuclear weapons programs, and the agency <a class=\"css-yywogo\" href=\"https:\/\/www.energy.gov\/nnsa\/articles\/nnsa-issues-final-surplus-plutonium-disposition-program-environmental-impact\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">had previously been planning<\/a> to dilute much of that material and bury it.<\/p>\n<p class=\"css-ac37hb evys1bk0\">Some of the nuclear start-ups trying to obtain that plutonium say that transforming the waste into fuel is a better way to dispose of it.<\/p>\n<p class=\"css-ac37hb evys1bk0\">On Tuesday, the Energy Department said that it had selected five companies to enter into \u201cadvanced negotiations\u201d to potentially receive some surplus plutonium. That includes Oklo, a California-based nuclear power company, which plans to partner with Newcleo, a European developer of advanced nuclear reactors.<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-1\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">Using plutonium for fuel, Oklo and Newcleo said, could solve a looming problem: Energy firms want to build a new wave of nuclear reactors, but the United States can\u2019t yet make enough conventional fuel from uranium to supply the plants. Harvesting old plutonium stockpiles could provide a short-term fix.<\/p>\n<p class=\"css-ac37hb evys1bk0\">\u201cA lack of fuel is one of the biggest choke points in expanding nuclear power right now,\u201d said Jacob DeWitte, the chief executive of Oklo, which <a class=\"css-yywogo\" href=\"https:\/\/oklo.com\/newsroom\/news-details\/2025\/Oklo-and-Los-Alamos-National-Lab-Conduct-Fast-Spectrum-Plutonium-Criticality-Experiment\/default.aspx\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">is developing a novel type of small reactor<\/a> intended to run on plutonium. \u201cThis will help us get more nuclear power online faster.\u201d<\/p>\n<p class=\"css-ac37hb evys1bk0\">The plan has been criticized by some Democrats and nuclear nonproliferation experts, <a class=\"css-yywogo\" href=\"https:\/\/www.nti.org\/news\/executive-orders-could-create-security-and-proliferation-risks-while-delaying-deployment-of-nuclear-energy\/\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">who point out<\/a> that plutonium can be used to create nuclear weapons and argue that it needs extremely strict safeguards. Critics also say that past efforts by the United States and other governments to turn plutonium into fuel for reactors have faced technical difficulties and soaring costs.<\/p>\n<p class=\"css-ac37hb evys1bk0\">\u201cCountries have tried this before, and they concluded that, as nice as it would be to use that plutonium as fuel, it\u2019s really just a liability and we need to dispose of it permanently,\u201d said Scott Roecker, a vice president at the Nuclear Threat Initiative, a nonprofit group dedicated to reducing the spread of nuclear weapons.<\/p>\n<p class=\"css-ac37hb evys1bk0\">The plan is not yet final, and companies will still have to negotiate with the federal government over how to secure and transfer the plutonium. In addition to Oklo, the Energy Department said it had also selected four other companies \u2014 Standard Nuclear, Exodys Energy, SHINE Technologies and Flibe Energy \u2014 to enter into advanced negotiations to receive the material under its Surplus Plutonium Utilization Program, which was established last year.<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-2\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">The program \u201cis anticipated to help companies unlock the next level of private funding to broaden domestic nuclear fuel supplies, spur innovation on American recycling technologies, and unlock private sector funding to fuel the nation\u2019s nuclear renaissance,\u201d said Michael Goff, the principal deputy assistant secretary of nuclear energy, in a statement.<\/p>\n<p class=\"css-ac37hb evys1bk0\">Oklo\u2019s stock price was up more than 4 percent on Tuesday after the company announced its involvement in the program.<\/p>\n<p class=\"css-ac37hb evys1bk0\">The Energy Department has been debating for years what to do with the large amounts of plutonium in its possession.<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-3\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">Plutonium does not typically exist in nature: It is a byproduct of nuclear fission, the process that powers nuclear reactors. In the 20th century, the United States created and stockpiled roughly 100 tons of the material as a key component for nuclear weapons.<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-4\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">Since the end of the Cold War, however, the U.S. military has dismantled thousands of nuclear warheads, leaving behind a stockpile of surplus plutonium at heavily guarded federal facilities across the country. Plutonium-239, the isotope used for weapons, is highly toxic if inhaled and has a half-life of 24,000 years.