Seven construction firms on the city's caution list worked on the Atlantic Yards project.
Many said they can't afford to pay for repairs to get power restored in their homes.
The worker suffered second-degree burns in the electrical flash at 55-30 46th St., sources said.
Residents of Knickerbocker Village are considering a rent strike after two weeks in the dark and cold.
55,000 New Yorkers are still in the dark after Hurricane Sandy and a Nor'easter tore through the region.
The power for a Reade Street building was shut down by Con Edison after the noon explosion.
Another 80,000 suffered water damage in the hurricane's floods, Bloomberg said.
The storm, compounded by Hurricane Sandy, has left some 23,000 people without power in the borough.
Governor Andrew Cuomo slammed the city's electricity suppliers for their "lack of performance."
Con Ed asks customers not to use large appliances like washers and dryers as power restoration continues.
About 460,000 ConEd customers were still without power as of Friday afternoon.
Customers in Lower Manhattan, however, were still waiting for electricity Friday morning.
Con Edison will restore power to some buildings south of the Brooklyn Bridge that are no longer flooded.
Power is slowly starting to come back across New York City.
As NYC begins its recovery from Hurricane Sandy, DNAinfo is collecting the storm's most arresting images.
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