xAI Data Center Noise Lawsuit Crosses a State Line: Memphis Residents Sue Over Southaven Turbines

The xAI data center noise lawsuit opens a second front against one turbine plant

On 23 September 2026 two Memphis residents filed a federal xAI data center noise lawsuit in the United States District Court for the Western District of Tennessee, asking the court to certify a Class Action on behalf of roughly 10,000 people who live within earshot of the gas turbines that power xAI's Colossus 2 supercomputer. The case is Carter et al. v. X.AI Corp. et al., No. 2:26-cv-03257, docketed as a "Torts to Land" action against X.AI Corp. and its subsidiary MZX Tech LLC, and it pleads private nuisance, public nuisance, negligence, negligence per se, trespass and violations of local noise ordinances.

Nothing has been decided. What matters about the filing is its geometry. The turbines sit on a site at 2875 Stanton Road South in Southaven, Mississippi; the data center they feed sits at 5420 Tulane Road in the Whitehaven neighborhood of Memphis, Tennessee. The sound does not stop at the state line, and neither, now, does the litigation. A first class action, Haley v. X.AI Corp., No. 3:26-cv-00148, has been pending in the Northern District of Mississippi since 8 June 2026 on behalf of Southaven and Horn Lake residents. The second, filed fifteen weeks later, claims the Tennessee half of the same noise footprint. One power plant, two federal districts, two plaintiffs' teams, two proposed classes that cannot overlap because a border runs between them.

For practitioners the interest is not Elon Musk. It is that the plaintiffs' bar has found a repeatable template — a fixed industrial source, a geographically ascertainable class, a Named Plaintiff pool that can be canvassed door to door, and a defendant with an obvious ability to pay — and is now running it against the fastest-growing category of heavy industry in the United States.

Who is suing xAI over data center noise in Memphis?

The named plaintiffs are Robert Carter and Sabrina Anderson, Tennessee residents who live inside the proposed class area. They are represented by Lieff Cabraser Heimann & Bernstein LLP, a national plaintiffs' firm with a long record in environmental and consumer class litigation, together with Greer Injury Lawyers, a Memphis personal injury firm. The defendants are X.AI Corp. and MZX Tech LLC, the entity that holds the Southaven generation site. Both are part of the group formed when SpaceX absorbed xAI in an all-stock merger earlier in 2026, a combination now commonly referred to as SpaceXAI; the dockets, however, still carry the pre-merger corporate names, and the Tennessee complaint does not name Space Exploration Technologies Corp. as a defendant. The earlier Mississippi complaint does.

The docket records the filing on 23 September 2026, which matches the announcement by plaintiffs' counsel and contemporaneous coverage by WMC Action News 5. One local outlet reported the filing as Tuesday 22 September; the docket date is the one to cite.

What the xAI data center noise lawsuit actually claims

The complaint's theory is ordinary nuisance law applied to an extraordinary load. Plaintiffs allege that xAI installed dozens of gas-fired combustion turbines at the Southaven site to generate electricity for the Colossus cluster that trains and serves the company's Grok chatbot, that those turbines run twenty-four hours a day, and that the resulting noise and vibration have made normal residential use of nearby property impossible. Counsel's announcement describes the expansion as running from three turbines to eighteen between August and September 2025 and ultimately to sixty-nine — an increase the complaint characterizes as roughly 2,300 percent. Residents quoted in the local coverage describe a continuous sound like a jet engine.

