SpaceX Has Bought $329M Worth of Tesla Megapacks So Far This Year

Overview

SpaceX has significantly ramped up its purchases of Tesla Megapacks in 2026, spending $329 million so far this year on the large-scale battery storage units. The buildout is tied to the power infrastructure needs of xAI, the artificial intelligence company founded by Elon Musk, which requires massive and reliable electricity supplies to run its data centers and train large language models.

What Are Tesla Megapacks?

Tesla Megapacks are utility-scale battery energy storage systems designed to store electricity and discharge it on demand. They are typically used by utilities, businesses, and increasingly by data center operators to stabilize power supply, smooth out demand spikes, and reduce reliance on the grid during peak load. For AI compute clusters, which draw enormous and continuous amounts of power, battery storage systems like the Megapack can help bridge gaps between grid capacity and the real-time energy demands of thousands of GPUs running around the clock.

Why SpaceX Is Buying on Behalf of xAI

The purchases highlight the increasingly intertwined nature of Elon Musk's business empire. SpaceX, xAI, and Tesla are separate companies, but transactions like this one show how resources and infrastructure are being shared or coordinated across the Musk ecosystem to support xAI's rapid data center expansion. Powering AI training clusters is one of the most capital-intensive parts of building competitive large language models, and energy storage is a critical bottleneck as demand for compute outpaces available grid capacity in many regions.

Why This Matters for the AI Industry

The scale of spending underscores a broader trend: AI companies are increasingly investing directly in energy infrastructure rather than relying solely on utility providers. As data centers for AI training and inference multiply, competition for power capacity has intensified, pushing companies to secure their own generation, storage, and grid-stabilization solutions. Purchases of this size also represent meaningful revenue for Tesla's energy storage division, which has grown into a significant business line alongside the company's core vehicle sales.

FAQ

What is xAI using the Megapacks for? The battery systems support power supply stability for xAI's data center operations, which run the compute-intensive workloads behind its AI models.

Is this spending separate from Tesla's vehicle business? Yes. Megapack sales fall under Tesla's energy generation and storage segment, distinct from its automotive division.

Does SpaceX use Megapacks for its own operations too? The reporting on this specific spending ties the purchases to xAI's infrastructure needs, reflecting how Musk's companies coordinate on large infrastructure investments.

Source

Originally published at techcrunch.com.

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