Overview
Mount Ayr Substation is an operational electrical substation in Iowa, United States, operated by ITC. It operates at 69 kV, serving the local grid.
Mount Ayr Substation is an operational electrical substation located in Mount Ayr, Iowa, United States. It is owned and operated by ITC, a major independent transmission company in the U.S. The facility operates at a voltage of 69 kV, classifying it as a sub-transmission or distribution-level substation, typical for rural areas. 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 part of the U.S. transmission grid, it adheres to NERC's Critical Infrastructure Protection (CIP) standards. The 69 kV voltage level is common for regional distribution, connecting local loads to higher voltage transmission lines. Mount Ayr Substation plays a key role in providing reliable electricity to the surrounding community in Ringgold County. Its operation by ITC ensures integration with the broader Midwest grid, supporting local residential, agricultural, and small commercial customers. The facility's rural location underscores its importance in maintaining grid stability in less densely populated areas.
Environmental context
The substation is located in a rural agricultural area of southern Iowa, characterized by cropland and pasture. Its 69 kV voltage level indicates a lower environmental footprint compared to high-voltage transmission lines, with minimal visual impact. The site's operation is subject to standard environmental regulations for electrical infrastructure, including stormwater management and oil spill prevention for transformers.
Frequently asked questions
Mount Ayr Substation is located in Mount Ayr, Iowa, United States, at coordinates 40.717891, -94.237118.
Mount Ayr Substation operates at 69 kV (69,000 volts), which is a sub-transmission voltage level commonly used for regional power distribution.
Mount Ayr Substation is operated by ITC (ITC Holdings Corp.), a major independent electricity transmission company in the United States.
As part of the U.S. bulk power system, Mount Ayr Substation must comply with NERC reliability standards and FERC regulations, including Critical Infrastructure Protection (CIP) standards for cybersecurity and physical security.
A 69 kV substation typically steps down voltage from higher transmission lines (e.g., 138 kV or 230 kV) for distribution to local areas, serving residential, commercial, and agricultural customers.