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NAACP Sues xAI Over Unpermitted Gas Turbines Powering Memphis-Area Data Center
MS
TN
Data Centers · Environmental Justice
April 14, 2026
Source: States News Service, Targeted News Service (NAACP, Earthjustice)
The NAACP, represented by the Southern Environmental Law Center and Earthjustice, filed a federal lawsuit against xAI and its subsidiary MZX Tech for operating 27 unpermitted gas turbines in Southaven, Mississippi, to power its Colossus 2 data center and Grok chatbot. The turbines — still mounted on the tractor trailers that delivered them — could emit more than 1,700 tons of nitrogen oxides per year, potentially making the facility the largest industrial NOx source in the greater Memphis area, a region already failing national smog standards. Additional projected emissions: 180 tons of fine particulate matter, 500 tons of carbon monoxide, and 19 tons of formaldehyde annually.
The Clean Air Act requires major pollution sources to obtain permits before construction or operation. xAI continued operating the turbines even after receiving a 60-day notice of intent to sue in February. The NAACP is asking the court to halt unpermitted operations, require installation of best available pollution control technology, and impose daily financial penalties.
A separate 41-turbine power plant at the same site is currently seeking permits through the Mississippi Department of Environmental Quality. Despite overwhelming community opposition at a public hearing, MDEQ approved xAI's permit application just three weeks after the comment period closed.
Community Takeaway
This case illustrates what can happen when a company begins operating before securing permits — residents face pollution exposure while enforcement catches up. The 500-megawatt turbine array operating without permits is unprecedented in scale.
Communities near proposed data center sites should ask early and specifically about the power source, permitting timeline, and whether any equipment will operate before permits are issued. The Clean Air Act requires permits before construction or operation of major pollution sources, but enforcement depends on state and federal agency action. Verify your state's environmental enforcement track record before relying on it as a safeguard.
What You Can Do
- Follow the federal lawsuit
- The NAACP, represented by Earthjustice and the Southern Environmental Law Center, filed a Clean Air Act lawsuit in federal court. Memphis-area residents can contact Earthjustice or the Southern Environmental Law Center for case updates and ways to support the action.
- Monitor MDEQ permit proceedings
- The Mississippi Department of Environmental Quality is reviewing permits for xAI’s separate 41-turbine power plant at the same site. Check MDEQ’s website for public notice of any future permit modifications or appeal opportunities.
- Check your state’s environmental enforcement record
- If a data center is proposed near you, research your state environmental agency’s track record on enforcing Clean Air Act requirements before construction begins.
Source: States News Service, Targeted News Service (NAACP, Earthjustice), April 14, 2026.