Marshall Street Substation - Shreveport, Louisiana Electrical Substation

Marshall Street Substation is an operational electrical substation located in Shreveport, Louisiana, United States. It is owned and operated by Southwestern Electric Power Company (SWEPCO), a subsidiary of American Electric Power. The substation operates at a voltage of 12.47 kV, which is typical for distribution-level infrastructure serving local residential and commercial loads. As a distribution substation, Marshall Street Substation steps down transmission-level voltages to lower voltages for end users. It is part of SWEPCO's grid serving the Shreveport area. The facility adheres to North American Electric Reliability Corporation (NERC) reliability standards and is subject to regulation by the Federal Energy Regulatory Commission (FERC) for its interconnection to the bulk power system. The substation likely uses conventional switchgear and transformers common in mid-20th century urban substations. The substation plays a critical role in maintaining grid stability and power quality for the surrounding community. Its urban location means it supports dense load centers, including residential neighborhoods, commercial districts, and possibly industrial facilities. The operational status ensures continued reliability of electricity supply in the region, contributing to the local economy and quality of life.

Marshall Street Substation is situated in an urban area of Shreveport, Louisiana, within the Red River Valley. The region experiences a humid subtropical climate with hot summers and mild winters, which influences electricity demand patterns. The substation's location in a developed area means its environmental impact is primarily related to electromagnetic fields and potential oil leaks from transformers, which are managed through standard industry practices. The facility is not near ecologically sensitive areas, and its operation supports the energy needs of the local community without significant direct environmental disruption.