xAI Colossus Supercomputer Campus (Memphis)
DGreater Memphis · US · xAI
Environment
WRI Aqueduct 4.0, 2023, 2023
EPA eGrid 2022, SRTS subregion, 2022
NOAA Palmer Drought Severity Index, 2023
Shelby County, Tennessee permit records
Facility
Estimated from reported GPU count (~100,000 H100s + H200s expanded to ~200,000+ GPUs by early 2025). At ~300W per H100 GPU plus cooling overhead and PUE ~1.3, peak IT load exceeds 200 MW; 250 MW is a conservative estimate. xAI has not published facility-level power consumption.
Evidence (2 sources)
Confirms Colossus launch, Memphis location, 100,000 H100 GPU scale, and TVA power source.
xAI launched the Colossus supercomputer at 4951 E Shelby Drive, Memphis, Tennessee. The initial system comprises 100,000 Nvidia H100 GPUs, making it the world's largest AI training cluster at launch. Power sourced from TVA via Memphis Light, Gas and Water.
Documents community concerns about diesel generator emissions and noise — diesel generators confirmed in Shelby County permit filings.
Memphis residents near the xAI Colossus facility on Shelby Drive documented concerns about diesel generator exhaust, noise, and air quality impacts during power testing phases. Shelby County permit records confirm the installation of over 35 industrial diesel generators at the site.
Community
Memphis residents documented concerns about diesel generator exhaust, noise during testing, and air quality impacts. Shelby County planning records and local reporting (Commercial Appeal, 2024) describe public hearings regarding industrial emissions from the facility.
Community flags document events recorded in public sources. They do not imply causal attribution or ongoing harm.