All records
Data center siteSite record
xAI Colossus 1
Southwest Memphis, Shelby County, Tennessee, United StatesExpanding
Capacity
—
No public figure
Lead participant
Memphis Light Gas and Water
Retail Electric And Water Utility
Last updated
Apr 14, 2026
Most recent public record update
About xAI Colossus 1
xAI converted a former Electrolux factory into Colossus in 2024, bringing 100,000 NVIDIA Hopper GPUs online in 122 days and later doubling the interconnected cluster to 200,000 GPUs. Its rapid power and cooling buildout has become a major permitting and environmental-justice test.
Capacity
Operating capacity—An operating IT-capacity figure has not been publicly disclosed.
Initial Tva Firm Power150 MWApproved · xAI Colossus 1
Additional Tva Firm Power150 MWApproved 2026 · xAI Colossus 1
Generation15 gas turbinesAir Permit · xAI Colossus 1
Development
3 phases · 0 milestonesInitial 100,000-GPU clusterOperational
Expansion to 200,000 GPUsOperational
Further Memphis-area roadmapPlanned
Infrastructure
Interim Municipal WaterUtility Service Capacity
1,300,000 gallons/day
Permitted TurbinesAir Permit
15 gas turbines
Project map
0 of 1 project point mappedInfrastructure facts
2
Mapped records
1
Capacity figures
2
No map point available
Cooling & water: 1Site systems: 1
Facts & sources
Published claims and their source links.
Initial Gpu Count100,000 NVIDIA Hopper GPUsActual Company Reported
100,000 NVIDIA Hopper GPUs
Expanded Gpu Count200,000 NVIDIA H100 GPUsActual Company Reported
200,000 NVIDIA H100 GPUs
Initial Build Duration122 daysActual Company Reported
122 days
Doubling Duration92 daysActual Company Reported
92 days
Roadmap Gpu Count1,000,000 GPUsRoadmap
1,000,000 GPUs
Initial Tva Firm Power150 MWApproved
150 MW
Additional Tva Firm Power150 MWApproved 2026
150 MW
Interim Municipal Water1,300,000 gallons/dayUtility Service Capacity
1,300,000 gallons/day
Permitted Turbines15 gas turbinesAir Permit
15 gas turbines
Air Permit Litigation StatusChallenged statusActual
Challenged status