Overview
Superstition Substation is an operational electrical substation in Arizona, United States, owned and operated by Salt River Project. It operates at 69 kV, supporting regional grid stability.
Superstition Substation is an operational electrical substation located in Arizona, United States. Owned and operated by Salt River Project, it serves as a key node in the local electrical infrastructure, stepping down transmission voltages for distribution to residential and commercial customers. The substation operates at a voltage of 69 kV, which is typical for sub-transmission or distribution-level facilities in the United States. As part of the Salt River Project system, it adheres to North American Electric Reliability Corporation (NERC) reliability standards and is subject to Federal Energy Regulatory Commission (FERC) oversight for grid reliability and market operations. Located in the arid Sonoran Desert region, the substation supports the growing energy demands of the Phoenix metropolitan area. Its role in voltage regulation and load balancing is critical for maintaining grid stability, especially during peak summer cooling periods. The facility contributes to the resilience of the regional electrical network.
Environmental context
The substation is situated in the Sonoran Desert, a hot and arid environment where high summer temperatures drive peak electricity demand for air conditioning. The facility's 69 kV infrastructure supports local distribution networks, minimizing transmission losses over short distances. Its urban-proximate location requires careful management of electromagnetic fields and vegetation clearance to prevent wildfire risks, common in dry climates.
Frequently asked questions
Superstition Substation is located in Arizona, United States, near the Superstition Mountains area. Its coordinates are approximately 33.4146° N, 111.5336° W.
Superstition Substation is owned and operated by Salt River Project, a major utility in Arizona that provides water and power to the Phoenix metropolitan area.
Superstition Substation operates at 69 kV (69,000 volts), which is a common voltage for sub-transmission and distribution substations in the United States.
Substations in the United States must comply with NERC reliability standards for grid stability and FERC regulations for interstate electricity transmission. Local utility standards also apply.
A 69 kV substation typically steps down higher transmission voltages (e.g., 230 kV or 115 kV) to distribution levels (e.g., 12 kV or 4 kV) for delivery to homes and businesses, or it may interconnect local generation sources.