<\/p>\n<p class=\"css-ac37hb evys1bk0\">In the 2000s, the U.S. government sought to build a plant in Savannah River, S.C., that would take surplus plutonium and blend it with uranium to create a mixed oxide fuel, or MOX, that could be used in nuclear power plants, which typically run on uranium alone. But the project was plagued by delays and cost overruns, and in 2018, the first Trump administration <a class=\"css-yywogo\" href=\"https:\/\/world-nuclear-news.org\/Articles\/US-MOX-facility-contract-terminated\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">canceled the program<\/a>, whose expected price tag had risen to more than $50 billion.<\/p>\n<p class=\"css-ac37hb evys1bk0\">The Energy Department that same year <a class=\"css-yywogo\" href=\"https:\/\/www.gao.gov\/products\/gao-20-166\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">announced a plan<\/a> to instead take 34 metric tons of surplus plutonium, dilute it so that it could no longer be used for weapons, and bury it in New Mexico. Doing so was estimated to cost $20 billion.<\/p>\n<p class=\"css-ac37hb evys1bk0\">But those plans changed again last May, when President Trump <a class=\"css-yywogo\" href=\"https:\/\/www.nytimes.com\/2025\/05\/23\/climate\/trump-executive-order-nuclear-power.html\" title=\"\" target=\"_blank\" rel=\"noopener\">issued executive orders<\/a> aimed at speeding up the construction of nuclear power plants in the United States. In <a class=\"css-yywogo\" href=\"https:\/\/www.whitehouse.gov\/presidential-actions\/2025\/05\/reinvigorating-the-nuclear-industrial-base\/\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">one order<\/a>, Mr. Trump told the Energy Department to identify any federally owned plutonium and once again explore converting it into fuel.<\/p>\n<p class=\"css-ac37hb evys1bk0\">Working with plutonium can be more challenging than working with uranium \u2014 the most common element used to make nuclear fuel \u2014 and typically requires specialized handling and ventilation systems. Because plutonium can be used to make bombs, it also needs high levels of security. Some of the government\u2019s plutonium may also still be in weapons that haven\u2019t yet been dismantled, in which case it will need to be processed and declassified before handed over.<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-5\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">Some Democrats have opposed the plan to hand over plutonium to the private sector, which the Energy Department <a class=\"css-yywogo\" href=\"https:\/\/sam.gov\/workspace\/contract\/opp\/0fbcbf2a8f5f448ea58e534cf15f1672\/view\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">initially announced<\/a> last year.<\/p>\n<p class=\"css-ac37hb evys1bk0\">\u201cIt raises serious weapons proliferation concerns, makes little economic sense, and may adversely affect the nation\u2019s defense posture,\u201d Senator Edward Markey of Massachusetts and Representatives Don Beyer of Virginia and John Garamendi of California <a class=\"css-yywogo\" href=\"https:\/\/www.markey.senate.gov\/imo\/media\/doc\/plutonium_transfer_to_private_industry.pdf\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">wrote in a September letter to the agency<\/a>.<\/p>\n<p class=\"css-ac37hb evys1bk0\">The companies say they are prepared to deal with logistical challenges.<\/p>\n<p class=\"css-ac37hb evys1bk0\">In an interview, Stefano Buono, the chief executive of Newcleo, said his company planned to build a fuel fabrication facility in Savannah River, S.C., near the site of the canceled MOX project. He said Newcleo could succeed where previous efforts had failed.<\/p>\n<p class=\"css-ac37hb evys1bk0\">\u201cThe last time this was tried, it was not run as a private company, and there were basically no clients for the fuel,\u201d said Mr. Buono. \u201cWe think we can do this at a very competitive cost.\u201d The plant, he said, could produce a wide range of nuclear fuels from MOX fuels to metallic plutonium fuels.<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-6\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">\u201cIf we can do this economically, we can also help reduce nuclear waste,\u201d he added. \u201cThat\u2019s the most sustainable option.\u201d<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-7\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">The Trump administration has set a goal of quadrupling the size of the U.S. nuclear fleet by 2050, and many companies are developing a new generation of advanced reactors that are meant to be smaller and easier to finance than older reactors.<\/p>\n<p class=\"css-ac37hb evys1bk0\">Yet many of those advanced reactors will require a specialized type of enriched uranium for fuel, known as HALEU, and the United States has lost much of its enrichment capacity in recent decades. A <a class=\"css-yywogo\" href=\"https:\/\/www.energy.gov\/ne\/domestic-low-enriched-uranium-supply-chain\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">large fraction of enriched uranium for nuclear power plants<\/a> still comes from Russia. While the Energy Department is spending billions of dollars to build up domestic fuel supply chains, that will take years, and Oklo and Newcleo are betting they can create fuel from plutonium more quickly as a stopgap.