An electrical arc flash-burned the man's hand and forearm about 9:30 p.m. Sunday while he tended to a medium-voltage electrical panel, said Sarah Baumgardner, the authority's spokeswoman.

He was taken to a local hospital, transferred to the University of Virginia Medical Center for burn treatment, and discharged Monday morning, she said.

The accident was not weather-related, she added.

Baumgardner wouldn't release the man's name and didn't know how long he'll be off from work.

Crews are stationed at the plant 24 hours a day.

-- Katelyn Polantz