Overview
Milroy Substation is an operational electrical substation in Indiana, United States, owned and operated by ShelbyRush Energy. It operates at 69 kV, serving as a key node in the regional power grid.
Milroy Substation is an operational electrical substation located in Indiana, United States. Owned and operated by ShelbyRush Energy, the facility plays a critical role in stepping down transmission-level voltages for local distribution. With a voltage level of 69 kV, it is classified as a medium-voltage substation, typical for serving industrial and residential loads in rural and suburban areas. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), ensuring compliance with reliability standards for grid stability. As part of the U.S. electrical infrastructure, it adheres to standards such as NERC CIP for cybersecurity and physical security. The 69 kV voltage level is common for sub-transmission systems that connect bulk power transmission to distribution networks. Milroy Substation contributes to the reliability of the local power supply in Indiana, supporting ShelbyRush Energy's service territory. Its operational status ensures continued electricity delivery to surrounding communities, and its integration into the broader grid helps maintain voltage stability and load balancing. The facility's location in a rural area underscores its importance in extending grid access to less densely populated regions.
Environmental context
The substation is situated in a rural area of Indiana, where agricultural land and small communities dominate the landscape. Electrical infrastructure like Milroy Substation supports local farming operations, residential areas, and small businesses by providing reliable power. The 69 kV voltage level minimizes visual and environmental footprint compared to higher-voltage transmission lines, while still enabling efficient electricity distribution. The facility's operation aligns with standard environmental practices for substations, including oil containment for transformers and vegetation management to prevent outages.
Frequently asked questions
Milroy Substation is located in Indiana, United States, at coordinates 39.524312, -85.460677. It is owned and operated by ShelbyRush Energy.
Milroy Substation operates at 69 kV (69,000 volts), which is a medium-voltage level commonly used for sub-transmission and distribution in the United States.
Milroy Substation is owned and operated by ShelbyRush Energy, a utility company serving parts of Indiana.
Substations in the United States must comply with NERC reliability standards, including NERC CIP for cybersecurity, and are regulated by FERC for interstate electricity transmission. Local state utility commissions also oversee distribution-level assets.
A 69 kV substation typically steps down transmission voltage from higher levels (e.g., 138 kV or 230 kV) to distribution voltage (e.g., 12 kV or 34.5 kV), serving as an interface between the bulk power system and local distribution networks.