It figures that Trump would make two false statements about the #Zaporizhzhia #nuclear plant. It is not the largest nuclear plant in the world. And it certainly can't be restarted quickly. newsukraine.rbc.ua/news/trump-s...

Featuring @jonatomic.bsky.social, @richardmnephew.bsky.social, @nucsafetyucs.bsky.social, and @atomicbell.bsky.social.

I'd say this was a joke but it's no laughing matter. They only way the NRC could approve this construction permit on such a ridiculously short schedule is by sweeping every significant safety issue under the rug or putting it off until the operating license application. www.nrc.gov/sites/defaul...

I was wondering about this. The draft peace plan proposes restarting the Zaporizhzhia #nuclear plant under IAEA supervision and sharing the power between Russia and Ukraine. But who will be the regulator? www.reuters.com/business/ene...

On Friday the South #Texas Project-2 #nuclear reactor automatically scrammed at full power after the main transformer locked out. Around the same time the reactor also lost two offsite power sources, causing two emergency diesel generators to start up. The reactor is still down.

My goodness. On Friday an Unusual Event was declared for more than 3 hours at the Clinton-1 #nuclear reactor in #Illinois after the emergency reserve aux transformer shorted out, causing a loss of offsite power. A worker was electrocuted and killed. A warning sign of the impact of reduced oversight?

Substations serving #nuclear plants were targeted. apnews.com/article/russ...

🚨 JUST IN: A newly declassified cable reinforces proliferation concerns about high-assay low-enriched uranium fuel, and reveals an urgent need for an international review of #HALEU use, writes Ed Lyman (@nucsafetyucs.bsky.social). #uranium #enrichment #proliferation #IAEA #safeguards #nukesky

Here's a "rubber stamp" amendment to the NRC-DOE MOU on #nuclear innovation that commits NRC to establishing "an expedited pathway to approve advanced reactor designs that have been authorized and tested by DOE." Note: this can only be legally done through rulemaking. www.nrc.gov/docs/ML2530/...

What's the matter with #Kansas? Some misguided folks want to build a Natrium fast #nuclear reactor there. kansasreflector.com/2025/11/02/h...

For background: www.sfpublicpress.org/exposed-part...

Yesterday an Unusual Event was declared at the South #Texas Project #nuclear plant at 7:11 pm CT after notification of a "credible security threat" (!) Unit 1 was operating at full power an Unit 2 was down. The event lasted over 2 hours. N.B.: this is a rare occurrence.

There is a full-blown radiological contamination incident in Indonesia apparently caused by scrap metal smelting that volatilized cesium-137 from a radiation source that should not have been there, contaminating shipments of frozen shrimp and cloves. www.kompas.id/artikel/en-p...

Get this: Oklo now has a "Pluto" fast #nuclear reactor design. Very imaginative. I wonder what type of fuel it will use? Lol www.energy.gov/articles/ene...

The Nuclear Regulatory Commission is "closed" but "critical" activities, including those outlined in Executive Order 14300, will continue. I can't find the lapse plan online, but this seems to mean that public meetings on advanced #nuclear reactors today have not been canceled. nrc.gov/pmns/mtg

This month an employee brought beer to the Davis-Besse #nuclear reactor in #Ohio, and personnel failed drug tests at Watts Bar in #Tennessee and South #Texas. If you worked at one of the "Terrible Thirteen," you might want to forget your troubles too. blog.ucs.org/edwin-lyman/...

Energoatom reports that the Zaporizhzhia #nuclear plant has lost all off-site power today for the 10th time since the Russian invasion. A precarious situation.

The July scram of the Watts Bar-2 #nuclear plant in #Tennessee was caused when water dripping through a hole in the roof short-circuited a breaker, shutting down multiple coolant pumps and the main turbine. TVA, fix the darned roof before buying SMRs. www.nrc.gov/docs/ML2525/...

Seven allegations have already been filed at the Palisades #nuclear plant in #Michigan this calendar year and the reactor hasn't even been restarted yet. What is going on there?

The Nuclear Regulatory Commission wants to slash the number of hours it spends inspecting #nuclear reactor safety. security, and emergency preparedness by 34 percent beginning January 1, 2026. There is no justification for such a major cut to its inspections. adamswebsearch2.nrc.gov/webSearch2/m...

