Overview
Groesbeck Main Substation is an operational electrical substation in Groesbeck, Texas, owned and operated by Oncor. It handles voltages of 138 kV, 25 kV, and 12.5 kV, serving the local grid.
Groesbeck Main Substation is an electrical substation located in Groesbeck, Texas, United States. Owned and operated by Oncor, a major transmission and distribution utility in Texas, the facility is operational and plays a key role in the regional power grid. The substation handles multiple voltage levels, including 138 kV for transmission and 25 kV and 12.5 kV for distribution, indicating its function as a step-down substation serving local communities. As part of the U.S. electrical infrastructure, this substation operates under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) for wholesale electricity markets and the North American Electric Reliability Corporation (NERC) for reliability standards. Oncor, as a transmission service provider, must comply with NERC's Critical Infrastructure Protection (CIP) standards and Texas's regional grid reliability requirements. The substation's voltage levels and equipment are typical for medium-scale substations in rural and suburban areas. The substation's location in Limestone County supports the electrical needs of Groesbeck and surrounding areas. It contributes to grid stability and reliability by stepping down transmission voltages to distribution levels for residential, commercial, and industrial customers. The facility's operational status ensures continued service to the community, and its integration with Oncor's network enhances the resilience of the regional power system.
Environmental context
The substation is situated in a rural area of central Texas, characterized by agricultural land and small communities. The local environment includes open fields and scattered woodlands, with a climate that experiences hot summers and mild winters. Electrical infrastructure in such settings typically requires minimal environmental footprint, though vegetation management and stormwater runoff are considerations. The substation's design and operation follow standard practices to mitigate impacts on local ecosystems.
Frequently asked questions
Groesbeck Main Substation is located in Groesbeck, Texas, United States, at coordinates 31.521189, -96.541021.
The substation handles voltages of 138 kV, 25 kV, and 12.5 kV, serving both transmission and distribution functions.
The substation is owned and operated by Oncor, a major electric transmission and distribution utility in Texas.
In the United States, substations must comply with NERC reliability standards and FERC regulations. Oncor also adheres to Texas regional grid requirements and NERC CIP standards for cybersecurity.
Substations transform voltage levels for efficient transmission and distribution, isolate faults, and enable grid monitoring. They are critical for reliable electricity delivery from generation to consumers.