HILL AIR FORCE BASE, Utah — The Pentagon and the Energy Department for the first time airlifted a small nuclear reactor from Riverside County’s March Air Reserve Base to Utah, demonstrating what they say is the U.S. potential to quickly deploy nuclear power for military and civilian use.
The nearly 700-mile flight last weekend — which transported a 5-megawatt microreactor without nuclear fuel — highlights the Trump administration’s drive to promote nuclear energy to help meet skyrocketing demand for power from artificial intelligence and data centers, as well as for use by the military. Critics question the safety and viability of such endeavors.
Energy Secretary Chris Wright and Undersecretary of Defense Michael Duffey, who traveled with the privately built reactor, hailed the Sunday trip on a C-17 military aircraft as a breakthrough for U.S. efforts to fast-track commercial licensing for the microreactors, part of a broader effort by the Trump administration to reshape the country’s energy landscape.
A new emphasis on nuclear energy
President Trump touts nuclear power — a carbon-free source of electricity, though one with a long history of environmental damage — as a reliable energy source, even as he has been broadly hostile to renewable energy and prioritizes coal and other fossil fuels to produce power.
Skeptics warn that nuclear energy poses risks and say microreactors may not be safe or feasible and have not proved they can meet demand for a reasonable price.
Wright brushed those concerns aside as he declared progress on Trump’s push for a quick escalation of nuclear power. The president signed a series of executive orders last year that allow Wright to approve some advanced reactor designs and projects, taking authority away from the independent Nuclear Regulatory Commission, which has regulated the U.S. nuclear industry for five decades.
“Today is history. A multi-megawatt, next-generation nuclear power plant is loaded in the C-17 behind us,” Wright said before the two-hour flight from March Air Reserve Base to Hill Air Force Base in Utah.
The minivan-sized reactor transported by the military is one of at least three that will reach “criticality” — when a nuclear reaction can sustain an ongoing series of reactions — by July 4, as Trump has promised, Wright said.
“That’s speed, that’s innovation, that’s the start of a nuclear renaissance,” he said.
Microreactors would be for civilian and military use
There are 94 operable nuclear reactors in the U.S. that generate about 19% of the country’s electricity, according to the U.S. Energy Information Administration. That’s down from 104 reactors in 2013 and includes two new commercial reactors in Georgia that were the nation’s first large reactors built from scratch in a generation.
Recognizing delays inherent to deployment of new, full-scale reactors, the industry and government have focused in recent years on more efficient designs, including a small modular reactor proposed by the nation’s largest public power company, the Tennessee Valley Authority.
Microreactors, designed to be portable, can “accelerate the delivery of resilient power to where it’s needed,” Duffey said. Eventually, the mobile reactors could provide energy security on a military base without the civilian grid, he and other officials said.
The demonstration flight “gets us closer to deploy nuclear power when and where it is needed to give our nation’s warfighters the tools to win in battle,” Duffey said.
The reactor transported to Utah will be able to generate up to 5 megawatts of electricity, enough to power 5,000 homes, said Isaiah Taylor, CEO of Valar Atomics, the Hawthorne-based startup that produced the reactor. The company hopes to start selling power on a test basis next year and become fully commercial in 2028.
Some safety concerns haven’t been addressed, experts say
Edwin Lyman, director of nuclear power safety at the Union of Concerned Scientists, said the transport flight — which included a throng of reporters, photographers and TV news crews — was little more than “a dog-and-pony show” that merely demonstrated the Pentagon’s ability to ship a piece of heavy equipment.
The flight “doesn’t answer any questions about whether the project is feasible, economic, workable or safe — for the military and the public,” Lyman said in an interview.
The Trump administration “hasn’t made the safety case” for how microreactors, once loaded with nuclear fuel, can be transported securely to data centers or military bases, Lyman said.
Officials also have not resolved how nuclear waste will be disposed of, although Wright said the Energy Department is in talks with Utah and other states to host sites that could reprocess fuel or handle permanent disposal.
The microreactor flown to Utah will be sent to the Utah San Rafael Energy Lab for testing and evaluation, Wright said. Fuel will be provided by the Nevada National Security site, Taylor said.
“The answer to energy is always more,” Wright said. After four years of restrictions on fossil fuels and other polluting energy under the Biden administration, he said, “now we’re trying to set everything free. And nuclear will be flying soon.”
Daly writes for the Associated Press.
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