Malachi.Energy

SpaceXAI MACROHARDRR

Operational

SpaceXAI · Southaven, MS

Maintained and reviewed by Malachi Rein, LEED AP BD+CDataset version

Summary

SpaceXAI MACROHARDRR in Southaven, MS is planned at 250 MW and about $20 billion, and is operational, with a 2026 target as of October 2026. It ranks 51st of 56 tracked US mega projects by planned capacity, 0.2% of the 106.2 GW national total. The capacity figure is press or analyst reported; the investment figure is press reported. Confidence is medium: one figure is reported, estimated, or scoped differently than the campus. Malachi.Energy tracks 4 mega projects in Mississippi in total.

Key figures

Planned capacity

250 MW

Press or analyst reported

Announced investment

$20 billion

Press reported

Status

Operational

As of October 2026

Target year

2026

First load or full build per source

Where the figures come from

Capacity basis
Press or analyst reported
Investment basis
Press reported
Nearest high-voltage transmission
The campus sits 0.2 miles from the nearest 500 kV transmission line, owned by Entergy Mississippi Inc, per HIFLD transmission data current to September 2023, computed 2026-10-02. 12 line segments rated 230 kV or higher pass within 5 miles of the campus, the highest at 500 kV. Source: HIFLD
Location basis
Campus footprint identified. The coordinate marks the campus, so distance facts on this page are measured from it. Location source: DeSoto Times-Tribune, xAI buys building and additional land in Southaven for data center.
Confidence
Medium: one figure is reported, estimated, or scoped differently than the campus.
Counted in headline totals
Yes. The investment figure is not developer-stated campus cost, so it is listed as announced rather than comparable spend.
Primary source
Measured AI, June 2026
Last verified
, dataset version 2026-10-03. Re-checked whenever the project list is refreshed.

Basis and confidence definitions are in the directory methodology.

What is known

SpaceXAI's Mississippi building beside the Memphis Colossus campus, an 810,000 sq ft warehouse retrofit online since Q1 2026 with about 250 MW of IT compute. Mississippi announced the investment at more than $20B in January 2026, of which the data center is projected at more than $10B; a permanent 1.2 GW gas plant, permitted in March 2026, replaces temporary turbines through mid-2027.

Location

Site
Southaven, MS
Coordinates
34.99, -90.03
State directory
Data centers in Mississippi (10 verified facilities)

Other tracked projects in Mississippi

Cite this record

Rein, Malachi (2026). SpaceXAI MACROHARDRR (Southaven, MS). In US Data Center Directory, dataset version 2026-10-03. Malachi.Energy. https://malachi.energy/data-centers/projects/xai-macrohardrr-southaven

@misc{malachienergy_xai_macrohardrr_southaven_2026,
  author = {Rein, Malachi},
  title = {SpaceXAI MACROHARDRR (Southaven, MS)},
  howpublished = {US Data Center Directory, Malachi.Energy},
  year = {2026},
  note = {Dataset version 2026-10-03. Capacity basis: Press or analyst reported. Investment basis: Press reported.},
  url = {https://malachi.energy/data-centers/projects/xai-macrohardrr-southaven}
}

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Figures are planned capacity and announced investment from public filings and reporting, not delivered power or audited spend. Capacity basis: press or analyst reported. Investment basis: press reported. Dataset version . Maintained by Malachi Rein for Malachi.Energy.