The slow but steady march to rebuild the World Trade Center has reached another milestone.
Workers switched on a massive power system at the New York City site on Tuesday. The system eventually will provide electricity to the trade center's signature skyscraper, a transit hub and the Sept. 11 memorial and museum.
The Port Authority of New York and New Jersey owns the lower Manhattan trade center site. It says the system of electrical feeders will supply 100 megawatts to the site.
That's enough juice to power 64,000 typical New York City apartments.
The unfinished One World Trade Center is one of the city's tallest structures. If construction continues at its current pace, this spring it'll pass the Empire State Building, which is about 1,250 feet tall excluding its antenna spire.