Overview
Mabelvale Substation is an operational electrical substation in Arkansas, United States, owned and operated by Entergy. It operates at a voltage of 500 kV, indicating its role in high-voltage transmission.
Mabelvale Substation is a high-voltage electrical substation located in Arkansas, United States. Owned and operated by Entergy, a major utility company in the region, the facility plays a critical role in the transmission grid. With a voltage level of 500 kV, it is classified as a large-scale substation, essential for long-distance power transmission and grid stability. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and is subject to Federal Energy Regulatory Commission (FERC) oversight for transmission-level assets. As part of the Entergy system, it adheres to NERC reliability standards to ensure grid security and operational efficiency. The 500 kV voltage class is typical for backbone transmission infrastructure in the United States, connecting generation sources to load centers. Mabelvale Substation serves a key role in the regional power grid, supporting the reliable delivery of electricity to communities and industries in Arkansas. Its location in the central part of the state positions it as a strategic node for power distribution and grid interconnection. The facility's operational status and high voltage underscore its importance in maintaining a stable and resilient electrical infrastructure for the region.
Environmental context
The substation is situated in a region with a mix of urban and rural areas, where electrical infrastructure must balance reliability with environmental considerations. High-voltage substations like Mabelvale can have localized impacts such as electromagnetic fields and land use, but modern design and siting practices aim to minimize these effects. The surrounding ecosystem includes forests and waterways, and the facility operates under environmental regulations that govern construction and maintenance activities.
Frequently asked questions
Mabelvale Substation is located in Arkansas, United States, near the city of Little Rock. Its coordinates are approximately 34.634322 N, -92.410334 W.
Mabelvale Substation operates at 500 kV (500,000 volts), which is a high-voltage transmission level used for long-distance power transfer in the US grid.
Mabelvale Substation is owned and operated by Entergy, a major utility company serving parts of Arkansas, Louisiana, Mississippi, and Texas.
As a transmission-level substation in the US, Mabelvale Substation must comply with NERC reliability standards and FERC regulations to ensure grid stability and security.
A 500 kV substation is a critical node in the high-voltage transmission network, stepping down voltage for distribution or interconnecting major power lines to balance load and supply across regions.