SpaceX Spends $329M on Tesla Megapacks in 2026 to Power xAI Data Centers
Summary
- • SpaceX spent $329M on Tesla Megapacks in 2026, including $295M in Q2 alone — a nearly 9× surge over Q1
- • Purchases likely support xAI data centers following SpaceX's acquisition of xAI earlier in 2026
- • Before the merger, xAI had separately bought $430M in Megapacks for its Colossus data center project
- • SpaceX also acquired $131M in Tesla Cybertrucks at MSRP as of December 2025, per regulatory filing
Details
$329M Megapack spend in 2026 YTD
SpaceX spent $295M in Q2 and $34M in Q1, totaling $329M year-to-date — a nearly 9× quarter-over-quarter surge, per the company's earnings report
xAI's pre-merger Megapack history
Before merging with SpaceX, xAI separately purchased $430M of Tesla Megapacks for its Colossus data center project — meaning total Musk-entity Megapack spend in this cycle exceeds $750M
Musk empire financial loop
SpaceX (CEO Musk) buys from Tesla (chair Musk) to power xAI data centers (now owned by SpaceX) — a closed-loop related-party supply chain across Musk's corporate entities
Why batteries matter for AI data centers
AI training and inference cause GPU power demand to ramp sharply up and down; Megapacks buffer these spikes, reducing utility demand charges and ensuring consistent uptime without depending solely on grid supply
Natural gas + battery hybrid power model
xAI uses natural gas for baseline data center power — including allegedly unpermitted turbines at a Mississippi site near Colossus — while batteries handle peak shaving, backup, and demand smoothing
$131M Tesla Cybertruck acquisitions
SpaceX also acquired $131M of Tesla Cybertrucks at MSRP as of December 2025, per regulatory filing — another significant related-party purchase across Musk entities
Tesla energy division revenue impact
SpaceX's $329M Megapack spend represents a material and growing revenue stream for Tesla's energy division, distinct from its automotive business and growing as AI data center demand scales
Source: TechCrunch AI reporting on SpaceX Q2 2026 earnings and regulatory filing.
What This Means
SpaceX's $329M in Tesla Megapack purchases in 2026 — nearly 9× its Q1 spend by Q2 — reveals how rapidly xAI's data center infrastructure is expanding following SpaceX's acquisition. The financial flows illustrate the unusual structure of Elon Musk's corporate empire, where SpaceX, Tesla, and xAI function as an integrated economic ecosystem with significant related-party transactions. For AI observers, the spend underscores that battery storage has become a major cost center for frontier AI compute infrastructure, and that energy demands are scaling faster than many anticipated. For Tesla, it represents a growing guaranteed revenue stream from within Musk's own corporate network.