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Musk defends SolarCity merger: $500M cash to Tesla, strength of $1B raised
Tesla presented more financial information related to its pending acquisition of SolarCity to investors late Tuesday after the closing bell. Details were revealed through a comprehensive blog post published on the company’s site. Here are some of the the important points covered.
- SolarCity is expected to add more than a $500 million in cash to Tesla’s balance sheet over the next 3 years.
- SolarCity has transitioned to a cash or purchase finance model instead of a leasing model. This allows the company to bring more money in the door upfront rather than waiting for lease payments to come in over 20 years.
- SolarCity has arranged for nearly $1 billion in financing for its business in 2016 alone.
- Solar City currently does business in less than half of all states. Tesla is a global company with a much greater marketing territory.
- Combining the companies will create efficiencies that create cost savings of nearly $150 million a year.
During the question and answer session with analysts Tuesday afternoon, Elon has several interesting things to say. He prodded the doubters by saying that those who have been predicting a bad outcome for Tesla Motors have been wrong 100% of the time so far. He said their “batting average is zero” and asked why anyone would pay attention to people with such a dismal track record.
Referring to the fact that SolarCity already has a customer base of 300,000 installed solar systems, Musk asked people to consider the significant upsell opportunities that base represents. He joked that what people often see as counterintuitive turns out to be perfectly logical once they fully understand the concept. How is it possible that the same people can be against something one moment and then claim it to be the obvious solution the next, he mused?
For instance, he pointed out that there are more than 150 million roofs in the North American market alone. That means there is an enormous business opportunity for the solar roof products unveiled last week. Musk seemed baffled that more people don’t grasp the size of the market and the profit potential it offers.
Talking further about the solar roof, Elon downplayed its cost, saying the glass for the solar tiles cost next to nothing to manufacture. “Glass is basically sand,” he said. Even the micro-louvers that give the tiles their distinctive appearance when viewed from below are made of plastic. Very tough plastic, to be sure, but only slightly more expensive than glass.
To him, it seems obvious that people will clamor for the solar roof product. Others have tried to make a solar roof before, but Elon asked coyly if anyone had ever seen one that was attractive. He said none of them were appealing enough to go on his own house and wondered aloud why no one had come with a solar roof product before that is as attractive as the Tesla offering.
Finally, Musk was asked, if the SolarCity merger was not approved, would Tesla offer solar products from other companies in its stores? He scoffed at the idea. Would Apple offer cell phones from Samsung and other manufacturers in its stores? He seemed to think the idea was preposterous.
Elon is clearly committed to the merger with SolarCity. He even considers it pretty much a no brainer. Despite that, Tesla stock has dropped considerably this week after a temporary pop in the stock following the solar roof reveal. The company stock is trading -1.31% after hours following today’s announcement.
If you’re considering solar for your home or business, we encourage you to get a solar cost estimate first, based on your monthly utility bill and location. The service is being provided by an affiliate partner and fan to Teslarati.
Elon Musk
Elon Musk and Tesla AI Director share insights after empty driver seat Robotaxi rides
The executives’ unoccupied tests hint at the rapid progress of Tesla’s unsupervised Robotaxi efforts.
Tesla CEO Elon Musk and AI Director Ashok Elluswamy celebrated Christmas Eve by sharing personal experiences with Robotaxi vehicles that had no safety monitor or occupant in the driver’s seat. Musk described the system’s “perfect driving” around Austin, while Elluswamy posted video from the back seat, calling it “an amazing experience.”
The executives’ unoccupied tests hint at the rapid progress of Tesla’s unsupervised Robotaxi efforts.
Elon and Ashok’s firsthand Robotaxi insights
Prior to Musk and the Tesla AI Director’s posts, sightings of unmanned Teslas navigating public roads were widely shared on social media. One such vehicle was spotted in Austin, Texas, which Elon Musk acknowleged by stating that “Testing is underway with no occupants in the car.”
Based on his Christmas Eve post, Musk seemed to have tested an unmanned Tesla himself. “A Tesla with no safety monitor in the car and me sitting in the passenger seat took me all around Austin on Sunday with perfect driving,” Musk wrote in his post.
Elluswamy responded with a 2-minute video showing himself in the rear of an unmanned Tesla. The video featured the vehicle’s empty front seats, as well as its smooth handling through real-world traffic. He captioned his video with the words, “It’s an amazing experience!”
