Energy
Tesla’s battery genius may hold the key to a closed-loop recycling endgame
Last year, a proverbial bomb dropped on Tesla after CTO and co-founder JB Straubel announced that he was transitioning into an advisor role and stepping away from his day-to-day duties in the company. While Straubel assured investors that he was not “disappearing” from Tesla in his final earnings call, he did stay notably under the radar following his departure. But as the date for the electric car maker’s Battery Day draws closer, it appears that some pieces are slowly falling into place suggesting that JB Straubel’s company, Redwood Materials, and Tesla, may be coming together at a key junction.
To state that JB Straubel was the backbone of Tesla’s industry-leading battery tech is no understatement. Much of the company’s breakthroughs in its battery-related efforts, such as the construction of Gigafactory Nevada, would not have been possible without Straubel’s genius. In fact, so notable were his contributions to Tesla’s battery tech in the company’s early days that he was eventually considered as a co-founder of the electric car maker.
But even during his last years at Tesla, Straubel has remarked that one key aspect remains missing from the EV transition — closed-loop battery recycling. Battery electric vehicles are great in the way that they are zero-emissions, after all, but disposing of their batteries at their end-of-life presents notable challenges under closed-loop recycling is developed. “Ultimately what we want is a closed-loop, right, at the Gigafactories that reuses the same, recycled materials,” he remarked at Tesla’s 2018 Annual Shareholders Meeting.
Prior to his departure from his day-to-day duties at Tesla, reports emerged stating that Straubel had founded a stealthy battery recycling startup called Redwood Materials. Interestingly enough, Redwood centered its operations in Nevada, the same state that hosts Tesla’s biggest battery facility to date, Gigafactory 1. When reports about Redwood initially emerged in 2018, however, Straubel was quick to note that his recycling startup’s operations are “unrelated to Tesla or to the Gigafactory directly.”
A recent report from The Wall Street Journal has now revealed some notable details that may explain some aspects of Straubel’s statement back in 2018. According to the publication, Redwood has already convinced Panasonic, Tesla’s battery partner at Gigafactory Nevada, to utilize Redwood’s technology to reclaim scrap from its operations in the facility. Panasonic reportedly started with a trial run that involved Redwood reclaiming more than 400 pounds of scrap from its Giga Nevada operations. The Japanese firm appears to have been satisfied with Redwood’s results in the trial run, as Panasonic reportedly upped its contract with the startup to 2 tons not long after.
Today, the Journal stated that all of the scrap coming from Panasonic’s side of Gigafactory Nevada’s battery production activities are being shipped to Redwood Materials for recycling. In a way, Redwood’s partnership with Panasonic seems to fit Straubel’s statement back in 2018, when he noted that his startup has no direct relation to Tesla’s operations. That being said, it is evident that Redwood’s tech is a notable step forward towards JB Straubel’s vision of a closed-loop battery recycling system.
Straubel’s plans for Redwood are ambitious, as he is looking to develop a recycling process that is so efficient that batteries coming from retired electric vehicles and energy storage units could be quickly stripped down, recycled for their core materials, and used to rebuild new batteries. With such a system in place, a closed-loop is created, and hardly any materials are lost. It’s a lofty goal, but it does hint at Straubel’s understated determination that made him such a powerful background force in Tesla.
Interestingly enough, Tesla’s new Impact Report specifically includes a section about closed-loop battery recycling. According to the electric car maker, such a setup at Gigafactory Nevada “presents a compelling solution to move energy supply away from the fossil-fuel based practice of take, make and burn, to a more circular model of recycling end-of-life batteries for reuse over and over again. From an economic perspective, we expect to recognize significant savings over the long term, as the costs associated with large-scale battery material recovery and recycling will be far lower than purchasing and transporting new materials.”
It remains to be seen if JB Straubel’s Redwood Materials and Tesla are indeed working together to recycle batteries from Gigafactory 1 and perhaps even the electric car maker’s own Roadrunner program, but despite the lack of confirmation for now, one thing is certain. One of the brightest minds in Tesla, who is arguably the genius behind the company’s battery tech and initiatives, has started a thriving company that fills in the crucial gap of battery recycling. And with such a key innovation at its doorstep, it appears out of character for Tesla to simply ignore the opportunities presented by Redwood Materials and its battery recycling technologies.
Elon Musk
Why SpaceX just made a $60 billion bet on AI coding ahead of historic IPO
SpaceX has secured an option to acquire Cursor AI for $60 billion ahead of its historic IPO.
