Regulators Confirm SCE Was Forthcoming in San Onofre Investigation

The Nuclear Regulatory Commission has found that Southern California Edison did not withhold information during an agency investigation into the premature wear of steam generators at the San Onofre nuclear plant.

San Onofre nuclear plant. Source: SCEAn earlier NRC investigation cited the plant for inadequate design control measures while placing most of the blame for the wear on flawed modelling by Mitsubishi Heavy Industries. SCE decided to decommission both units at the plant last year rather than repair the equipment.

In a letter to SCE made public Tuesday and reported by the San Diego Union-Tribune, the NRC said another investigation did not substantiate subsequent claims that SCE and its employees willfully provided incomplete information to NRC inspectors. The agency has closed that investigation.

Meanwhile, SCE continues to pursue damages from MHI related to the steam generators. And the California Public Utilities Commission is considering a settlement dividing the costs of the steam generators and the outages they caused between ratepayers and utility shareholders.

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