Overview
3 Mile Substation is an operational electrical substation in Michigan, United States, owned and operated by American Transmission Company. It operates at 69 kV, serving regional grid stability.
3 Mile Substation is an operational electrical substation located in Michigan, United States. Owned and operated by American Transmission Company, it is a key node in the regional transmission network, stepping down voltage for local distribution. The substation operates at 69 kV, a standard sub-transmission voltage level in the United States. As part of the American Transmission Company's portfolio, it falls under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) and must comply with North American Electric Reliability Corporation (NERC) reliability standards for grid stability and security. This facility plays a critical role in maintaining reliable electricity supply to the surrounding area. Its location in Michigan's Upper Peninsula supports both residential and industrial loads, contributing to the resilience of the regional power grid. The substation's operational status ensures continued service to the community.
Environmental context
The substation is situated in a rural area of Michigan's Upper Peninsula, near the St. Marys River. The local environment includes mixed forest and wetlands, which can influence vegetation management practices around transmission lines. As a 69 kV facility, its electromagnetic field (EMF) impact is minimal compared to higher-voltage lines, and standard mitigation measures are in place to protect wildlife and habitats.
Frequently asked questions
3 Mile Substation is located in Michigan, United States, near the St. Marys River in the Upper Peninsula.
3 Mile Substation operates at 69 kV, which is a common sub-transmission voltage level in the United States.
3 Mile Substation is owned and operated by American Transmission Company, a major transmission utility in the Midwest.
As part of the U.S. bulk power system, 3 Mile Substation must comply with NERC reliability standards and FERC regulations for transmission assets.
A 69 kV substation steps down transmission voltage for local distribution, serving residential, commercial, and industrial customers in the surrounding area.