Overview
Ruleville Substation is an operational electrical substation in Mississippi, United States, owned and operated by Entergy Mississippi. It operates at 115 kV, serving the local grid.
Ruleville Substation is an operational electrical substation located in Ruleville, Mississippi, United States. Owned and operated by Entergy Mississippi, the facility plays a key role in the regional power distribution network. As a 115 kV substation, it is classified as a medium-voltage facility typical of sub-transmission and distribution systems in the United States. 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. Entergy Mississippi, a subsidiary of Entergy Corporation, serves approximately 461,000 customers in the state. The facility's voltage level of 115 kV is common for substations that step down power from higher transmission voltages to distribution levels. Ruleville Substation contributes to the electrical infrastructure of the Mississippi Delta region, supporting residential, commercial, and agricultural loads. Its operational status ensures continued grid stability and power delivery to the surrounding community. The facility is part of Entergy's broader network of substations that interconnect with the Midcontinent Independent System Operator (MISO) market.
Environmental context
The substation is located in the Mississippi Delta, a region characterized by flat, agricultural land and a humid subtropical climate. The area is prone to severe weather events such as thunderstorms, tornadoes, and hurricanes, which can pose risks to electrical infrastructure. The facility's design likely includes measures to withstand these conditions, such as robust grounding and flood protection. The surrounding environment is primarily rural, with low population density, reducing the risk of urban-related impacts.
Frequently asked questions
Ruleville Substation is located in Ruleville, Mississippi, United States, at coordinates 33.752632, -90.540352.
Ruleville Substation operates at 115 kV (115,000 volts), which is a common voltage for sub-transmission and distribution substations.
Ruleville Substation is owned and operated by Entergy Mississippi, a subsidiary of Entergy Corporation that provides electricity to customers in Mississippi.
Substations in the United States must comply with NERC reliability standards and FERC regulations. For facilities like Ruleville, standards such as NERC CIP for cybersecurity and NERC PRC for protection systems are relevant.
A 115 kV substation typically steps down voltage from higher transmission levels (e.g., 230 kV or 500 kV) to distribution levels (e.g., 34.5 kV or 12.47 kV). It also provides switching and protection functions to ensure reliable power delivery to local loads.