Nuclear

The Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL), Type One Energy and the University of Tennessee in Knoxville are partnering to establish a world-class facility that will drive American innovation and move fusion energy closer to reality. This high-heat flux (HHF) facility, located at the Tennessee Valley Authority’s (TVA) Bull Run Energy Complex in East Tennessee, will evaluate how materials react under extreme conditions in a fusion device.

The electricity sector faces a timing problem that’s becoming impossible to ignore. Data centers, artificial intelligence (AI) deployment, industrial reshoring, and broader electrification are driving load growth at rates not seen in decades—and much of that new demand wants carbon-free, firm power. Nuclear checks those boxes. But can the industry deliver capacity fast enough? POWER […]

Deep Isolation Nuclear, an innovator in nuclear waste disposal technology, on January 13 said the company has successfully completed its Project SAVANT (Sequential Advancement of Technology for Deep Borehole Disposal), a two-year research initiative funded by the U.S. Department of Energy Advanced Research Projects Agency–Energy (ARPA-E).

For much of the 20th century, the U.S. set the global standard for civilian nuclear energy. American innovation shaped reactor design, safety culture, and regulatory practice worldwide. Yet today, as nuclear power regains prominence amid concerns over climate, energy security, and industrial competitiveness, America faces a quieter but more consequential challenge: the erosion of its nuclear fuel supply chain.

In-Depth: Meta’s suite of three landmark agreements is poised to provide the financial certainty to extend aging plants, accelerate first-of-a-kind advanced reactor deployments, and relieve PJM’s tightening capacity constraints while establishing the hyperscaler as an anchor customer for a 6.6-GW corporate-backed nuclear fleet. In a stunning move that reinforces Big Tech’s growing role in underwriting […]

Recent breakthroughs at U.S. fusion labs, along with new public-private partnerships, are bringing us closer than ever to realizing fusion energy’s limitless potential. However, the U.S. has a major gap to fill in fusion research and development (R&D), and workforce development.

Nuclear energy company Commonwealth Fusion Systems (CFS) said it would collaborate with chipmaker NVIDIA and energy technology group Siemens to develop a digital twin of its SPARC fusion machine. The companies said their work will apply artificial intelligence (AI) and data and project management tools to accelerate commercial fusion.

A North Carolina-headquartered developer of small modular nuclear power plants announced it has an agreement with the U.S. Dept. of Energy (DOE) for an initiative to build and operate a molten salt reactor.

The U.S. Department of Energy (DOE) has issued its first production-scale task orders under a $2.7-billion uranium enrichment program launched in 2024, awarding $900 million each to Centrus Energy Corp., General Matter, and Orano Federal Services to expand domestic capacity for conventional low-enriched uranium (LEU) and high-assay low-enriched uranium (HALEU) over the next decade. The […]

Vattenfall, Industrikraft Advance SMR Program at Ringhals in High-Stakes Deal. Swedish state utility Vattenfall and industrial consortium Industrikraft i Sverige AB signed an agreement, announced on Nov. 10

In early 2020, the prevailing narrative in the power sector was a continuation story of the developments from the decade before: renewable buildout will keep compounding, thermal capacity will keep retiring (albeit at a slower rate), markets will evolve to compensate for flexible generation products, capital will keep moving earlier in the development value chain […]

Entergy Arkansas, the utility that provides electricity to about 735,000 customers in 63 counties in that state, announced a plan to add about 2.6 GW of new power generation capacity, in part by converting old coal-fired units to burn natural gas. It also is renewing the operating license for the 1.8-GW Arkansas Nuclear One power plant, the state’s only nuclear power station, with plans to invest in new equipment that would increase the facility’s output.

Local government officials in Japan have given approval for the restart of a reactor at the world’s largest nuclear power plant. The Kashiwazaki-Kariwa facility, where seven reactors have total generation capacity of nearly 8,000 MW, has sat idle since early 2012 in the wake of the Fukushima nuclear disaster in 2011, which caused Japan to shut down its nuclear power industry.

A Bulgarian energy company, along with a European project developer, has signed a letter of intent for a joint venture (JV) that could build a fleet of as many as six small modular reactors (SMRs) in the country. Blue Bird Energy AD and SGE S.A. on December 22 announced the JV would deploy BWRX-300 SMRs from GE Vernova Hitachi (GVH).

The fusion industry just achieved a major milestone—and this time, it’s not about science.