The pleaded causes of action stack in a familiar order:

Count	Theory	What it has to show	Why it is in the complaint
1	Local noise ordinance violations	Breach of a codified decibel or disturbance standard	Supplies the predicate for negligence per se and an objective liability benchmark
2	Private nuisance	Substantial and unreasonable interference with use and enjoyment of land	The core damages claim; compensable without physical injury
3	Public nuisance	Interference with a right common to the general public, plus special injury to plaintiffs	Supports abatement and broadens the remedial reach
4	Negligence	Duty, breach, causation, damages	Reaches design and siting decisions, not just the noise itself
5	Negligence per se	Violation of a safety statute or ordinance by a member of the protected class	Converts the ordinance breach into a liability shortcut
6	Trespass	Physical invasion of the plaintiff's land	Carries the dust, ash and particulate allegations, which sound in trespass rather than pure nuisance

The relief sought is equally conventional and, for a defendant, equally uncomfortable: actual, compensatory, statutory and consequential damages; Punitive Damages, pleaded on the ground that the defendants acted maliciously, oppressively, deliberately and in reckless disregard; abatement of the nuisance; injunctive relief; and a jury trial. The damages theory has two heads — loss of use and enjoyment, and diminution in the market value of class members' homes.

The second head is the one that scales. Ten thousand residents across several thousand parcels, each claiming a percentage haircut on a home value, produces an aggregate exposure that does not depend on proving a single physical injury. That is what distinguishes a noise nuisance class from a conventional Mass Tort: there is no medical causation fight, no Daubert Challenge on general causation, no plaintiff fact sheet program. There is a decibel meter, a parcel map and an appraiser.

Which neighborhoods are covered by the xAI class action?

The proposed Tennessee class is defined by street boundaries rather than by a radius. It covers people who lived, from August 2025 to the present, inside the area bounded by Winchester Road to the north, Airways Boulevard to the east, Solitaire Way to the west, and the Tennessee–Mississippi border to the south. That box takes in parts of South Memphis and Whitehaven, the neighborhoods immediately downwind and up-sound of the Southaven site. Plaintiffs estimate the class at about 10,000 people.

A boundary-line definition is a deliberate choice. Ascertainability is the first place a defendant attacks a nuisance class, and a class defined by four named streets and a state border can be checked against a parcel roll without individual inquiry. A class defined by "all persons who can hear the turbines" cannot. The August 2025 start date is equally deliberate: it pins the class period to the month the turbines arrived, which both anchors the Statute of Limitations analysis and forecloses an argument that class members bought into a pre-existing industrial condition.

How many gas turbines does xAI run in Southaven, Mississippi?

There is no single answer, and practitioners should treat any unsourced figure with suspicion. The count has moved repeatedly, the regulatory characterisation of the units has been contested, and different filings capture different months. The dated record looks like this:

Date	Reported count	Source of the figure
Aug–Sep 2025	3 rising to 18	Allegation in the Tennessee complaint, per plaintiffs' counsel
14 Apr 2026	27 operating without an air permit	NAACP Clean Air Act complaint
May 2026	33 unpermitted units	NAACP motion for a preliminary injunction
May 2026	46 "temporary-mobile" turbines	Mississippi Department of Environmental Quality
Jun 2026	57, pleaded as an 1,800 percent increase from three	Northern District of Mississippi complaint, as summarized by Crowell & Moring
Jul 2026	69 temporary units placed on a retirement schedule	Mississippi Department of Environmental Quality

Two regulatory facts sit underneath the confusion. First, on 10 March 2026 the Mississippi Environmental Quality Permit Board approved a construction permit allowing MZX Tech to install 41 permanent methane-fired turbines at Southaven, generating roughly 1.2 gigawatts. Second, many of the units actually running were classified as "temporary-mobile," a category that in Mississippi practice escapes ordinary air-emissions oversight so long as a unit operates for less than a year. On 31 July 2026 the department published a retirement schedule for the 69 temporary generators, with retirements beginning 18 August 2026 and the most recently installed units required to cease operating by 14 July 2027; the company sought additional time on the ground that supply-chain delays had pushed back delivery of the permitted permanent turbines.

That timetable is a live problem for the plaintiffs. A defendant facing a claim for prospective injunctive relief will argue that the specific nuisance instrumentality is already under an agency-supervised phase-out, which narrows the equitable case to the interval before the last temporary unit goes dark. Plaintiffs will answer that the permanent turbines replacing them are not silent, that the phase-out schedule has already slipped once, and that damages for the period since August 2025 are unaffected either way.

