SpaceX Ramps Up Tesla Megapack Purchases to $295M in Q2 to Power Its AI Data Centers

SpaceX Ramps Up Tesla Megapack Purchases for Expanding AI Operations

SpaceX significantly increased its investment in energy infrastructure during the second quarter of 2026, purchasing $295 million worth of Tesla Megapacks to support its rapidly expanding AI data centers1

1

. The transaction, disclosed in an SEC filing with the Securities and Exchange Commission, brings the company's half-year total spending on Tesla's battery energy storage systems to $329 million2

2

. Both SpaceX and Tesla are controlled by Elon Musk, who serves as CEO of each company, making these related-party transactions that appear on SpaceX's balance sheet as property, plant, and equipment.

How Tesla Megapacks Address Uneven Electricity Demand from AI Workloads

The Tesla Megapacks being deployed at SpaceX's facilities serve a critical function beyond simple backup power. AI workloads draw electricity unevenly, creating demand spikes that would otherwise trigger costly utility charges or strain on-site generation equipment2

2

. These containerized, utility-scale battery systems use lithium-ion or other battery cells to absorb these fluctuations, allowing for energy storage from all sources including fossil fuels and renewable and intermittent sources like solar and wind1

1

. Tesla's newer Megablocks combine four Megapacks around one transformer, helping AI data centers and utilities avoid blackouts while managing the irregular power consumption patterns inherent to machine learning operations.

SpaceX's Expanding AI Infrastructure at Colossus Data Centers

SpaceX's AI segment, which includes the Colossus and Colossus 2 facilities in the Greater Memphis area, expanded its nameplate compute capacity to 1.4 gigawatts by the end of the second quarter, up from 1.0 gigawatt in the first quarter2

2

. During SpaceX's second-quarter earnings call, Musk outlined ambitious targets for the company's AI infrastructure, aiming for approximately 20 gigawatts of power and cooling capacity by the end of next year, though he acknowledged some projects may slip and estimated the power plant level capacity would likely reach something close to 15 gigawatts2

2

. The AI segment posted $2.6 billion in revenue for the second quarter, up from $737 million in the same period a year earlier, driven by new cloud services agreements, while total AI capital expenditures for the quarter reached $15.8 billion2

2

.

Natural Gas Turbines and Community Concerns Over Emissions and Noise

While Tesla Megapacks provide energy storage and generation support, SpaceX has also installed and used dozens of natural gas turbines for power generation at the Colossus AI data centers1

1

. These turbines have sparked significant community concerns, with Greater Memphis residents complaining of smell, health problems, noise and air pollution1

1

. The emissions and noise from the turbines have led to community uproar and helped fuel a national backlash against data center developers. According to SpaceX's SEC filing, the NAACP has taken the company to federal court in Mississippi, arguing the turbines are operating without the necessary permits or pollution controls and asking the court to shut them down2

2

. These regulatory hurdles highlight the growing tension between AI infrastructure expansion and environmental considerations.

Competitive Landscape and Cross-Company Transactions

Tesla faces competition in the battery energy storage market from several major players. Top competitors, according to research by Wood Mackenzie, include China's Sungrow, BYD, and CATL, Korea's LG, and U.S.-based Fluence, among others1

1

. Despite these alternatives, SpaceX continues to source exclusively from Tesla for its Megapack needs. Tesla has sold approximately $890 million worth of vehicles and batteries to SpaceX and its subsidiary xAI since 20232

2

. SpaceX disclosed in its IPO filing that Tesla holds shares of SpaceX Class A common stock following the xAI merger, representing an ownership interest of less than 1% of total outstanding shares2

2

. Notably, no Tesla Cybertruck acquisitions appeared in SpaceX's first-half 2026 disclosures, though the company had spent $131 million on Cybertrucks at manufacturer's suggested retail price during 20252

2

.