Microsoft’s $7.3 billion AI data center sued by neighbors because non-stop noise keeps them from sleeping World News

Sometimes being a good neighbor can make others feel like they don’t have good neighbors at all. The same appears to be true of recent lawsuits facing Microsoft over its much-touted $7.3 billion U.S. artificial intelligence data center. In early 2026, Microsoft CEO Satya Nadella is proud to announce that its company’s data center in Fairwater, Mount Pleasant, Wisconsin, is “the most powerful data center for artificial intelligence in the world.” He claims it connects “hundreds of thousands” of power-hungry chips “into a seamless cluster.”While tech giants and AI enthusiasts may be excited about yet another stepping stone toward the anticipated AI boom, local residents are less than happy about the facility popping up in their neighborhood. Three residents of the village of Sturtevant, which borders Mount Pleasant, filed a class-action lawsuit against the data center, the Milwaukee Journal Sentinel reported. They claimed that Microsoft’s flashy data centers emitted “unreasonable and excessive noise to the plaintiffs’ property, thereby causing property damage by private nuisance and negligence.”“According to the lawsuit, the noise generated by “diesel generators and heating, ventilation and air conditioning (HVAC) systems, including chillers, cooling towers, air handling units and condenser fans” was “continuous and pervasive.” Residents claim Microsoft failed to mitigate the noise with “adequate noise barriers, screening or walls.”

data layer

“We heard this sound 24 hours a day and finally realized it was coming from the Microsoft campus,” one resident said. (representative picture)

Last week, a resident of a small town in southwestern Michigan measured the noise level from a nearby data center on his porch and found an annoying 60 decibels. Microsoft’s Wisconsin plant emits noise around the clock that is “similar to the whirring of a freight train engine parked nearby,” said Amy Cimbalnik, a complainant in the company’s class-action lawsuit. “We heard this noise 24 hours a day and eventually realized it was coming from the Microsoft campus,” she added.A Sturtevant resident told the watchdog that for two years the roar of building work “continued from sunrise to sunset every day”, followed by a new 24/7 mechanical hum “similar to the whir of a freight train engine”. Another resident described “noise all day and night” that affected his sleep, PC Mag reported.The tech giant acknowledged the lawsuit and told the publication that it is “committed to being a good neighbor to the communities where we build, own and operate data centers.”The lawsuit is just one in a series of lawsuits faced by tech giants such as Microsoft. The core problem is that technology companies continue to encroach on residential areas with huge and extremely resource-intensive data centers.The backlash has grown into a major bipartisan issue that could even impact the upcoming midterm elections. Despite environmental concerns, heavy water use and noise pollution, companies claim they need massive facilities to drive the technological revolution.

Microsoft at work

Microsoft is planning to build up to 15 data centers in Mount Pleasant alone.

Microsoft claimed last month that it had fixed the problem, but considering the latest lawsuit was filed on July 1, that doesn’t appear to have appeased upset residents. According to an update on Microsoft’s official blog on June 18, the company said it was investigating “the source of the sound” and claimed it had “conducted testing and implemented noise mitigation measures.” A blog post from mid-April revealed a “tonal buzzing” caused by the “cooling fans currently running at high speed.”““Several neighbors confirmed our independent monitoring findings: these mitigation measures fully resolved the problem,” the June update reads. Mount Pleasant Village Communications Director Sean Ryan told the outlet he has not received any complaints since Microsoft made changes to its property in mid-April to “address the buzz.”He added: “If people do reach out to us, village officials stand ready to respond and will continue to ensure that Microsoft is a good corporate citizen and a good neighbor.”But it seems more like a happy dream and an upcoming nightmare. Microsoft is planning to build as many as 15 data centers in Mount Pleasant alone. As facilities are added, so will the noise, and neighbors will have to be prepared for some litigation with the company over the noise.