Why a state line produced two lawsuits over one power plant

The obvious question is why the Tennessee residents did not simply join Haley. The answer is that a border makes two cases out of one nuisance.

Nuisance is a state-law tort, and the substantive standards diverge. Tennessee and Mississippi apply different formulations of unreasonableness, different rules on permanent versus temporary nuisance and the damages that follow from each, different limitation periods, and different treatment of punitive damages. A single class spanning both states invites a choice-of-law fight that defeats Predominance under Rule 23(b)(3) — the standard objection to any multistate nuisance class. Splitting the classes at the border means each proposed class is governed by one body of law.

Venue and jury pool matter too. The Tennessee class members' properties are in Shelby County; their jurors will be drawn from the Western District of Tennessee. The Mississippi class members' properties are in DeSoto County. There is no serious personal-jurisdiction obstacle in either forum — the defendants operate a generation facility whose emissions are alleged to cross into Tennessee, and the data center itself is in Memphis — but the two classes have materially different damages profiles, because the Mississippi class lives closer to the source.

The cost is duplication. Two courts will take expert evidence on the same acoustic measurements, and two sets of counsel will litigate the same engineering questions. That is precisely the pattern the Judicial Panel on Multidistrict Litigation exists to fix, and if the number of data-center noise actions against a single operator keeps climbing, a motion to centralize becomes foreseeable. It is not there yet. Multidistrict Litigation requires common questions of fact across districts, and two actions concerning one facility are more likely to be coordinated informally, or consolidated after a transfer motion, than centralized as a new MDL.

The Clean Air Act case is not this case

Anyone reading about xAI and Southaven will also encounter National Association for the Advancement of Colored People v. X.AI Corp., No. 3:26-cv-00074 (N.D. Miss.), filed on 14 April 2026 by the Southern Environmental Law Center and Earthjustice for the national NAACP and its Mississippi State Conference. That case alleges that the turbines operate without the air permits the Clean Air Act requires and that the plant has the potential to emit more than 1,700 tons of nitrogen oxides annually. The Department of Justice moved in June 2026 to intervene and dismiss it. A preliminary-injunction hearing set for 24 August 2026 was postponed on a notice filed three days earlier.

It is a different instrument from the xAI data center noise lawsuit entirely, and the distinction is worth stating plainly because the coverage tends to blur it. A Clean Air Act citizen suit vindicates a permitting regime; its remedies are injunctive relief and civil penalties payable to the United States Treasury. It cannot compensate a homeowner for a year of broken sleep or a lower appraisal. A private nuisance class action does exactly that and nothing else. The two proceedings interact only at the evidentiary margins: an adverse permitting finding in the environmental case would be useful to the nuisance plaintiffs on negligence per se and on the reasonableness element, and a shutdown order would moot part of the abatement claim.

The buy-out letters and the class-communication problem

The most consequential development for class counsel may not be in any complaint. Reporting in Mississippi, based on letters received by households near the plant, describes MZX Tech offering through a real estate broker to purchase residential properties in Southaven, with offers benchmarked to Zillow estimates, conditioned on the seller signing a release of all claims connected to the litigation.

Pre-certification communications with putative class members are not forbidden, and a defendant is generally free to settle with individuals before a class exists. But the practice runs directly into Rule 23(d), which lets a court impose conditions on communications with class members to prevent confusion or coercion, and courts have repeatedly intervened where a defendant solicited releases from absent class members without disclosing the pending action, the effect of the release, or the recipient's right to consult counsel. The federal courts have been especially willing to act where the communication was one-sided and the recipients were unrepresented. Class counsel in both districts will look hard at what those letters said and at when they were sent relative to the filings.

There is a second, quieter effect. Every accepted buy-out removes a parcel from the class and replaces a class member with a released claim. Run at scale, that is an Opt-Out mechanism the defendant controls, and it selectively removes the class members with the strongest damages — the people closest to the turbines.

