Overview
Estrellita Substation is an operational electrical substation in Arizona, United States, owned and operated by Arizona Public Service. It operates at a voltage of 69 kV, serving the local grid.
Estrellita Substation is an operational electrical substation located in Arizona, United States. Owned and operated by Arizona Public Service, the facility plays a role in the regional power distribution network, stepping down transmission voltages for local use. The substation operates at a voltage of 69 kV, which is typical for sub-transmission or distribution-level infrastructure in the United States. As part of the Arizona Public Service system, it adheres to North American Electric Reliability Corporation (NERC) reliability standards and is subject to Federal Energy Regulatory Commission (FERC) oversight for grid stability and interconnection requirements. Located in the desert environment of Arizona, the substation supports the electrical needs of surrounding communities and industries. Its operational status ensures continued reliability of power supply in a region characterized by high summer demand due to air conditioning loads. The facility contributes to the resilience of the local grid infrastructure.
Environmental context
The substation is situated in the Sonoran Desert region of Arizona, where high ambient temperatures and seasonal monsoon storms pose challenges for electrical infrastructure. The 69 kV equipment is designed to withstand extreme heat and occasional dust storms, with insulation and cooling systems adapted to local conditions. The facility's location in a semi-arid environment minimizes direct impact on water resources, though its operation supports energy-intensive cooling demands in the area.
Frequently asked questions
Estrellita Substation is located in Arizona, United States, at coordinates 33.349899, -112.423204. It is owned and operated by Arizona Public Service.
Estrellita Substation operates at a voltage of 69 kV, which is typical for sub-transmission or distribution-level substations in the United States.
Estrellita Substation is owned and operated by Arizona Public Service, a major utility company serving Arizona.
As part of the US electrical grid, Estrellita Substation must comply with NERC reliability standards and FERC regulations for transmission and distribution infrastructure.
A 69 kV substation typically steps down transmission voltages for distribution to local networks, serving industrial, commercial, and residential customers. It is a critical node in the power grid.