Overview
Limestone Substation, operated by Southern California Edison, is an operational electrical substation in California, United States, handling voltages of 66 kV and 12 kV.
Limestone Substation is an operational electrical substation located in California, United States, and operated by Southern California Edison. It serves as a key node in the regional power grid, stepping down transmission-level voltages for local distribution. The substation operates at voltage levels of 66 kV and 12 kV, typical for sub-transmission and distribution infrastructure in the United States. As part of Southern California Edison's network, it is subject to NERC reliability standards and FERC regulation, ensuring grid stability and compliance with mandatory reliability requirements. This facility plays a critical role in delivering electricity to surrounding communities and industrial users. Its location in Southern California places it within a region with high electricity demand and significant renewable energy integration, underscoring its importance for grid resilience and energy transition goals.
Environmental context
The substation is situated in a semi-urban area of Southern California, a region characterized by a Mediterranean climate with hot, dry summers and mild winters. The local grid infrastructure supports high summer peak loads due to air conditioning demand. The substation's voltage levels and operational status indicate it is part of the backbone distribution network, contributing to reliable power supply in an area prone to wildfire risks and seismic activity.
Frequently asked questions
Limestone Substation is located in California, United States, at coordinates 33.650226, -117.688654. It is operated by Southern California Edison.
Limestone Substation operates at voltage levels of 66 kV and 12 kV, which are typical for sub-transmission and distribution in the US power grid.
Limestone Substation is operated by Southern California Edison, a major investor-owned utility serving Southern California.
As part of the US bulk power system, Limestone Substation must comply with NERC reliability standards and FERC regulations, ensuring grid stability and security.
Substations like Limestone step down high transmission voltages to lower distribution voltages, enabling safe delivery of electricity to homes and businesses. They also provide switching and protection functions.