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New Tesla Solar Roof variants spotted being tested near Fremont Factory

Credit: Gabeincal/YouTube

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It appears that Tesla is hard at work testing what could very well be the next variants of its flagship residential solar product, the Solar Roof. As could be seen in a recent flyover around Tesla’s Fremont facilities, the company seems to be testing some tiles with a wood-like appearance, as well as some that feature a similar shade to the “slate” tiles that Elon Musk unveiled back in 2016. 

A recent flyover of the Fremont Factory from drone operator Gabeincal revealed some notable activities happening in Tesla’s primary EV production site. This time around, the drone operator was able to capture some images of the refresh Model S and Model X at the Fremont Factory test track and one of the Giga Press machines in action. Tesla’s Kato Road facility, which hosts the company’s pilot production line for its 4680 cells, was reportedly full of employee cars as well. 

Credit: Gabeincal/YouTube

But amidst these activities, one thing that genuinely drew attention was the test houses that Tesla used for its Solar Roof tiles. The video showed three structures that seemed to be undergoing testing, each with a different type of Solar Roof. One appeared to have been fitted with some dark, smooth, or textured tiles; another with what seemed like simulated cedar tiles, and another with tiles that featured a slate-like shade. 

The cedar-like tiles in one of the test houses are particularly interesting considering that such a variant was not initially announced by Elon Musk during the Solar Roof’s unveiling back in 2016. During the tiles’ unveiling ceremony, Musk announced four variants that would eventually be available for ordering: a Smooth tile, a Textured tile, a curved Tuscan tile, and some stunning gray Slate tiles. So far, Tesla’s Solar Roof installations have only been comprised of Textured tiles. 

Tesla’s multiple Solar Roof variants. (Credit: Tesla)

Despite this, Tesla’s patents have suggested that the company is pursuing some new Solar Roof variants. One such patent was issued last March, and it described a way for Tesla to obscure, color match, and camouflage its Solar Roof in a way that makes the tiles almost indiscernible from traditional roofing materials. Tesla’s illustrations in the patent hinted at variants of the Solar Roof that are yet to be released, such as the Tuscan and Slate tiles. 

It would not be surprising if Tesla is now exploring Solar Roof variants beyond the initial four designs that were announced in late 2016. Cedar Solar Roofs would be a good expansion from the Textured tiles that the company is producing today, after all, as wood shingles have been used in colonial American homes for many years, partly due to their excellent insulation properties and durability. If Tesla does release a Cedar Solar Roof variant, it would not be surprising if it becomes a great seller among homeowners. 

Elon Musk has noted that the Solar Roof’s potential would likely be evident this 2021. “I think a future where we’ve got beautiful roofs generating energy that are tough and resilient and better in every way than a natural roof and alive with energy, that’s the future we want. Solar Roof is a killer product. This will become obvious next year,” Musk said in a previous earnings call. 

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Watch a recent drone flyover of Tesla’s Fremont facilities in the video below.

Don’t hesitate to contact us for news tips. Just send a message to tips@teslarati.com to give us a heads up.

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

Energy

Tesla launches first Virtual Power Plant in UK – get paid to use solar

Tesla has launched its first-ever Virtual Power Plant program in the United Kingdom.

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Credit: Tesla Energy | X

Tesla has launched its first-ever Virtual Power Plant program in the United Kingdom. This feature enables users of solar panels and energy storage systems to sell their excess energy back to the grid.

Tesla is utilizing Octopus Energy, a British renewable energy company that operates in multiple markets, including the UK, France, Germany, Italy, Spain, Australia, Japan, New Zealand, and the United States, as the provider for the VPP launch in the region.

The company states that those who enroll in the program can earn up to £300 per month.

Tesla has operated several VPP programs worldwide, most notably in California, Texas, Connecticut, and the U.S. territory of Puerto Rico. This is not the first time Tesla has operated a VPP outside the United States, as there are programs in Australia, Japan, and New Zealand.

This is its first in the UK:

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Tesla is not the only company that is working with Octopus Energy in the UK for the VPP, as it joins SolarEdge, GivEnergy, and Enphase as other companies that utilize the Octopus platform for their project operations.

It has been six years since Tesla launched its first VPP, as it started its first in Australia back in 2019. In 2024, Tesla paid out over $10 million to those participating in the program.

Tesla VPP program in California hits new capacity milestone

Participating in the VPP program that Tesla offers not only provides enrolled individuals with the opportunity to earn money, but it also contributes to grid stabilization by supporting local energy grids.

