Overview
Jomax Substation is an operational electrical substation in Arizona, United States, operated by Arizona Public Service. It operates at a voltage of 69 kV, serving the local grid.
Jomax Substation is an operational electrical substation located in Arizona, United States. Owned and operated by Arizona Public Service (APS), it is part of the regional transmission and distribution network that supplies electricity to residential, commercial, and industrial customers in the area. The substation operates at a voltage of 69 kV, classifying it as a medium-voltage facility within the broader electrical infrastructure. As a substation operated by a major utility in the United States, Jomax Substation is subject to regulatory oversight by the Federal Energy Regulatory Commission (FERC) and must comply with North American Electric Reliability Corporation (NERC) reliability standards. These standards ensure grid stability, cybersecurity, and operational safety. The 69 kV voltage level is typical for subtransmission or distribution substations that step down power from higher-voltage transmission lines for local distribution. The substation plays a critical role in maintaining reliable electricity supply in its service area. Its operational status and connection to the APS grid contribute to the resilience of the regional power system. Substations like Jomax are essential for voltage regulation, load balancing, and fault isolation, supporting the overall stability of the electrical grid in Arizona.
Environmental context
The substation is located in a semi-arid region of Arizona, where high summer temperatures and occasional monsoon storms can stress electrical infrastructure. The 69 kV voltage level indicates it serves a localized area, likely including residential and commercial zones. Its urban or suburban setting means it is subject to land-use regulations and may have visual or electromagnetic field considerations. The facility's operation aligns with grid reliability needs in a climate where air conditioning demand drives peak loads.
Frequently asked questions
Jomax Substation is located in Arizona, United States, at coordinates 33.726096, -111.962248. It is operated by Arizona Public Service.
Jomax Substation operates at a voltage of 69 kV, which is typical for subtransmission or distribution substations in the United States.
Jomax Substation is owned and operated by Arizona Public Service (APS), a major utility serving Arizona.
Substations in the United States must comply with NERC reliability standards and FERC regulations, ensuring grid stability, cybersecurity, and operational safety.
A 69 kV substation typically steps down voltage from higher transmission lines for local distribution, serving residential, commercial, and industrial customers. It also provides voltage regulation and fault isolation.