SpaceX announced today it has struck a deal with AI coding startup Cursor, securing the option to acquire the company outright for $60 billion later this year, while committing $10 billion for joint development work in the interim. The announcement described the partnership as building “the world’s best coding and knowledge work AI,” and comes just days after Cursor was separately reported to be raising $2 billion at a valuation above $50 billion.
The move makes strategic sense given where each company currently stands. Cursor currently pays retail prices to Anthropic and OpenAI to the same companies competing directly against it with Claude Code and Codex. That means every dollar of revenue Cursor earns partially funds its own competition. With SpaceX bringing computational infrastructure to the Cursor platform, that could reduce Cursor’s dependence on OpenAI and Anthropic’s Claude AI as its providers. Access to SpaceX’s Colossus supercomputer, with compute equivalent to one million Nvidia H100 chips, gives Cursor the infrastructure to run and train its own models at a scale it could never afford independently. That one change restructures the entire unit economics of the business.
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Cursor’s $2 billion in annualized revenue and enterprise reach across more than half of Fortune 500 companies gives SpaceX something its xAI subsidiary currently lacks, which is a proven, fast-growing software business with real enterprise distribution.
For Cursor, SpaceX’s $10 billion in joint development funding is transformational. Cursor raised $3.3 billion across all of 2025 to reach that $2 billion in revenue. A single $10 billion commitment from SpaceX, even as a development payment rather than an acquisition, dwarfs everything Cursor has raised in its entire existence. That capital accelerates product development, enterprise sales infrastructure, and proprietary model training simultaneously.
The timing is deliberate. SpaceX filed confidentially with the SEC on April 1, 2026, targeting a June listing at a $1.75 trillion valuation, in what would be the largest public offering in history. The company is expected to begin its roadshow the week of June 8, with Bank of America, Goldman Sachs, JPMorgan, and Morgan Stanley serving as underwriters. Adding Cursor to the portfolio before that roadshow gives IPO investors a concrete enterprise software revenue story to price in, alongside rockets and satellite internet.
The deal also addresses a weakness that became visible after February’s xAI merger. Several xAI co-founders departed following that acquisition, and SpaceX had already hired two Cursor engineers, signaling where its AI talent strategy was heading. Cursor, for its part, faces a pricing disadvantage competing against Anthropic’s Claude Code.
Whether SpaceX exercises the full acquisition option before its IPO or after remains the open question. Either way, this deal reshapes what investors will be buying into when SpaceX goes public.
Elon Musk
Tesla Supercharger for Business exposes jaw-dropping ROI gap between best and worst locations
Tesla’s new Supercharger for Business calculator reveals an eye-opening all-in cost and location-based ROI projections.
Tesla has launched an online calculator for its Supercharger for Business program, giving property owners their first transparent look at what it really costs to install Superchargers on site and what kind of return they can expect.
The program itself launched in September 2025, allowing businesses to purchase and operate Supercharger hardware on their own property while Tesla handles installation, maintenance, software, and 24/7 driver support. As Teslarati reported at launch, hosts also get their logo placed on the chargers and their location integrated into Tesla’s in-car navigation, meaning drivers are actively routed there. The stalls are open to all EVs, not just Teslas.
We launched Supercharger for Business in 2025 to help companies get charging right. We found simplicity and transparency to be a problem in this industry.
We’re now sharing pricing and a financial calculator to help make informed decisions. The goal is to accelerate investments,…
— Tesla Charging (@TeslaCharging) April 8, 2026
The new online calculator, announced by Tesla on Wednesday with the note that “simplicity and transparency” have been a problem in the industry, lets any business enter a U.S. address and get a real cost and revenue model. A standard 8-stall V4 Supercharger site runs approximately $500,000 in hardware and $55,000 per post for installation, bringing an all-in price just shy of $1 million. Tesla charges a flat $0.10 per kWh fee to cover software, billing, and network operations. Businesses set their own retail price and keep the margin above that fee.
Taking a look at Tesla’s Supercharger for Business online calculator, we can see that ROI is not uniform, and the gap between a strong location and a poor one can stretch the breakeven point by several years.
The biggest driver is foot traffic and how long people stay. A busy rest station, hotel, or outlet mall brings in repeat visitors who need to charge while they’re already stopped, pushing utilization numbers higher and shortening payback time.