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Tesla Lathrop Megafactory celebrates massive Megapack battery milestone

The Tesla Megapack is the backbone of Tesla Energy’s battery deployments.

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Credit: Tesla Megapack/X

The Tesla Lathrop Megafactory recently achieved a new milestone. As per the official Tesla Megapack account on X, the Lathrop Megafactory has produced its 15,000th Megapack 2 XL battery.

15,000 Megapack Batteries

Tesla celebrated the milestone with a photo of the Lathrop Megafactory team posing with a freshly produced Megapack battery. To commemorate the event, the team held balloons that spelled out “15,000” as they posed for the photo.

The Tesla Megapack is the backbone of Tesla Energy’s battery deployments. Designed for grid-scale applications, each Megapack offers 3.9 MWh of energy and 1.9 MW of power. The battery is extremely scalable, making it perfect for massive energy storage projects.

https://twitter.com/Tesla_Megapack/status/1932578971700638203

More Megafactories

The Lathrop Megafactory is Tesla’s first dedicated facility for its flagship battery storage system. It currently stands as the largest utility-scale battery factory in North America. The facility is capable of producing 10,000 Megapack batteries every year, equal to 40 GWh of clean energy storage.

Thanks to the success of the Megapack, Tesla has expanded its energy business by building and launching the Shanghai Megafactory, which is also expected to produce 40 GWh of energy storage per year. The ramp of the Shanghai Megafactory is quite impressive, with Tesla noting in its Q1 2025 Update Letter that the Shanghai Megafactory managed to produce over 100 Megapack batteries in the first quarter alone.

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Tesla Energy’s Potential

During the first quarter earnings call, CEO Elon Musk stated that the Megapack is extremely valuable to the energy industry. 

“The Megapack enables utility companies to output far more total energy than would otherwise be the case… This is a massive unlock on total energy output of any given grid over the course of a year. And utility companies are beginning to realize this and are buying in our Megapacks at scale,” Musk said.

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Energy

Tesla Megapacks powers the xAI Colossus supercomputer

Tesla Megapacks step in to stabilize xAI’s Colossus supercomputer, replacing natural gas turbines. Musk’s ventures keep intertwining.

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(Credit: Tesla Megapack)

Tesla Megapack batteries will power the xAI Colossus supercomputer in Memphis to ensure power stability. The collaboration between Tesla and xAI highlights the synergy among Elon Musk’s ventures.

The artificial intelligence startup has integrated Tesla Megapacks to manage outages and demand surges, bolstering the facility’s reliability. The Greater Memphis Chamber announced that Colossus, recently connected to a new 150-megawatt electric substation, is completing its first construction phase. This transition addresses criticism from environmental justice groups over the initial use of natural gas turbines.

“The temporary natural gas turbines that were being used to power the Phase I GPUs prior to grid connection are now being demobilized and will be removed from the site over the next two months.

“About half of the operating turbines will remain operating to power Phase II GPUs of xAI until a second substation (#22) already in construction is completed and connected to the electric grid, which is planned for the Fall of 2025, at which time the remaining turbines will be relegated to a backup power role,” the Chamber stated.

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xAI’s rapid development of Colossus reflects its ambition to advance AI capabilities, but the project has faced scrutiny for environmental impacts. The shift to Megapacks and grid power aims to mitigate these concerns while ensuring operational continuity.

The Megapack deployment underscores the collaboration among Musk’s companies, including Tesla, SpaceX, Neuralink, and The Boring Company. Tesla appears to be the common link between all of Musk’s companies. For example, The Boring Company built a tunnel in Giga, Texas. In addition, Musk has hinted at a potential collaboration between the Tesla Optimus Bot and Neuralink. And from January 2024 to February 2025, xAI invested $230 million in Megapacks, per a Tesla filing.

Tesla Energy reported a 156% year-over-year increase in Q1 2025, deploying 10.4 GWh of storage products, including Megapacks and Powerwalls. Tesla’s plans for a new Megapack factory in Waller County, Texas, which is expected to create 1,500 jobs in the area, further signal its commitment to scaling energy solutions.

As xAI leverages Tesla’s Megapacks to power Colossus, the integration showcases Musk’s interconnected business ecosystem. The supercomputer’s enhanced stability positions xAI to drive AI innovation, while Tesla’s energy solutions gain prominence, setting the stage for broader technological and economic impacts.

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