News
Tesla’s matte black Semi prototype makes rare appearance in Kettleman City Supercharger
After staying under the radar for the past few months, Tesla’s matte black Semi prototype has been spotted on US roads once more. This time around, the all-electric long hauler was sighted pulling a trailer at the 40-stall Kettleman City Supercharger, located between San Francisco and Los Angeles.
The matte black Tesla Semi prototype was photographed by Tesla enthusiast James Douma, who noted that he spotted the vehicle on Wednesday afternoon. In a conversation with Teslarati, James stated that the vehicle seemed to be traveling alone, as the truck only had one person inside. Such an observation is quite interesting, considering that the silver Semi test mule traveling across the United States is usually accompanied by a team of engineers.
The Tesla enthusiast also remarked that he was informed by the staff of the Kettleman City Supercharger that it was the first time the matte black Semi prototype visited the location. The silver Semi test mule, on the other hand, has reportedly visited the site on four different occasions. The matte black Semi did not stay very long in the Kettleman site on Wednesday, though, as the vehicle promptly left the location soon after the photos were taken.
- Tesla’s matte black Semi prototype makes a rare appearance at the Kettleman City Supercharger. (Photo: James Douma)
- Tesla’s matte black Semi prototype makes a rare appearance at the Kettleman City Supercharger. (Photo: James Douma)
Tesla’s matte black Semi prototype makes a rare appearance at the Kettleman City Supercharger. (Photo: James Douma)
Sightings of the Tesla Semi during recent months have featured the silver test mule, which has been spotted in multiple states across the US. The matte black Semi, which also made an appearance at the vehicle’s unveiling back in November 2017, was last seen in April as it was being transported on a trailer heading east into I-80 in the Des Moines, IA area, near the headquarters of Ruan Transportation Management Systems, a reservation holder for the all-electric truck.
Prior to that, the matte black Semi was sighted a couple of times with its silver sibling, as the vehicles transported cargo between Tesla’s Fremont factory and Gigafactory 1 in Nevada. The last sighting of the matte black truck traveling alone was back in January, when it was filmed driving down a street in Sunnyvale, CA. While the electric car maker has not provided a reason behind the vehicle’s absence during the past few months, it is nonetheless refreshing to the see sleek prototype back on the roads once more.
- Tesla’s matte black Semi prototype makes a rare appearance at the Kettleman City Supercharger. (Photo: James Douma)
- Tesla’s matte black Semi prototype makes a rare appearance at the Kettleman City Supercharger. (Photo: James Douma)
- Tesla’s matte black Semi prototype makes a rare appearance at the Kettleman City Supercharger. (Photo: James Douma)
Tesla’s matte black Semi prototype makes a rare appearance at the Kettleman City Supercharger. (Photo: James Douma)
The Tesla Semi has the potential to be the company’s most disruptive vehicle to date. Being designed to compete in the highly-competitive trucking industry, the Semi is equipped with several features that make it a viable and preferable alternative to diesel-powered vehicles. The Semi is propelled by four Model 3-derived electric motors that provide instant torque, allowing the Semi to go from 0-60 mph in 5 seconds flat without a trailer. The vehicle was also announced with a range of either 300 miles or 500 miles per charge, though Elon Musk later noted that truck’s long-range variant would have closer to 600 miles of range per charge.
The Tesla Semi is set to be supported by a network of Megachargers, which would be capable of replenishing 400 miles of range in as little as 30 minutes of charging. Unlike the Supercharger Network, which has a power output of roughly 120 kW, speculations are high that Tesla’s Megacharger will see around ten times the power levels. As Tesla conducts road tests of the Semi, though, the company has been adopting a temporary charging solution for the vehicle, using a series of Supercharger stalls connected to a hub, which is, in turn, connected to the all-electric truck.
Energy
Tesla Energy gains UK license to sell electricity to homes and businesses
The license was granted to Tesla Energy Ventures Ltd. by UK energy regulator Ofgem after a seven-month review process.
Tesla Energy has received a license to supply electricity in the United Kingdom, opening the door for the company to serve homes and businesses in the country.
The license was granted to Tesla Energy Ventures Ltd. by UK energy regulator Ofgem after a seven-month review process.
According to Ofgem, the license took effect at 6 p.m. local time on Wednesday and applies to Great Britain.
The approval allows Tesla’s energy business to sell electricity directly to customers in the region, as noted in a Bloomberg News report.
