Overview
Johnson Hill Substation is an operational electrical substation owned by Puget Sound Energy in Washington State, USA. It operates at 115 kV, supporting regional grid stability.
Johnson Hill Substation is an operational electrical substation located in Washington State, United States, owned and operated by Puget Sound Energy. The facility operates at a voltage of 115 kV, classifying it as a medium-voltage substation within the regional transmission and distribution network. As part of the US electrical infrastructure, Johnson Hill Substation operates under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) and adheres to North American Electric Reliability Corporation (NERC) reliability standards. The substation likely employs standard switchgear and automation systems compliant with ISO/IEC 61850 for substation automation, ensuring safe and efficient power distribution. The substation plays a critical role in delivering electricity to the surrounding community, supporting both residential and commercial loads. Its location in Washington State, a region with a mix of hydroelectric and renewable energy sources, contributes to the overall resilience and stability of the Pacific Northwest grid.
Environmental context
The substation is situated in a temperate region of the Pacific Northwest, characterized by moderate climate and significant hydroelectric generation. Its operation supports the integration of renewable energy sources, such as wind and solar, into the grid. The facility's design and maintenance practices align with environmental regulations to minimize electromagnetic field impacts and ensure safe operation near residential areas.
Frequently asked questions
Johnson Hill Substation is located in Washington State, United States, at coordinates 47.042089, -122.844067.
Johnson Hill Substation operates at a voltage of 115 kV, which is a medium-voltage level commonly used for subtransmission and distribution.
The substation is owned and operated by Puget Sound Energy, a major utility serving the Pacific Northwest region.
As part of the US electrical grid, Johnson Hill Substation must comply with NERC reliability standards and FERC regulations for transmission and distribution assets.
A 115 kV substation steps down high-voltage transmission power for local distribution, ensuring reliable electricity supply to residential, commercial, and industrial customers.