Overview
McElroy Substation is an operational electrical substation in Texas, United States, owned and operated by American Electric Power. It operates at a voltage of 69 kV, serving as a key node in the regional transmission grid.
McElroy Substation is an operational electrical substation located in Texas, United States. Owned and operated by American Electric Power, the facility plays a role in the regional transmission network, stepping down voltage for local distribution. The substation operates at 69 kV, a common sub-transmission voltage level in the US, indicating it serves as an intermediary between high-voltage transmission lines and lower-voltage distribution circuits. As part of the US electrical infrastructure, McElroy Substation operates under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) for wholesale electricity markets and reliability standards set by the North American Electric Reliability Corporation (NERC). The facility likely adheres to NERC's Critical Infrastructure Protection (CIP) standards for cybersecurity and physical security, given its role in grid stability. American Electric Power, one of the largest electric utilities in the US, maintains a portfolio of substations across multiple states, with this facility supporting the Texas interconnection. The substation's location in Texas places it within the Electric Reliability Council of Texas (ERCOT) region, which manages the state's power grid. As a 69 kV substation, it contributes to the reliability of local power supply, serving residential, commercial, and industrial customers in the area. Its operational status ensures continued support for grid stability and energy distribution in the region.
Environmental context
The substation is situated in a semi-arid region of West Texas, characterized by low rainfall and high evaporation rates. The local environment includes grasslands and scrubland, with limited surface water resources. Electrical infrastructure in such areas must consider thermal management due to high ambient temperatures, which can affect transformer efficiency and lifespan. The facility's location away from densely populated areas reduces direct environmental impact, but its role in supporting oil and gas operations in the Permian Basin may indirectly contribute to regional energy demands.
Frequently asked questions
McElroy Substation is located in Texas, United States, near coordinates 31.422934, -102.315676. It is situated in the western part of the state, within the Permian Basin region.
McElroy Substation operates at a voltage of 69 kV (69,000 volts), which is a common sub-transmission voltage level used for distributing power from high-voltage transmission lines to local distribution networks.
McElroy Substation is owned and operated by American Electric Power (AEP), one of the largest electric utilities in the United States, serving customers in multiple states.
Substations in the US are subject to NERC reliability standards, including CIP (Critical Infrastructure Protection) for cybersecurity, and FERC regulations for wholesale electricity markets. Facilities in Texas also follow ERCOT protocols for grid reliability.
A 69 kV substation typically steps down voltage from higher transmission levels (e.g., 138 kV or 230 kV) to distribution levels (e.g., 12 kV or 34.5 kV), serving as a critical link between bulk power transmission and local distribution to end users.