Reuters: Musk's xAI data center installed 59 unpermitted gas turbines, polluting Black communities in Mississippi

Overview

Elon Musk's Colossus 2 xAI data center, which operates independently of the power grid using on-site natural gas turbines, is reportedly releasing thousands of tons of nitrogen oxide and carbon monoxide annually. According to Reuters, the company has installed 59 temporary, mobile natural gas turbines without permission, disproportionately affecting surrounding communities that are predominantly Black and already experiencing high rates of lung disease.

Key Findings

• xAI has acknowledged running 27 turbines without permits, claiming exemption due to their temporary nature.
• The company had an ongoing application for only 15 turbines as of July 2025, despite operating over 30 on site.
• xAI argues the turbines are exempt from permitting because they are not permanent installations and will be moved within 364 days.

Regulatory Context

The Environmental Protection Agency (EPA) issued a ruling earlier this year removing all exceptions for such equipment. However, the EPA told Reuters that "it's considering changes allowing 'regulatory flexibilities' for portable units while continuing to protect public health."

Location and Jurisdictional Complexity

The Colossus data centers were built in record time, requiring Musk to bring his own energy sources due to the years-long process of connecting to the grid and upgrading it to meet his 1-GW capacity target. However, the Clean Air Act permitting process could take similarly long, with reports suggesting xAI bypassed it entirely.

Adding to the complexity:

• The data center is located in Tennessee.
• At least 57 of the 59 turbines are situated just over the state line in Mississippi.
• Mississippi issued a permit for 41 permanent turbines in March.
• xAI and Mississippi regulators claim the turbines are mobile and therefore exempt, but they are also not covered by the permanent permit.

Health and Environmental Impact

The NAACP has filed a lawsuit against xAI (now called SpaceXAI after its recent merger with SpaceX), alleging that the unpermitted turbines have caused:

• 111% increase in nitrogen oxide exhaust
• 83% increase in PM2.5 airborne particles
• 88% increase in formaldehyde emissions

According to the Reuters investigation, just 30 of the 59 turbines could emit annually:

| Pollutant | Estimated Annual Emissions | |-----------|---------------------------| | Nitrogen oxide | 2,500 tons | | Carbon monoxide | 4,000 tons | | Formaldehyde | 22 tons |

These figures far exceed the 100-ton nitrogen oxide threshold set by the Clean Air Act for permit-free turbine operation.

Affected Communities

Census data shows that residents within a five-mile radius of the source are predominantly Black. Since Colossus 2 straddles a state boundary, data was reported for two counties:

| County | Black Population (%) | County-Wide Average (%) | |--------|----------------------|-------------------------| | DeSoto County, MS | 46% | 33% | | Shelby County, TN | 94% | 52% |

While the report did not claim deliberate targeting, it referenced a 2022 study showing that historically redlined areas continue to suffer from higher air pollutant emissions.

Company Response

SpaceXAI recently announced an automatic 50% discount and free hardware rentals on Starlink plans for residents near Colossus 1 and 2. SpaceX VP for Starlink Michael Nicolls stated on X:

"The unique capabilities of the Colossus datacenters could not be accomplished without the partnership and support from the local Memphis community."

Critics, however, view this as a public relations stunt aimed at improving the company's image while the community continues to battle air and noise pollution.

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