Colossus 1
340 MW AI data center in Memphis, TN, United States: operational.
- Capacity: 340 MW
- Location: Memphis, TN, United States
- Developer: SpaceXAI
- Tenant: Anthropic
- Status: operational
- Estimated cost: $5B
- Energy source: Gas-fired (mobile generators & power plant)
Colossus 1 is a 340 MW AI data center project located in Memphis, TN, United States, currently operational. It is being built by SpaceXAI for tenant Anthropic. The estimated build cost is $5B. Its energy source is listed as Gas-fired (mobile generators & power plant). This project is one of thousands of data-center facilities tracked by Data Center Index across TN, United States, covering operational, under-construction, announced, and permitted sites.
Notes
Users: Anthropic; Epoch 'Current power' = 340 MW (may include campus expansions); Cost modeled at ~$44B/GW by Epoch AI
Public companies linked to Colossus 1
Developers, tenants, and suppliers tracked by Data Center Index with exposure to this project:
- SpaceXAI (SPCX), developer · ai lab
- Anthropic (ANTHROPIC), tenant · ai lab
- Vertiv Holdings (VRT), liquid cooling · cooling · high DC exposure
- Trane Technologies (TT), liquid cooling · cooling · high DC exposure
- Micron Technology (MU), memory supplier · chip fab · high DC exposure
- SK Hynix (000660.KS), memory supplier · chip fab · high DC exposure
- Super Micro Computer (SMCI), ai server · it hardware · high DC exposure
Related data center projects
- Colossus 2, Memphis, TN, United States · operational
- xAI Memphis Area Compute Program (Colossus and MACROHARDRR), Memphis, TN, United States · operational
- xAI MACROHARDRR Southaven, Southaven, MS, United States · under construction
- SpaceXAI Tulane Road Data Center (Southaven), Southaven, MS, United States · permitted
- PORTS-Pike Technology Campus, 8 GW, Pike County, OH, United States · announced
- Nexus Hubbard Campus, 7.7 GW, Hill County, TX, United States · under construction
- Stratos Hyperscale Data Center, 7.5 GW, Box Elder County, UT, United States · announced
- Meta Hyperion, 5 GW, Richland Parish, LA, United States · under construction
Frequently asked questions
- What is Colossus 1?
- Colossus 1 is an AI data center project in Memphis, Tennessee tracked by Data Center Index. Its status is operational.
- Where is Colossus 1?
- Colossus 1 is in Memphis, Tennessee. Every tracked Tennessee campus, with counts and capacity, is at https://datacenterindex.ai/markets/tennessee.
- How big is Colossus 1?
- Data Center Index tracks Colossus 1 at 340 MW, on an estimated $5B build. That capacity is an estimate. We modeled or inferred it, and no source states it.
- Who is building Colossus 1?
- SpaceXAI is developing Colossus 1, with Anthropic named as the tenant.
- Which public companies are linked to Colossus 1?
- Data Center Index links 7 tracked public companies to Colossus 1: SpaceXAI (SPCX), Anthropic (ANTHROPIC), Vertiv Holdings (VRT), Trane Technologies (TT), Micron Technology (MU), and 2 more. Each is a developer, tenant or supplier with a sourced link to the project.
Sources
- Higher limits with SpaceX compute (anthropic.com · press · 2026-05-06)
- MLGW update on utility support for xAI (mlgw.com · press · 2025-05-05)
- Inside Look: Action News 5's Joe Birch tours growing xAI data center (actionnews5.com · press · 2025-08-18)
- Greater than 100 MW firm power arrangement with CTC Property LLC (xAI), resolution and memo (tva-azr-eastus-cdn-ep-tvawcm-prd.azureedge.net · press · 2024-11-07)
- Business Insider (finance.yahoo.com · press · 2026-05-06)