NRC Gives OK for Restart of Damaged North Anna Nuclear Plant
In what feels like a Friday news dump that goes to 11, the US Nuclear Regulatory Commission has given its approval to restart Dominion Virginia Power’s North Anna nuclear power facility. The decision came late in the day on a holiday–Veterans Day, 11/11/11.
As previously noted, the reactors at North Anna scrammed during the Mineral, VA earthquake of August 23. It was later shown the power plant sustained shaking well beyond its design criteria. Several spent fuel storage casks moved one to four inches, and other storage containers showed what was termed cosmetic damage (namely, cracks), but plant operators contend that the nuclear reactors sustained no “functional” damage.
What constitutes “functional” now remains to be seen. The fact is there was no official protocol–no “checklist”–for evaluating a nuclear facility after it experienced a seismic event such as this. The NRC’s inspectors have essentially been inventing that inspection regime on the fly as they surveyed the North Anna plant. Dominion has been pressing for permission to restart since shortly after the quake.