Overview
Pegasus South Substation is an operational electrical substation in Texas, United States, operated by Oncor. It operates at 138 kV, serving as a key node in the regional transmission grid.
Pegasus South Substation is an operational electrical substation located in Texas, United States. Owned and operated by Oncor, a major transmission and distribution utility in the state, the facility plays a role in the regional power grid. The substation operates at a voltage of 138 kV, which is a common transmission-level voltage in the United States, typically used for sub-transmission and distribution to industrial and large commercial customers. As part of the U.S. electrical infrastructure, Pegasus South Substation operates under the regulatory framework established by the Federal Energy Regulatory Commission (FERC) and the North American Electric Reliability Corporation (NERC). These bodies set reliability standards for the bulk power system, ensuring grid stability and security. The substation's equipment likely includes circuit breakers, transformers, and switchgear compliant with standards such as IEEE C37 for high-voltage equipment. The substation is situated in a region characterized by oil and gas production, as well as wind energy generation. Its role in the grid is critical for maintaining reliable electricity supply to local communities and industries. The facility's operational status and voltage level indicate it is an integral part of the transmission network, supporting both local distribution and interconnection with larger regional systems.
Environmental context
The substation is located in a semi-arid region of Texas with significant oil and gas activity, as well as growing wind energy capacity. The 138 kV voltage level suggests it serves as a sub-transmission node, connecting local distribution to the bulk power system. The facility's design and operation must consider environmental factors such as heat dissipation and wildlife protection, typical for substations in open rural areas.
Frequently asked questions
Pegasus South Substation is located in Texas, United States, at coordinates 31.662889, -102.225064. It is operated by Oncor, a major electric utility in the state.
Pegasus South Substation operates at 138 kV, a common sub-transmission voltage level in the United States, used to distribute power from the high-voltage transmission grid to local distribution networks.
Pegasus South Substation is operated by Oncor, a regulated electric transmission and distribution utility serving much of Texas. Oncor is responsible for maintaining and operating the substation as part of its grid.
Substations in the United States must comply with NERC reliability standards for the bulk power system and FERC regulations for transmission assets. Equipment often follows IEEE and ANSI standards, such as IEEE C37 for switchgear.
A 138 kV substation typically serves as a sub-transmission node, stepping down voltage from higher transmission levels (e.g., 345 kV) to distribution levels (e.g., 69 kV or lower). It helps deliver power to industrial, commercial, and residential customers.