TAP150099
SubstationMississippi
At a glance
TAP150099 is an electric transmission substation in Mississippi. It is classified as sub-transmission (115 kv) and connects 3 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
No owner is recorded for the lines that connect here.
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #116842 | 115 kV | — | IN SERVICE | 8.6 mi |
| #129701 | 115 kV | — | IN SERVICE | 3.4 mi |
| #138457 | 115 kV | — | IN SERVICE | 0.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP150099, 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 |
|---|---|---|---|---|---|---|---|
| RITCHIE STATION | Substation-Adjacent | AR | Phillips County | 230 kV | 300 MW | 4.3 yrs | 61.3 |
| UNKNOWN111257 | Substation-Adjacent | MS | Coahoma County | 230 kV | 300 MW | 4.3 yrs | 59.3 |
| UNKNOWN111260 | Substation-Adjacent | MS | Tunica County | 230 kV | 300 MW | 4.3 yrs | 59.1 |
| EC FFE Coahoma County | Greenfield | MS | Coahoma County | — | — | 4.3 yrs | 58.7 |
| EC Near Third Street | Greenfield | MS | Coahoma | — | — | 4.3 yrs | 57.8 |
| TAP149970 | Substation-Adjacent | AR | Phillips County | 230 kV | 300 MW | 4.3 yrs | 56.7 |
| TAP149969 | Substation-Adjacent | AR | Phillips County | 230 kV | 300 MW | 4.3 yrs | 56.7 |
| EC Near Third Street | Greenfield | MS | Coahoma | — | — | 4.3 yrs | 56.1 |
How do candidate sites near TAP150099 score?
The 8 highest-scoring candidate sites within about 25 miles range from 56 to 61 on the 0–100 DC Readiness scale. They fall in Phillips County, Coahoma County, Tunica County, Coahoma. 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 TAP150099 substation?
TAP150099 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 TAP150099 is at the national midpoint.
How many transmission lines connect to TAP150099 substation?
3 transmission lines terminate at or pass through TAP150099 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 12 miles.
Where is TAP150099 substation located?
TAP150099 is in Mississippi at 34.2193, -90.5349. The datacenter candidate sites closest to it are in Phillips County, Coahoma County, Tunica County.
Are there datacenter candidate sites near TAP150099 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP150099. The highest-scoring is RITCHIE STATION at 61/100. Across Mississippi, the average DC Readiness score is 53.
More in Mississippi
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, “TAP150099 substation, Mississippi”, https://gridcensus.com/substations/mississippi/tap150099-d8b8595a (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 TAP150099 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.