The media is reporting that the Plymouth Nuclear Power Plant has been
shut down. Both the main transmission line and the back up transmission
line that carries the output of the plant have been damaged or lost due
to the storm. Plant is now running on diesel backup power for it's
internal electrical requirements.

I've talked to my neighbor in the past about situations like this.
He's an engineer who works at the plant. The problem is that when you
shut down suddenly like this there's no place for the energy that is
still being generated to be absorbed or used. A nuke plant doesn't just
"shut off". It still produces massive amounts of energy as it cools down.

One good thing is that it was only operating at 51 percent of it's
capacity when the transmission lines were lost.