Holladay Substation - Portland, Oregon Electrical Substation

Holladay Substation is an operational electrical substation located in Portland, Oregon, United States. Owned and operated by PacifiCorp, it plays a key role in the regional power distribution network. The substation handles primary voltages of 115 kV and secondary distribution at 12.47 kV, typical for urban substations serving commercial and residential loads. As part of PacifiCorp's transmission system, Holladay Substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These standards ensure grid reliability and compliance with mandatory reliability standards. The substation's voltage levels indicate it serves as a distribution substation, stepping down transmission voltage for local use. Located in a densely populated urban area, Holladay Substation is critical for maintaining grid stability in Portland. Its operational status and connection to PacifiCorp's network support reliable electricity supply to thousands of customers. Its continued operation underscores its importance to the local infrastructure.

Holladay Substation is situated in an urban environment in Portland, Oregon, where electrical infrastructure must balance reliability with environmental considerations. Urban substations like this one are often subject to noise and visual impact regulations. The substation's voltage levels and location near residential and commercial areas require careful management of electromagnetic fields and oil containment for transformers. Its role in the grid supports the integration of renewable energy sources, contributing to regional sustainability goals.