Microsoft SAT40
Running (some may still be expanding)
Microsoft SAT40 is an AI data center in San Antonio, Texas, developed or operated by Microsoft. Satellite imagery shows its computers drawing about 75 MW today.
U.S. average: 18.2¢ (+3.4%).
Statewide context, not this project’s effect: prices move for many reasons. Source: U.S. Energy Information Administration.
Satellite figures are Epoch AI estimates from imagery of buildings, cooling and power equipment; about 80% fall within a factor of 1.4 of the true value.
- Feb 4, 2026Satellite analysis by Epoch AI · 75 MW in use
Site has already been completed, with no more visible construction on any building.
- Dec 1, 2025Satellite analysis by Epoch AI · 75 MW in use
Building 2 operational. No more construction on building, and surrounding roads are also complete.
- May 24, 2024Satellite analysis by Epoch AI · 47 MW in use
Building 1 operational. Estimated 3 months out from February, when there was still construction equipment.
- Dec 28, 2018Satellite analysis by Epoch AI · 0 MW in use
Land clearing begins for the site, specifically digging up a parking lot and making outlines for the buildings. Evident on Google Earth.
No hearings, court cases, approvals or disputes are on record for this project yet.
| Chip | Designer | Units | As of | Count is |
|---|---|---|---|---|
| H100 | Nvidia | 32,407 | May 24, 2024 | Estimate |
| B300 | Nvidia | 12,750 | Dec 1, 2025 | Estimate |
Source: Epoch AI, AI data centers, CC BY 4.0
Satellite and capacity estimates via Epoch AI (CC BY 4.0)
Satellite estimates: Epoch AI, CC BY 4.0, reformatted for this page.