Overview
Table Mountain Substation is an operational electrical substation in California, owned and operated by Pacific Gas and Electric Company. It handles voltages of 500 kV, 230 kV, and 115 kV, serving as a critical node in the regional grid.
Table Mountain Substation is a high-voltage electrical substation located in California, United States. Owned and operated by Pacific Gas and Electric Company (PG&E), it plays a key role in the state's electrical infrastructure. The substation operates at multiple voltage levels, including 500 kV, 230 kV, and 115 kV, indicating its importance in both long-distance transmission and local distribution. As part of the Western Interconnection, the substation is subject to North American Electric Reliability Corporation (NERC) reliability standards and Federal Energy Regulatory Commission (FERC) regulation. PG&E's extensive grid in California requires robust substations like Table Mountain to maintain stability and meet demand. The facility's high voltage levels suggest it is a major transmission hub, likely connecting to power plants and other substations across the region. The substation's location in Northern California places it within a region prone to wildfires and seismic activity, necessitating stringent operational protocols and infrastructure hardening. Its role in the grid ensures reliable electricity supply to surrounding communities and industries, supporting both urban and rural areas. The facility's operational status underscores its ongoing contribution to California's energy resilience.
Environmental context
The substation is situated in a region with a Mediterranean climate, characterized by hot, dry summers and mild, wet winters. This climate, combined with the area's topography, creates wildfire risks that require PG&E to implement vegetation management and grid safety measures. The facility's high-voltage equipment is designed to withstand seismic events, given California's earthquake activity. Its location in a mixed urban-rural area means it supports both residential and agricultural electricity needs, with environmental considerations focused on minimizing fire ignition and maintaining grid reliability.
Frequently asked questions
Table Mountain Substation is located in California, United States, at coordinates 39.555132, -121.645169. It is owned and operated by Pacific Gas and Electric Company (PG&E).
Table Mountain Substation operates at three voltage levels: 500 kV, 230 kV, and 115 kV. These voltages indicate its role in both high-voltage transmission and sub-transmission/distribution.
Table Mountain Substation is owned and operated by Pacific Gas and Electric Company (PG&E), a major utility serving northern and central California.
As part of the US electrical grid, Table Mountain Substation must comply with NERC reliability standards and FERC regulations. These ensure grid stability, cybersecurity, and operational safety.
With voltage levels up to 500 kV, Table Mountain Substation is a critical node in California's transmission network, facilitating long-distance power transfer and supporting grid reliability for millions of customers.