Overview
Coconino Substation is an operational electrical substation in Arizona, United States, operating at 230 kV. It plays a key role in regional grid stability and power distribution.
Coconino Substation is an operational electrical substation located in Arizona, United States, near the city of Flagstaff. The facility operates at a voltage of 230 kV, classifying it as a high-voltage substation critical for transmission and distribution within the regional power grid. As part of the U.S. electrical infrastructure, it supports the interconnection of generation sources and load centers. Operating under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), Coconino Substation adheres to mandatory reliability standards for grid stability. The 230 kV voltage level is typical for bulk power transmission, linking major substations and facilitating long-distance electricity transfer. The substation's equipment likely includes circuit breakers, transformers, and switchgear compliant with industry standards such as IEEE and IEC. Situated in the southwestern United States, the substation serves a region with growing energy demand from residential, commercial, and industrial sectors. Its location near the Colorado Plateau and forested areas underscores the importance of reliable power for both urban and rural communities. The facility contributes to grid resilience and supports the integration of renewable energy sources, such as solar and wind, common in the region.
Environmental context
The substation is located in a semi-arid region of northern Arizona, characterized by ponderosa pine forests and high desert terrain. The 230 kV infrastructure traverses areas with wildfire risk, requiring vegetation management and fire mitigation protocols. The facility's operation supports local communities and industries while adhering to environmental regulations for electromagnetic fields and land use.
Frequently asked questions
Coconino Substation is located in Arizona, United States, near Flagstaff, with coordinates approximately 35.1757° N, -111.6539° W.
Coconino Substation operates at 230 kV, a high-voltage level used for bulk power transmission in the U.S. electrical grid.
The substation is regulated by NERC and FERC, which enforce reliability standards for grid stability and security in the United States.
A 230 kV substation steps down transmission voltage for distribution or interconnects transmission lines, ensuring efficient power flow and grid reliability.
Substations in Arizona must manage wildfire risks, comply with electromagnetic field guidelines, and implement land use practices to protect local ecosystems.