Data Centers in Tennessee: Lawsuits, Disputes, and Your Rights

Two projects anchor the state. In South Memphis, xAI converted an industrial site into Colossus 1, one of the largest AI supercomputer facilities in the world, and did it at extraordinary speed, powering the buildout with on-site methane gas turbines rather than waiting for grid capacity. The companion Colossus 2 facility sits just over the border in Southaven, Mississippi, in the same metro area and airshed. In Clarksville, Google operates a data center campus northwest of Nashville.

What makes Tennessee different from other data center states is the power story. Most facilities plug into the grid; Colossus generated much of its own electricity with combustion turbines next to residential neighborhoods, which is why the state's defining dispute is about air, not noise or water.

The Memphis record centers on health and process:

• Unpermitted turbine pollution. Advocates counted roughly 35 methane gas turbines operating at Colossus 1 without air permits, emitting the kind of pollution that normally triggers major source permitting under the Clean Air Act.
• An overburdened community. Colossus sits in South Memphis, a predominantly Black area with a long history of industrial pollution and elevated health burdens, which is why the NAACP framed the fight as an environmental justice case.
• A permit issued after the fact. The Shelby County Health Department permitted 15 turbines in July 2025, and community groups argued the department ignored the months of unpermitted operation that came first.
• Cross-border exposure. Colossus 2 in Southaven runs 27 turbines the federal suit alleges are unpermitted, in the same metro airshed Memphis residents breathe.

Our guide to data center air pollution claims explains how these harms translate into legal claims.

The Colossus 1 permit fight (Memphis, administrative). In June 2025, the NAACP and the Southern Environmental Law Center issued a 60-day notice of intent to bring a citizen suit under the Clean Air Act over the unpermitted turbines. On July 2, 2025, the Shelby County Health Department issued a permit covering 15 turbines. SELC, representing the NAACP and Young, Gifted and Green, appealed to the Memphis and Shelby County Air Pollution Control Board, arguing the department ignored the facility's pre-permit operations. After a seven hour hearing, the board dismissed the appeals as moot in December 2025. That closed the administrative track in Memphis.

NAACP v. xAI (federal, over Colossus 2). In April 2026, the NAACP, represented by SELC and Earthjustice, filed a Clean Air Act citizen suit in the U.S. District Court for the Northern District of Mississippi against xAI and its subsidiary MZX Tech over 27 unpermitted gas turbines at Colossus 2 in Southaven. In May 2026 the plaintiffs moved for a preliminary injunction to halt unpermitted operation, require best available pollution controls, and impose daily penalties. The case is pending as of August 2026. Full coverage: NAACP v. xAI.

Google Clarksville. No litigation or formal disputes are documented over the Clarksville campus as of August 2026.

Tennessee residents affected by a data center have several paths, and the Memphis fight illustrates the first two:

• Clean Air Act citizen suits. Federal law lets affected residents and groups sue polluters directly after a 60-day notice, seeking injunctions and penalties. This is the tool the NAACP is using against xAI.
• Permit appeals and comments. Air permits go through the Memphis and Shelby County board locally and state processes elsewhere, with public comment periods and appeal rights on short deadlines.
• Nuisance and property claims for noise, dust, odors, and property damage, seeking money damages, typically taken on contingency.
• Zoning and land use challenges when a project seeks a rezoning or special permit, where procedural defects have voided approvals in other states.

Health-based claims benefit enormously from contemporaneous records: symptoms, doctor visits, and air quality complaints, all dated. Statutes of limitations vary by claim, commonly two to six years; a Tennessee attorney can confirm your deadlines. See what evidence to collect.

If you are in South Memphis or near Southaven, keep a dated record of what you experience: odors, smoke or haze, respiratory symptoms and medical visits, and every complaint you file with the health department. The federal case is pending, and affected residents' documentation helps establish the harm these facilities cause. Near any other Tennessee facility, the same rule applies: the record you build now is the case you may bring later.

Then get a legal read on it. Our free intake form lets you tell us what is happening; where a participating attorney who handles these matters in Tennessee is available, we may share your information with them with your consent, but we cannot promise that anyone will contact you.