Overview
Cayetano Substation is an operational electrical substation in California, owned and operated by Pacific Gas and Electric Company. It operates at 230 kV, serving as a key node in the regional transmission grid.
Cayetano Substation is an operational electrical substation located in California, United States. Owned and operated by Pacific Gas and Electric Company (PG&E), the facility operates at a voltage level of 230 kV, classifying it as a high-voltage transmission substation. This voltage level is typical for bulk power transfer within the Western Interconnection, one of the major North American power grids. As a 230 kV substation, Cayetano Substation plays a critical role in stepping down transmission-level power for distribution or interconnecting with other transmission lines. The facility operates under the regulatory oversight of the Federal Energy Regulatory Commission (FERC) and must comply with North American Electric Reliability Corporation (NERC) reliability standards. PG&E, as the owner and operator, is subject to mandatory reliability standards including NERC CIP (Critical Infrastructure Protection) for cybersecurity and physical security. The substation's location in California places it within a region with diverse energy resources, including significant renewable generation from solar and wind. Its role in the grid is essential for maintaining stability and reliability, particularly during peak demand periods and wildfire season, where PG&E has implemented enhanced operational protocols. The facility contributes to the delivery of electricity to residential, commercial, and industrial customers in the surrounding area.
Environmental context
The substation is situated in a region of California characterized by a Mediterranean climate with hot, dry summers and mild, wet winters. The area is prone to wildfire risk, which is a significant environmental factor for electrical infrastructure. PG&E has implemented wildfire mitigation measures, including enhanced vegetation management and grid hardening, to reduce ignition risks. The substation's 230 kV equipment is designed to withstand seismic activity, as California is seismically active. The facility's location in a rural or suburban setting minimizes direct environmental impact, but its operation supports the integration of renewable energy sources, contributing to broader environmental goals.
Frequently asked questions
Cayetano Substation is located in California, United States, at coordinates 37.738521, -121.771223. It is owned and operated by Pacific Gas and Electric Company (PG&E).
Cayetano Substation operates at a voltage of 230 kV, which is a standard transmission voltage in the United States, used for bulk power transfer over long distances.
Cayetano Substation is owned and operated by Pacific Gas and Electric Company (PG&E), a major investor-owned utility serving northern and central California.
As part of the US bulk power system, Cayetano Substation must comply with NERC reliability standards, including CIP for cybersecurity, and is regulated by FERC. PG&E also follows California-specific grid reliability rules.
A 230 kV substation like Cayetano serves as a node in the transmission grid, stepping down voltage for distribution or interconnecting transmission lines. It helps maintain grid stability and reliability, especially in regions with diverse generation sources.