Power could be shut off for up to three days if it has to be cut off: Con Ed

Electricity to lower Manhattan — including Wall St. and the heart of the nation’s financial industry — could be turned off by Sunday morning and may take three days to restore, Con Edison officials revealed.

All buildings south of the Brooklyn Bridge and more than 6,500 customers could lose power if the streets in lower Manhattan flood due to Hurricane Irene's driving rains and powerful storm surge.

"Salt water and electricity do not mix well," said John Miksad, a senior vice president at Con Ed, adding that the power would not be turned off preemptively.

"There is certainly sensitivity to that with these important areas."

The New York Stock Exchange and other exchanges have generators to produce their own power, Miksad said. Other neighborhoods may also suffer outages due to flooding or downed trees, officials warned.