Fusion


Thought experiment: What would it be like inside a tokamak?

February 27, 2025, 12:00PMANS News
Korea’s KSTAR tokamak. (Photo: Korea Institute of Fusion Energy)

The ITER organization (IO) recently published an article asking, “Have you ever wondered what it’s like inside an operating tokamak?” For speculative answers, the international nuclear fusion project turned to electrical engineer Michael Walsh, the new head of ITER’s Fusion Technology—Instrumentation & Control Division and previous head of ITER’s Diagnostics Division.

Type One Energy inks expanded fusion development deal with TVA

February 13, 2025, 7:02AMNuclear News
Concept art showing Type One Energy’s Infinity One prototype stellarator inside TVA’s Bull Run fossil plant. (Photo: Business Wire)

Type One Energy said it has entered into a cooperative agreement with the Tennessee Valley Authority to jointly develop plans for a potential TVA fusion power plant project in the Tennessee Valley region using Type One Energy stellarator fusion power technology. The company said its 350-MWe fusion pilot power plant, named Infinity Two, could provide a complementary source of baseload electrical generation for the region as early as the mid-2030s.

UC San Diego joins General Atomics–led fusion collaborative

February 12, 2025, 7:02AMNuclear News
An experimental chamber that will be used by UC San Diego as part of the TINEX project. (Photo: David Baillot/UC San Diego Jacobs School of Engineering)

The University of California–San Diego has joined a new research collaborative focused on overcoming critical obstacles in developing and scaling up inertial fusion power plants. Led by San Diego-based General Atomics, the group was one of six research teams that were collectively awarded $107 million in January by the Department of Energy as part of the Fusion Innovative Research Engine (FIRE) Collaboratives.

Fusion fired up? Milestones met and six FIRE collaboratives named

January 22, 2025, 7:01AMNuclear News
Thea Energy, one of three fusion companies that have met early milestones in the design of a fusion pilot plant has opened a new headquarters facility in Kearny, N.J. (Photo: Thea Energy)

The Department of Energy announced six Fusion Innovative Research Engine (FIRE) collaboratives set to receive funding of $107 million on January 16. The six selected teams represent a first round of awards from a funding opportunity announcement released in May 2023 as part of the DOE Office of Fusion Energy Sciences’ (FES) goal of creating a “fusion innovation ecosystem.”

Commonwealth Fusion Systems picks Virginia site for its first power plant

December 19, 2024, 9:30AMNuclear News
A rendering of Commonwealth Fusion Systems planned ARC power plant. (Image: CFS)

Commonwealth Fusion Systems (CFS) has announced that it plans to build a fusion power plant, named ARC, at the James River Industrial Park in Chesterfield County, Va.—and that it expects to be the first company to make fusion power available at grid scale.

Acceleron Fusion raises $24M in seed funding to advance low-temp fusion

December 11, 2024, 3:52PMNuclear News
The Acceleron Fusion team at the High Intensity Proton Accelerator facility at the Paul Scherrer Institute in September 2024. (Photo: Acceleron Fusion)

Cambridge, Mass.–based fusion startup Acceleron Fusion announced that it has closed a $24 million Series A funding round co-led by Lowercarbon Capital and Collaborative Fund. According to Acceleron, the funding will fuel the company’s efforts to advance its low-temperature muon-catalyzed fusion technology.

Tokamak Energy teams up with the U.S. and U.K. for $52M fusion project

December 10, 2024, 7:01AMNuclear News
Tokamak Energy’s ST40. (Photo: Tokamak Energy)

Tokamak Energy’s ST40 experimental fusion facility will receive a $52 million upgrade under a joint public-private effort with the U.S. Department of Energy and the U.K. Department of Energy Security and Net Zero (DESNZ) aimed at advancing the fusion science and technology needed to deliver a future pilot plant.

Wisconsin fusion start-up receives help from the Green and Gold

December 9, 2024, 9:23AMNuclear News
The Realta Fusion and ARPA-E team at the WHAM facilities in 2023. (Photo: DOE/ARPA-E)

TitletownTech, a venture capital firm formed out of a partnership between Microsoft and the Green Bay Packers, has invested in Realta Fusion, a private fusion startup company that was spun out of an ARPA-E-funded fusion project at the University of Wisconsin–Madison in 2022. Realta is developing modular, compact, magnetic mirror fusion energy generators as an economic, zero-carbon solution to power AI-driven infrastructure and other industrial applications. TitletownTech did not disclose the details of its investment.

