Round Rock Westinghouse Substation - 138 kV Transmission Substation in Round Rock, Texas

Round Rock Westinghouse Substation is an electrical substation located in Round Rock, Texas, United States. Owned and operated by Oncor, the facility operates at a voltage of 138 kV, classifying it as a transmission-level substation that supports the local power distribution network. Operating under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), the substation adheres to mandatory reliability standards. Oncor, as a major transmission and distribution utility in Texas, ensures the substation meets grid stability requirements and integrates with the Electric Reliability Council of Texas (ERCOT) market. The substation's location in the growing Austin-Round Rock metropolitan area underscores its importance in meeting increasing electricity demand. As part of Oncor's infrastructure, it contributes to reliable power delivery for residential, commercial, and industrial customers, supporting the region's economic development.

The substation is situated in a rapidly urbanizing area of Central Texas, where land use transitions from rural to suburban. Its operation involves electromagnetic fields and potential impacts on local wildlife, though standard mitigation measures are employed. The facility's design and maintenance follow environmental guidelines to minimize ecological disruption.