October 2012

The following news article originally appeared in NEI’s Nuclear Energy Overview.

The NRC has issued for public comment draft interim staff guidance for U.S. nuclear energy facility operators to evaluate their sites’ responses to reanalyzed flooding hazards that exceed levels the plants were designed to withstand.

The guidance outlines an acceptable method for reactor licensees to meet one of the requirements outlined in a March 12 request for information the agency issued as part of its response to the Fukushima accident.
Read More »

Industry/Regulatory/Political

  • A new study by the Electric Power Research Institute that examines options for minimizing the release of radioactive materials in a severe nuclear accident says that a combination of strategies would be much more effective than depending on any single measure. In particular, EPRI says that combining containment sprays or immersion of damaged fuel with a specifically designed vent that can reliably open and close at appropriate times would provide a more than 1,000-fold reduction in the amount of fission products released. Adding low-efficiency filters to vents can further reduce the release of fission product particles, although the report recommends further research to evaluate the efficacy of filter designs. EPRI acknowledges that “the best way to avoid radiological release and potential land contamination is to prevent an accident from occurring by improving and augmenting the strategies for preventing core damage,” a strategy in line with the industry’s “FLEX” approach.
    Read More »

The following news article originally appeared in NEI’s Nuclear Energy Overview.

A new study by the Electric Power Research Institute that examines options for minimizing the release of radioactive materials in a severe nuclear accident says that a combination of strategies would be more effective than any single measure.The EPRI report looked at boiling water reactors with Mark I and Mark II containment designs, similar to those involved in the 2011 Fukushima Daiichi accident. The study notes that, while the accident did not have a long-term effect on public health and safety, it did result in “widespread contamination” of surrounding areas.
Read More »
Activity ID: 1002943 Activity Name: NEI Remarketing Safety Activity Group Name: Remarketing Safety First