<\/p>\n<p class=\"css-ac37hb evys1bk0\">\u201cThe plutonium is ready now,\u201d said Caroline Dewitte, the chief operating officer of Oklo. \u201cWe just have to fabricate it.\u201d<\/p>\n<p class=\"css-ac37hb evys1bk0\">Oklo is developing a type of so-called fast reactor that can run on either uranium fuel, recycled nuclear waste or plutonium. The company <a class=\"css-yywogo\" href=\"https:\/\/www.businesswire.com\/news\/home\/20251217633387\/en\/Oklo-and-Los-Alamos-National-Lab-Conduct-Fast-Spectrum-Plutonium-Criticality-Experiment\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">has been conducting experiments<\/a> at Los Alamos National Laboratory in New Mexico on using plutonium as fuel.<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-8\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">Mr. Markey has raised concerns that Energy Secretary Chris Wright had previously sat on Oklo\u2019s board before joining the government. Mr. Wright has since divested his shares and has publicly pledged to \u201cnot participate personally and substantially\u201d in decisions regarding Oklo.<\/p>\n<p class=\"css-ac37hb evys1bk0\">Separately, the Trump administration is pursuing efforts to expand <a class=\"css-yywogo\" href=\"https:\/\/www.energy.gov\/em\/articles\/department-energy-seeks-partner-private-sector-used-nuclear-fuel-recycling\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">nuclear waste recycling and reprocessing<\/a>, which could involve harvesting plutonium from the leftover waste of nuclear power plants and creating more fuel, something that <a class=\"css-yywogo\" href=\"https:\/\/www.orano.group\/en\/unpacking-nuclear\/mox-a-fuel-assembly-made-from-recycled-nuclear-fuel\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">France already does on a small scale<\/a>.<\/p>\n<p class=\"css-ac37hb evys1bk0\">To some experts, that is worthwhile. The world only has a finite amount of uranium. If nuclear power were to expand greatly across the planet, countries may eventually need some sort of reprocessing to power those reactors.<\/p>\n<p class=\"css-ac37hb evys1bk0\">\u201cIf we\u2019re really serious about expanding humanity\u2019s use of nuclear power, then using plutonium makes a lot of sense,\u201d said Nick Touran, a nuclear engineer who runs the consultancy What Is Nuclear.<\/p>\n<p class=\"css-ac37hb evys1bk0\">Yet nuclear waste recycling unnerves some nuclear nonproliferation experts. Starting in the 1970s, the United States <a class=\"css-yywogo\" href=\"https:\/\/sgp.fas.org\/crs\/nuke\/RS22542.pdf\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">sought to discourage other countries<\/a> from reprocessing nuclear waste over concerns that it would create significant amounts of plutonium that could be diverted into weapons programs. New efforts to turn plutonium into fuel could break that longstanding taboo, critics say.<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<div data-testid=\"companionColumn-9\">\n<div class=\"css-53u6y8\">\n<p class=\"css-ac37hb evys1bk0\">\u201cPlutonium-based fuels and reprocessing have a poor track record when introduced in civilian nuclear energy programs,\u201d Ernest Moniz, a nuclear physicist who served as energy secretary during the Obama administration, <a class=\"css-yywogo\" href=\"https:\/\/www.nti.org\/news\/executive-orders-could-create-security-and-proliferation-risks-while-delaying-deployment-of-nuclear-energy\/\" title=\"\" rel=\"noopener noreferrer\" target=\"_blank\">wrote last year<\/a>.<\/p>\n<p class=\"css-ac37hb evys1bk0\">Trying to revive the efforts, he added, \u201cwould introduce long-recognized security risks and have the unintended consequence of impeding nuclear energy expansion just as momentum builds for such an outcome.\u201d<\/p>\n<\/div>\n<aside class=\"css-ew4tgv\" aria-label=\"companion column\"\/><\/div>\n<p><br \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Trump administration is moving forward with a plan to provide Cold War-era plutonium from dismantled nuclear warheads to companies<\/p>\n","protected":false},"author":1,"featured_media":31179,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_animmysite_disable_animation":false,"fifu_image_url":"https:\/\/static01.nyt.com\/images\/2026\/04\/29\/climate\/00cli-plutonium-fuel-HFO\/00cli-plutonium-fuel-HFO-facebookJumbo.jpg","fifu_image_alt":"","footnotes":""},"categories":[212],"tags":[],"class_list":["post-31178","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trending-news"],"_links":{"self":[{"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/posts\/31178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/comments?post=31178"}],"version-history":[{"count":0,"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/posts\/31178\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/media\/31179"}],"wp:attachment":[{"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/media?parent=31178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/categories?post=31178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/trendifyhubusa.com\/index.php\/wp-json\/wp\/v2\/tags?post=31178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}