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Nuclear Energy

Post-Fukushima Activities

Supporting modification of U.S. safety requirements subsequent to the accident at the Fukushima nuclear power plant

Post-Irradiation Examination

This satellite photo shows the extent of destruction of nuclear reactor units at the Fukushima Nuclear Power Station following the March 2011 earthquake and tsunami and the subsequent hydrogen explosions. Photo credit: DigitalGlobe

After the accident in Fukushima, the Nuclear Regulatory Commission (NRC) initiated a program to establish "lessons learned" for the U.S. fleet.

PNNL has been playing a key role in supporting the NRC with activities including

  • Providing surface water hydrology expertise
  • Reviewing licensee reactor site flooding walk-downs and assessments under 10 CFR 50.54(f)
  • Developing methods for probabilistic flooding hazard assessments
  • Modeling human factors for operators in natural hazards environments

In addition to supporting the U.S. response to Fukushima, we have also been working with Japanese organizations in clean-up and decommissioning, with an emphasis on risk-informing the priorities of activities.

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