Energy
Tesla Solar Roof is becoming a legitimate bargain against high-end roofs + solar
Tesla took a while before it was able to start a serious ramp of its Solar Roof tiles, but it appears that the wait will be worth it. As the electric car maker continues to expand its Solar Roof installations in the United States, it is starting to become evident that the aesthetically-pleasing solar shingles are a bargain in its class. At its current prices, Tesla’s Solar Roof presents savings compared to high-end roof options plus a traditional solar system.
The Tesla Solar Roof is actually one of the least expensive in its class of building-integrated PV options. While it’s true that the Solar Roof’s competitors are fewer than, say, the Model 3’s rivals in the EV segment, the flagship shingles do have some competition. These include DeSol’s Power Tiles, as well as the Luma Solar Tiles, both of whom adopt the same concept as the Tesla Solar Roof. The Solar Roof undercuts both competitors in price.
The Tesla Solar Roof is estimated to cost about $2.11 per installed watt, as noted by Green Building Advisor. This is far more affordable than the price of the DeSol Power Tiles, which stand at about $7 per installed watt. Even the Luma Solar Tiles, which are closer in appearance to Tesla’s Solar Roof V3, command a price of about $4.50 per installed watt. But this is not all, as the Solar Roof could be a reasonable alternative to a setup that involves traditional roofing materials and conventional solar panels as well.
A rough comparison outlined in a previous webinar from Solar Oregon estimates that replacing an entire 2,000 square-foot roof with Tesla Solar Roof tiles will cost about $42,500. This is more expensive than installing a regular asphalt-shingle roof with a traditional racked solar system, but it is more affordable when compared to more premium materials like metal, slate, and tiles combined with a conventional solar array.
This was highlighted earlier this year by Tesla owner-enthusiast Ben Sullins, who estimated that a 9.2 kW Solar Roof system will cost about $56,000. And while a standard shingle roof with a 9.2 kW PV system will likely cost just around $42,000, premium roofing materials with solar panels are far more expensive. Sullins estimated that a metal roof with a comparable PV system will cost about $70,000, a tile woof with a 9.2 kW solar system will cost about $111,000, and a slate roof with traditional panels will set back homeowners around $134,000.
With this in mind, and with Tesla’s tendency to keep innovating, there is a good chance that the Solar Roof will get even more affordable in the near future. At an estimated $2.11 per installed watt, after all, the Solar Roof is already a disruptor in its segment, and it is already taking steps to get closer to the costs of conventional roofing materials plus solar panels. Granted, this disruption is yet to become evident as the Solar Roof is only available in some zip codes of 16 US states today, but the following year will likely be exciting for the flagship solar product.
This was highlighted by Elon Musk during Tesla’s Q3 2020 earnings call. When asked about that ramp of the flagship product, Musk noted that the potential of the Solar Roof will be evident in 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 regular 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.
Solar Oregon’s webinar about solar roof systems could be viewed below.
Tesla is updating Cybertruck owners on its timeline of a massive feature that has yet to ship: Powershare with Powerwall.
Powershare is a bidirectional charging feature exclusive to Cybertruck, which allows the vehicle’s battery to act as a portable power source for homes, appliances, tools, other EVs, and more. It was announced in late 2023 as part of Tesla’s push into vehicle-to-everything energy sharing, and acting as a giant portable charger is the main advantage, as it can provide backup power during outages.
Cybertruck’s Powershare system supports both vehicle-to-load (V2L) and vehicle-to-home (V2H), making it flexible and well-rounded for a variety of applications.
However, even though the feature was promised with Cybertruck, it has yet to be shipped to vehicles. Tesla communicated with owners through email recently regarding Powershare with Powerwall, which essentially has the pickup act as an extended battery.
Powerwall discharge would be prioritized before tapping into the truck’s larger pack.
However, Tesla is still working on getting the feature out to owners, an email said:
“We’re writing to let you know that the Powershare with Powerwall feature is still in development and is now scheduled for release in mid-2026.
This new release date gives us additional time to design and test this feature, ensuring its ability to communicate and optimize energy sharing between your vehicle and many configurations and generations of Powerwall. We are also using this time to develop additional Powershare features that will help us continue to accelerate the world’s transition to sustainable energy.”
Owners have expressed some real disappointment in Tesla’s continuous delays in releasing the feature, as it was expected to be released by late 2024, but now has been pushed back several times to mid-2026, according to the email.
Foundation Series Cybertruck buyers paid extra, expecting the feature to be rolled out with their vehicle upon pickup.
Cybertruck’s Lead Engineer, Wes Morrill, even commented on the holdup:
As a Cybertruck owner who also has Powerwall, I empathize with the disappointed comments.
