In a statement, officials at the Pilgrim nuclear power plant in Plymouth said it stopped operating in accordance with procedure after distribution lines that send power from the plant to the electric grid became inoperable because of the weather.
The plant said safety systems worked as designed and there was no threat to plant workers or the public.
Officials said the facility -- the only nuclear power plant in Massachusetts -- was being powered by emergency diesel generators and could tap into an offsite power source if needed.