Okolona Substation: 161 kV TVA Substation in Mississippi, United States

Okolona Substation is an operational electrical substation located in Mississippi, United States, owned and operated by the Tennessee Valley Authority (TVA). The facility operates at a voltage of 161 kV, placing it in the medium-to-high voltage range typical for sub-transmission and distribution substations that support regional grid stability. As a TVA asset, Okolona Substation falls under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) and must comply with North American Electric Reliability Corporation (NERC) reliability standards. These standards ensure the substation's equipment, including switchgear and transformers, meets stringent requirements for grid security and operational resilience. The 161 kV voltage level is commonly used for interconnecting local distribution networks with higher-voltage transmission systems. Environmentally, the substation's location in rural Mississippi minimizes direct impacts on densely populated areas, though its role in distributing power to surrounding communities is critical for local economic activity and quality of life. TVA's integrated resource planning and environmental stewardship programs guide the substation's operation, balancing reliability with ecological considerations.

Located in a rural area of Mississippi, Okolona Substation operates within a landscape dominated by agriculture and small communities. The substation's 161 kV infrastructure supports local grid reliability while minimizing land-use conflicts common in urban settings. TVA's environmental management practices include vegetation control and stormwater management to reduce ecological disruption.