Hurricane Irene knocked out electrical power to more than 1.2 million residents in Virginia and many are still in the dark.
Virginia' Dominion Power has restored electricity to about two-thirds of them.
More than 6,000 employees are working around the clock, including 2,000 workers from utilities as far away as Alabama, Georgia, Indiana, Ohio, and Michigan.
"By Friday at the end of the day, we'll have between 90 to 95 percent of all of our customers that were affected by this storm back on," Dominion Power Vice President Rodney Blevins said.
Some wonder if that goal will be met.
The Richmond Times-Dispatch reported in order to make its Friday goal, Dominion would need to restore an average of nearly 60,000 customers a day over the next three days -- almost twice the number of daily restorations it has averaged.
After doing the math, the newspaper reported it may well be into Monday before things return to normal for the utility's customers.
This is second largest restoration effort in the utility company's history -- right behind Hurricane Isabel in 2003, which affected 1.8 million customers. Complete restoration took two weeks.