HOLLY SPRINGS
SubstationMississippi · TENNESSEE VALLEY AUTHORITY
At a glance
HOLLY SPRINGS is an electric transmission substation in Mississippi, on TENNESSEE VALLEY AUTHORITY's transmission network. It is classified as sub-transmission (138 kv) and connects 4 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
Ownership
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #115337 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 3.9 mi |
| #161881 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 1.5 mi |
| #167002 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 17.9 mi |
| #167648 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 23.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HOLLY SPRINGS, 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 |
|---|---|---|---|---|---|---|---|
| BENTON | Substation-Adjacent | MS | Benton County | 500 kV | 1,000 MW | 3.9 yrs | 65.3 |
| TAP154306 | Substation-Adjacent | TN | Shelby County | 161 kV | 100 MW | 3.9 yrs | 64.1 |
| UNKNOWN120814 | Substation-Adjacent | TN | Shelby County | 161 kV | 100 MW | 3.9 yrs | 64.1 |
| UNKNOWN120788 | Substation-Adjacent | TN | Shelby County | 161 kV | 100 MW | 3.9 yrs | 64.1 |
| TAP154305 | Substation-Adjacent | TN | Fayette County | 161 kV | 100 MW | 3.9 yrs | 63.6 |
| ROSSVILLE | Substation-Adjacent | TN | Fayette County | 161 kV | 100 MW | 3.9 yrs | 63.4 |
| UNKNOWN115411 | Substation-Adjacent | TN | Shelby County | 161 kV | 100 MW | 3.9 yrs | 63.3 |
| UNKNOWN115415 | Substation-Adjacent | TN | Shelby County | 161 kV | 100 MW | 3.9 yrs | 63.1 |
How does HOLLY SPRINGS 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 HOLLY SPRINGS'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 HOLLY SPRINGS?
The 4 connected lines listed above are owned by TENNESSEE VALLEY AUTHORITY. Line voltages range from 161 kV to 161 kV. Their combined recorded length is about 46.8 miles.
How do candidate sites near HOLLY SPRINGS score?
The 8 highest-scoring candidate sites within about 25 miles range from 63 to 65 on the 0–100 DC Readiness scale. They fall in Benton County, Shelby County, Fayette 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 HOLLY SPRINGS substation?
HOLLY SPRINGS has a maximum voltage of 161 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so HOLLY SPRINGS is above the national midpoint.
How many transmission lines connect to HOLLY SPRINGS substation?
4 transmission lines terminate at or pass through HOLLY SPRINGS in the HIFLD line data. The connected lines listed here run at 161 kV. Together the listed lines cover about 46.8 miles.
Who owns HOLLY SPRINGS substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at HOLLY SPRINGS belong to TENNESSEE VALLEY AUTHORITY. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is HOLLY SPRINGS substation located?
HOLLY SPRINGS is in Mississippi at 34.7616, -89.4347. The datacenter candidate sites closest to it are in Benton County, Shelby County, Fayette County.
Are there datacenter candidate sites near HOLLY SPRINGS substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of HOLLY SPRINGS. The highest-scoring is BENTON at 65/100. Across Mississippi, the average DC Readiness score is 53.
Other 161 kV substations in Mississippi
- TUPELO· 10 lines
- STURGIS· 7 lines
- DE KALB· 6 lines
- PHILADELPHIA· 6 lines
- STATELINE· 6 lines
- BOONEVILLE· 5 lines
- LEAKE· 5 lines
- NEW ALBANY· 5 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, “HOLLY SPRINGS substation, Mississippi”, https://gridcensus.com/substations/mississippi/holly-springs-9e538115 (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 HOLLY SPRINGS 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.