Siemens Energy has secured a contract from Hudson Transmission Partners to install a turnkey high-voltage direct-current (HVDC) link to connect the power supply networks of New Jersey and New York.

This contract is part of a larger contract worth approximately $400m awarded to a consortium of Prysmian Cables & Systems and Siemens for the underground and submarine power link.

Siemens will provide the open- and closed-loop controls for the HVDC system, the thyristor valves, eight converter transformers and the AC filters, as well as operation and maintenance services for five years.

Prysmian will supply and install a 345kV HVAC land and submarine transmission line to transfer 660MW of electricity from the transmission grid in Ridgefield, New Jersey to New York City.

Siemens will build a station with the HVDC back-to-back link in Ridgefield, where it will be connected via a substation with New Jersey’s 230kV power supply network.

The power link project is expected to be completed during the third quarter of 2013.