SpaceX spending on Tesla Megapacks reaches $329M this year, fueling power build-out for xAI data centers

SpaceX has reportedly increased its purchases of Tesla’s Megapack battery systems, buying $329 million worth so far this year to support power requirements for xAI data centers, according to a Yahoo Finance report published Aug. 4.

Megapack is Tesla’s utility-scale energy storage product, designed to store electricity and deliver it when demand or generation fluctuates. For data center operators, large battery deployments can help manage peak load, improve power reliability, and potentially reduce the dependence on immediate grid supply during transient events.

The report frames the Megapack orders as part of a broader energy strategy around xAI’s expansion, with SpaceX acting as the buying entity tied to the data center projects. The implication is that the cost and lead time of battery capacity are being treated as key inputs to keeping data center build schedules on track.

Tesla’s role in this transaction is as the supplier of the Megapack systems, while SpaceX is positioned as the customer. The article does not, in the information available here, identify specific project sites, delivery timelines, or how much of the battery capacity has already been installed versus ordered.

It also does not detail whether the Megapacks are being integrated with on-site generation, grid interconnection upgrades, or other energy infrastructure. In past industry practice, battery installations at large facilities often complement power electronics and backup generation, but the exact configuration for these purchases is not described in the available material.

For Tesla, Megapack demand is part of a growing non-automotive business line that can be influenced by large contracts and multi-year deployment schedules. For SpaceX and xAI, securing electricity storage capacity can be a practical response to the realities of power availability, especially when data center growth outpaces grid expansion.

Still, important specifics remain unreported in the cited report, including whether the $329 million figure reflects signed contracts, equipment shipped, or revenue recognized, and whether it covers only Megapack systems or also related services and components.

As companies move from ordering to installing grid-scale battery capacity, investors and customers alike typically watch for delivery confirmations, commissioning milestones, and any disclosure in Tesla’s periodic filings about energy storage order timing. The next announcement to monitor is whether these reported purchases translate into publicly reported megawatt-hour deployments and whether Tesla highlights the customer or project scope in future updates.