Overview
Spanish Trail Substation is an operational electrical substation in Tucson, Arizona, owned and operated by Tucson Electric Power. It operates at 138 kV, serving as a key node in the regional transmission grid.
Spanish Trail Substation is an operational electrical substation located in Tucson, Arizona, United States. Owned and operated by Tucson Electric Power, the facility operates at a voltage of 138 kV, classifying it as a high-voltage substation within the regional transmission network. This voltage level is typical for subtransmission and distribution substations that serve urban and suburban areas. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for the bulk power system. As part of Tucson Electric Power's infrastructure, it adheres to NERC's Critical Infrastructure Protection (CIP) standards and contributes to the reliability of the Arizona grid. The 138 kV voltage level is common for connecting distribution networks to the higher-voltage transmission system. Spanish Trail Substation plays a critical role in delivering electricity to residential, commercial, and industrial customers in the Tucson area. Its location in a growing urban region underscores its importance for grid stability and load balancing. The substation's operational status ensures continued support for the local economy and community, with Tucson Electric Power maintaining it as part of its commitment to reliable service.
Environmental context
The substation is situated in an urban environment in Tucson, Arizona, a region characterized by a hot desert climate with high solar insolation. The facility's 138 kV voltage level and urban location mean it is subject to typical environmental considerations for electrical infrastructure, such as heat management and vegetation clearance for fire safety. The surrounding area's growth may influence future load demands and potential upgrades to the substation.
Frequently asked questions
Spanish Trail Substation is located in Tucson, Arizona, United States, at coordinates 32.188703, -110.771812.
Spanish Trail Substation operates at 138 kV, which is a standard voltage for subtransmission and distribution substations.
Spanish Trail Substation is owned and operated by Tucson Electric Power, a utility serving southern Arizona.
As part of the US bulk power system, Spanish Trail Substation must comply with NERC reliability standards and FERC regulations, including Critical Infrastructure Protection (CIP) requirements.
A 138 kV substation typically steps down voltage from higher transmission levels for distribution to local networks, serving urban and suburban areas with reliable electricity.