Overview
South Kolb Substation is an operational electrical substation in Tucson, Arizona, United States, operating at 46 kV. It plays a role in local grid stability and power distribution.
South Kolb Substation is an operational electrical substation located in Tucson, Arizona, United States. With a voltage level of 46 kV, it operates as a medium-voltage substation within the regional power grid, supporting electricity distribution to local communities and industries. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which set reliability standards for the bulk power system. As a 46 kV facility, it is typically part of the sub-transmission or distribution network, stepping down power from higher voltage transmission lines for local use. This substation contributes to the reliability of the Tucson area's electrical infrastructure by facilitating voltage regulation and load distribution. Its operational status ensures continued service to residential, commercial, and industrial customers in the region, supporting economic activity and community well-being.
Environmental context
Located in the Sonoran Desert, the substation operates in a hot, arid climate with high summer temperatures. The facility's design likely includes measures for thermal management and dust protection. Its urban setting near Tucson means it supports a growing population, with potential impacts on local land use and wildlife corridors.
Frequently asked questions
South Kolb Substation is located in Tucson, Arizona, United States, at coordinates 32.189010, -110.841556.
South Kolb Substation operates at a voltage of 46 kV, which classifies it as a medium-voltage substation typically used for sub-transmission or distribution.
As part of the U.S. bulk power system, South Kolb Substation is subject to reliability standards set by the North American Electric Reliability Corporation (NERC) and enforced by the Federal Energy Regulatory Commission (FERC).
A 46 kV substation typically steps down voltage from higher transmission levels (e.g., 115 kV or 230 kV) for distribution to local networks, serving industrial, commercial, and residential customers.
Substations in Arizona must address extreme heat, dust, and potential wildfire risks. Design features often include cooling systems, dust mitigation, and fire-resistant materials to ensure reliable operation.