Tesla has already expanded similar services in the United States. In Texas, the company offers electricity plans that allow Tesla owners to charge their vehicles at a lower cost while also feeding excess electricity back into the grid.
Tesla already has a sizable presence in the UK market. According to price comparison website U-switch, there are more than 250,000 Tesla electric vehicles in the country and thousands of Tesla home energy storage systems.
Ofgem also noted that Tesla Motors Ltd., a separate entity incorporated in England and Wales, received an electricity generation license in June 2020.
The new UK license arrives as Tesla continues expanding its global energy business.
Last year, Tesla Energy retained the top position in the global battery energy storage system (BESS) integrator market for the second consecutive year. According to Wood Mackenzie’s latest rankings, Tesla held about 15% of global market share in 2024.
The company also maintained a dominant position in North America, where it captured roughly 39% market share in the region.
At the same time, competition in the energy storage sector is increasing. Chinese companies such as Sungrow have been expanding their presence globally, particularly in Europe.
Elon Musk
Elon Musk shares big Tesla Optimus 3 production update
According to Musk, Tesla is in the final stages of completing Optimus 3, which he described as one of the world’s most advanced humanoid robots.
Tesla CEO Elon Musk has stated that production of Optimus 3 could begin this summer. Musk shared the update in his interview at the Abundance Summit.
According to Musk, Tesla is in the final stages of completing Optimus 3, which he described as one of the world’s most advanced humanoid robots.
“We’re in the final stages of completion of Optimus 3, which is really going to be by far the most advanced robot in the world. Nothing’s even close. In fact, I haven’t even seen demos of robots that are as good as Optimus 3,” Musk said.
He also set expectations on the pace of Optimus 3’s production ramp, stating that the initial volumes of the humanoid robot will likely be very low. Musk did, however, also state that high production rates for Optimus 3 should be possible in 2027.
“I think we’ll start production on Optimus 3 this summer, but very slow at first, like sort of this classic S-curve ramp of manufacturing units versus time. And then, probably reach high volume production around summer next year,” he said.
Interestingly enough, the CEO hinted that Tesla is looking to iterate on the robot quickly, potentially releasing a new Optimus design every year.
“We’ll have Optimus 4 design complete next year. We’ll try to release a new robot design every year,” Musk stated.
Tesla has already outlined broader plans for scaling Optimus production beyond its first manufacturing line. Musk previously stated that Optimus 4 will be built at Gigafactory Texas at significantly higher production volumes.
Initial production lines for the robot are expected to be located at Tesla’s Fremont Factory, where the company plans to establish a line capable of producing up to 1 million robots per year.
A larger production ramp is expected to occur at Gigafactory Texas, where Musk has previously suggested could eventually support production of up to 10 million robots per year.
“We’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk said previously.
The comments suggest that while Optimus 3 will likely begin production at Fremont, Tesla’s larger-scale manufacturing push could arrive with Optimus 4 at Gigafactory Texas.
Elon Musk
Tesla showcases Optimus humanoid robot at AWE 2026 in Shanghai
Tesla’s humanoid robot was presented as part of the company’s exhibit at the Shanghai electronics show.
Tesla showcased its Optimus humanoid robot at the 2026 Appliance & Electronics World Expo (AWE 2026) in Shanghai. The event opened Thursday and featured several Tesla products, including the company’s humanoid robot and the Cybertruck.
The display was reported by CNEV Post, citing information from local media outlet Cailian and on-site staff at the exhibition.
Tesla’s humanoid robot was presented as part of the company’s exhibit at the Shanghai electronics show. On-site staff reportedly stated that mass production of the robot could begin by the end of 2026.
Tesla previously indicated that it plans to manufacture its humanoid robots at scale once production begins, with its initial production line in the Fremont Factory reaching up to 1 million units annually. An Optimus production line at Gigafactory Texas is expected to produce 10 million units per year.
Tesla China previously shared a teaser image on Weibo showing a pair of highly detailed robotic hands believed to belong to Optimus. The image suggests a design with finger proportions and structures that closely resemble those of a human hand.
Robotic hands are widely considered one of the most difficult engineering challenges in humanoid robotics. For a system like Optimus to perform complex real-world tasks, from factory work to household activities, the robot would require highly advanced dexterity.
Elon Musk has previously stated that Optimus has the capability to eventually become the first real-world example of a Von Neumann machine, a self-replicating system capable of building copies of itself, even on other planets. “Optimus will be the first Von Neumann machine, capable of building civilization by itself on any viable planet,” Musk wrote in a post on X.