On Saturday the Hatch-2 #nuclear reactor in #Georgia was manually scrammed at 70 percent power when both reactor recirculation pumps stopped working during a test of the main turbine control valve. The reactor was still down this morning.

Yesterday an Unusual Event was declared for nearly two hours at the Oconee-1 #nuclear reactor in #SouthCarolina when the reactor coolant system developed a leak of 26 gallons per minute during maintenance of a letdown filter.

The source of the cesium-137 that tainted the shrimp exports from Indonesia may have come from contaminated scrap metal. This makes a lot of sense and also underscores how sloppy handling of medical radiation sources can have wide-ranging impacts. www.9news.com/article/news...

This takes the word "lunacy" to a whole new level

I'm really sorry to report that my longtime colleague Dan Hirsch, founder of Committee to Bridge the Gap, has passed away. Dan was a tireless advocate for strengthening security at #nuclear power plants. www.committeetobridgethegap.org/2025/07/27/d...

On Tuesday the Susequehanna-1 #nuclear reactor in #Pennsylvania was manually scrammed at full power after the main transformer experienced a cooling loss. The reactor is still down today. Should be a warning to Amazon about the reliability of this plant to power its data center.

1/9. A House Oversight subcommittee is holding a #nuclear power hearing today. The first order of business must be to investigate how the troubling takeover of the formerly independent Nuclear Regulatory Commission by the executive branch is jeopardizing nuclear safety and security. For example:

A really creepy statement from the NRC revealing that the takeover of the agency (unfortunately, not an entirely hostile one) is complete. Reminds me of "Invasion of the Body Snatchers." Another sad day for our weakening democracy. www.nrc.gov/cdn/doc-coll...

My worst fears are being realized. www.eenews.net/articles/dog...

Yesterday the Watts Bar-2 #nuclear reactor in #Tennessee automatically scrammed at full power after a loss of secondary power caused both feedwater pumps to shut down and the turbine to trip. The reactor, which is on my "Terrible Thirteen," list, is still down this morning.

A DOGE lackey from DOE is now installed at NRC. www.epw.senate.gov/public/index...

Story on my "Terrible Thirteen" report. Sounds like Entergy didn't care for it much. www.nola.com/news/busines...

The #nuclear startup Oklo says that it expects to have its first reactor up and running by early 2028. But the reactor cannot run without fuel. And it is not going to submit an application for the fuel fabrication facility before 2026. You do the math. www.nrc.gov/docs/ML2517/...

A dire warning.

The horrible death toll in #Texas could have been reduced if Kerr Country had emergency sirens instead of relying solely on electronic alerts, which are not reliable. Food for thought for NRC and FEMA as they allow #nuclear plant emergency siren networks to be retired.

I'm very sorry to report that my old colleague Bob Alvarez passed away earlier this week. I worked with him on a paper on the hazards of wet spent fuel storage more than 20 years ago that has been widely read and cited. www.nrc.gov/docs/ML1209/... ips-dc.org/ips_author/r...

🚨 JUST IN: Iran can still build nuclear weapons without further enrichment. Only diplomacy will stop it By @ucs.org's @nucsafetyucs.bsky.social In @thebulletin.org thebulletin.org/2025/07/iran... #Iran #uranium #HEU #proliferation #nuclearweapons #nuclearrisk #IAEA #enrichment #nukesky

Former NRC chairman David Wright is yet another victim (presumably temporary) of the "Big, Beautiful Bill." www.nrc.gov/about-nrc/or...

My op-ed today at Utility Dive: www.utilitydive.com/news/trump-n...

🎯 “The industry has had a chip on its shoulder for so long that it’s afraid to be honest about what it doesn’t know, and it’s putting forth a positive message that’s not backed by science. It’s the regulator’s role to see through that." — @nucsafetyucs.bsky.social

Now the world just has to hope that Iran didn't simply relocate a portion of its HEU stockpile to a secret location.

Yesterday operators manually scrammed the troubled Grand Gulf #nuclear plant in #Mississippi, one of the Terrible Thirteen (blog.ucs.org/edwin-lyman/...) after a circulating water pump tripped and condenser vacuum degraded. The plant was only at 70% power at the time, not clear why.