Small modular reactor (SMR) developer X-energy has secured a binding reservation agreement with South Korean power-generation equipment giant Doosan Enerbility to manufacture main power system steel components for 16 Xe-100 SMRs. As part of the decisive move to industrialize the supply chain for advanced nuclear energy, Doosan has also committed to building a new dedicated SMR […]

The Trump Media & Technology Group (TMTG) is merging with a California-based company focused on development of nuclear fusion in a $6-billion deal. The all-stock transaction announced December 18 would create one of the first publicly traded fusion companies.

Three advanced nuclear developers—Radiant, Last Energy, and ARC Clean Technology—announced the closing of major private funding rounds in mid-December 2025, signaling renewed investor momentum behind microreactors and small modular reactors (SMRs) as the companies move from design and licensing into pilot deployment and early commercialization. The announcements—which span a new $300-million-plus round at Radiant, an […]

Global Energy Trends 2026   In this edition of Global Energy Trends, we examine how electricity markets are navigating the continued tug-of-war between the three aspects of the energy trilemma (affordability, sustainability and security) and how both innovation and inertia are shaping the sector. The climate signals of 2025 are harsh but clear. Heat, drought, […]

Fusion technology company Thea Energy said it has completed its preconceptual fusion power plant design. The company, founded in 2022 as a spin-out of the Princeton Plasma Physics Laboratory and Princeton University, is advancing the stellarator as part of its Helios system.

An energy company focused on supporting artificial intelligence (AI) through infrastructure has signed a memorandum of understanding (MOU) with a Utah-based nuclear power services company, as the groups evaluate ways to provide electricity for a massive data center campus in that state.

The GE Vernova Hitachi Nuclear Energy (GVH) BWRX-300 small modular reactor (SMR) has completed Step 2 of the Generic Design Assessment (GDA) process in the UK.

As the global demand for clean energy intensifies, nuclear power is enjoying a resurgence not seen in decades. However, this renewed interest has exposed a critical vulnerability in the U.S. energy sector: a massive disconnect between uranium consumption and domestic production. As a guest on The POWER Podcast, Thomas Lamb, president and CEO of Myriad […]

A California-based nuclear energy company with plans to place small modular reactors (SMRs) in mile-deep boreholes said it will break ground December 9 for a pilot project at a site in Parsons, Kansas. Berkeley-headquartered Deep Fission on December 4 said the company’s Gravity Nuclear Reactor is bring prepared for the Great Plains Industrial Park. Deep […]

Project Pele, the Department of War’s (DOW’s) first-of-its-kind transportable nuclear microreactor prototype, has received its tri-structural isotropic (TRISO) particle fuel at Idaho National Laboratory (INL), where formal system testing is slated to begin as early as 2027. The fuel—manufactured by BWXT Technologies (BWXT) and shipped from its Lynchburg, Virginia, facility—represents the first TRISO microreactor fuel […]

Idaho National Laboratory (INL) has selected the five commercial teams that will potentially demonstrate advanced applications—including data center integration—at its much-watched Microreactor Application Research Validation and Evaluation (MARVEL) platform, an 85-kWth/20-kWe liquid-metal-cooled test bed currently under construction at the lab. The initial selections, unveiled on Dec. 4, mark the “first potential end users for MARVEL,” […]

Framatome said it has been awarded a contract to upgrade several digital control systems at Energy Northwest’s Columbia Generating Station. The scope of the project includes system design, engineering, manufacturing, testing and installation for new digital feedwater level control and feedwater heater vents and drains systems. The upgrades announced December 4 are part of Energy […]

Antares, an advanced nuclear energy startup, announced the close of its $96-million Series B funding round, which was led by Shine Capital with participation from Alt Capital, Caffeinated, FiftyThree Stations, Industrious, and other investors.

The U.S. Department of Energy (DOE) said the agency has selected the Tennessee Valley Authority (TVA) and Holtec Government Services to support early deployments of advanced light-water small modular reactors (SMRs) in the U.S. The DOE on December 2 said project teams with the two groups will receive up to $800 million in “federal cost-shared funding” targeted for projects in Tennessee and Michigan.

POWER breaks down the top insights from Data Center POWER eXchange, its unique one-day summit curated by POWER’s editorial team and convened to examine the collision between accelerating data center load and tightening grid constraints.  The rise of artificial intelligence is poised to create the fastest, largest, and most concentrated surge of electricity demand in […]