5420 Tulane Road, Whitehaven, Memphis, Shelby County, Tennessee, United States (power plant in Southaven, Mississippi, about a mile south)
xAI
ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins68% CONFIDENCEOverall confidence: 68%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
A Cleanview[2] report says Colossus 2 is online; a Basenor blog says it has been operational since January 2026. No official energization date was found, so the first of the month is an estimate.xAI's Colossus 2 at 5420 Tulane Road in South Memphis is listed at 735 MW by Cleanview and about 1.3 GW of on-site gas generation by a Cleanview report; its turbines in Southaven, Mississippi drew an NAACP Clean Air Act suit on 14 April 2026, and no project cost has been published.
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