{"id":"192e8128-2e70-4b4d-ab16-c87d5bf7ff48","slug":"xai-southaven-macrohard-desoto-ms","name":"xAI Southaven Data Center (MACROHARD)","aliases":[],"operatorCompanyId":"d7bc30aa-e892-42f7-a58a-e172534fec48","parentCampusId":"1135eddf-79b2-4cde-aa07-753c2624341f","lat":null,"lng":null,"streetAddress":null,"locationId":"f4cdf31d-c4d5-44eb-8a8e-f49031f29564","status":"announced","facilityType":"hyperscale","criticalItMw":null,"buildingSqft":null,"yearOperational":null,"yearAnnounced":null,"servingUtility":null,"wikidataId":null,"osmId":null,"dataSourceFamily":"c1_operator","locationPrecision":"city","reviewStatus":"reviewed","sources":[{"url":"https://www.datacenterdynamics.com/en/news/xai-confirms-new-data-center-in-mississippi-elon-musk-pledges-20bn-investment-in-state/"}],"notes":null,"createdAt":"2026-08-19T04:42:11.397Z","updatedAt":"2026-08-28T04:02:43.821Z","operator":{"name":"xAI","slug":"xai"},"parentCampus":{"id":"1135eddf-79b2-4cde-aa07-753c2624341f","slug":"xai-colossus-2-southaven-mississippi","name":"xAI Colossus 2 Data Center","aliases":[],"locationId":"f4cdf31d-c4d5-44eb-8a8e-f49031f29564","lat":null,"lng":null,"locationPrecision":null,"landStatus":null,"lifecycleState":"partially_energized","powerSourceMix":"behind_the_meter_gas","interconnectionQueueStatus":null,"interconnectionQueueId":null,"expectedEnergizationDate":null,"dedicatedSubstation":null,"gridOperator":null,"waterSourceNotes":"Sits too far from the wastewater plant and draws millions of gallons/day of drinking water (about 1.3M gal/day as of early 2026); xAI has announced an ~$80M treatment plant to reuse ~13M gal/day of wastewater. Powered by on-site natural gas turbines.","servingUtility":null,"acreage":null,"totalBuildingSqft":null,"streetAddress":null,"notes":"xAI's second Colossus supercomputer campus in Southaven, Mississippi, part of an expansion of the Memphis-area Colossus complex toward roughly 2 GW. As of 2026 it was powered largely by on-site natural gas turbines, with 46 turbines (about 495 MW) reported operating without air permits and 41 additional turbines permitted in March 2026.","keyFacts":[{"label":"Operator","value":"xAI"},{"label":"Primary workload","value":"Grok training expansion of the Memphis-area Colossus complex"},{"label":"Announced capacity","value":"~1.2 GW; combined with Colossus 1 targets ~2 GW"},{"label":"Lifecycle","value":"Partially energized (2026)"},{"label":"On-site gas turbines","value":"46 turbines (~495 MW) reported operating without air permits; 41 additional turbines permitted March 2026"},{"label":"Cooling water source","value":"Drinking water, ~1.3M gallons/day early 2026 (site sits too far from wastewater plant)"},{"label":"Planned wastewater treatment","value":"~$80M plant to reuse ~13M gallons/day of wastewater"},{"label":"State investment claim","value":"Reported multi-billion; described as largest private-sector investment in Mississippi history"},{"label":"Regulatory scrutiny","value":"SELC and state regulators flagged unpermitted gas turbines operating on-site"},{"label":"GPU mix + Q4 GB300 ramp (Musk-stated Sep 2026)","value":"Musk-stated ([company-stated](https://x.com/elonmusk/status/2103329761690865846)): Colossus 2 = 110k GB200 + 440k GB300, with another 220k GB300 fully operational the following week, another 220k in November, and maybe another 220k GB300 by late December. Cap: founder X ramp plan; not an independent energization confirmation"},{"label":"Tesla Megapacks 3.3 GWh (company-stated Sep 2026)","value":"Company-stated ([company-stated](https://www.spacex.com/Mid-South); browser-confirmed Sep 25 2026): Colossus