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Transmission line will connect New York City to New Jersey, boosting power supply

SUBNET Solutions Inc | Sunday, May 29, 2011

New York City is scheduled to get a boost to its power supply over the coming years as a massive transmission line will be constructed, according to a recently published report. The massive power outage that struck the city in 2003 rattled city officials, and Hudson Transmission Partners has contracted Siemens Energy to build the massive transmission line.

The German engineering giant will install a turnkey high-voltage direct-current (HVDC) back-to-back link that when completed will connect the power supply networks of New Jersey and the Empire State. The projects designers forecast the transmission line to increase Manhattan's power supply by an additional 660 megawatts of controlled electric power.

Aside from connecting the two states' power supplies, the high-voltage cable link will also enable state utilities to more effectively monitor and control the flow of electricity. In fact, with its fast control function, the HVDC technology will also contribute to the further stabilization of the connected power supply systems, which industry watchers assert is an essential step in ensuring prompt grid disturbance fixes.

Siemens power transmission division chief executive Udo Niehage affirmed the investment in the transmission line will help the state to develop and support the smart grid.

"Together with our consortium partner Prysmian, which will be handling the cable link, we will create another power highway to meet New York's growing power demand," Niehage said in a statement.

Moreover, The Wall Street Journal reports that work on the transmission line is expected to be completed sometime in 2013. The station with the HDVC back-to-back link will be built in Ridgefield, New Jersey, where it will be connected with the Garden State's 230-kilovolt power supply network through a substation.

New York City's power supply network will be fed the additional power supply by a 345-kilovolt cable that will span just under 7.5 miles underneath the Hudson River. The infeed point is located on 49th street in Manhattan.

In 2007, Siemens completed a similar transmission line that currently transmits more than 660 megawatts of electrical energy between New Jersey and Long Island.

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