Overview
Simmons City Substation, operated by South Texas Electric Cooperative, is an operational 69 kV substation in Texas, United States, supporting regional grid stability.
Simmons City Substation is an electrical substation located in Texas, United States, and is operated by South Texas Electric Cooperative. The facility operates at a voltage level of 69 kV, placing it in the medium-voltage range typical for distribution and sub-transmission networks. As a substation, it plays a critical role in stepping down voltage for local distribution or interconnecting transmission lines. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for the bulk power system. In Texas, the Electric Reliability Council of Texas (ERCOT) manages the grid, and South Texas Electric Cooperative is a member, ensuring compliance with regional reliability requirements. The 69 kV voltage level is common for sub-transmission systems that serve rural and suburban areas. Operationally, Simmons City Substation is part of the infrastructure that delivers electricity to communities in south-central Texas. Its location near the Gulf Coast region means it supports a mix of residential, agricultural, and industrial loads. The substation's role in the local grid is essential for maintaining voltage stability and ensuring reliable power supply to end-users.
Environmental context
The substation is situated in a rural area of south-central Texas, characterized by a mix of agricultural land and natural vegetation. The local environment is subject to periodic drought and heat, which can affect vegetation management around substation equipment. The facility's 69 kV voltage level indicates it serves a moderate-sized load area, with potential environmental considerations related to electromagnetic fields and land use. Standard mitigation measures include maintaining clearances and using low-impact designs to minimize ecological disruption.
Frequently asked questions
Simmons City Substation is located in Texas, United States, at coordinates 28.408888, -98.205867. It is operated by South Texas Electric Cooperative.
Simmons City Substation operates at a voltage of 69 kV, which is typical for sub-transmission and distribution substations in the United States.
The substation is operated by South Texas Electric Cooperative, a member-owned utility serving rural areas in south-central Texas.
As part of the U.S. bulk power system, the substation must comply with NERC reliability standards and FERC regulations. In Texas, it also falls under ERCOT's jurisdiction.
A 69 kV substation typically steps down transmission-level voltage for local distribution or interconnects sub-transmission lines, serving medium-sized load areas such as towns or rural cooperatives.