Overview
Heidelberg Denbury Substation is an operational electrical substation in Mississippi, United States, owned by Mississippi Power. It handles multiple voltage levels including 115 kV, 12 kV, and 4 kV.
Heidelberg Denbury Substation is an operational electrical substation located in Mississippi, United States. Owned by Mississippi Power, a subsidiary of Southern Company, the facility plays a key role in the regional transmission and distribution grid. The substation handles voltage levels of 115,000 volts (115 kV) for transmission, along with 12,000 and 4,000 volts for distribution, indicating its function as a step-down substation serving local industrial and residential loads. Operating under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), the substation adheres to mandatory reliability standards. Mississippi Power's infrastructure is part of the Southeastern Electric Reliability Council (SERC) region, which coordinates grid stability across the southeastern United States. The facility's voltage class (115 kV) places it in the sub-transmission category, typical for rural and suburban supply. The substation supports the electrical infrastructure for the Heidelberg area and surrounding communities in Jasper County. Its operational status ensures continued power delivery to local customers, including industrial facilities such as the nearby Denbury Resources oil and gas operations. The facility contributes to grid resilience in a region prone to severe weather, including hurricanes and thunderstorms.
Environmental context
Located in rural Mississippi, the substation is situated in a region with mixed pine forests and agricultural land. The area experiences a humid subtropical climate with hot summers and mild winters, which influences electrical demand patterns. The substation's proximity to oil and gas operations means it supports energy extraction activities, which have localized environmental considerations such as land use and water management. The facility's design likely includes measures to mitigate wildfire risks from vegetation contact and to withstand extreme weather events common to the Gulf Coast region.
Frequently asked questions
Heidelberg Denbury Substation is located in Mississippi, United States, near the town of Heidelberg in Jasper County. The exact coordinates are 31.866456 N, -89.025247 W.
The substation handles multiple voltage levels: 115,000 volts (115 kV) for transmission, and 12,000 volts (12 kV) and 4,000 volts (4 kV) for distribution, indicating it serves as a step-down substation.
Heidelberg Denbury Substation is owned by Mississippi Power, a regulated electric utility subsidiary of Southern Company. The operator is also Mississippi Power.
Substations in the United States must comply with NERC reliability standards for grid stability and FERC regulations for transmission. Additionally, equipment often follows IEEE and ISO/IEC 61850 standards for automation and protection.
The substation steps down high-voltage transmission power to lower distribution voltages for local customers, including residential, commercial, and industrial users such as nearby oil and gas operations. It is critical for maintaining reliable electricity supply in the Heidelberg area.