Edwin Lyman
@NucSafetyUCS
I'm the Director of Nuclear Power Safety at the Union of Concerned Scientists in Washington, DC. I work to make nuclear power safer and more secure.
They are still a long way from actually approving operation of the reactor.
Today our staff signs licensing actions that bring Palisades closer to becoming the first permanently shut down reactor to resume operations. Once Holtec implements these changes, Palisades can transition to operational status. More at: nrc.gov/cdn/doc-collec… #NRCForward
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.
Elevated tritium levels have been detected in a groundwater monitoring well at the North Anna #nuclear plant in #Virginia. The origin of the leak is being investigated.
This sound decision has implications for the illegal firing of @NRCgov commissioner Chris Hanson.
Just now, the court agreed that Trump’s firing of the two FTC commissioners was indeed illegal.
Clearing up some misinformation.
☢️ Ukraine's Energy Ministry comments on smoke at Zaporizhzhia Nuclear Power Plant pravda.com.ua/eng/news/2025/…
The Prairie Island-1 #nuclear reactor in #Minnesota automatically scrammed at full power yesterday during performance of an electrical relay test. The reactor is still down this morning.
Really important post on cuts to the State Department's #nuclear nonproliferation and disarmament work. substack.com/home/post/p-16…
Consider the takeover of the agency (unfortunately, not an entirely hostile one) complete. Another sad day for our weakening democracy.
#NRCNews: Last week, our Commissioners released a joint statement about their commitment to working collegially to lead the agency.
My worst fears are being realized. eenews.net/articles/doge-…
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.