Can neighbors sue a data center for noise? The 2026 filings

Yes, and in 2026 they have, repeatedly. Nuisance requires no statute, no permit violation and no physical injury; it requires a substantial and unreasonable interference with the use and enjoyment of land. That is a low doctrinal barrier and a high factual one. The 2026 docket looks like this:

Facility / operator	Location	Filed	Forum	Shape of the claim
Cryptocurrency mining facility	Hood County, Texas	Oct 2024 (state); May 2026 (federal class)	Texas state court; federal	Private nuisance, negligence, emotional distress, restitution
Cryptocurrency mining facility	North Tonawanda, New York	Apr 2026	Federal	Public and private nuisance, negligence, emotional distress
Computing facility	Vineland, New Jersey	May 2026	Federal	Nuisance and negligence; voluntarily dismissed June 2026
Computing facility	Dowagiac, Michigan	May 2026	Federal	Nuisance and negligence, roughly one-mile class radius
xAI / MZX Tech turbine plant	Southaven, Mississippi	8 Jun 2026	N.D. Miss.	Nuisance class above 10,000; also names SpaceX
Microsoft Fairwater	Mount Pleasant, Wisconsin	Late Jul 2026	E.D. Wis.	Private nuisance and negligence; 1.5-mile radius, 1,000+ households
xAI / MZX Tech turbine plant	Memphis, Tennessee	23 Sep 2026	W.D. Tenn.	Six counts; ~10,000 class members

The defense playbook is equally settled. Operators argue that the interference is not unreasonable given the facility's utility and its compliance with permits, zoning approvals and any noise conditions adopted through public notice-and-comment; that plaintiffs came to the nuisance; that damages are individual and defeat predominance; and, where state law allows, that a right-to-farm or industrial-siting statute occupies the field. The last of those is usually the weakest: right-to-farm statutes protect established agricultural operations from later-arriving residential neighbors, not new industrial construction from the neighbors who were already there.

What Rule 23 will actually turn on

Assume liability is arguable. Certification is still where these cases live or die, and the four familiar elements pull in different directions.

Numerosity is not in issue at 10,000 members. Commonality is comfortable: whether the turbines emit noise at levels that unreasonably interfere with residential use is a single question with a common answer. Typicality is manageable if the named plaintiffs' parcels are not outliers in distance or exposure. Adequacy of Representation is unremarkable with counsel of this caliber.

Predominance is the fight. The defendants will argue that whether any given household suffered a substantial interference depends on distance, intervening structures, window glazing, hours kept and individual sensitivity, and that property-value loss is parcel-specific. Plaintiffs will answer with acoustic modeling that maps sound contours across the class area and with hedonic regression that prices proximity to the source, arguing that variation goes to the amount of damages and not to the fact of injury. Courts have split on that move in noise and odor classes; it tends to succeed where the modeling is tight and the class boundary tracks a measured contour rather than a convenient street grid.

Superiority is the plaintiffs' strongest card, and it is the reason the abatement claim matters beyond the injunction it seeks. Thousands of individually modest claims for lost sleep and depressed appraisals are close to a Negative-Value Claim if litigated one at a time against a defendant of this size. A court weighing Superiority will notice that the realistic alternative to certification is not ten thousand individual suits; it is no suits at all, plus a quiet program of releases bought at Zillow prices. Expect plaintiffs to argue for certification of a Rule 23(b)(2) abatement class alongside, or instead of, a Rule 23(b)(3) damages class — injunctive relief against a single noise source is indivisible by definition, and the (b)(2) route sidesteps the predominance problem entirely.

What it means for plaintiffs' firms, operators and class members

For plaintiffs' firms. This is a template, not a one-off. The elements that make an xAI data center noise lawsuit work — a fixed point source, a geographically defined class, publicly available permitting records that supply the negligence per se predicate, and a defendant whose capital expenditure is a matter of public record — exist at every hyperscale site now under construction. The economics differ from drug and device work: no medical records review, no causation experts, far lower per-claimant acquisition cost, and a damages model that an appraiser and an acoustician can build. The Contingency Fee arithmetic is correspondingly different, and so is the case-selection calculus.

