Illegal Pollution from Data Center Power Plants Shouldn’t Harm Our Communities. We’re Suing xAI.

Gas turbines — like the ones used at xAI’s Southaven power plant — pump out smog-forming pollution, fine particulate matter, and hazardous chemicals. These pollutants are tied to increases in asthma, respiratory diseases, heart problems, and certain cancers.

Case Overview

Elon Musk’s company, xAI, built an illegal power plant in Mississippi to power its AI data center — with no air permits, lax oversight, and little concern for families living nearby.

We sued.

Represented by Earthjustice and Southern Environmental Law Center, the NAACP and the Mississippi State Conference of the NAACP sued xAI and its subsidiary, MZX Tech, for the tech companies’ unlawful operation of 27 unpermitted methane gas turbines in Southaven, Mississippi, to power its Colossus 2 data center in South Memphis.

Thermal drone footage shows unpermitted turbines operating at xAI’s gas plant in Southaven, Miss., nearly two weeks after the EPA ruled such turbines require permits before they can run. (Evan Simon / Floodlight)

The lawsuit explains that xAI is illegally operating 27 gas turbines without an air permit in Southaven, Mississippi, effectively building a power plant for its Colossus 2 data center, which powers the company’s chatbot, Grok.

xAI’s failure to get a permit for its power plant — which is located near homes, schools, and churches — is a clear violation of the Clean Air Act, which requires major sources of pollution to obtain air permits before being constructed or operated.

xAI’s power plant in Southaven has the potential to emit more than 1,700 tons of nitrogen oxides (NOx) each year. The illegal turbines also have the potential to release up to 180 tons of fine particulate matter, 500 tons of carbon monoxide, and 19 tons of formaldehyde — a toxic, cancer-causing chemical — each year.

xAI’s illegal power plant in Mississippi is located half a mile from homes and just a mile from an elementary school, causing serious concern for community health. Neighbors have expressed significant concerns about the unpermitted power plant’s impact on their air, their health, and their quality of life.

The lawsuit was filed in federal district court for the Northern District of Mississippi. Among other things, the NAACP is asking the court to:

  • Declare that xAI has violated the Clean Air Act
  • Force xAI to stop operating unpermitted turbines at its Southaven facility
  • Order xAI to install the best available control technology on the power plant
  • Assess financial penalties to xAI for every day it violated federal law
A huge, white-colored building is in a large clearing, surrounded by dense forest. Rows of dozens of large, rectangular industrial machinery operate outside of the building. A truck with a bright red cab drives past the building and machinery. Two tall, yellow construction cranes are visible behind the building.
The xAI data center, Colossus II, in Memphis, Tennessee, just north of Southaven, Mississippi. (Brad Zweerink / Earthjustice)

Case Updates

A man in a light gray suit and blue tie looks directly into the camera with his hands clasped.
June 23, 2026 Article

The Battle to Stop the AI Industry’s Illegal Pollution

Across the U.S., Earthjustice is challenging plans to power data centers in ways that threaten communities.

A blurry figure in the foreground looks at the construction of gas turbines behind a tarp-covered fance.
June 16, 2026 Article

Why Trump Is Going After Your Right to Take Polluters to Court (and How We’re Fighting Back)

Citizens suits are powerful tools to enforce the law, which is why the Trump administration is attacking them.

June 16, 2026 In the News: The New York Times

D.O.J. Seeks to Halt Pollution Lawsuit Against Elon Musk’s Data Center

Laura Thoms, Director of Enforcement, Earthjustice: “It’s remarkable for the United States to intervene on behalf of a polluter in a case like this. Ordinarily, they would intervene to enforce the law.”