Overview
Fairfield 7th Street Substation is an operational electrical substation in Fairfield, Iowa, owned by Alliant Energy. It operates at 69 kV, serving the local grid.
Fairfield 7th Street Substation is an operational electrical substation located in Fairfield, Iowa, United States. Owned by Alliant Energy, the facility plays a key role in the regional power distribution network. With a voltage level of 69 kV, it is classified as a medium-voltage substation, typical for distributing electricity to industrial, commercial, and residential customers in the area. The substation operates under the regulatory framework of the United States, which includes reliability standards set by the North American Electric Reliability Corporation (NERC) and oversight by the Federal Energy Regulatory Commission (FERC) for transmission-level assets. As a substation owned by a major utility, it is subject to compliance with NERC's Critical Infrastructure Protection (CIP) standards to ensure grid security and reliability. The 69 kV voltage level indicates it likely serves as a distribution substation, stepping down power from higher transmission voltages for local use. Environmentally, the substation is situated in a rural area near Fairfield, a small city in southeastern Iowa. Its operation supports the local economy and community by providing reliable electricity. The facility's age and specific equipment are not detailed, but typical substations of this scale are designed with modern switchgear and protection systems to minimize environmental impact and ensure safe operation.
Environmental context
The substation is located in a rural area near Fairfield, Iowa, a region characterized by agricultural land and small urban centers. Its 69 kV voltage level and distribution role mean it has a moderate footprint, with typical environmental considerations including electromagnetic field management, oil containment for transformers, and vegetation management to maintain clearance. The facility's operation supports local grid stability without significant direct environmental impact.
Frequently asked questions
Fairfield 7th Street Substation is located in Fairfield, Iowa, United States, at coordinates 41.006083, -91.972133.
The substation operates at 69 kV (69,000 volts), which is a common voltage for distribution substations in the United States.
The substation is owned by Alliant Energy, a major utility company serving Iowa and surrounding regions.
As part of the U.S. electrical grid, the substation must comply with NERC reliability standards and FERC regulations, including Critical Infrastructure Protection (CIP) requirements for security and reliability.
A 69 kV substation typically steps down higher transmission voltages (e.g., 138 kV or 161 kV) for distribution to local customers, serving as a key node in the regional power network.