SpaceX has purchased another $269 million worth of Tesla Megapacks, according to a new filing revealed on June 3. The transaction, which closed in April 2026, comes on top of a $430 million Megapack order placed by SpaceX and xAI last year — bringing the total inter-company spend on Tesla's grid-scale battery systems to nearly $700 million across two years.
The scale of these purchases underscores how central Tesla's energy storage business has become to the broader Elon Musk enterprise. xAI's data centers — which require enormous, reliable power capacity to run AI workloads around the clock — are among the most power-hungry facilities being built right now. Megapacks, which can store and dispatch megawatt-hours of electricity at utility scale, are a natural fit for stabilizing the grid connections feeding those sites.
For Tesla's Energy division, this is a meaningful signal. The segment has been one of the company's fastest-growing revenue contributors, and a repeat nine-figure purchase from a related party suggests the product is performing well enough in the field to justify continued expansion. It also points to a deepening infrastructure dependency between SpaceX's AI ambitions and Tesla's manufacturing output — a relationship that now has nearly $700 million in documented transactions behind it.
No details on delivery timelines or installation locations were included in the filing, but given the April purchase date and Megapack lead times, deployments could begin appearing at xAI or SpaceX facilities later this year. For Tesla Energy watchers, the next quarterly earnings call will likely offer more color on how these orders are flowing through the backlog.
Sarah focuses on Tesla Energy, SpaceX missions, and the broader Musk AI portfolio. Former data analyst in clean energy. Based in San Francisco.
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