II grid-connected battery pack will provide 3.3 GWh, described as enough to power Memphis for about two hours and as America's largest grid-connected battery pack. Cap: SpaceX Mid-South primary. Sawyer Merritt separately paraphrased these as Tesla Megapacks; that Megapack/Tesla brand wording is not on the SpaceX Mid-South page and is recorded only as a secondary paraphrase, not as company-stated"},{"label":"Regional investment / jobs / tax (company-stated Sep 2026)","value":"Company-stated ([company-stated](https://www.spacex.com/Mid-South); Sawyer extract Sep 25 2026): since joining the community in 2024, SpaceXAI is investing more than $90 billion in the region; estimated 2026 tax revenue $60M+; 7,500 local jobs supported. Cap: company community page; independent economic-impact audit not reviewed"},{"label":"Clean water recycling plant $360M (company-stated Sep 2026)","value":"Company-stated ([company-stated](https://www.spacex.com/Mid-South); Sawyer extract Sep 25 2026): SpaceXAI is investing $360 million at no cost to the city in a clean water recycling plant designed to process up to 10 million gallons of wastewater a day and offset ~3.64 billion gallons a year from the Memphis Aquifer. NOTE: existing DC fact 'Planned wastewater treatment' still lists a prior ~$80M / ~13M gallons/day figure from earlier reporting; this $360M claim is a newer dated company-stated update, not a silent overwrite of the older reported figure. Cap: company Mid-South page; plant status and final capacity not independently verified here"},{"label":"Memphis substations $35M + $20M (company-stated Sep 2026)","value":"Company-stated ([company-stated](https://www.spacex.com/Mid-South); Sawyer extract Sep 25 2026): in Memphis, SpaceXAI is investing $35 million in a 150 MW substation to support MLGW and another $20 million in a second substation, both at no cost to MLGW or homeowners. Cap: company community page claim"},{"label":"Temporary turbines remove-by July 2027 (company-stated Sep 2026)","value":"Company-stated ([company-stated](https://www.spacex.com/Mid-South); Sawyer extract Sep 25 2026): under an agreed order with the Mississippi Department of Environmental Quality, all remaining temporary turbines must be removed by July 2027; SpaceXAI says it is already taking units offline and expects to complete removal well ahead of that deadline. Cap: company Mid-South page summarizing the DEQ agreed order; DEQ primary order text not attached this pass"},{"label":"Campus scale (Mid-South company-stated Sep 2026)","value":"Company-stated ([company-stated](https://www.spacex.com/Mid-South); browser-confirmed Sep 25 2026): campus described as over 2.5 million feet, millions of GPUs, and over two gigawatts of compute. Cap: SpaceX Mid-South community page campus framing; distinct from Musk-stated GPU mix/ramp facts"},{"label":"GPUs planned 1M+ (Mid-South company-stated Sep 2026)","value":"Company-stated ([company-stated](https://www.spacex.com/Mid-South); browser-confirmed Sep 25 2026): Colossus II page figure lists GPUs planned: 1M+. Cap: SpaceX Mid-South page figure; distinct from Musk-stated Colossus 2 mix + Q4 GB300 ramp detail already on this record"}],"reviewStatus":"reviewed","sources":[{"url":"https://www.datacenterdynamics.com/en/news/xai-deploys-19-natural-gas-turbines-at-colossus-2-data-center-in-southaven-mississippi-report/","title":"DCD: xAI deploys gas turbines at Colossus 2, Southaven"},{"url":"https://en.wikipedia.org/wiki/Colossus_(data_center)","title":"Wikipedia: Colossus (data center)"},{"url":"https://www.gem.wiki/Colossus_2_power_station","title":"Global