Overview
Merett Substation is an operational electrical substation in Texas, United States, operated by South Texas Electric Cooperative. It operates at 138 kV, supporting regional grid stability.
Merett Substation is an operational electrical substation located in Texas, United States, and is owned and operated by South Texas Electric Cooperative. The facility operates at a voltage level of 138 kV, placing it within the typical range for sub-transmission and distribution substations that serve as critical nodes in the regional power grid. As a substation operating under the jurisdiction of the United States, Merett Substation is subject to NERC reliability standards and FERC regulations for transmission-level assets. The 138 kV voltage level indicates its role in stepping down power from higher transmission voltages for local distribution, a common configuration in rural cooperative networks. South Texas Electric Cooperative is a generation and transmission cooperative serving member distribution cooperatives in South Texas. The substation's location in Hidalgo County, near the Rio Grande Valley, positions it within a region experiencing population growth and agricultural activity. Its operational status ensures continued reliability for the cooperative's member utilities, supporting both residential and commercial electricity demand in the area. The facility contributes to grid resilience by providing voltage regulation and switching capabilities.
Environmental context
The substation is situated in a rural to suburban area of South Texas, characterized by hot summers and mild winters. The local environment includes agricultural lands and expanding residential developments. Substations like Merett are typically designed with minimal environmental footprint, using oil-filled transformers that require containment measures to prevent soil and water contamination. The 138 kV voltage level suggests moderate electromagnetic field exposure, which is managed through standard setback distances and shielding practices.
Frequently asked questions
Merett Substation is located in Texas, United States, near the coordinates 26.270689, -98.179111, in Hidalgo County.
Merett Substation operates at a voltage of 138 kV, which is typical for sub-transmission and distribution substations in the United States.
Merett Substation is owned and operated by South Texas Electric Cooperative, a generation and transmission cooperative serving member cooperatives in South Texas.
As a substation in the United States, Merett Substation must comply with NERC reliability standards and FERC regulations for transmission-level assets, ensuring grid stability and security.
A 138 kV substation typically steps down higher transmission voltages (e.g., 345 kV) to distribution levels (e.g., 69 kV or lower), serving as a critical node for local power distribution and grid reliability.