Tesla Supercharger for Business ROI calculator
Local electricity rates matter just as much on the cost side. Markets like California carry some of the highest commercial electricity rates in the country, which eats into the margin between what a host pays per kWh and what they charge drivers. At the same time, dense urban areas with high EV adoption tend to support higher retail charging prices, which can offset that cost if demand is strong enough. Weather also plays a role. Cold climates reduce battery efficiency and increase charging frequency, but they can also suppress utilization in winter months if drivers avoid stopping in exposed outdoor locations. Suburban and rural sites face a different problem: lower baseline EV traffic, which means a site with cheaper power and lower operating costs can still take longer to pay back simply because the stalls sit idle more often. Tesla’s calculator uses real fleet data to pre-fill utilization estimates by ZIP code, so businesses can run their specific address against these variables rather than relying on averages.
The program has seen real adoption. Wawa, already the largest host of Tesla Superchargers with over 2,100 stalls across 223 locations, opened its first fully owned and branded site in Alachua, Florida earlier this year. Francis Energy of Oklahoma and the city of Alpharetta, Georgia have also deployed branded stations through the program, as Teslarati covered in January.
Tesla now exceeds 80,000 Supercharger stalls worldwide, and the calculator makes the economic case for accelerating that number through private investment rather than company-owned sites alone.
Energy
Tesla’s newest “Folding V4 Superchargers” are key to its most aggressive expansion yet
Tesla’s folding V4 Supercharger ships 33% more per truck, cuts deployment time and cost significantly.
Tesla is rolling out a folding V4 Supercharger design, an engineering change that allows 33% more units to fit on a single delivery truck, cuts deployment time in half, and reduces overall installation cost by roughly 20%.
The folding mechanism addresses one of the least glamorous but most consequential bottlenecks in charging infrastructure: getting hardware from factory floor to job site efficiently. By collapsing the form factor for transit and unfolding into an operational configuration on arrival, the new design dramatically reduces the logistics overhead that has historically slowed Supercharger rollouts, particularly at large or remote sites where multiple units are needed simultaneously.
The timing aligns with a broader acceleration in Tesla’s network strategy. In March 2026, Tesla’s Gigafactory New York produced its final V3 Supercharger cabinet after more than seven years and 15,000 units, pivoting entirely to V4 cabinet production. The V4 cabinet itself is already a generational leap, delivering up to 500 kW per stall for passenger vehicles and up to 1.2 MW for the Tesla Semi, while supporting twice the stalls per cabinet at three times the power density of its predecessor. The folding transport innovation layers logistical efficiency on top of that technical foundation.
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Tesla Charging’s Director Max de Zegher, commenting on the V4 cabinet when it launched, captured the operational philosophy behind these changes: “Posts can peak up to 500kW for cars, but we need less than 1MW across 8 posts to deliver maximum power to cars 99% of the time.” The design philosophy has always been about maximizing real-world throughput, not just peak specs, and the folding transport upgrade extends that thinking into the supply chain itself.
Posts can peak up to 500kW for cars, but we need less than 1MW across 8 posts to deliver maximum power to cars 99% of the time.
No more DC busbar between cabinets. Power comes from a single V4 cabinet to 8 stalls. Easier to install, cheaper, more reliable.
Introducing Folding Unit Superchargers
– V4 cabinet with 500kW charging
– 8 posts per unit
– 2 units per truck
– 2 configurations: folded, unfoldedFaster. Cheaper. Better. pic.twitter.com/YyALz0U5cA
— Tesla Charging (@TeslaCharging) March 25, 2026
The network is expanding rapidly on multiple fronts. The first true 500 kW V4 Supercharger on the East Coast opened in Kissimmee, Florida in March 2026, followed closely by a new site in Nashville, Tennessee. A public Megacharger for the Tesla Semi launched in Ontario, California in early March, with 37 additional Megacharger sites targeted for completion by end of year. Meanwhile, more than 27,500 Supercharger stalls are now accessible to non-Tesla EVs from brands including Ford, GM, Rivian, Hyundai, and most recently Stellantis, whose Dodge, Jeep, Ram, Fiat, and Maserati BEV customers gained access in March 2026.
As Tesla pushes toward a denser, faster, and more open charging network, innovations like the folding V4 Supercharger reflect the company’s growing focus on deployment velocity, not just hardware performance. Getting chargers to the ground faster, cheaper, and in greater volume per shipment may ultimately matter as much as the kilowatts they deliver.
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