xAI Colossus 2 campus on Tulane Road (Whitehaven)
Also called: Colossus 2
xAI's second Memphis supercomputer campus is on Tulane Road in Whitehaven, near the Mississippi line. It started running in January 2026 and xAI is adding a large new four-story building. Most of its power comes from gas turbines in nearby Southaven, Mississippi, which are the subject of legal fights over air pollution.
Where things stand: First part came online in January 2026. In 2026 xAI filed a $659 million permit for another four-story building on the campus.
🕒 Latest update (Jan 2026): Colossus 2 came online.
What we know
- 📍 WhereTulane Road in Whitehaven, south Memphis; the new building is at 5414 Tulane Road (geocoded with the Census geocoder), Memphis, Shelby County
- 🏢 CompanyxAI
- 👤 Built forxAI (Grok chatbot)
- 🌳 Size79 acres
- 🔌 Where the power comes fromMostly gas turbines just across the state line in Southaven, Mississippi, plus grid power and Tesla Megapack batteries.
- 💵 Cost$659 million
❓ Still unanswered
Nobody has answered these in public yet. Can you help find out?
- How many megawatts does Colossus 2 use from the Memphis grid? 🙋 I'll find out
- How much water will the Tulane Road campus use per day? 🙋 I'll find out
- Did xAI get any local tax breaks (PILOT) for Colossus 2? 🙋 I'll find out
What happened so far
- March 2025xAI bought the land for Colossus 2 on Tulane Road.
- 2026xAI filed a $659 million building permit for a 312,000-square-foot, four-story building at 5414 Tulane Road.
- Jan 2026Colossus 2 came online.
Local votes and rules
⏸️ Pause on new data centers
Memphis City Council is voting on a one-year pause on new data centers and AI or crypto computing sites. During the pause the city would not process rezonings, site plans or building permits for them. Existing data centers that do not expand are exempt. It passed the second of three votes unanimously on Sept. 1, 2026. The final vote was delayed twice; on Oct. 6 the council voted 7-5 to push it to Oct. 20, 2026.
⚖️ Court case
The Southern Environmental Law Center, for the NAACP and Young, Gifted & Green, appealed the Shelby County Health Department's air permit that lets xAI run 15 gas turbines at its South Memphis data center. They also object to how the department handled dozens of turbines that ran without a permit. We did not find a decision.
An aerial photo of the area.
Where this comes from
- xAI to invest $659 million in new Memphis data center cluster buildout for Grok · Construction Review Online · March 2026
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