Sunset Substation - Avista 115 kV Substation in Spokane, Washington

Sunset Substation is an operational electrical substation located in Spokane, Washington, United States. Owned and operated by Avista, the facility plays a key role in the regional power distribution network. The substation operates at a voltage of 115 kV, classifying it as a medium-voltage facility typical of urban distribution systems. As part of the United States electrical infrastructure, Sunset Substation operates under the regulatory framework established by the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These standards ensure grid reliability and security. The substation likely includes modern switchgear and protection systems compliant with industry standards, supporting Avista's service area in the Pacific Northwest. The substation's location in Spokane places it within a growing urban area, where it contributes to meeting residential and commercial electricity demand. Its operational status and voltage level indicate a critical role in maintaining grid stability and power quality for the surrounding community. Avista's ownership ensures adherence to utility best practices and regulatory compliance.

The substation is situated in an urban environment in Spokane, Washington, where it supports local electricity distribution. Urban substations like Sunset are typically designed to minimize visual impact and may include noise mitigation measures. The surrounding area's climate, with cold winters and warm summers, requires robust equipment to handle seasonal load variations. The facility's operation aligns with regional grid reliability goals, contributing to efficient power delivery while managing environmental considerations such as electromagnetic fields and stormwater runoff.