Report: 6 Million Without Power Due to Sandy, 3 Nuclear Power Plants Disabled

Power has come back for nearly 2 million East Coast customers, but 6 million remain in the dark.

A tree leans against a house Tuesday, Oct. 30, 2012, in the Bay Ridge neighborhood in the Brooklyn borough of New York, while another tree lies on a taxi with a shattered rear window in the aftermath of superstorm Sandy.

A tree leans against a house Tuesday in the Bay Ridge neighborhood in the Brooklyn borough of New York, while another tree lies on a taxi with a shattered rear window in the aftermath of superstorm Sandy.

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Power has been restored to nearly 2 million people affected by Hurricane Sandy, but more than 6 million remain powerless across 16 states, according to the latest report by the Department of Energy.

Because of the storm, three nuclear power plants have been shut down and two are running at reduced capacity with no official time estimates for coming back online, according to the report, issued at 10 a.m. EDT Wednesday.

According to the report, one of the reactors at the Salem Nuclear Power Plant in southwestern New Jersey had to be manually shut down Tuesday because Sandy disabled four of the station's six water pumps. According to the company that operates the plant, the reactor is stable. A reactor at Indian Point in New York remains offline due to electric grid issues and a reactor at Nine Mile Point in New York is offline due to a generator load reject that is currently under investigation.

[RELATED: Was Hurricane Sandy Caused by Global Warming?]

A reactor at Millstone Nuclear Power Plant in Waterford, Conn., is operating at 80 percent capacity due to potential problems with its water system; a reactor at Limerick Nuclear Power Plant, 36 miles northeast of Philadelphia, is operating at 30 percent of its full capacity.

New Jersey, New York, and Connecticut remain the hardest hit by Sandy's power outages: More than 2 million customers in New Jersey (51 percent of all customers in the state), 1.9 million customers in New York (21 percent), 487,000 in Connecticut (24 percent), and 852,000 in Pennsylvania (13 percent) remain without power. More than 100,000 people are without power in each of Maryland, Massachusetts, Michigan, Ohio, and West Virginia, and customers as far west as Kentucky have experienced outages.

Though power is consistently coming back online for many customers, electric companies have warned that power may not come back for many affected in New Jersey, New York, and Pennsylvania for up to 10 days; along the Jersey Shore, electric companies say they aren't ready to make estimates for service renewal "due to the magnitude of the storm" and the "extensive damage" sustained.

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Jason Koebler is a science and technology reporter for U.S. News & World Report. You can follow him on Twitter or reach him at jkoebler@usnews.com.