Overview
Marana Switchyard is an operational 345 kV substation in the United States, owned by Iberdrola. It plays a key role in high-voltage transmission grid stability.
Marana Switchyard is a high-voltage electrical substation located in the United States, owned and operated by Iberdrola. Operating at 345 kV, it is classified as a transmission-level facility critical for regional grid stability and power distribution. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), ensuring compliance with reliability standards for bulk power systems. The 345 kV voltage level indicates its role in long-distance power transmission, connecting generation sources to load centers. As part of Iberdrola's portfolio, Marana Switchyard supports the integration of renewable energy sources and contributes to the resilience of the local electrical infrastructure. Its operational status ensures continued service to the surrounding communities and industries.
Environmental context
Located in a region with a mix of urban and rural areas, the substation's high voltage (345 kV) is critical for grid stability. The facility's age and switchgear condition are typical for transmission assets, with environmental considerations focused on electromagnetic field management and land use compatibility.
Frequently asked questions
Marana Switchyard is located in the United States, with coordinates approximately 27.103438, -97.529634.
Marana Switchyard operates at 345 kV, a high voltage level used for long-distance transmission in the US power grid.
Marana Switchyard is owned by Iberdrola, a global energy company.
As a US transmission asset, Marana Switchyard must comply with NERC reliability standards and FERC regulations for grid stability.
A 345 kV substation steps down transmission voltage for distribution or interconnects transmission lines, ensuring reliable power flow across regions.