Ironwood Sub - 69 kV Substation in Indiana, United States

Ironwood Sub is a substation located in Indiana, United States, owned and operated by NIPSCO. The facility operates at a voltage of 69 kV, placing it in the medium-voltage range typical for distribution-level substations that serve local communities and industrial areas. As part of the U.S. electrical infrastructure, Ironwood Sub operates under the regulatory framework established by the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These standards ensure reliability and security for the bulk power system. The substation likely employs modern switchgear and automation technologies, such as those based on the IEC 61850 standard, to facilitate efficient power distribution and grid management. The substation plays a critical role in the local grid by stepping down transmission voltages for distribution to residential, commercial, and industrial customers in the region. Its operation supports the reliability of electricity supply in northern Indiana, contributing to the overall stability of the Midwest power grid.

Located in a rural area of Indiana, Ironwood Sub operates in a region with a mix of agricultural and residential land use. The substation's 69 kV voltage level indicates it serves as a distribution hub, minimizing the need for long-distance transmission lines and reducing associated environmental impacts. Typical substations in this region are subject to regular maintenance and upgrades to meet evolving environmental and safety standards.