Tesla‘s energy storage business is emerging as the fastest-growing part of the company, with stationary battery systems like Megapack and Powerwall driving sharply increased revenue and profitability even as EV sales slow and overall company earnings face pressure. In 2025, Tesla deployed a record 46.7 gigawatt-hours of energy storage products, up about 48% year-over-year, helping the company’s energy generation and storage revenues climb roughly 26.5% to $12.8 billion and contribute nearly a quarter of gross profit. Megapack alone generated about $1.1 billion of a $3.8 billion gross profit for the storage segment in its most profitable quarter, with gross margins on energy products approaching 30%—nearly double the margins Tesla earns on cars and trucks. Sources note that deferred revenue from ongoing energy storage projects is set to nearly double in the coming year, signaling continued demand for grid-scale battery systems and related installations even as competition grows and residential tax credits phase out. The strength of this segment underscores a strategic shift within Tesla toward energy infrastructure and services as a core long-term growth driver.
Sources
https://techcrunch.com/2026/01/29/teslas-energy-storage-business-is-growing-faster-than-any-other-part-of-the-company/
https://www.energy-storage.news/teslas-energy-storage-business-growing-like-wildfire-musk-says/
https://www.teslarati.com/tesla-price-target-raised-490-canaccord-strong-deliveries-energy-growth/
Key Takeaways
• Tesla’s energy storage segment saw record deployments and revenue growth in 2025, outpacing other divisions.
• Stationary batteries like Megapack and Powerwall are highly profitable, with gross margins significantly above automotive products.
• Continued demand and backlog of energy storage projects suggest long-term expansion potential despite EV sales headwinds.
In-Depth
Tesla’s energy storage division is quietly becoming one of the most important engines of growth for the company even as its core electric vehicle business navigates slowing sales and margin pressures. According to recent reporting, 2025 marked a milestone year for Tesla’s energy storage systems, with deployments reaching a record 46.7 gigawatt-hours globally, a roughly 48 percent increase over the prior year. That surge in volume helped lift revenue for Tesla’s energy generation and storage segment to around $12.8 billion, representing one of the company’s strongest areas of growth at a time when overall revenue and earnings have faced headwinds. Stationary battery products like the utility-scale Megapack and residential Powerwall units are major contributors to this trend, with Megapack batteries alone generating about $1.1 billion of the $3.8 billion gross profit reported for the storage business in just one quarter. Those gross margins—nearly 30 percent—are materially higher than the margins Tesla earns on its automotive products, highlighting the attractiveness of energy infrastructure revenue for investors and the company alike.
Underlying this growth is a shift in demand from traditional vehicle sales toward energy infrastructure that supports renewable power integration, grid stabilization, backup power services, and large-scale storage projects for utilities and commercial customers. Even as tax credits for residential storage like Powerwall phase out under recent legislation, the commercial and utility segments remain eligible for incentives, which helps sustain demand for big stationary battery installations. Tesla also reported a significant increase in deferred revenue from ongoing energy storage contracts, suggesting a strong pipeline of future installations that could further boost revenue in the years ahead.
This evolution underscores a broader strategic pivot within Tesla toward diversification beyond automobiles, leveraging its battery technology not just in cars but in supporting the electricity grid of the future. By focusing on energy storage systems with strong margins and broad market need, Tesla positions itself to benefit from accelerating renewable energy integration and expanding demand for reliable grid-scale storage. While the EV market evolves, this segment presents a compelling growth avenue that supports the company’s long-term financial resilience and strategic diversification.