Overview
Granite City 23rd Street Substation is an operational electrical substation in Granite City, Illinois, owned and operated by Ameren. It operates at 138 kV, serving the local grid.
Granite City 23rd Street Substation is an electrical substation located in Granite City, Illinois, United States. Owned and operated by Ameren, a major utility in the Midwest, this facility plays a key role in the regional power distribution network. The substation operates at a voltage of 138 kV, which is typical for sub-transmission and distribution-level infrastructure in the United States. As part of the U.S. electrical grid, this substation is subject to reliability standards set by the North American Electric Reliability Corporation (NERC) and regulated by the Federal Energy Regulatory Commission (FERC). The 138 kV voltage class is commonly used for stepping down power from higher transmission voltages to distribution levels, serving industrial and residential customers in the Granite City area. The substation's location in Granite City, an industrial hub near the Mississippi River, underscores its importance in supporting local manufacturing and community power needs. Its operational status ensures continued grid stability and electricity supply to the region, contributing to the overall resilience of the Midwest electrical infrastructure.
Environmental context
The substation is situated in an urban-industrial area of Granite City, near the Mississippi River. The surrounding environment includes a mix of industrial facilities, residential neighborhoods, and transportation corridors. Substations at this voltage level typically have a small physical footprint and are designed to minimize environmental impact through proper insulation and containment measures. The site's proximity to the river may require attention to stormwater management and flood resilience.
Frequently asked questions
Granite City 23rd Street Substation is located in Granite City, Illinois, United States, near the Mississippi River.
The substation operates at 138 kV, a common voltage for sub-transmission and distribution in the U.S.
The substation is owned and operated by Ameren, a major utility serving the Midwest region.
As part of the U.S. grid, it must comply with NERC reliability standards and FERC regulations for transmission-level assets.
A 138 kV substation steps down high-voltage transmission power to lower voltages for distribution to industrial, commercial, and residential customers.