Summer Lake Substation - 500 kV Electrical Substation in the United States

Summer Lake Substation is a high-voltage electrical substation located in the United States, owned and operated by PacifiCorp. The facility operates at 500 kV, placing it in the large-scale transmission category, essential for long-distance power transfer and grid stability. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for bulk power systems. As a 500 kV facility, it is subject to stringent planning and operational requirements to ensure grid resilience. The substation likely employs modern switchgear and automation systems compliant with IEC 61850 standards for substation automation. Summer Lake Substation plays a key role in integrating renewable energy resources from the region, such as wind and solar, into the Western Interconnection. Its high voltage level enables efficient transmission over long distances, supporting PacifiCorp's service area across multiple states. The facility's operational status contributes to the reliability of electricity supply for residential, commercial, and industrial customers.

The substation is situated in a rural area of Oregon, characterized by high desert terrain and sensitive ecosystems. The 500 kV transmission lines associated with the substation traverse habitats that may include sagebrush steppe and wildlife corridors. Electromagnetic fields from high-voltage lines are managed through standard siting practices, and vegetation management under the lines follows environmental guidelines to minimize ecological impact.