Risk: Medium Substation Operational

Greenleaf Substation: PG&E 115 kV Substation in California

United States

Overview

Greenleaf Substation is an operational electrical substation in California, owned and operated by Pacific Gas and Electric Company (PG&E) with a voltage level of 115 kV.

Greenleaf Substation is an operational electrical substation located in California, United States. It is owned and operated by Pacific Gas and Electric Company (PG&E), a major investor-owned utility serving northern and central California. The substation operates at a voltage level of 115 kV, classifying it as a sub-transmission or distribution substation within the regional power grid. As part of PG&E's extensive electrical infrastructure, Greenleaf Substation plays a role in stepping down voltage from higher transmission levels for local distribution. The facility is subject to North American Electric Reliability Corporation (NERC) reliability standards and Federal Energy Regulatory Commission (FERC) regulations, ensuring grid stability and compliance with mandatory reliability requirements. PG&E's network includes numerous substations of similar voltage class, supporting the diverse load demands of California's residential, commercial, and agricultural sectors. The substation's location in a rural area of California's Central Valley places it in a region with significant agricultural activity and growing population centers. Its operational status contributes to the reliability of electricity supply for surrounding communities and critical infrastructure. The facility's age and specific equipment details are not disclosed, but typical substations of this voltage level utilize standard switchgear and protection systems to maintain safe and efficient power distribution.

Environmental context

The substation is situated in California's Central Valley, a region with hot, dry summers and mild winters, which influences electrical demand patterns due to air conditioning loads. The area is also prone to wildfire risks, prompting PG&E to implement enhanced vegetation management and grid hardening measures around substations. The facility's location away from densely populated urban centers reduces exposure to certain environmental stressors but requires robust design to withstand seismic activity common in California.

Frequently asked questions

Greenleaf Substation is located in California, United States, at coordinates 39.052493, -121.691954, in the Central Valley region.

Greenleaf Substation operates at a voltage of 115 kV, which is typical for sub-transmission and distribution substations.

Greenleaf Substation is owned and operated by Pacific Gas and Electric Company (PG&E), a major utility in California.

As part of the US electrical grid, Greenleaf Substation must comply with NERC reliability standards and FERC regulations for transmission and distribution infrastructure.

A 115 kV substation typically steps down voltage from higher transmission levels (e.g., 230 kV or 500 kV) for local distribution, serving industrial, commercial, and residential customers.
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