nuclear-news

South Carolina nuclear plant’s cracked pipes get downgraded warning from officials

Federal regulators have lessened the severity of their warning about cracks discovered in a backup emergency fuel line at a South Carolina nuclear plant northwest of the state capital

VOA News, By The Associated Press, December 30, 2023

JENKINSVILLE, S.C. — Federal regulators have lessened the severity of their warning about cracks discovered in a backup emergency fuel line at a South Carolina nuclear plant northwest of the state capital.

The U.S. Nuclear Regulatory Commission downgraded its preliminary “yellow” warning for V.C. Summer Nuclear Station issued this October to a final “white” one after owner and operator Dominion Energy showed its generator could still run for six hours in an emergency, the agency announced Thursday.

That demonstration calmed officials’ concerns that Dominion Energy’s failure to maintain cracks and leaks — discovered at least five times over the past two decades — had neutralized the plant’s ability to cool down its reactors if electricity failed.

The new rating means that the generator is underperforming but still meeting its key targets.

“While not indicative of immediate risk, this finding underscores the need for continuous vigilance and improvement in the plant’s corrective action process,” NRC Region II Administrator Laura Dudes said in a statement………………………………..

Officials plan to complete another inspection to see if Dominion Energy fixes the ongoing issues. In a statement to The Associated Press on Friday, the company said it immediately replaced the piping and will install “more resilient piping” early next year………………………………………

The State Newspaper reported that a leader at a watchdog group said the length of the problem warranted the more serious finding. The risk is that fires could break out, according to Edwin Lyman, the director of nuclear power safety at the Union of Concerned Scientists. The changes from Dominion Energy seem to be “pencil-sharpening exercises that make a bad situation look better on paper,” Lyman told The State.  https://abcnews.go.com/US/wireStory/south-carolina-nuclear-plants-cracked-pipes-downgraded-warning-105988939#:~:text=The%20U.S.%20Nuclear%20Regulatory%20Commission,emergency%2C%20the%20agency%20announced%20Thursday.

December 30, 2023 - Posted by Christina Macpherson | safety, USA