Overview
Griswold 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.
Griswold Substation is an electrical substation located in Arizona, United States, and is owned and operated by Arizona Public Service (APS), a major utility in the region. The facility is operational and plays a role in the state's electrical infrastructure, with a voltage level of 69 kV, which is typical for distribution-level substations that step down power for local delivery. As part of the U.S. electrical grid, Griswold Substation operates under the regulatory framework established by the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These standards ensure grid reliability and security, with compliance obligations for all transmission and distribution assets. The 69 kV voltage class is common for sub-transmission systems that connect bulk power to distribution networks. The substation's location in Arizona places it within a region experiencing growing electricity demand due to population growth and economic development. APS serves over 1.3 million customers across the state, and substations like Griswold are critical for maintaining reliable power supply to residential, commercial, and industrial users. The facility contributes to grid stability and supports the integration of renewable energy sources, such as solar, which are abundant in the Southwest.
Environmental context
The substation is situated in an arid urban environment in Arizona, where high summer temperatures drive peak electricity demand for air conditioning. The facility's 69 kV voltage level indicates it serves local distribution needs, and its operation is subject to environmental regulations regarding electromagnetic fields and equipment insulation. The surrounding area is characterized by desert ecosystems, and the substation's design includes measures to minimize visual impact and ensure safe operation in extreme heat conditions.
Frequently asked questions
Griswold Substation is located in Arizona, United States, at coordinates 33.556572, -112.056187. It is owned and operated by Arizona Public Service.
Griswold Substation operates at a voltage of 69 kV, which is typical for distribution-level substations that step down power for local delivery.
Griswold Substation is owned by Arizona Public Service (APS), a major electric utility serving over 1.3 million customers in Arizona.
As part of the U.S. electrical grid, Griswold Substation must comply with NERC reliability standards and FERC regulations, which ensure grid stability and security.
A 69 kV substation typically serves as a sub-transmission facility, connecting bulk power transmission lines to local distribution networks, ensuring reliable electricity supply to communities.