To their credit, the team has delivered powershare functionality to Cybertruck customers who otherwise have no backup with development of the powershare gateway. As well as those with solar…
— Wes (@wmorrill3) December 12, 2025
He said that “it turned out to be much harder than anticipated to make powershare work seamlessly with existing Powerwalls through existing wall connectors. Two grid-forming devices need to negotiate who will form and who will follow, depending on the state of charge of each, and they need to do this without a network and through multiple generations of hardware, and test and validate this process through rigorous certifications to ensure grid safety.”
It’s nice to see the transparency, but it is justified for some Cybertruck owners to feel like they’ve been bait-and-switched.
Energy
Tesla starts hiring efforts for Texas Megafactory
Tesla’s Brookshire site is expected to produce 10,000 Megapacks annually, equal to 40 gigawatt hours of energy storage.
Tesla has officially begun hiring for its new $200 million Megafactory in Brookshire, Texas, a manufacturing hub expected to employ 1,500 people by 2028. The facility, which will build Tesla’s grid-scale Megapack batteries, is part of the company’s growing energy storage footprint.
Tesla’s hiring efforts for the Texas Megafactory are hinted at by the job openings currently active on the company’s Careers website.
Tesla’s Texas Megafactory
Tesla’s Brookshire site is expected to produce 10,000 Megapacks annually, equal to 40 gigawatt hours of energy storage, similar to the Lathrop Megafactory in California. Tesla’s Careers website currently lists over 30 job openings for the site, from engineers, welders, and project managers. Each of the openings is listed for Brookshire, Texas.
The company has leased two buildings in Empire West Business Park, with over $194 million in combined property and equipment investment. Tesla’s agreement with Waller County includes a 60% property tax abatement, contingent on meeting employment benchmarks: 375 jobs by 2026, 750 by 2027, and 1,500 by 2028, as noted in a report from the Houston Business Journal. Tesla is required to employ at least 1,500 workers in the facility through the rest of the 10-year abatement period.
Tesla’s clean energy boom
City officials have stated that Tesla’s arrival marks a turning point for the Texas city, as it highlights a shift from logistics to advanced clean energy manufacturing. Ramiro Bautista from Brookshire’s economic development office, highlighted this in a comment to the Journal.
“(Tesla) has great-paying jobs. Not just that, but the advanced manufacturing (and) clean energy is coming to the area,” he said. “So it’s not just your normal logistics manufacturing. This is advanced manufacturing coming to this area, and this brings a different type of job and investment into the local economy.”
Energy
Tesla and Samsung SDI in talks over new US battery storage deal: report
The update was related by industry sources and initially reported by South Korean news outlets.
Recent reports have suggested that Tesla and Samsung SDI are in talks over a potential partnership to supply batteries for large-scale energy storage systems (ESS).
The update was related by industry sources and initially reported by South Korean news outlets.
ESS batteries to be built at Samsung’s Indiana plant
As noted in a report from Korea JoongAng Daily, the demand for energy storage systems has been growing rapidly in North America, thanks in no small part to the surge in AI investments across numerous companies. With this in mind, Tesla has reportedly approached Samsung SDI about a potential battery supply deal.
The deal is reportedly worth over 3 trillion Korean won (approximately $2.11 billion) and will span three years, according to The Korea Global Economic Daily. A battery supply deal with Samsung SDI could make sense for Tesla as the company already has a grid-scale battery, the Megapack, which is perfect for industrial use. Samsung SDI could simply supply cells for the EV maker.
Production of the batteries would reportedly take place at Samsung SDI’s joint venture factory with Stellantis in Indiana, which is currently under construction. Samsung SDI recently announced plans to use part of that plant’s EV lines to produce cells for ESS, with a targeted capacity of 30 GWh by the end of next year.
Tesla and Samsung’s partnership
At present, only a handful of manufacturers, including Korea’s LG Energy Solution, Samsung SDI, SK On, and Japan’s Panasonic, are capable of producing energy storage-scale batteries domestically in the United States. A Samsung SDI official issued a comment about the matter, stating, “Nothing has been finalized regarding cooperation with Tesla.”
The possible energy storage system deal adds another layer to Tesla’s growing collaboration with Samsung, which is already in line as a partner in the upcoming production of Tesla’s AI5 and AI6 chips. Early sample manufacturing of the AI6 is expected to begin in South Korea, with mass production slated for Samsung’s Texas-based Taylor foundry when it starts operations.
The AI6 chip will power Tesla’s next wave of high-volume projects, including the Optimus humanoid robot and the autonomous Cybercab service. Musk has called the partnership with Samsung a “real collaboration,” adding that he personally plans to “walk the line” at the Taylor facility to speed up progress.
Tesla updates Cybertruck owners about key Powershare feature
Tesla’s northernmost Supercharger in North America opens
