ZURICHABB, the global technology company, has won a US$120-million order to supply the transmission system for the HVDC (high-voltage direct current) Cross-Sound Cable subsea power interconnection linking Connecticut and Long Island, New York.
The order for the 330 MW, 40-kilometer link was placed by TransÉnergie U.S. Ltd., a subsidiary of TransÉnergie, the transmission division of Hydro-Québec, Canada. The link is scheduled to begin operation by May, 2002.
Under the terms of the contract, ABB will provide a complete HVDC Light transmission system. The system is made up of high-tech extruded cables buried under the seabed, with a converter station at each end of the link. The stations convert electricity from alternating current used in the local power grids to direct current for efficient power transmission over longer distances.
The Cross-Sound Cable subsea power interconnection follows close on the heels of ABB’s two most recent HVDC Light installations. The first links Texas to Mexico at Eagle Pass. The second, called Directlink, connects the New South Wales and Queensland, Australia electricity grids, allowing power to be traded between the two states for the first time.
ABB’s HVDC Light technology uses high-power semiconductors, which when coupled with advanced cables, transmit electricity over long distances with lower losses and lower investment needs than conventional HVDC power transmission systems. It is equipped with measurement and control systems that enable power trading, making it especially suitable for deregulating and privatized power markets.
The Cross-Sound link is expected to improve the reliability of power supply in the Connecticut and New England power grids, while providing urgently needed electricity to Long Island. The HVDC Light connection is also designed to promote competition in the New York and New England electricity markets by enabling electricity to be traded among power generators and customers in both regions.
The ABB Group serves customers in power transmission and distribution; automation; oil, gas, and petrochemicals; building technologies; and in financial services. With novel IT applications, tailored software solutions, growing eBusiness and a fast-expanding knowledge and service base, ABB is building links to the new economy. The ABB Group employs about 160,000 people in more than 100 countries.