In 2025, New York Gov. Kathy Hochul was a vocal supporter of new nuclear development in the state. In October, she called on the New York Power Authority (NYPA)—the state’s public electric utility—to add 1 GW of new nuclear.

At the tail end of December, New York made more nuclear progress on three fronts. Hochul signed an agreement with Ontario Premier Doug Ford to collaborate on new nuclear development, Ontario Power Generation (OPG) signed a memorandum of understanding with the NYPA, and New York finalized its 2025 energy plan.

New York City–based Nano Nuclear Energy has signed a memorandum of understanding with the University of Illinois Board of Trustees, on behalf of the University of Illinois–Urbana-Champaign, to collaborate on the development, construction, and operation of the company’s Kronos MMR (micro modular reactor) as an on-campus research reactor. The new MOU represents the latest aspect of Nano Nuclear’s partnership on the Kronos MMR project with the university, which includes state funding for a manufacturing and research center, to be located in the Chicago suburb of Oak Brook.

Douglas Weaver, nominated to the Nuclear Regulatory Commission by President Trump and confirmed by the U.S. Senate, was sworn in on December 22 as a commissioner for a term ending June 30, 2026. The appointment brings the NRC to its full five members. Weaver fills a seat that had been vacant since the resignation of Annie Caputo in July 2025, and he is one of only a handful of former NRC staff members to serve on the commission.

Following up on an October announcement on plans to invest more heavily in nuclear power, Duke Energy closed out 2025 by submitting an early site permit application to the Nuclear Regulatory Commission. This ESP application is for a site near the Belews Creek Steam Station, a coal and natural gas plant in Stokes County, N.C., where Duke has been pursuing a new nuclear project for two years.

’Twas the night before Christmas when all through the house

No electrons were flowing through even my mouse.

All devices were plugged by the chimney with care

With the hope that St. Nikola Tesla would share.

Southern Nuclear is leading the charge in artificial intelligence integration, with employee-developed applications driving efficiencies in maintenance, operations, safety, and performance.

The tools span all roles within the company, with thousands of documented uses throughout the fleet, including improved maintenance efficiency, risk awareness in maintenance activities, and better-informed decision-making. The data-intensive process of preparing for and executing maintenance operations is streamlined by leveraging AI to put the right information at the fingertips for maintenance leaders, planners, schedulers, engineers, and technicians.

Urenco USA has highlighted the completion of a successful year of advancing nuclear fuel supply in the U.S. by achieving two new milestones this month: The first production of enriched uranium above 5 percent uranium-235, and the startup of the company’s next cascade of centrifuges as part of its capacity installation program.

Trump Media & Technology Group, the American media and technology company majority owned by President Trump, and California-based fusion company TAE Technologies, announced on Thursday the signing of a definitive merger agreement to combine in an all-stock transaction valued at more than $6 billion.

Progress in the Department of Energy’s Reactor Pilot Program continues as Natura Resources has executed an Other Transaction Agreement (OTA) with the DOE for the company’s Molten Salt Research Reactor being pursued in close collaboration with Abilene Christian University (ACU) in Texas. Reactor projects participating in the program would progress through DOE authorization and oversight rather than Nuclear Regulatory Commission licensing.

Three commercial power reactors across two Illinois nuclear power plants—Constellation’s Clinton and Dresden—have had their licenses renewed for 20 more years by the Nuclear Regulatory Commission.