Harrison West Substation: Operational Electrical Substation in Arkansas, USA

Harrison West Substation is an operational electrical substation located in Arkansas, United States. Owned and operated by Entergy Arkansas, it plays a key role in the regional power distribution network. The substation handles primary voltage levels of 161 kV and secondary voltage of 13.86 kV, indicating its function in stepping down transmission-level power for local distribution. As part of the U.S. electrical infrastructure, this facility operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These standards ensure grid reliability and security. The substation's voltage levels are typical for medium-to-large substations that connect high-voltage transmission lines to lower-voltage distribution networks. The substation's location in Arkansas places it within the Entergy Arkansas service territory, which supplies electricity to over 700,000 customers. Its operational status and voltage capacity suggest it is critical for maintaining stable power supply to the surrounding community. The facility contributes to grid resilience by enabling efficient power flow and voltage regulation.

The substation is situated in a region with a mix of urban and rural areas, where electrical infrastructure must balance reliability with environmental considerations. The voltage levels and operational status indicate a moderate environmental footprint, typical for substations that require land for equipment and may involve oil-filled transformers. Local regulations under NERC and FERC mandate environmental compliance, including spill prevention and electromagnetic field management.