SpaceX Bought $329M in Tesla Megapacks in First Half of 2026

SpaceX spent $329 million on Tesla Megapack batteries in H1 2026, with $295 million in Q2 alone, per its August 4 earnings report. The battery arrays stabilize power for xAI data centers, where GPU demand swings between training and inference. Google pays $920 million monthly for that compute, with a September 30 delivery deadline.