Towards Unsupervised operations
During an xAI Hackathon earlier this month, Elon Musk mentioned that Tesla owed be removing Safety Monitors from its Robotaxis in Austin in just three weeks. “Unsupervised is pretty much solved at this point. So there will be Tesla Robotaxis operating in Austin with no one in them. Not even anyone in the passenger seat in about three weeks,” he said. Musk echoed similar estimates at the 2025 Annual Shareholder Meeting and the Q3 2025 earnings call.
Considering the insights that were posted Musk and Elluswamy, it does appear that Tesla is working hard towards operating its Robotaxis with no safety monitors. This is quite impressive considering that the service was launched just earlier this year.
Elon Musk
Starlink passes 9 million active customers just weeks after hitting 8 million
The milestone highlights the accelerating growth of Starlink, which has now been adding over 20,000 new users per day.
SpaceX’s Starlink satellite internet service has continued its rapid global expansion, surpassing 9 million active customers just weeks after crossing the 8 million mark.
The milestone highlights the accelerating growth of Starlink, which has now been adding over 20,000 new users per day.
9 million customers
In a post on X, SpaceX stated that Starlink now serves over 9 million active users across 155 countries, territories, and markets. The company reached 8 million customers in early November, meaning it added roughly 1 million subscribers in under seven weeks, or about 21,275 new users on average per day.
“Starlink is connecting more than 9M active customers with high-speed internet across 155 countries, territories, and many other markets,” Starlink wrote in a post on its official X account. SpaceX President Gwynne Shotwell also celebrated the milestone on X. “A huge thank you to all of our customers and congrats to the Starlink team for such an incredible product,” she wrote.
That growth rate reflects both rising demand for broadband in underserved regions and Starlink’s expanding satellite constellation, which now includes more than 9,000 low-Earth-orbit satellites designed to deliver high-speed, low-latency internet worldwide.
Starlink’s momentum
Starlink’s momentum has been building up. SpaceX reported 4.6 million Starlink customers in December 2024, followed by 7 million by August 2025, and 8 million customers in November. Independent data also suggests Starlink usage is rising sharply, with Cloudflare reporting that global web traffic from Starlink users more than doubled in 2025, as noted in an Insider report.
Starlink’s momentum is increasingly tied to SpaceX’s broader financial outlook. Elon Musk has said the satellite network is “by far” the company’s largest revenue driver, and reports suggest SpaceX may be positioning itself for an initial public offering as soon as next year, with valuations estimated as high as $1.5 trillion. Musk has also suggested in the past that Starlink could have its own IPO in the future.
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NVIDIA Director of Robotics: Tesla FSD v14 is the first AI to pass the “Physical Turing Test”
After testing FSD v14, Fan stated that his experience with FSD felt magical at first, but it soon started to feel like a routine.
NVIDIA Director of Robotics Jim Fan has praised Tesla’s Full Self-Driving (Supervised) v14 as the first AI to pass what he described as a “Physical Turing Test.”
After testing FSD v14, Fan stated that his experience with FSD felt magical at first, but it soon started to feel like a routine. And just like smartphones today, removing it now would “actively hurt.”
Jim Fan’s hands-on FSD v14 impressions
Fan, a leading researcher in embodied AI who is currently solving Physical AI at NVIDIA and spearheading the company’s Project GR00T initiative, noted that he actually was late to the Tesla game. He was, however, one of the first to try out FSD v14.
“I was very late to own a Tesla but among the earliest to try out FSD v14. It’s perhaps the first time I experience an AI that passes the Physical Turing Test: after a long day at work, you press a button, lay back, and couldn’t tell if a neural net or a human drove you home,” Fan wrote in a post on X.
Fan added: “Despite knowing exactly how robot learning works, I still find it magical watching the steering wheel turn by itself. First it feels surreal, next it becomes routine. Then, like the smartphone, taking it away actively hurts. This is how humanity gets rewired and glued to god-like technologies.”
The Physical Turing Test
The original Turing Test was conceived by Alan Turing in 1950, and it was aimed at determining if a machine could exhibit behavior that is equivalent to or indistinguishable from a human. By focusing on text-based conversations, the original Turing Test set a high bar for natural language processing and machine learning.
This test has been passed by today’s large language models. However, the capability to converse in a humanlike manner is a completely different challenge from performing real-world problem-solving or physical interactions. Thus, Fan introduced the Physical Turing Test, which challenges AI systems to demonstrate intelligence through physical actions.
Based on Fan’s comments, Tesla has demonstrated these intelligent physical actions with FSD v14. Elon Musk agreed with the NVIDIA executive, stating in a post on X that with FSD v14, “you can sense the sentience maturing.” Musk also praised Tesla AI, calling it the best “real-world AI” today.