Edwin Lyman(@NucSafetyUCS) 's Twitter Profileg
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.

ID:1121774093739667458

calendar_today26-04-2019 13:52:40

5,8K Tweets

3,8K Followers

76 Following

Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

Latest IAEA - International Atomic Energy Agency ⚛️ update on the situation at the plant. Over 100 rounds of rifle fire near the plant this week and mysterious reports of drones near the training center.

iaea.org/newscenter/pre…

account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

Another unbelievably bad NRC inspection report for the Turkey Point plant in . A violation was issued for FP&L's failure to conduct required testing of ancient DC circuit breakers, despite knowing about the problem since 2005.
nrc.gov/docs/ML2412/ML…

Another unbelievably bad @NRCgov inspection report for the Turkey Point #nuclear plant in #Florida. A violation was issued for FP&L's failure to conduct required testing of ancient DC circuit breakers, despite knowing about the problem since 2005. nrc.gov/docs/ML2412/ML…
account_circle
Nickolas Roth(@Nickolas_Roth) 's Twitter Profile Photo

'A floating reactor would be vulnerable to a malicious attack or sabotage from underwater assailants, or to the destructive forces of a tsunami or extreme storm, said Edwin Lyman. The Pacific Basin is the most tsunami-prone region, officials said.' washingtonpost.com/national-secur…

account_circle
Mark Z. Jacobson(@mzjacobson) 's Twitter Profile Photo

And the streak rolls into May.

For the 18th day in a row and 47th of past 55, California supply exceeded 100% of demand, for 8.67 h on May 1, peaking at 130.6%.

Over the 55 days, WWS exceeded demand 4.1 h/day on avg and the 24-h avg WWS supply has been 62.3%

And the streak rolls into May. For the 18th day in a row and 47th of past 55, California #WindWaterSolar supply exceeded 100% of demand, for 8.67 h on May 1, peaking at 130.6%. Over the 55 days, WWS exceeded demand 4.1 h/day on avg and the 24-h avg WWS supply has been 62.3%
account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

The NRC has issued a violation to Holtec International for a security problem at the decommissioning Indian Point plant near . Presumably this involves a failure to adequately protect the dry cask spent fuel storage area.

nrc.gov/docs/ML2412/ML…

The @NRCgov has issued a violation to @holtecintl for a security problem at the decommissioning Indian Point #nuclear plant near #NewYorkCity. Presumably this involves a failure to adequately protect the dry cask spent #nuclear fuel storage area. nrc.gov/docs/ML2412/ML…
account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

The NRC has reported 11 'abnormal occurrences' involving materials in FY 2023, including 3 thefts or diversions of Category 2 radioactive sources (all recovered). nrc.gov/docs/ML2400/ML…

account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

Of course, not really an import 'ban' yet. Better than nothing, but somehow I think the industry here will find a way to wriggle out of it. And it wouldn't have happened without the sweetener of $2.7 billion in subsidies for the domestic uranium industry.

account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

When you get sick and tired of all the power misinformation circulating out there, see my latest blog: blog.ucsusa.org/edwin-lyman/fi…

account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

Watching the NRC ACRS meeting on the subsequent license renewal application for the Monticello plant in . Xcel said that the plume of tritium leaking from the aging plant got close to the Mississippi River at one point but they were able to 'pull it back.'

account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

The NRC has found two security violations at the Palo Verde plant in associated with failures to self-identify problems and to provide adequate resources. nrc.gov/docs/ML2411/ML…

The @NRCgov has found two security violations at the Palo Verde #nuclear plant in #Arizona associated with failures to self-identify problems and to provide adequate resources. nrc.gov/docs/ML2411/ML…
account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

The Cooper plant in reports that an unspecified 'degradation of a safeguards system' took place on Friday as an EF-3 tornado came within tens of miles of the plant. All systems returned to normal subsequently.

The Cooper #nuclear plant in #Nebraska reports that an unspecified 'degradation of a safeguards system' took place on Friday as an EF-3 tornado came within tens of miles of the plant. All systems returned to normal subsequently.
account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

I would be remiss if I didn't take note of today's anniversary of the disaster.

Don't forget: The TerraPower reactor destined for will have a positive void coefficient, just like Chernobyl. Not a safe design.

account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

On Wednesday night the Browns Ferry-1 reactor in automatically scrammed at full power for an unknown reason. Emergency core cooling was actuated after reactor water level decreased. The reactor is still down this morning.

On Wednesday night the Browns Ferry-1 #nuclear reactor in #Alabama automatically scrammed at full power for an unknown reason. Emergency core cooling was actuated after reactor water level decreased. The reactor is still down this morning.
account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

The NRC has been notified by the Global Nuclear Fuel company in that defective fuel assemblies that it has produced are currently being used at 7 plants around the country. The LaSalle plant in had five fuel assembly spacers out of position.

account_circle
Edwin Lyman(@NucSafetyUCS) 's Twitter Profile Photo

Leave it to NRC commissioner Annie Caputo to complain at a briefing today that the staff are treating the buildings that will house new fuel facilities as 'items relied on for safety' instead of ordinary industrial buildings.

account_circle