Loading...
Loading...
Internal emails reveal xAI rapidly expanded portable natural-gas power at its Colossus 2 data center in Southaven, Mississippi, adding 19 turbines in recent weeks and raising site capacity by over 500 MW to 46 units. The build-out continued even as the NAACP, SELC and Earthjustice sued, alleging operation without required Clean Air Act permits; some turbines appeared after the suit was filed. Regulators note temporary turbines can run for limited periods without permits, but community groups and past permit disputes at Colossus 1 highlight broader concerns about air quality, emissions and oversight as AI firms rely on onsite fossil fuel generation.
AI companies increasingly rely on onsite fossil fuel generation to power large data centers, raising regulatory, operational and reputational risks for tech operators and infrastructure partners. Tech professionals should monitor compliance, permitting timelines and community pushback that can affect project timelines and energy sourcing decisions.
Dossier last updated: 2026-05-13 06:29:37
xAI has added 19 portable natural-gas turbines to its Colossus 2 data-center campus in Southaven, Mississippi, over two months, raising the total to 46 turbines and more than 500 MW of onsite gas capacity, according to internal emails seen by WIRED. The additions occurred while xAI faces a lawsuit from the NAACP and environmental groups alleging Clean Air Act violations for operating dozens of turbines without proper permits; eight of the new units were installed after the lawsuit was filed. Regulators have allowed temporary turbines limited permit-free operation, but community groups and lawyers say the scale and emissions matter for local air quality and climate impact. The dispute highlights tensions between hyperscale AI infrastructure needs, local environmental justice, and permitting oversight.
xAI installed 19 additional portable natural-gas turbines at its Colossus 2 data center campus in Southaven, Mississippi, over the last two months, bringing the site’s total to 46 turbines and adding more than 500 MW of capacity, according to internal emails seen by WIRED. The additions come amid a lawsuit from the NAACP, the Southern Environmental Law Center, and Earthjustice alleging xAI violated the Clean Air Act by operating dozens of turbines without required permits; eight of the new units were added after the suit was filed. Regulators say temporary turbines may operate up to a year without permits, but local community and environmental groups raise emissions and environmental-justice concerns given prior controversy at xAI’s Colossus 1 site.
Molly Taft / Wired : Internal emails: xAI added 19 gas turbines to Colossus 2 over the past two months; xAI is fighting a lawsuit alleging Clean Air Act violations at the site — Emails show that Elon Musk's company is expanding its use of portable gas-fired power at its Colossus 2 site as a fight over air quality continues.
xAI has installed 19 additional portable natural-gas turbines at its Colossus 2 data center in Southaven, Mississippi, bringing the site total to 46 and adding more than 500 MW of capacity since mid-March, according to internal emails reviewed by WIRED. The expansion occurred while xAI faces a lawsuit from the NAACP, the Southern Environmental Law Center (SELC) and Earthjustice alleging the company operated dozens of turbines without proper Clean Air Act permits; eight of the recent turbines appeared after the suit was filed. Regulators say temporary turbines can operate up to a year without permits, while community groups warn of air-quality and emissions harms. The dispute echoes earlier permit controversies at xAI’s Colossus 1 site in Memphis.