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The fastest-growing part of Tesla’s business isn’t selling cars

The lesser-known energy generation and storage business was juiced up in Q3, delivering a 31% gross profit margin

Elon Musk is a lot richer this morning than he was last night, as Tesla stock is soaring in early trading after reporting better-than-expected profit margins, despite a miss on revenue, in its Q3 earnings.

The closely watched gross margin came in at 19.8%, way ahead of expectations for a print of 16.8%, as investors get over the fact that revenue from actually selling cars has slipped into neutral, rising just over 1% in the last year.

Externally, the company is increasingly billing itself as anything but a car company, with robotaxis and humanoids key to its future (maybe). But, while those didn’t have any explicit impact on the company’s actual numbers this quarter, what is firing on all cylinders is the company’s energy-generation and storage business, which reported growth north of 50%, by far the best of Tesla’s divisions.

Not only is the energy-generation and storage business growing rapidly, but on a relative basis it’s also significantly more profitable for Tesla than selling cars: the company reported a 31% gross profit margin from its energy efforts, nearly double the 16% from automotive sales. It’s worth noting, of course, that nothing beats the $739 million worth of pure profit from automotive regulatory credits.

The company’s energy business ranges from Megapack, a product aimed at large-scale utilities deployment, to products geared for end customers in smaller households like the Tesla Powerwall, and it also sells and installs solar-power systems.

Tesla Energy Generation Revenue
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Demand for Tesla’s energy-storage solutions is expected to only expand, especially with growing installations of renewable-energy sources like wind and solar, which can be volatile and require battery solutions to store the excess energy when its not blowing hard enough or sunny enough. The outlook for EV charging services like Tesla’s Supercharger is also bright, with America’s EV infrastructure struggling to meet demands and the ambitious roadmap to 2030.

CEO Elon Musk also said on an earnings call that car sales would likely get back to growth next year, predicting that Tesla’s deliveries could rise 20% to 30% next year. Of course, many Elon Musk predictions haven’t come true.

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OpenAI’s ARR reached over $20 billion in 2025, CFO says

Sam Altman’s $500 billion artificial intelligence behemoth hit a major financial milestone last year, according to a new blog post over the weekend from OpenAI CFO Sarah Friar, as the company confirmed it had hit a more than $20 billion annual revenue run rate at the end of 2025.

Elsewhere in the blog post, Friar spent time addressing the company’s shifting goals, referencing plans to “close the distance between where intelligence is advancing and how individuals, companies, and countries actually adopt and use it.” As has become customary in the AI company press release genre, the CFO was also keen to tout the unending growth of the business, writing:

  • Both our Weekly Active User (WAU) and Daily Active User (DAU) figures continue to produce all-time highs. This growth is driven by a flywheel across compute, frontier research, products, and monetization.

  • Compute grew 3X year over year or 9.5X from 2023 to 2025: 0.2 GW in 2023, 0.6 GW in 2024, and ~1.9 GW in 2025.

And, perhaps most importantly for current backers and those keeping an eye on the private company before its rumored mega IPO:

  • Revenue followed the same curve growing 3X year over year, or 10X from 2023 to 2025: $2B ARR in 2023, $6B in 2024, and $20B+ in 2025. This is never-before-seen growth at such scale.

That latest figure has certainly set tongues in the tech world wagging, just as the company announced it would begin rolling out ads to free and ChatGPT Go users. It also puts the chatbot giant a fair way ahead of competitors like Anthropic, the company behind Claude.

OpenAI Anthropic ARR race
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Elsewhere in the blog post, Friar spent time addressing the company’s shifting goals, referencing plans to “close the distance between where intelligence is advancing and how individuals, companies, and countries actually adopt and use it.” As has become customary in the AI company press release genre, the CFO was also keen to tout the unending growth of the business, writing:

  • Both our Weekly Active User (WAU) and Daily Active User (DAU) figures continue to produce all-time highs. This growth is driven by a flywheel across compute, frontier research, products, and monetization.

  • Compute grew 3X year over year or 9.5X from 2023 to 2025: 0.2 GW in 2023, 0.6 GW in 2024, and ~1.9 GW in 2025.

And, perhaps most importantly for current backers and those keeping an eye on the private company before its rumored mega IPO:

  • Revenue followed the same curve growing 3X year over year, or 10X from 2023 to 2025: $2B ARR in 2023, $6B in 2024, and $20B+ in 2025. This is never-before-seen growth at such scale.

That latest figure has certainly set tongues in the tech world wagging, just as the company announced it would begin rolling out ads to free and ChatGPT Go users. It also puts the chatbot giant a fair way ahead of competitors like Anthropic, the company behind Claude.

OpenAI Anthropic ARR race
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