Round Rock Northeast Substation - Oncor Electrical Substation in Round Rock, Texas

Round Rock Northeast Substation is an electrical substation located in Round Rock, Texas, United States. Owned and operated by Oncor, a major transmission and distribution utility in Texas, the facility plays a key role in the regional power grid. The substation operates at voltage levels of 138 kV and 25 kV, indicating its function in both high-voltage transmission and lower-voltage distribution. As part of Oncor's network, this substation is subject to regulatory oversight by the Public Utility Commission of Texas (PUCT) and must comply with NERC reliability standards for grid stability. The 138 kV level classifies it as a transmission-level asset, while the 25 kV side serves local distribution. The facility is located in a growing suburban area near Austin, reflecting the increasing demand for electrical infrastructure in rapidly developing regions. The substation's operational status ensures reliable power supply to residential, commercial, and industrial customers in Round Rock and surrounding areas. Its integration into Oncor's system supports grid resilience and load management, contributing to the overall stability of the Texas Interconnection, which operates independently from the Eastern and Western Interconnections.

The substation is situated in a suburban environment in Round Rock, Texas, an area experiencing rapid population growth. The local electrical infrastructure must balance increasing demand with environmental considerations such as land use and electromagnetic field management. The facility's location near residential zones requires adherence to setback regulations and noise mitigation practices common in urban substations.