SpaceX’s $329 Million Tesla Megapack Purchases Reveal Rising AI Power Demands

Summary

SpaceX sharply increased its purchases of Tesla’s grid-scale Megapack batteries during 2026, according to an earnings report cited by TechCrunch on August 4. The company bought $295 million of Megapacks in the second quarter, bringing its total spending on the systems to $329 million for the year so far. The figures mean that nearly 90% of the reported year-to-date purchases occurred during the April-to-June quarter. Elon Musk is SpaceX’s chief executive and largest shareholder and also leads Tesla, making the purchases transactions within his closely connected group of companies.

The spending follows a series of corporate consolidations across Musk’s businesses. His artificial intelligence company, xAI, acquired social network X in 2025, and SpaceX subsequently acquired xAI earlier in 2026. Before the SpaceX-xAI combination, xAI had purchased $430 million of Tesla Megapacks for its data centers. The article reports that xAI bought $34 million of the batteries in the first quarter of 2026, matching the difference between SpaceX’s $329 million first-half total and its $295 million second-quarter spending. The source does not specify the period covered by the earlier $430 million figure.

TechCrunch considers xAI’s data centers the most likely destination for the newly purchased batteries, although the article does not cite confirmation from SpaceX, Tesla or xAI about where the equipment is being installed. The purchases are not the only disclosed commerce between Musk-controlled companies: a regulatory filing said SpaceX had acquired $131 million of Tesla Cybertrucks at manufacturer’s suggested retail prices as of December 2025. Together, these disclosures demonstrate the degree to which the companies buy equipment from one another, even as the precise commercial terms and operational uses are not fully detailed in the supplied report.

Large batteries have a practical role in AI infrastructure. Training models and serving AI queries can cause GPU power consumption to rise and fall rapidly rather than remain constant. Megapacks can provide backup electricity in a second or less and discharge additional power during those demand spikes. That can help a data center avoid expensive utility peak charges, reduce pressure on on-site generation and maintain stable operations when computing loads change abruptly. This makes the purchases relevant not only as related-company transactions, but also as evidence of the energy infrastructure required to support large AI workloads.

The battery spending does not mean xAI has moved away from fossil-fuel generation. According to the article, the company has relied heavily on natural gas, including dozens of turbines described as unpermitted at a Mississippi site near the Colossus data-center project. The interpretation is therefore mixed: Megapacks could improve resilience and manage volatile electricity demand, but they complement generation rather than create energy themselves. What happens next depends on the pace of xAI’s computing expansion, whether SpaceX continues buying at the second-quarter rate and what disclosures emerge about deployment locations, pricing and permitting. The article provides no forecast for future purchases or confirmation that all $329 million of equipment is destined for xAI facilities.