MCGREGOR CHAPEL
SubstationMississippi · TENNESSEE VALLEY AUTHORITY
MCGREGOR CHAPEL is an electric transmission substation in Mississippi, operated by TENNESSEE VALLEY AUTHORITY. It is classified as sub-transmission (138 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 |
|---|---|---|---|---|
| #5522 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 11.6 mi |
| #21834 | 161 kV | TENNESSEE VALLEY AUTHORITY | IN SERVICE | 3.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MCGREGOR CHAPEL, 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 |
|---|---|---|---|---|---|---|---|
| PLEASANT HILL | Substation-Adjacent | MS | Union County | 500 kV | 1,000 MW | 1.4 yrs | 76.6 |
| UNION | Substation-Adjacent | MS | Union County | 500 kV | 1,000 MW | 1.4 yrs | 71.2 |
| Greenfield (PLEASANT HILL - BENTON) | Greenfield | MS | Tippah County | 500 kV | 1,000 MW | 1.4 yrs | 69.3 |
| UNKNOWN111021 | Substation-Adjacent | MS | Union County | 161 kV | 100 MW | 1.4 yrs | 68.4 |
| BISSELL | Substation-Adjacent | MS | Lee County | 161 kV | 100 MW | 1.4 yrs | 68.0 |
| Greenfield (UNION - BROWNS FERRY) | Greenfield | MS | Lee County | 500 kV | 1,000 MW | 1.4 yrs | 68.0 |
| TAP149912 | Substation-Adjacent | MS | Union County | 161 kV | 100 MW | 1.4 yrs | 67.1 |
| UNKNOWN149985 | Substation-Adjacent | MS | Lafayette County | 161 kV | 100 MW | 1.4 yrs | 67.1 |
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
This page shows a public slice of the GridCensus dataset for MCGREGOR CHAPEL substation, Mississippi. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.