July 2011

Plant Status

  • Tokyo Electric Power Co. is continuing preparations to stabilize Fukushima Daiichi’s reactor 3 primary containment vessel. The company is using a robot-mounted camera to check whether a penetration joint is suitable for nitrogen injection that will help stabilize conditions inside the reactor vessel. TEPCO is also checking radiation levels, which have decreased by up to half after installing steel plates on the floor of the working area inside the reactor building. However, radiation levels in the building are still high—up to 5 rem per hour. Read More »

Plant Status

  • Work is continuing to reduce radiation levels at Fukushima Daiichi’s reactor 3 building. Tokyo Electric Power Co. has used robots to vacuum radioactive debris and place steel sheets on the floor to decrease the potential for radiation exposure. Pending a reduction in radiation levels,  workers are scheduled to enter the building housing the reactor on July 17 to begin installing new piping to inject nitrogen gas into the reactor containment vessel. The inert gas will reduce the possibility of a hydrogen explosion in the containment building. The company already is injecting nitrogen into the containments for reactors 1 and 2. Read More »


NEI’s fact sheet, “U.S. Nuclear Power Plants Reconfirming Safety, Response Programs in Light of Japan Situation,” describes the vital modifications and upgrades that have been made to U.S. boiling water reactors with Mark I containment systems. It also gives a detailed analysis of the steps the U.S. nuclear energy industry is taking to ensure safety, including federal regulation, plant modification and upgrades, enhanced emergency readiness and response, and severe accident management.

(Click graphic to enlarge.)


Learn more about nuclear energy and related topics in NEI’s “Ask an Expert” section.

The Nuclear Energy Institute last week criticized The Associated Press for selective and misleading reporting in a series of articles on U.S. nuclear power plant safety. The coverage has factual errors, fails to cite relevant reports on safety that contradict the reporting, and raises questions about historic operating issues while ignoring more recent evidence of improved performance in areas that it examines.

NEI has compiled key facts on nuclear plant safety that rebut the claims in the recent articles by The Associated Press:

  • Part 1: “U.S. Nuke Regulators Weaken Safety Rules,” June 20, 2011
  • Part 2: “U.S. Nuke Sites Have Had Tritium Leaks, Often Into Groundwater,” June 21, 2011
  • Part 3: “Populations Around U.S. Nuke Plants Soar,” June 23, 2011
  • Part 4: “NRC and Industry Rewrite Nuke History,” June 24, 2011


Plant Status

  • Tokyo Electric Power Co. (TEPCO) resumed decontaminating water at the Fukushima Daiichi nuclear power plant after fixing a software flaw that caused an automatic shutdown of the decontamination system. After a short investigation identified the flaw, the problem was corrected and decontamination resumed. The decontaminated water is being reused to cool reactors at the facility.
    Read More »
Activity ID: 1002943 Activity Name: NEI Remarketing Safety Activity Group Name: Remarketing Safety First