Overview
Via Doña 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.
Via Doña Substation is an operational electrical substation located in Arizona, United States. Owned and operated by Arizona Public Service, the facility plays a key role in the regional power distribution network. The substation operates at a voltage of 69 kV, which is typical for sub-transmission and distribution-level infrastructure in the United States. As part of the Arizona Public Service grid, Via Doña Substation is subject to North American Electric Reliability Corporation (NERC) reliability standards and Federal Energy Regulatory Commission (FERC) regulations for transmission-level assets. The substation's voltage level places it within the medium-voltage range, supporting local distribution and industrial customers. The facility's equipment likely includes switchgear, transformers, and protection systems compliant with IEEE standards. The substation's location in Arizona, a state with growing energy demand and significant solar generation, underscores its importance in maintaining grid stability. By stepping down voltage for local distribution, Via Doña Substation helps ensure reliable electricity supply to residential and commercial users in the region. Its operational status and integration with the broader APS network contribute to the resilience of the Southwestern US power grid.
Environmental context
The substation is situated in a semi-arid region of Arizona, where high summer temperatures and seasonal monsoon storms can affect grid operations. The facility's design likely incorporates thermal management for transformers and weather-resistant insulation. Its location in a suburban area near Phoenix means it supports urban electricity demand while being subject to local land-use regulations. The substation's voltage level and equipment age influence its environmental footprint, with modern switchgear reducing SF6 emissions.
Frequently asked questions
Via Doña Substation is located in Arizona, United States, near the city of Phoenix. Its coordinates are approximately 33.7423° N, -111.8267° W.
Via Doña Substation operates at a voltage of 69 kV, which is a common sub-transmission voltage level in the United States.
Via Doña Substation is owned and operated by Arizona Public Service (APS), a major electric utility serving Arizona.
As part of the US power grid, Via Doña Substation must comply with NERC reliability standards and FERC regulations for transmission and distribution assets.
A 69 kV substation typically steps down transmission voltage for local distribution, serving industrial, commercial, and residential customers. It also provides switching and protection functions for grid reliability.