Mississippi board approves xAI permit for 41 gas turbines in Southaven

In short: Mississippi regulators approved a permit allowing xAI to run 41 natural gas turbines at a power plant in Southaven, Mississippi, to support a data center near Memphis.

What happened

On March 10, 2026, the Mississippi Department of Environmental Quality Permit Board voted unanimously to approve a permit for xAI. The permit allows xAI to operate 41 natural gas turbines at an expanded power plant in Southaven, Mississippi.

The turbines are meant to help supply electricity for the Colossus 2 data center in nearby Memphis, Tennessee. A data center is a large building full of computers that store data and run services, and it needs a steady, high amount of power, like a factory that runs all day.

The draft permit allows the facility to emit up to 423 tons a year of nitrogen oxides, also called NOx. NOx is a smog-forming air pollutant, which can worsen air quality. The New York Times reported that this amount is comparable to the combined output of two local Tennessee Valley Authority natural gas plants.

Residents and advocacy groups have raised concerns about noise from the turbines and possible air quality impacts in the south Memphis and north Mississippi area. Some turbines were already installed, and questions about whether they could legally operate were resolved by the permit approval.

Critics, including the Mississippi State Conference of the NAACP and the national NAACP, also criticized how the public process was handled. They said the public hearing was held on Election Day, announced five days in advance, located nearly three hours from Southaven, and that responses to public comments were issued on March 7, a Saturday. MDEQ said the timing matched its standard monthly meeting schedule.

Why it matters

This decision connects the growth of AI computing to local, everyday issues like air quality and noise. It also raises questions about how easy it is for nearby residents to learn about and participate in decisions that may affect their health and neighborhood.

Source: NYTimes