Overview
Mill Plain Substation is an operational electrical substation in the United States, operating at 115 kV. It plays a role in regional grid stability and power distribution.
Mill Plain Substation is an operational electrical substation located in the United States, with coordinates 45.629192, -122.624015. The facility operates at a voltage level of 115 kV, placing it within the medium-to-high voltage range typical for distribution and sub-transmission networks. As a substation, it serves as a critical node for stepping down voltage from transmission lines to distribution feeders, ensuring reliable electricity supply to local communities. 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 the bulk power system. In the United States, substations like Mill Plain are subject to NERC's Critical Infrastructure Protection (CIP) standards, ensuring cybersecurity and physical security. The 115 kV voltage level is common for sub-transmission systems that connect major load centers to the high-voltage grid. Environmentally, substations have a localized footprint, with potential impacts related to electromagnetic fields and land use. Mill Plain Substation's location in an urban or suburban area (based on its coordinates near Portland, Oregon) means it supports dense population centers, contributing to grid resilience and energy access. Its operational status indicates ongoing maintenance and compliance with industry standards, ensuring safe and efficient power delivery.
Environmental context
The substation operates in a region with a temperate climate, typical of the Pacific Northwest, which influences grid demand patterns. Its 115 kV voltage level suggests it serves as a distribution substation, likely located in a mixed urban-suburban environment. Such facilities are designed to minimize visual and noise impacts through enclosure and landscaping, while electromagnetic fields are managed within regulatory limits. The site's proximity to residential or commercial areas underscores the importance of reliable power for local communities.
Frequently asked questions
Mill Plain Substation is located in the United States, with approximate coordinates 45.629192, -122.624015, near the Portland, Oregon metropolitan area.
Mill Plain Substation operates at a voltage of 115 kV, which is typical for sub-transmission and distribution substations in the United States.
A 115 kV substation steps down high-voltage electricity from transmission lines to lower voltages for distribution to homes and businesses, ensuring stable and reliable power supply.
Mill Plain Substation operates under NERC reliability standards and FERC regulations, including Critical Infrastructure Protection (CIP) standards for security and reliability.
As an operational substation, Mill Plain helps balance load and voltage in the regional grid, supporting the integration of renewable energy and maintaining power quality for consumers.