August 2011

Plant Status

  • Workers at the Fukushima Daiichi nuclear energy facility achieved a major milestone this week as recirculating cooling was restored to the used fuel storage pools at the last of the four damaged reactors. Tokyo Electric Power Co. (TEPCO) activated the cooling system at the reactor 1 pool on Wednesday, marking the first time since the March 11 earthquake and tsunami that the pools at all four reactors have used recirculating cooling rather than water injection. Cooling systems for the pools were restored at reactor 2 on May 31; reactor 3, June 30; and reactor 4, July 31. The cooling systems for the pools at reactors 5 and 6 and the common pool were not damaged. TEPCO released an update to its roadmap to restoration of the facility on Aug. 10.
    Read More »

Plant Status

  • Tokyo Electric Power Co. has begun erecting the steel support for an airtight cover for reactor building 1 at the Fukushima Daiichi nuclear energy facility. The 17-story polyester fiber fabric cover is designed to shield the environment from the release of radioactive particles. TEPCO is planning similar covers for reactors 3 and 4.
    Read More »

Answer:

There are no data indicating that one nuclear reactor design is safer than another. In the United States, 69 of the 104 operating nuclear reactors are pressurized water reactors. The other 35 are boiling water reactors. Each design has multiple layers of protection (defense-in-depth) and both designs have performed safely and reliably. They both are licensed by the independent Nuclear Regulatory Commission and operated to the same levels of regulatory requirements and safety. The  accident at Three Mile Island involved a pressurized water reactor; the Fukushima nuclear energy accident involved boiling water reactors.
Read More »

Plant Status

  • Tokyo Electric Power Co. reports that the water decontamination system recycling accumulated water to cool the Fukushima Daiichi reactors stopped working Sunday after several pumps failed. TEPCO is working to reduce the volume of contaminated water in the basements of the reactor and turbine buildings, but the decontamination system continues to perform below capacity. The company is pumping the water into temporary storage tanks and has begun testing a system to reduce its volume by evaporation. TEPCO says about 21,000 tons of untreated water remains at the plant.
    Read More »

NEI has posted a new backgrounder to its website:

  • Emergency Preparedness
    Nuclear plant operators and federal regulators know that assuring public safety requires going beyond action to prevent problems; it also requires careful planning to manage unexpected events. Federal law requires that nuclear energy operators develop and exercise sophisticated emergency response plans to protect the public in any extreme scenario. Read More >>

See the main fact sheet Web page for all of NEI’s backgrounders on the Fukushima nuclear energy situation and the U.S. nuclear industry’s response.

Activity ID: 1002943 Activity Name: NEI Remarketing Safety Activity Group Name: Remarketing Safety First