Switzerland, Zurich: As a major renewable energy transmission project is rolled out across Texas, station service voltage transformers from ABB are helping deliver wind power from remote locations.
The Competitive Renewable Energy Zone (CREZ) project is now connecting the wind energy generated at remote wind farm locations with some of the most populated areas in the state of Texas, US. The Public Utilities Commission in Texas initiated CREZ in 2008 with the aim of transmitting around 18,500 MW of wind power from West Texas and the Texas Panhandle to areas such as Austin, Dallas-Fort Worth and San Antonio further east.
Two important Texas utilities with CREZ subprojects turned to ABB to develop the station service voltage transformer. This is a single-unit solution that provides reliable power from the high voltage transmission line to any required low voltage. Integrated inside the substation, it gives the utility full control of the energy supply in a limited space and directly from the adjoining high voltage transmission grid.
This solution is now in service with over 30 362 kV units having been delivered and installed in Texas. Over 900 miles of distribution lines – representing around $30 million in savings – could be eliminated from the project due to sourcing power right from the transmission line.