CARTHAGE (MS)
SubstationMississippi · ENTERGY MISSISSIPPI INC
At a glance
CARTHAGE (MS) is an electric transmission substation in Mississippi, on ENTERGY MISSISSIPPI INC's transmission network. It is classified as sub-transmission (115 kv) and connects 2 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #122892 | 115 kV | — | IN SERVICE | 14.5 mi |
| #147913 | 115 kV | ENTERGY MISSISSIPPI INC | IN SERVICE | 18.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of CARTHAGE (MS), ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| MCADAMS | Substation-Adjacent | MS | Attala County | 500 kV | 1,000 MW | 4.3 yrs | 63.8 |
| UNKNOWN109653 | Substation-Adjacent | MS | Holmes County | 230 kV | 300 MW | 4.3 yrs | 59.5 |
| SAND HILL | Substation-Adjacent | MS | Madison County | 161 kV | 100 MW | 4.3 yrs | 58.1 |
| LANGFORD | Substation-Adjacent | MS | Rankin County | 161 kV | 100 MW | 4.3 yrs | 58.0 |
| FANNIN | Substation-Adjacent | MS | Rankin County | 161 kV | 100 MW | 4.3 yrs | 57.8 |
| UNKNOWN109369 | Substation-Adjacent | MS | Scott County | 161 kV | 100 MW | 3.9 yrs | 57.3 |
| UNKNOWN109655 | Substation-Adjacent | MS | Rankin County | 161 kV | 100 MW | 4.3 yrs | 57.2 |
| TAP146076 | Substation-Adjacent | MS | Rankin County | 161 kV | 100 MW | 4.3 yrs | 57.1 |
How does CARTHAGE (MS) compare with other substations in Mississippi?
Mississippi has 1,204 substation records in HIFLD, of which 163 carry a station name; the rest are unnamed tap points, risers and line ends. 109 named substations in the state are in CARTHAGE (MS)'s 115–229 kV band (67% of named stations). 42 sit in a higher band. 18 named substations in Mississippi operate at 345 kV or above. The highest voltage recorded in the state is 500 kV, and the state median is 161 kV.
Who owns the transmission lines at CARTHAGE (MS)?
The 2 connected lines listed above are owned by ENTERGY MISSISSIPPI INC. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 33.4 miles.
How do candidate sites near CARTHAGE (MS) score?
The 8 highest-scoring candidate sites within about 25 miles range from 57 to 64 on the 0–100 DC Readiness scale. They fall in Attala County, Holmes County, Madison County, Rankin County. The Mississippi average across 3,104 scored sites is 53. 694 of those Mississippi sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is CARTHAGE (MS) substation?
CARTHAGE (MS) has a maximum voltage of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so CARTHAGE (MS) is at the national midpoint.
How many transmission lines connect to CARTHAGE (MS) substation?
2 transmission lines terminate at or pass through CARTHAGE (MS) in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 33.4 miles.
Who owns CARTHAGE (MS) substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at CARTHAGE (MS) belong to ENTERGY MISSISSIPPI INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is CARTHAGE (MS) substation located?
CARTHAGE (MS) is in Mississippi at 32.7192, -89.5743. The datacenter candidate sites closest to it are in Attala County, Holmes County, Madison County.
Are there datacenter candidate sites near CARTHAGE (MS) substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of CARTHAGE (MS). The highest-scoring is MCADAMS at 64/100. Across Mississippi, the average DC Readiness score is 53.
Other 115 kV substations in Mississippi
- NATCHEZ· 6 lines
- NATCHEZ· 5 lines
- RANKIN· 4 lines
- VICKSBURG· 4 lines
- BANKS· 3 lines
- BEACH GROVE· 3 lines
- EAST JACKSON· 3 lines
- FONDREN· 3 lines
- All named substations in Mississippi· 163 stations
- Datacenter candidate sites in Mississippi· 3,104 sites
- Brownfield and retired plant sites in Mississippi
- Substations by state
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “CARTHAGE (MS) substation, Mississippi”, https://gridcensus.com/substations/mississippi/carthage-ms-4462055a (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
Every site and score for CARTHAGE (MS) substation, Mississippi is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.