The Defense Innovation Unit announced April 10 next steps in the Advanced Nuclear Power for Installations (ANPI) program, launched in 2024 to deploy microreactor nuclear systems for increased power reliability at select military locations.

A team from Idaho National Laboratory and the Department of Energy’s Office of Nuclear Energy recently visited Carolina Fabricators Inc. (CFI) in West Columbia, S.C., to launch the fabrication process for the primary coolant system of the MARVEL microreactor. Battelle Energy Alliance, which manages INL, awarded the CFI contract in January.

Advanced nuclear reactor company Last Energy joined with two Republican state attorneys general in a lawsuit against the Nuclear Regulatory Commission, arguing that some microreactors should not require the commission’s approval.

Advanced nuclear company Oklo and data center developer Switch closed out 2024 by announcing a new partnership to deploy 12 GW of advanced nuclear power under a master power agreement.

American start-up Last Energy has received a letter of interest from the Export-Import Bank of the United States (EXIM), confirming the bank’s willingness to move forward with due diligence for $103.7 million in financing for the company’s project in southern Wales.

The Department of the Navy (DON), which comprises both the U.S. Navy and the U.S. Marine Corps, issued a request for information this week on potential deployment of clean energy generation on underutilized military lands.

The Department of Defense announced September 24 that it has broken ground on the site at Idaho National Laboratory’s Critical Infrastructure Test Range Complex (CITRC) where Project Pele, a transportable 1–5 MWe microreactor, will be tested. The DOD’s Strategic Capabilities Office (SCO) is in charge, on a mission to prove that a mobile microreactor can help meet the DOD’s increasing demand for resilient carbon-free energy for mission-critical operations in remote and austere environments.

The U.S. Army is asking nuclear companies to submit their proposals for microreactors that can be commissioned at military bases to provide clean, reliable power at two domestic military sites.

The bid solicitation window is short—just two weeks—but the army is asking for very high-level proposals from advanced nuclear companies who are ready to jump into action. Following the initial submission period, top contenders for the project will be invited back for pitch sessions; full contracts then will be negotiated.

Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.

After completing its business combination with AltC Acquisition Corp, Oklo Inc. began trading on the New York Stock Exchange under the ticker symbol OKLO this past Friday, May 10.

The company is aiming to provide clean, reliable, affordable nuclear energy to customers across the artificial intelligence, data center, energy, defense, and industrial markets. Sam Altman, chairman of Oklo since 2015 and former chief executive of AltC, called the first day on the NYSE a milestone for the entire team.

Next-generation reactor company Oklo Inc. is teaming up with Diamondback Energy Inc. to bring Oklo’s Aurora Powerhouse units to the American Southwest.

The companies signed a nonbinding letter of intent (LOI) this week to collaborate on a 20-year power purchase agreement that would provide 50 MW of electricity per unit to Diamondback’s Permian Basin operations area. The agreement lays out options to renew and extend the agreement for an additional 20-year term, since the units are designed to operate for 40 years without needing to refuel. Diamondback is an independent oil and gas company headquartered in Texas.

The Department of Energy announced February 7 that fuel for the MARVEL microreactor, which Idaho National Laboratory plans to host inside the Transient Reactor Test (TREAT) facility, is now being fabricated by TRIGA International, with the first fuel delivery expected in spring 2025. MARVEL operation was expected “by the end of 2024” as recently as May 2023, but that timeline had shifted by October, when the DOE said MARVEL “is expected to be completed in early 2025.” Now, according to the DOE’s latest announcement, “Fuel loading for MARVEL is anticipated to occur in 2026, with the microreactor expected to be on line by 2027.”

Westinghouse Electric Company and Ontario Power Generation have signed a memorandum of understanding establishing a framework to identify potential areas of cooperation for the deployment of nuclear technologies in Canada, the companies jointly announced this morning. (While based in Cranberry Township, Pa., Westinghouse is owned by Canadian firms Brookfield Asset Management and Cameco.)

Saskatchewan premier Scott Moe yesterday announced C$80 million (about $59 million) for the Saskatchewan Research Council (SRC) to pursue demonstration of Westinghouse Electric Company’s eVinci microreactor technology.

The United States and the Philippines last week signed a civil nuclear cooperation agreement—known in policy wonk jargon as a 123 Agreement.

X-energy, the Rockville, Md.–based small modular reactor/nuclear fuel developer, and Ares Acquisition Corporation (AAC), a publicly traded special-purpose acquisition company, have agreed to terminate their business combination agreement, effective immediately, the companies announced this week.

To help speed up commercialization of its eVinci microreactor, Westinghouse Electric Company this week launched a new design and manufacturing facility for the project near downtown Pittsburgh, Pa. Located in the borough of Etna, the 87,000-square-foot eVinci “accelerator hub” will be home to engineering and licensing operations, testing, prototype trials, business development, and sales, Westinghouse said in an October 24 announcement, adding that the facility will include manufacturing space for producing the “innovative heat pipes that are central to the eVinci technology.”

While initial operation of MARVEL, a tiny microreactor that will be installed and operated inside Idaho National Laboratory’s Transient Reactor Test (TREAT) Facility, might not occur until 2025, testing of a nonnuclear prototype is now under way at the New Freedom, Pa., manufacturing facility of Creative Engineers, Inc. (CEI). The Department of Energy announced the start of prototype testing on September 20.

Concept art of the BANR microreactor system. (Image: BWXT)

BWX Technologies last week announced a contract with the Wyoming Energy Authority (WEA) to evaluate the viability of deploying microreactors in the state.

The Lynchburg, Va., tech firm said its BWXT Advanced Technologies subsidiary will execute the two-year, two-phase agreement in close consultation with the state government and other Wyoming organizations and companies.

The Department of Defense announced on September 13 that it has awarded a contract option to X-energy for the “enhanced engineering design” of a microreactor that could serve as the transportable power source envisioned by the Strategic Capabilities Office’s (SCO) Project Pele. The DOD expects the award for one year of work to “allow a thorough analysis of design options,” resulting in a preliminary engineering design and “initiation of a regulatory preapplication process.”