Overview
South Prairie Sub is an operational electrical substation in Indiana, United States, owned and operated by NIPSCO. It operates at a voltage of 138 kV, supporting regional grid stability.
South Prairie Sub is an operational electrical substation located in Indiana, United States. Owned and operated by NIPSCO (Northern Indiana Public Service Company), this facility plays a role in the regional electrical infrastructure. The substation operates at a voltage of 138 kV, which is typical for sub-transmission and distribution-level assets in the United States. As part of the U.S. electrical grid, South Prairie Sub operates under the regulatory framework established by the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These bodies enforce reliability standards for transmission and substation assets. The 138 kV voltage level indicates this substation likely serves as a distribution substation, stepping down power from higher transmission voltages for local distribution. The substation's location in Indiana places it within the Midcontinent Independent System Operator (MISO) region, which manages the bulk power system across multiple states. Its operational status ensures continued support for local electricity demand, contributing to grid reliability for residential, commercial, and industrial customers in the area.
Environmental context
The substation is situated in a rural area of Indiana, characterized by agricultural land and scattered residential developments. Electrical infrastructure in such settings typically has minimal direct environmental impact, though considerations include electromagnetic fields and potential effects on local wildlife. The 138 kV voltage level is moderate, reducing the footprint compared to higher-voltage transmission lines. NIPSCO's operations are subject to environmental regulations from the Indiana Department of Environmental Management and federal standards.
Frequently asked questions
South Prairie Sub is located in Indiana, United States, near coordinates 40.647649, -86.935742. It is owned and operated by NIPSCO.
South Prairie Sub operates at a voltage of 138 kV, which is typical for sub-transmission and distribution substations in the United States.
South Prairie Sub is operated by NIPSCO (Northern Indiana Public Service Company), a utility serving customers in Indiana.
Substations in the United States must comply with NERC reliability standards and FERC regulations. For 138 kV assets, standards cover maintenance, protection, and grid stability.
A 138 kV substation typically steps down voltage from higher transmission levels (e.g., 345 kV) for distribution to local networks, serving industrial, commercial, and residential customers.