SpaceX · Tesla · xAI · U.S. · Crypto Briefing
Tesla releases largest grid battery in US at xAI’s Memphis site
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Key facts
- Between 2024 and mid-2026, xAI and its parent company SpaceX funneled roughly $1 billion into Tesla Megapacks and related infrastructure
- The 720-Megapack installation at xAI's Colossus 2 data center packs roughly 2.8 GWh of storage capacity, enough to backstop one of the most power-hungry AI facilities on the planet
- The Tennessee Valley Authority board approved a direct grid connection for the Colossus 2 site in August 2026
- Tesla began production of its next-generation Megapack 3 at the Texas Megafactory in August 2026
Summary
The 720-Megapack installation at xAI's Colossus 2 data center packs roughly 2.8 GWh of storage capacity, enough to backstop one of the most power-hungry AI facilities on the planet. Seven hundred and twenty Tesla Megapacks, arranged across what used to be relatively quiet Memphis terrain, now form the single largest grid-connected battery system in the United States. The estimated storage capacity sits around 2.8 GWh, with some projections suggesting it could climb as high as 3.3 GWh. Between 2024 and mid-2026, xAI and its parent company SpaceX funneled roughly $1 billion into Tesla Megapacks and related infrastructure.