For data center operators and their counsel. The exposure is created at siting, not at litigation. The dated turbine table above is the sort of chronology that will be read to a jury, and the gap between what was installed and what was permitted is the negligence per se claim in its entirety. Operators relying on "temporary-mobile" or similar regulatory categories should assume that the category answers the permitting question and not the nuisance question; compliance with an air permit is evidence of reasonableness, not a defense to noise. Pre-suit buy-out programs conditioned on releases should be run past class-action counsel before the first letter goes out, not after.

For class members. Nothing about the filing entitles anyone to a payment. No class has been certified, no Class Notice has issued, and there is no claims administrator. Residents inside the boundary who have already accepted a buy-out and signed a release should expect the release to be raised against them. Residents who have not should be aware that accepting an offer conditioned on a release is a decision about the litigation, whatever the covering letter calls it.

For the wider bar. Watch whether a third suit appears. Two cases over one plant is coordination; five or six is a centralization motion, and the Judicial Panel on Multidistrict Litigation has shown no reluctance to take new technology dockets when the filings cluster.

FAQ

Who is suing xAI over data center noise in Memphis?

Robert Carter and Sabrina Anderson, two Tennessee residents, filed Carter et al. v. X.AI Corp. et al., No. 2:26-cv-03257, in the Western District of Tennessee on 23 September 2026. They are represented by Lieff Cabraser Heimann & Bernstein LLP and Greer Injury Lawyers, and they sue X.AI Corp. and MZX Tech LLC on behalf of a proposed class of about 10,000 people.

What does the xAI data center noise lawsuit claim?

The xAI data center noise lawsuit claims that gas turbines running twenty-four hours a day at the Southaven, Mississippi generation site produce continuous noise and vibration that substantially and unreasonably interfere with residential property in south Memphis, and it pleads local noise ordinance violations, private nuisance, public nuisance, negligence, negligence per se and trespass, seeking compensatory and punitive damages plus abatement.

Which neighborhoods are in the xAI class action?

Parts of South Memphis and Whitehaven — specifically the area bounded by Winchester Road to the north, Airways Boulevard to the east, Solitaire Way to the west and the Tennessee–Mississippi border to the south, for anyone who lived there from August 2025 onward.

How is the Tennessee case different from the Mississippi case?

Haley v. X.AI Corp., No. 3:26-cv-00148 (N.D. Miss.), was filed on 8 June 2026 for Southaven and Horn Lake residents, pleads a class above 10,000 and names Space Exploration Technologies Corp. alongside X.AI Corp. and MZX Tech LLC. The Tennessee case covers a different class on the other side of the state line, applies Tennessee rather than Mississippi nuisance law, and does not name SpaceX. Splitting at the border keeps a single body of state law governing each class.

Is the noise case the same as the NAACP lawsuit against xAI?

No. The NAACP case, No. 3:26-cv-00074 (N.D. Miss.), filed 14 April 2026 with the Southern Environmental Law Center and Earthjustice as counsel, is a Clean Air Act citizen suit about unpermitted turbines and air emissions. It seeks injunctive relief and civil penalties payable to the government; it cannot compensate a homeowner. The Department of Justice moved to intervene and dismiss it in June 2026.

How many data center noise lawsuits have been filed?

At least seven putative class or individual nuisance actions reached US courts between October 2024 and September 2026, targeting facilities in Texas, New York, New Jersey, Michigan, Wisconsin, Mississippi and Tennessee. The New Jersey action was voluntarily dismissed in June 2026. None has reached summary judgment or trial, so there is no merits precedent yet in either direction.

What happens next in Carter v. X.AI Corp.?

Service, then a responsive pleading — realistically a partial motion to dismiss aimed at the public nuisance, negligence per se and trespass counts, as the defendants have already pursued in the Mississippi case. Class certification briefing will follow discovery into acoustic measurements and property valuations. Any motion to relate, transfer or consolidate the two federal actions would come earlier.