Overview
Manchaca Substation is an operational electrical substation in Texas, United States, operated by Pedernales Electric Cooperative. It operates at 138 kV, serving the local grid.
Manchaca Substation is an operational electrical substation located in Texas, United States. Owned and operated by Pedernales Electric Cooperative, it plays a key role in the regional power distribution network. The substation operates at a voltage of 138 kV, which is typical for sub-transmission and distribution-level infrastructure in the United States. The facility operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which set reliability standards for the bulk power system. As a substation in the Pedernales Electric Cooperative service area, it supports the cooperative's mission to provide reliable electricity to its members in central Texas. The 138 kV voltage level indicates it serves as a critical node for distributing power from higher-voltage transmission lines to local distribution networks. As part of the Pedernales Electric Cooperative system, Manchaca Substation contributes to the electrical infrastructure serving a growing region in Texas. The cooperative is one of the largest electric cooperatives in the United States, and this substation helps ensure grid stability and power delivery to residential, commercial, and industrial customers. Its operational status and voltage level underscore its importance in maintaining reliable electricity supply in the area.
Environmental context
The substation is located in a suburban area near Austin, Texas, where urban expansion places demands on electrical infrastructure. The 138 kV voltage level and its role in distribution mean it has a moderate environmental footprint, primarily through land use and potential electromagnetic fields. The facility's operation is subject to environmental regulations under the National Environmental Policy Act (NEPA) and state-level requirements for substation siting and maintenance.
Frequently asked questions
Manchaca Substation is located in Texas, United States, near the community of Manchaca, south of Austin. Its coordinates are approximately 30.135251 N, -97.850616 W.
Manchaca Substation operates at a voltage of 138 kV (138,000 volts), which is a common voltage for sub-transmission and distribution substations in the United States.
Manchaca Substation is operated by Pedernales Electric Cooperative, a member-owned electric utility serving central Texas.
Substations in the United States must comply with NERC reliability standards for grid stability and FERC regulations for interstate electricity transmission. Additionally, substations follow IEEE and ANSI standards for equipment and safety.
A 138 kV substation steps down high-voltage transmission power (typically 138 kV) to lower voltages for local distribution, enabling safe delivery to homes and businesses. It also provides switching and protection functions to maintain grid reliability.