Overview
Old Elm TDC is an operational substation in Illinois, United States, operated by Commonwealth Edison. It operates at 138 kV, serving as a key node in the regional transmission grid.
Old Elm TDC is a substation located in Illinois, United States, and is operated by Commonwealth Edison, a major electric utility in the region. The facility is operational and plays a role in the transmission and distribution of electrical power, with a voltage level of 138 kV, which is typical for sub-transmission or distribution substations. As part of the U.S. electrical infrastructure, Old Elm TDC operates under the regulatory framework established by the Federal Energy Regulatory Commission (FERC) and adheres to reliability standards set by the North American Electric Reliability Corporation (NERC). The substation likely includes switchgear and transformers to step down voltage for local distribution, and its design may incorporate automation standards such as IEC 61850 for efficient monitoring and control. The substation contributes to grid stability in the region, supporting residential, commercial, and industrial loads. Its location in Illinois places it within the PJM Interconnection or MISO regional transmission organization, which coordinates reliable electricity supply across multiple states. The facility's operational status ensures continued service to the local community.
Environmental context
The substation is situated in a suburban or rural area of Illinois, where land use is a mix of residential and agricultural. Electrical infrastructure like Old Elm TDC can have localized environmental impacts, including electromagnetic fields and potential effects on wildlife. However, modern substations are designed with mitigation measures such as shielding and habitat preservation. The facility's voltage level and urban proximity influence its environmental footprint, with lower-voltage substations typically having less extensive land requirements.
Frequently asked questions
Old Elm TDC is located in Illinois, United States, at coordinates 42.212174, -87.841611. It is operated by Commonwealth Edison.
Old Elm TDC operates at 138 kV, which is a common voltage level for sub-transmission and distribution substations in the United States.
Old Elm TDC is operated by Commonwealth Edison, a major electric utility serving northern Illinois, including the Chicago area.
Substations in the United States must comply with NERC reliability standards and FERC regulations. They often use IEC 61850 for substation automation and are subject to regional transmission organization rules.
A 138 kV substation typically steps down transmission voltage for local distribution or interconnects transmission lines. It helps maintain grid stability and reliability by managing power flow and voltage levels.