Overview
Rohwer Substation is an operational electrical substation in Arkansas, United States, owned and operated by Entergy Arkansas. It handles voltages of 115 kV and 13.86 kV, serving the local grid.
Rohwer Substation is an operational electrical substation located in Arkansas, United States. Owned and operated by Entergy Arkansas, it is a key node in the regional power transmission and distribution network. The substation handles primary voltage levels of 115 kV and 13.86 kV, indicating its role in stepping down transmission-level power for local distribution. As part of the U.S. electrical infrastructure, Rohwer Substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). These standards ensure grid reliability and security. The substation's voltage levels are typical for medium-scale substations that connect high-voltage transmission lines to lower-voltage distribution networks serving industrial, commercial, and residential customers. The substation's location in rural Arkansas supports the electrical needs of the surrounding community, including agricultural and residential loads. Its operational status and integration with Entergy Arkansas's grid contribute to the stability and resilience of the regional power supply. The facility plays a critical role in maintaining reliable electricity service in the area.
Environmental context
The substation is situated in a rural area of Arkansas, characterized by agricultural land and scattered residential development. The local environment is typical of the Mississippi Delta region, with flat terrain and proximity to waterways. Electrical infrastructure in such settings must consider potential impacts on local wildlife and vegetation, though substations generally have a small footprint. The age of switchgear and equipment can influence environmental risk, with older equipment potentially posing higher risks of oil leaks or SF6 emissions. However, modern substations are designed with containment and monitoring systems to mitigate such risks.
Frequently asked questions
Rohwer Substation is located in Arkansas, United States, at coordinates 33.707221, -91.236031. It is situated in a rural area near the town of Rohwer.
Rohwer Substation handles voltages of 115 kV (115,000 volts) and 13.86 kV (13,860 volts). The 115 kV side connects to the transmission grid, while the 13.86 kV side distributes power to local customers.
Rohwer Substation is owned and operated by Entergy Arkansas, a subsidiary of Entergy Corporation, which provides electricity to customers in Arkansas.
Substations in the United States must comply with NERC reliability standards for grid stability and FERC regulations for interstate transmission. Additionally, equipment may follow IEEE and ISO/IEC 61850 standards for substation automation.
A substation transforms voltage levels, switches circuits, and protects the grid. It steps down high transmission voltages to lower distribution voltages for safe delivery to homes and businesses, ensuring reliable electricity supply.