TSLA Fear & Greed Index
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Tesla’s battery business: Megapack for power grids and data centres, Powerwall for homes. Tesla reports how much storage it deploys each quarter, but not how that splits between the two.
Gigawatt-hours of Megapack and Powerwall batteries Tesla deployed each quarter. The total swings with the timing of large Megapack projects, so the four-quarter total is the steadier guide.
Source: Tesla quarterly updates and production, deliveries and deployments releases. Consensus is the analyst average Tesla compiles before each release.
Tesla’s energy generation and storage segment, which also includes its small solar business. Results come out about three weeks after the deployment figures.
Tesla reports one storage number for both products. Its factory capacity and its Powerwall install milestones show roughly how the total divides.
Utility-scale batteries sold to power companies and developers, and increasingly to AI data centres. Megapack makes up the large majority of what Tesla deploys.
Home batteries, often paired with solar panels. Owners can join virtual power plants that pay them to send stored power to the grid at peak times.
Milestones Tesla announced.
AI data centres need enormous amounts of power, and their demand can jump within seconds. The data centre customer Tesla names is SpaceX, which merged with Elon Musk’s xAI in February 2026. Tesla has to disclose those sales because Musk runs both companies.
xAI’s battery near Memphis lets the data centre run off the grid for about four hours when the grid is strained. The local utility made that a condition of its power connection. Canary Media
Batteries can respond in under a second. That lets them cover sudden jumps in an AI cluster’s demand, so the data centre runs steadily and the grid and on-site generators are protected. TechCrunch
Wood Mackenzie says storage can add capacity faster than gas plants alone and can speed up power access for data centres stuck waiting for grid connections. Energy-Storage.News
On the Q2 2026 earnings call, Musk called power a major issue for AI and said that is why SpaceX has bought so many Megapacks for its data centres. Call transcript
The next dates that bring new energy figures. Expected dates can move.