SpaceX buys $295 million in Tesla Megapack batteries in Q2, filings show

SpaceX increased its buying of Tesla Megapack battery energy storage systems by $295 million in the second quarter, according to a report published Thursday that cited regulatory filings. The purchases are framed as support for power requirements tied to artificial-intelligence data centers.

The report said the latest procurement brings SpaceX’s spending on Tesla storage systems to $329 million for the first half of the year. That implies the second-quarter increase made up the majority of the six-month total, though the report does not break out how much was spent in the first quarter versus Q2 beyond the aggregate figure.

Megapack is Tesla’s utility-scale battery, built to store electricity and discharge it back to the grid when demand is high or when renewable generation is intermittent. In recent years, companies have increasingly leaned on battery storage to manage volatility in power supply, particularly where new loads such as data centers are expanding.

In the report’s framing, SpaceX’s battery spending is connected to AI data center buildouts. Data centers tend to require large, reliable electrical service, and they can also face constraints related to grid timing, permitting, and interconnection. Battery storage can be used to smooth power delivery and help support operations during peak demand or grid disturbances.

The report did not provide further commercial details, such as whether the batteries were purchased outright or under a specific contract structure, the delivery timeline, or how much of SpaceX’s storage deployment is already operational versus in construction. It also did not disclose which sites or regions would receive the storage systems.

Tesla, meanwhile, has built a business around selling and deploying grid-scale storage products, with Megapack positioned as a centerpiece of its energy generation and storage segment. Large orders from industrial customers are significant for revenue visibility because storage deployments often involve multi-step processes that can stretch across quarters.

For investors and the market, the headline figure matters less for what it says about Tesla’s near-term sales than for what it suggests about customer demand for stored power. If SpaceX and other industrial users continue to treat battery storage as a core part of infrastructure planning for AI-related workloads, it could reinforce the broader shift toward firming and buffering electricity supply.

Still, key details remain unclear from the report itself. Without access to the underlying filing text and associated schedules, it is not possible to confirm the exact agreement terms, the breakdown by battery system size or delivery date, or whether the spending reflects new orders only, or also includes work completed or reclassified from earlier commitments. It is also not confirmed how directly SpaceX’s battery spending will translate into Tesla revenue timing. Markets will likely wait for more complete disclosures to understand the scope and pace of deliveries.