Overview
Milligan Substation is an operational electrical substation in Arizona, United States, owned and operated by Arizona Public Service. It operates at a voltage of 230 kV, serving the regional grid.
Milligan Substation is an operational electrical substation located in Arizona, United States. Owned and operated by Arizona Public Service (APS), the facility plays a key role in the state's electrical infrastructure. With a voltage level of 230 kV, it is classified as a high-voltage substation, typically used for transmission-level power distribution. The substation operates under the regulatory framework of the United States, which includes standards set by the North American Electric Reliability Corporation (NERC) for grid reliability and Federal Energy Regulatory Commission (FERC) oversight for interstate transmission. Arizona Public Service is a major utility in the region, serving a large customer base across Arizona. The 230 kV voltage level indicates that this substation is part of the bulk power system, facilitating long-distance electricity transmission. As a key node in the regional grid, Milligan Substation contributes to the stability and reliability of electricity supply in central Arizona. Its location in a semi-arid climate with high solar insolation aligns with the growing integration of renewable energy sources, such as solar farms, into the grid. The substation's operational status ensures continued support for residential, commercial, and industrial customers in the area.
Environmental context
The substation is situated in a semi-arid region of Arizona, characterized by hot summers and mild winters. The local environment is typical of the Sonoran Desert, with sparse vegetation and low rainfall. Electrical infrastructure in such areas must be designed to withstand high temperatures and dust, which can affect equipment performance. The substation's voltage level and location support the integration of renewable energy, particularly solar power, which is abundant in the region.
Frequently asked questions
Milligan Substation is located in Arizona, United States, at coordinates 32.732903, -111.566957. It is owned and operated by Arizona Public Service.
Milligan Substation operates at a voltage of 230 kV, which is typical for high-voltage transmission substations in the United States.
Milligan Substation is owned and operated by Arizona Public Service (APS), a major utility company serving Arizona.
As a US electrical substation, Milligan Substation must comply with NERC reliability standards and FERC regulations for transmission-level assets.
A 230 kV substation is part of the high-voltage transmission network, stepping down voltage for distribution or interconnecting power plants and load centers.