Tesla has unveiled two new energy storage products: Megapack 3, the latest generation of its utility-scale energy storage system, and Megablock, which integrates Megapack 3 with transformers and switchgear.
When Tesla unveiled its next-generation energy storage systems—Megapack 3 and the new Megablock—on September 15, 2025, it marked a pivotal moment in the evolution of utility-scale battery energy storage.
Yet overall, Tesla remains optimistic about the storage business. “Despite these challenges, as AI infrastructure drives rapid load growth, we see opportunities for our energy storage products to stabilize the grid, shift energy when it is needed most and provide additional power capacity,” the company said in its earnings report.
Tesla's energy storage revenue surged to roughly $11 billion over the past 12 months, accounting for 12% of its total revenue, while deployments jumped 83% to nearly 38 GWh . For context, that's enough energy to power over 3 million homes for four hours at peak usage.
With an initial annual production capacity of 10,000 units, or roughly 40 gigawatt-hours of energy storage, this Megafactory is set to significantly contribute to Tesla''s global energy storage
Tesla Energy reported record storage deployments and profit margins in 2025, with production expansion in the United States and China expected to push output capacity above 130
Tesla said record Megapack deployments generated $1.1 billion in gross profit for its energy generation and storage business in the fourth quarter, marking a fifth consecutive record-setting quarter.
Tesla''s Megapack is officially making its mark on China''s energy landscape. The groundbreaking RMB 4 billion grid-scale storage project in Shanghai''s Lin-gang Special Area,
Explore how Tesla''s pivot toward large-scale energy storage and proprietary software could transform the company into a multi-billion dollar energy giant.
Megapack is a utility-scale battery that provides reliable energy storage, to stabilize the grid and prevents outages. Find out more about Megapack.
Tesla''s energy division set a new annual storage deployment record of 46.7 GWh in 2025, driving revenue up 26.6% to $12.8 billion. With improved 29.8% margins, Tesla plans Megapack 3,
Tesla''s new Megapack 3 and Megablock solutions promise to revolutionize utility-scale energy storage by boosting capacity to 5 MWh per unit, slashing soft costs, and enabling 1 GWh
Energy storage products like the Megapack, Megablock, and Powerwall drove nearly a quarter of Tesla''s gross profit.
Tesla has unveiled two new energy storage products: Megapack 3, the latest generation of its utility-scale energy storage system, and Megablock, which integrates Megapack 3 with
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