Energy Monitor: Colossus 2 power station"},{"url":"https://www.selc.org/news/xai-built-an-illegal-power-plant-to-power-its-data-center/","title":"SELC: xAI gas turbines and air permits"},{"url":"https://www.governing.com/resilience/wastewater-will-cool-this-memphis-data-center","title":"Wastewater Will Cool This Memphis Data Center","sourceName":"Governing"},{"url":"https://x.com/elonmusk/status/2103329761690865846","title":"Elon Musk: Colossus 1/2 GPU inventory and Q4 GB300 ramp","sourceName":"X (@elonmusk)","publishedAt":"2026-09-24"},{"url":"https://x.com/SawyerMerritt/status/2103332409789776197","title":"Sawyer Merritt: amplifying Musk Colossus inventory post","sourceName":"X (@SawyerMerritt)","publishedAt":"2026-09-24"},{"url":"https://www.spacex.com/Mid-South","title":"SpaceX Mid-South (Colossus community / investment page)","sourceName":"SpaceX (official)","publishedAt":"2026-09-25"},{"url":"https://x.com/SawyerMerritt/status/2103515250737758442","title":"Sawyer Merritt: SpaceX Mid-South site claims (battery pack, water, substations, turbines)","sourceName":"X (@SawyerMerritt)","publishedAt":"2026-09-25"},{"url":"https://www.spacex.com/assets/sites-pages/assets/Memphis-Local-Impact-Report.pdf","title":"Memphis Local Impact Report (SpaceX Mid-South)","sourceName":"SpaceX (official PDF)","publishedAt":"2026-09-25"},{"url":"https://www.spacex.com/assets/sites-pages/assets/Southaven-Local-Impact-Report-web.pdf","title":"Southaven Local Impact Report (SpaceX Mid-South)","sourceName":"SpaceX (official PDF)","publishedAt":"2026-09-25"}],"reviewNote":null,"createdAt":"2026-08-19T00:47:40.420Z","updatedAt":"2026-09-25T21:01:33.593Z","parties":[{"id":"fa3e9274-696b-449c-bcd9-ee1337eb451c","dataCenterId":"1135eddf-79b2-4cde-aa07-753c2624341f","companyId":"d7bc30aa-e892-42f7-a58a-e172534fec48","externalName":null,"role":"developer","structureNotes":"Owner and operator of Colossus supercomputer campuses","createdAt":"2026-08-19T00:47:44.063Z","company":{"id":"d7bc30aa-e892-42f7-a58a-e172534fec48","name":"xAI","slug":"xai"}},{"id":"ff9f7099-7a22-4035-9695-0bfca1132f3d","dataCenterId":"1135eddf-79b2-4cde-aa07-753c2624341f","companyId":"d7bc30aa-e892-42f7-a58a-e172534fec48","externalName":null,"role":"operator","structureNotes":null,"createdAt":"2026-08-19T00:47:45.287Z","company":{"id":"d7bc30aa-e892-42f7-a58a-e172534fec48","name":"xAI","slug":"xai"}}],"financialClaims":[{"id":"b319aef3-6f1b-4103-ad00-24953c599f13","dataCenterId":"1135eddf-79b2-4cde-aa07-753c2624341f","kind":"capex","label":"Reported multi-billion investment (largest private-sector in state history)","valueUsd":null,"capUsd":null,"conditions":"Aggregate figures vary across reports","asOf":"2026-06-01T00:00:00.000Z","sourceUrl":"https://en.wikipedia.org/wiki/Colossus_(data_center)","sourceType":"journalist_report","evidenceTier":"reported","createdAt":"2026-08-19T00:47:42.118Z"},{"id":"5c87689d-d2ee-4ae4-b9d7-f3ea9535736b","dataCenterId":"1135eddf-79b2-4cde-aa07-753c2624341f","kind":"capex","label":"Planned wastewater treatment plant (Colossus 2)","valueUsd":"80000000","capUsd":null,"conditions":null,"asOf":"2026-06-01T00:00:00.000Z","sourceUrl":"https://www.governing.com/resilience/wastewater-will-cool-this-memphis-data-center","sourceType":"press","evidenceTier":"reported","createdAt":"2026-08-24T18:42:48.958Z"}],"metricClaims":[{"id":"809a3544-e01a-411a-b9ab-fb1ea053dd95","dataCenterId":"1135eddf-79b2-4cde-aa07-753c2624341f","metricType":"gpu_count","valueNumeric":null,"valueText":"Targeting on the order of 1 million Nvidia Blackwell GPUs; 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