xAI
AI LabLegal name: xAI Corp · HQ: US · Private · Founded 2023
Developer of the Grok model family and operator of the Colossus supercomputer cluster in Memphis, Tennessee. Founded by Elon Musk in 2023. The Colossus facility became the world's largest known AI training cluster upon launch in 2024, initially running 100,000 Nvidia H100 GPUs, later expanded to include H200s and additional clusters. A second campus (Colossus 2) is under construction in Southaven, Mississippi. No environmental disclosures have been published. Power sourced primarily from the Tennessee Valley Authority and Entergy Mississippi grids; community noise and air quality concerns have been raised by Memphis residents regarding diesel generator testing and emissions.
Disclosure Quality
Score
—
Transparency Grade
—
Grades run T-1 (most transparent) to T-5 (least transparent).
Score computed from OpenButterfly T1–T6 disclosure framework audit. Confidence tier: C (Estimated, Documented Method).
Environmental Metrics
Fiscal year 2026. Each metric is shown at its most recent available year; rows from a different year are marked.
Confidence tiers: A measured and verified · B company-reported · C documented estimate · D uncertain estimate · E modeled · ND not disclosed.
Total Energy Consumption
6.4 TWh
≈ the annual electricity use of 614,000 US homes
method: known_capacity_model
Source: OpenButterfly pipeline
Scope 1 Emissions
1.29 Mt CO₂e
≈ the annual emissions of 280,000 passenger cars
method: scope1_ratio_model
Source: OpenButterfly pipeline
Scope 2 Emissions (market-based)
2.45 Mt CO₂e
≈ the annual emissions of 533,000 passenger cars
method: grid_carbon_model
Source: OpenButterfly pipeline
Scope 3 Emissions
5.80 Mt CO₂e
≈ the annual emissions of 1.3 million passenger cars
method: scope3_ratio_model
Source: OpenButterfly pipeline
Water Withdrawal
8.4 GL
≈ 3,364 Olympic swimming pools of water
method: wue_model
Source: OpenButterfly pipeline
Property-Line Noise (estimated)
~57.2 dBA at property line
method: cooling_load_noise_model
Source: OpenButterfly pipeline