Monticello East Substation - 115 kV Substation in Arkansas, USA

Monticello East Substation is an electrical substation located in Arkansas, United States, owned and operated by Entergy Arkansas. The facility operates at a voltage of 115 kV, placing it in the medium-voltage range typical for distribution-level substations that serve local communities and industrial areas. The substation 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 part of the Entergy Arkansas grid, it adheres to NERC's Critical Infrastructure Protection (CIP) standards and FERC's transmission tariff requirements. The 115 kV voltage level is common for sub-transmission and distribution networks, connecting higher-voltage transmission lines to lower-voltage distribution feeders. Monticello East Substation contributes to the electrical infrastructure of southeastern Arkansas, supporting grid stability and power delivery to the Monticello area. Its operational status ensures continued service for residential, commercial, and industrial customers, while its location in a rural region underscores the importance of substations in extending reliable electricity to less densely populated areas.

The substation is situated in a rural area of Arkansas, where the local environment includes agricultural land and forested regions. Substations at this voltage level typically have a small physical footprint and are designed to minimize environmental impact through proper siting and equipment containment. The facility's operation supports grid reliability without significant direct environmental effects, though it is part of the broader electrical infrastructure that enables energy distribution across the region.