Overview
Hanford Substation is an operational electrical substation in the United States, operating at 500 kV for high-voltage transmission grid stability.
Hanford Substation is a high-voltage electrical substation located in the United States, serving as a critical node in the regional transmission grid. Operating at 500 kV, it falls within the extra-high voltage (EHV) category, typically used for long-distance bulk power transfer and interconnection of major power plants. The facility is listed as operational, indicating active participation in the power delivery network. As part of the U.S. electrical infrastructure, Hanford Substation operates under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) for wholesale electricity markets and reliability standards set by the North American Electric Reliability Corporation (NERC). The 500 kV voltage level is common for backbone transmission lines, often connecting large-scale generation sources such as hydroelectric, nuclear, or coal plants to load centers. Substations at this voltage typically employ advanced switchgear and protection systems compliant with IEEE and IEC standards. The substation's location in Washington State places it within the Western Interconnection, one of the three major power grids in North America. Its role is vital for maintaining grid stability and reliability, especially given the region's mix of hydropower and renewable energy sources. The facility supports the integration of clean energy and ensures efficient power delivery to residential, commercial, and industrial consumers in the Pacific Northwest.
Environmental context
The Hanford Substation is situated in a semi-arid region of Washington State, near the Columbia River. The area's electrical infrastructure must accommodate seasonal variations in hydropower generation and increasing renewable energy inputs from wind and solar farms. The substation's high voltage capacity helps minimize transmission losses over long distances, reducing the environmental footprint of power delivery. Its location in a historically agricultural and nuclear energy zone requires careful management of electromagnetic fields and land use to balance operational needs with local ecosystems.
Frequently asked questions
Hanford Substation is located in the United States, specifically in Washington State, near the Hanford Site. Its coordinates are approximately 46.6694° N, -119.5714° W.
Hanford Substation operates at 500 kV (500,000 volts), which is classified as extra-high voltage (EHV) and is used for long-distance bulk power transmission.
A 500 kV substation serves as a key node in the transmission network, stepping voltage up or down to facilitate efficient long-distance power transfer and interconnection between major generation sources and load centers.
In the United States, substations are regulated by the Federal Energy Regulatory Commission (FERC) for wholesale electricity markets and by the North American Electric Reliability Corporation (NERC) for reliability standards.
Hanford Substation is part of the Western Interconnection, one of the three major power grids in North America. This interconnection covers the western US and Canada, and the substation helps maintain grid stability and integrate renewable energy sources.