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Hudson Transmission Partners LLC (HTP) says its 660 MW underground/underwater electric transmission project running between Ridgefield, N.J., and Manhattan has begun delivering power to customers in New York City.

The high-voltage direct current (HVDC) project's route is about 7.5 miles, with a cable bundle buried under the Hudson River for about 3.5 miles and underground for approximately four miles, starting in Ridgefield.  The line, which connects to the Con Edison system at the West 49th St. substation in Manhattan, is capable of providing about 5% of New York City's peak demand.

HTP's parent company, PowerBridge, was also the developer of the 660 MW Neptune project, which extends 65 miles between New Jersey and Long Island. That project was completed in June 2007.

"Like Neptune, the Hudson project shows how this type of technology can bring reliable electric power to densely populated areas in a cost-effective, non-controversial,and environmentally friendly way," says Edward M. Stern, president and CEO of PowerBridge.

The Hudson project began construction in May 2011 at a cost of approximately $850 million. It was completed six weeks ahead of schedule.

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