According to Sawyer Merritt on Twitter, Elon Musk's xAI is significantly expanding its AI datacenter infrastructure in Tennessee by installing dozens more Tesla Megapacks. These new installations are in addition to the $400 million worth of Megapacks already deployed at the site in recent months (Source: Sawyer Merritt, @SawyerMerritt, Twitter, Jan 5, 2026). This upgrade highlights a growing trend in the AI industry toward integrating advanced energy storage solutions for large-scale AI model training and deployment. The use of Tesla Megapacks allows xAI to support high-density compute operations more sustainably, offering clear business advantages in energy reliability and operational scalability for AI datacenters.