Overview
Ellisville Highway 590 Substation is an operational electrical substation in Mississippi, United States. Operated by Mississippi Power, it handles voltages of 115 kV and 12 kV.
Ellisville Highway 590 Substation is an operational electrical substation located in Mississippi, United States. Owned and operated by Mississippi Power, a subsidiary of Southern Company, this facility plays a key role in the regional electrical grid. The substation handles primary voltage levels of 115 kV and 12 kV, indicating its function in stepping down transmission-level power for local distribution. Operating under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), the substation must comply with reliability standards for grid stability. Mississippi Power serves approximately 200,000 customers across southeastern Mississippi, and this substation supports the company's transmission and distribution network. The 115 kV voltage level is typical for subtransmission systems that feed distribution substations. As part of the electrical infrastructure in a region prone to severe weather, including hurricanes and thunderstorms, the substation is designed with resilience measures to maintain grid reliability. Its location near Ellisville, a small city in Jones County, supports both residential and industrial electricity needs in the area. The facility contributes to the overall stability and capacity of the local power grid.
Environmental context
The substation is located in a rural area of southeastern Mississippi, characterized by pine forests and a humid subtropical climate. Electrical infrastructure in this region must withstand frequent lightning strikes and occasional hurricane-force winds, which can disrupt overhead lines and equipment. The facility's design likely incorporates surge protection and weather-resistant components to mitigate these risks. Additionally, the substation's proximity to natural habitats requires careful management of potential environmental impacts, such as oil spills from transformers, though specific measures are not detailed.
Frequently asked questions
Ellisville Highway 590 Substation is located in Mississippi, United States, near the city of Ellisville in Jones County. Its approximate coordinates are 31.594664 N, -89.215940 W.
The substation handles two voltage levels: 115,000 volts (115 kV) for subtransmission and 12,000 volts (12 kV) for distribution to local customers.
The substation is owned and operated by Mississippi Power, a regulated electric utility serving southeastern Mississippi and a subsidiary of Southern Company.
As part of the US electrical grid, the substation must comply with NERC reliability standards and FERC regulations for transmission-level assets, ensuring grid stability and security.
A 115 kV substation typically steps down transmission voltage from higher levels (e.g., 230 kV) to distribution voltage (e.g., 12 kV), serving as a critical node in the power delivery system for residential, commercial, and industrial customers.