Midwest Substation - 230 kV High-Voltage Substation in Wyoming, United States

Midwest Substation is an operational electrical substation located in Wyoming, United States, and operated by Rocky Mountain Power. The facility operates at a voltage of 230 kV, classifying it as a high-voltage substation critical for bulk power transmission across the region. As part of the U.S. electrical infrastructure, Midwest Substation falls under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) and must comply with North American Electric Reliability Corporation (NERC) reliability standards. The substation's voltage level indicates its role in the transmission network, connecting generation sources to distribution systems and ensuring grid stability. The substation's location in a rural area of Wyoming supports the integration of local energy resources, including wind and coal-fired generation, into the broader Western Interconnection. Its operation by Rocky Mountain Power, a major utility in the region, underscores its importance in delivering reliable electricity to communities and industries in the Rocky Mountain area.

The substation is situated in a semi-arid region of Wyoming, characterized by open plains and low population density. Its 230 kV infrastructure supports the transmission of electricity from remote generation sites, including wind farms, to load centers. The facility's design and operation consider local wildlife and land use, with typical mitigation measures for avian interactions and electromagnetic field management.