There is extra significance to the American Nuclear Society holding its annual meeting in Orlando, Florida, this past week. That’s because in 1967, the state of Florida passed a law allowing Disney World to build a nuclear power plant.

As a primer to the American Nuclear Society Winter Conference and Expo, ANS Executive Director/Chief Executive Craig Piercy hosted a panel discussion titled “The State of Nuclear,” sponsored by the ANS Trustees of Nuclear. The October 29 discussion, the first in a two-part series, featured five thought leaders from the nuclear community as they reviewed the current state of nuclear power. The second panel will take place during the ANS Winter Conference in Orlando, Fla., on November 18.

Tech giant Amazon announced Wednesday new partnerships with Dominion Energy and X-energy to develop and deploy 5 gigawatts of nuclear energy to power needs across the country over the next 15 years.

New testing done at China’s Shidaowan nuclear power plant has confirmed its ability to be naturally cooled down, an industry-first milestone for achieving commercial-scale inherent safety, according to researchers.

Dominion Energy Virginia has issued a request for proposals from leading nuclear companies to study the feasibility of putting a small modular reactor at its North Anna nuclear power plant.

While the utility says it is not a commitment to build an SMR at the site, the RFP is “an important first step in evaluating the technology and the North Anna site to support Dominion Energy customers’ future energy needs consistent with the company’s most recent Integrated Resource Plan.”

Texans are likely to experience intermittent power outages this summer, according to an analysis by the Electric Reliability Council of Texas.

Members of ERCOT, the Public Utility Commission of Texas (PUCT), and others from the energy industry spoke to the state’s House of Representatives’ Committee on State Affairs earlier this week. ERCOT’s newest report indicates a 16 percent chance of an electric grid emergency and a 12 percent chance of rolling blackouts in August—likely occurring on nights when there is low wind power production.

Shikha Prasad

High-assay low-enriched uranium (HALEU) has emerged as a popular fuel choice for advanced small modular reactors due to its long power production periods before refueling. It is currently being pursued by TerraPower, X-energy, BWX Technologies, Kairos, Oklo, and other reactor companies. HALEU has a uranium-235 enrichment ranging from 5 percent to 20 percent, whereas traditional LWRs use low-enriched uranium fuel enriched up to 5 percent.

HALEU will provide power for longer durations, compared with traditional LWRs. But could it also provide an opportunity for more rapid proliferation, as is speculated in a 2023 National Academy of Sciences report on advanced nuclear reactors (nap.nationalacademies.org/catalog/26630/)?

If a nuclear proliferator conspires to divert fresh nuclear fuel for weapons production when it has not been used in a reactor, the effort required in separative work units (SWUs) to enrich U-235 from 5 percent to 90 percent and that required to enrich from 20 percent to 90 percent are both very small, compared with the effort required to enrich U-235 from its natural abundance to the initial 5 percent.

Advanced reactor company X-energy has been awarded $148.5 million in tax credits under the Inflation Reduction Act for construction of its TRISO-X fuel fabrication facility in Oak Ridge, Tenn.

Scientists at Argonne National Laboratory have partnered with Washington state–based Energy Northwest to look at alternative ways to cool nuclear reactors as climate change impacts relied-upon water sources.

U.S.-based reactor company X-energy has partnered with Canadian power producer TransAlta Corp. to study the feasibility of deploying an advanced small modular reactor at a fossil fuel power plant site in Alberta.

X-energy UK Holdings and Cavendish Nuclear together received a government award of £3.34 million ($4.23 million) for further development of advanced modular reactors. The award, which was announced earlier this week, is from the U.K. government’s Future Nuclear Enabling Fund.

The American Nuclear Society is hosting an online event on Thursday, March 28, from 11:00 a.m. to 12:00 p.m. (EDT) on advanced reactors. The latest technological developments will be discussed by representatives from BWX Technology, Kairos Power, Oklo, and X-energy.

The event is open to all, but registration is required.

X-energy has opened a regional operations and training center aimed at supporting future deployment of its advanced modular nuclear reactor fleet and the operators who will run it.

The Department of Energy’s Office of Clean Energy Demonstrations issued a final environmental assessment (EA) and finding of no significant impact in February for a cost-shared X-energy project to construct and operate a helium test facility (HTF) in Oak Ridge, Tenn. According to the EA, construction would begin in early 2024 and take X-energy and its contracted partner, Kinectrics, about one year to complete. the facility would then operate for six years, with the possibility of extensions for up to an additional 20 years, to test equipment for a demonstration of X-energy’s high-temperature, gas-cooled reactor technology and also to “serve the reactor community at large as the technology continues to develop and is adopted around the world.”

Designs for high-tech products, and the start-ups that offer them, will always outnumber the commercial successes. Ditto: many more power plants are proposed than actually get built, no matter what the technology.

This is an axiom of free-market economies, but in early November 2023 it became painfully obvious in the advanced reactor field. NuScale Power, the only advanced reactor that has made it through the licensing gauntlet, acknowledged that the consortium of utilities that was its intended launch customer had failed to put together a feasible package.

Another calendar year has passed. Before heading too far into 2024, let’s look back at what happened in 2023 in the nuclear community. In today's post, compiled from Nuclear News and Nuclear Newswire are what we feel are the top nuclear news stories from January through March 2023.

Stay tuned for the top stories from the rest of the past year.

NuScale announced today a 28 percent reduction in full-time staff, affecting 154 workers, as part of the company’s move to focus resources on “key strategic areas”— including deployment of its small modular reactor.

The new year is here, and so it is time for the Nuclear News review of 2023's top stories. The recap will appear in the January issue of the magazine, on its way to American Nuclear Society members right now. In the meantime, all ANS members can read the year's issues in the ANS member center, and also review some of the most-read stories from Nuclear Newswire below. Here’s to a Happy New Year!

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.

X-energy and the Department of Energy’s Office of Nuclear Energy have reached a cooperative agreement valued at $2.5 million to continue the development of X-energy’s mobile microreactor design, the company announced October 25. The agreement, which extends through 2024, supports X-energy’s work on architecture and key technologies for the preliminary design of a commercial transportable power plant expected to produce 3–5 MWe.