UKIFS takes reins of the U.K.’s STEP fusion program

November 6, 2024, 7:01AMNuclear News
Chapman (left) and Methven at the West Burton power station. (Photo: UKIFS)

Leadership of the United Kingdom’s STEP (Spherical Tokamak for Energy Production) fusion program has transitioned to U.K. Industrial Fusion Solutions Ltd. (UKIFS), a wholly owned subsidiary of the U.K. Atomic Energy Authority (UKAEA). UKIFS was established in February 2023 to lead a public-private partnership that will design, build, and operate the STEP prototype fusion energy plant in Nottinghamshire in England’s East Midlands region.

What’s different about Pacific Fusion’s pulsed magnetic concept?

October 30, 2024, 7:00AMNuclear News
Image: Pacific Fusion

With more than 40 fusion development companies announcing plans and funding, it’s hard for a newcomer to stand out, but Pacific Fusion is giving it a try. The company, based in Fremont, Calif., was founded in summer 2023 and emerged from “stealth mode” last Friday with $900 million in committed funding from investors, a team that includes people directly involved in the successful ignition experiments at Lawrence Livermore National Laboratory’s National Ignition Facility (NIF), and a technical paper that makes a case for a pulsed magnetic fusion approach to fusion energy.

Colorado State begins constructing laser lab as public-private research hub

October 28, 2024, 12:03PMNuclear News
Colorado State University hosted a ground-breaking event for a new laser research facility being built in partnership with Marvel Fusion at the university’s Foothills Campus. (Image: CSU)

In the foothills of the Rocky Mountains on the outskirts of Fort Collins, Colo.—home to Colorado State University—work began this month on a new laser facility funded by a public-private partnership. The private portion is $150 million from Marvel Fusion, announced in August 2023, while $12.5 million—the latest funding for CSU from the Department of Energy’s Office of Fusion Energy Sciences (FES)—will support the new facility as part of LaserNetUS, a laser research network operated by DOE-FES to provide access to laser facilities for multidisciplinary researchers from the United States and abroad.

DOE issues $49 million to shift national lab research toward fusion energy vision

October 10, 2024, 12:00PMNuclear News

The Department of Energy announced yesterday a total of $49 million in funding for 19 projects in the Foundational Fusion Materials, Nuclear Science, and Technology programs that span functional and structural materials R&D for heating technology, magnet technology, blankets, fuel cycle, and first wall research.

Senators probe global competition in fusion energy deployment

September 25, 2024, 7:00AMNuclear News
A still shot from the Senate ENR Hearing to Examine Fusion Energy Technology Development.

Hours before the Senate Committee on Environment and Natural Resources (ENR) opened a scheduled September 19 hearing on fusion energy technology development, CNN published an article titled “The US led on nuclear fusion for decades. Now China is in a position to win the race.” The article was entered into the hearing record, but senators had already gotten the message.

Dust: Trapped by a laser or threatening ITER, it’s making headlines

September 17, 2024, 7:02AMNuclear News
An optically trapped microparticle in high vacuum is visible as a white dot levitated between two lenses, which are used to focus and collect invisible infrared laser light used to trap the particle. (Photo: DOE/Yale Wright Lab)

Start talking about dust in a vacuum, and some people will think of household chores. But dust has featured in recent nuclear science and engineering headlines in curious ways: ITER is deploying oversized dust covers inspired by space satellites in the south of France, while at Yale University, researchers have watched every move of a dust-sized particle levitating in a laser beam for telltale twitches that indicate radioactive decay.

General Atomics R&D team recognized for contributions to NIF’s fusion ignition

August 13, 2024, 9:43AMNuclear News
Members of the Metrology Research and Development team working with the 4Pi system in a clean room at GA headquarters. (Photo: General Atomics)

The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory has achieved fusion ignition at least five times, each time by directing its 192 high-powered lasers on a capsule containing a tiny, 2-millimeter target filled with hydrogen fuel. Not every shot achieves ignition, however. Tiny imperfections in the targets can mean fizzle, not fusion. But each of the targets used in successful experiments to date have something in common: they were characterized and selected by the 4Pi Integrated Metrology System, a new measurement system developed by General Atomics. Now, the team behind that system is being recognized.

GA announced last week that its Metrology Research and Development team had won the 2024 "Team of the Year" R&D 100 Professional Award from R&D World. The magazine that each year announces the R&D 100 awards that have been dubbed the “Oscars of Innovation” also selects just one “Team of the Year” and announces that award together with four other professional awards.