EDF's Gravelines 6 Nuclear Reactor in France Experiences Unplanned Outage

EDF's 900-MW Gravelines 6 nuclear reactor in northern France experienced an unplanned outage on Monday at 9:35 GMT, France's power grid RTE said on its website.

An EDF spokesman said the outage had been caused by a default on a sensor that measures the good working order of the reactor.

"We are assessing the problem before carrying out repairs," the spokesman said. He was unable to give a restart date.