Grannis Substation - Arkansas Electrical Substation Operated by Southwest Arkansas Electric Cooperative

Grannis Substation is an operational electrical substation located in Arkansas, United States. Owned and operated by Southwest Arkansas Electric Cooperative, the facility plays a role in the regional power distribution network. The substation operates at a voltage of 69 kV, which is typical for sub-transmission and distribution-level infrastructure in rural areas. As part of the U.S. electrical grid, Grannis Substation operates under the regulatory framework established by the Federal Energy Regulatory Commission (FERC) and adheres to reliability standards set by the North American Electric Reliability Corporation (NERC). The substation's equipment likely includes circuit breakers, transformers, and switchgear designed to manage power flow and ensure grid stability. In rural Arkansas, substations like this one are critical for delivering electricity to residential, agricultural, and small commercial customers. The environmental context of the substation includes its location in a region with mixed forest and agricultural land. The facility's operation supports local energy needs while being subject to standard environmental regulations regarding electromagnetic fields and equipment maintenance. As part of the cooperative's infrastructure, Grannis Substation contributes to the reliability of electricity supply in southwestern Arkansas.

The substation is situated in a rural area of Arkansas, characterized by forests and farmland. Its operation involves standard electromagnetic field emissions and potential impacts from equipment maintenance, such as oil handling for transformers. The facility is subject to local environmental regulations and NERC standards to minimize ecological disruption.