Connecting to the grid

Here's where all the electricity goes. Nine tubes that have cables inside them (surrounded by an insulator gas) send electricity at 345,000 volts to the grid. They connect to three transmission lines at this interconnection point, two of which go to points in New Hampshire and one in Massachusetts.

There was once an incident about eight years ago where ice caked up on these transmission line connections, essentially causing a short that led to the computer turning the generator off. The plant itself needs a significant amount of power to operate, so it has diesel generators with enough fuel for a week.