xAI turns retired 747 jet engines into power plants for its Memphis AI complex

xAI has repurposed retired Boeing 747 jet engines as power plants for its Memphis AI complex, an unconventional move that underscores the strain rapid AI infrastructure buildout is placing on power supplies. The engines supply electricity to the company's expanding AI data center operations in Tennessee, where demand from training and inference workloads has outpaced available grid capacity. The approach highlights the tension between the speed of AI expansion and environmental regulatory scrutiny, as jet-engine turbines typically raise emissions and noise concerns compared with conventional generation. The Memphis site is central to xAI's compute ambitions, and the stopgap power solution reflects how AI firms are turning to unconventional sources while grid connections and utility approvals lag. What to watch next is whether xAI secures permanent utility-scale power and how regulators respond to the turbine emissions profile as the complex scales.