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Siemens starts work on HVDC intertie for Xcel Energy

21 August 2003 – Siemens Power Transmission & Distribution, Inc, announced Wednesday that they and their partner, Beta Engineering, have begun construction under a contract from Public Service Company of Colorado (PSCO), Denver, CO, for a High Voltage DC (HVDC) back to back converter.

In February of 2003 PSCO, a subsidiary of Xcel Energy Inc., Minneapolis, MN, awarded the contract to the Siemens/Beta consortium for the design, procurement, construction and commissioning of the HVDC Converter tie to be located in Lamar, Colorado. The tie will connect Xcel Energy’s Southwestern Public Service Company (SPS) system in the eastern interconnection with its PSCO system in the western interconnection, and allow 210 MW of power transfer capability in each direction.

The HVDC intertie will begin commercial operation by the end of 2004.