Energy
Tesla Energy, battery storage broke new ground in 2018, and 2019 will be even better
Visionaries like Elon Musk, who are aiming for a world powered by sustainable energy, would be proud of the industry’s progress in 2018. Over the course of the year, investments flowed into research, the prices of batteries declined, governments across the globe supported clean energy solutions, and electric vehicles such as the Tesla Model 3 led the charge in transitioning the transportation sector away from fossil fuels.
A study from Bloomberg New Energy Finance has noted that in 2018, global annual energy storage more than doubled, reaching 9 GWh, and it is currently on pace to rise another 78% this year. In August 2018, the cumulative sales of electric cars passed the 4 million mark as well, and NEF analysts expect the EV industry to surpass 5 million in sales in the first quarter of 2019. Even in the United States, where companies like Tesla are struggling to meet the demand for their residential energy products, deployments on a rated-power basis across the country rose 57% to an estimated 338 KW after three years of flat to negative growth.
At the core of all this growth are the advancements in battery technology. Producers of batteries have ramped their operations to meet increasing demand, from China’s BYD Co. Ltd. to South Korea’s LG Chem to Japan’s Panasonic Corp. and its US partner Tesla. Benchmark Mineral Intelligence notes that by 2028, the combined manufacturing capacity of these battery producers would likely reach at least 1,330 GWh. That’s about ten times greater than the entire’s industry’s total capacity entering 2018.
In an email to S&P Global Market Intelligence, Simon Moores, managing director of Benchmark Mineral Intelligence, mentioned that the scale of recent battery projects signifies a change in the market. Moores also pointed out that while the emergence of electric cars is notable, the rise of energy storage has been impressive as well.
“When you see projects now being planned at over 1 GWh in scale, when only 18 months ago a 300-MWh installation was something to behold, you know you have entered a new era. It has been quite interesting to watch the battery makers’ dilemma of where to send the lithium-ion cells. Of course, they have contracts to honor with automotive producers, but the order inquiries from [energy storage] producers have been incredible,” Moores said.
One thing that is working in favor of renewables today is the falling prices of batteries and clean energy as a whole. Tom Buttgenbach, president and CEO of developer 8minutenergy Renewables LLC, described this in a statement to S&P Global Market Intelligence.
“I can beat a gas peaker anywhere in the country today with a solar-plus-storage power plant. Who in their right mind today would build a new gas peaker? We are a factor of two cheaper,” he said.
Buttgenbach’s statements echo the words of Tesla Chief Technology Officer JB Straubel, who noted last year that the age of fossil fuel powered peaker plants is at an end. Speaking to the San Francisco Chronicle, Straubel stated that batteries, even at their current state, are already starting to prove themselves as superior to conventional energy solutions.
“I think what we’ll see is we won’t build many new peaker plants, if any. Already what we’re seeing happening is the number of new ones being commissioned is drastically lower, and batteries are already outcompeting natural gas peaker plants,” the Tesla CTO said.
While the progress of batteries has been impressive, though, Logan Goldie-Scot, head of energy storage at Bloomberg NEF, has stated that the past year exhibited uneven growth among different regions across the globe. South Korea, for one, saw a rise in energy deployments, while territories like the United Kingdom took a step back. In the United States, extreme demand such as those faced by Tesla Energy for products like the Powerwall 2 also caused delays in installations. Yet, despite these, Goldie-Scot stated that 2018 was a turning point for energy storage nonetheless.
“Even though progress was uneven, there was a much greater consensus in 2018 over the importance of energy storage, even in the near term, in major markets. In 2017, there were still a lot of people talking about how energy storage was not necessarily a competitive solution and was going to be limited. I hear those conversations much less now. Energy storage is now becoming more integrated into resource plans,” she said.
Amidst this transition, companies such as Tesla are taking the battle to heart. Last November, for example, Tesla opened the doors of Gigafactory 2 in Buffalo, NY to select members of the media. During the media visit, Tesla noted that it is aiming to ramp operations in the site with more hires, and that the 1.2-million sq ft facility is already running 24/7, with employees alternating 12-hour shifts. Tesla’s Gigafactory 2 is expected to play a huge role in the company’s energy business, considering that it is the site where the Solar Roof tiles, the company’s flagship solar product, are being manufactured.
Energy
Tesla Model 3 and Model Y can now do what only Cybertruck could
Tesla Model 3 and Model Y can power your home with Powerwall 3 during outages.
Tesla has turned its two top sellers into backup batteries for the house.
Tesla Energy announced on Tuesday that Powershare Home Backup is now available for new Model 3 and Model Y vehicles paired with a Powerwall 3, saying the car can “extend your home backup by over 2 days.” Minutes later, Tesla’s main account quoted the post with a broader pitch: “With Powerwall 3, every Tesla can now serve as your home’s backup battery.”
Until this week, the Cybertruck was the only Tesla that could send power back into a home, and that capability only began working alongside Powerwall 3 last month, after years of ambitious targets.
Tesla’s updated Powershare page says every Model 3 and Model Y ordered in the U.S. or Puerto Rico on or after October 1, 2026 can use the feature. Some, but not all, earlier cars also qualify. Owners can check on the touchscreen under Software, then Additional Vehicle Information, where a capable car shows “Powershare Support: Enabled.” As Electrek reported, bidirectional power on the two cars runs through an inverter Tesla calls PCS2 Lite, and the company has not said when that part entered production on each trim.
The home side is simpler. A house that already has a Powerwall 3 and either a Wall Connector 3 or Universal Wall Connector needs no additional equipment, and Tesla says compatibility is enabled through a software update. When the grid drops, the Powerwall and the car work together, with up to 11.52 kW of continuous power available. Tesla’s “over two days” estimate assumes a home using 30 kWh per day and a car starting at a 90 percent charge. Standard trims are rated for up to two days, while the Cybertruck adds more than three.
There are limits. Powerwall 2 and Powerwall+ support is listed as “coming soon.” Model S and Model X are not included, and Grid Support, the program that lets Cybertruck owners in Texas send power back to the grid during demand spikes for bill credits, is not available for Model 3 or Model Y.
The rollout also lines up with something Elon Musk said more than three years ago. At Tesla’s March 2023 Investor Day, Musk said, “I don’t think very many people are going to want to use bidirectional charging, unless you have a Powerwall.” Tesla has now shipped the feature for its volume cars with exactly that requirement attached.
The Powerwall pairing was the hard part on Cybertruck. Tesla told owners in December 2025 that Powershare with Powerwall had been pushed to mid 2026, and lead engineer Wes Morrill explained that two devices capable of forming a home’s grid have to negotiate which one leads during an outage, across multiple generations of hardware. With that work done for the truck, Tesla was able to extend it to the Model 3 and Model Y within a month.
Ford and GM have offered home backup from their EVs for several years, but both require a separate inverter and backup hardware. Tesla’s version leans on equipment many Powerwall 3 owners already have on the wall. Powershare for the two cars also ships as part of software update 2026.38.3, the same release that began delivering Halloween Mode on Tuesday.
Elon Musk
Google just picked SpaceX for its first step into orbital AI
Google will launch its first Project Suncatcher AI satellite on SpaceX’s Transporter-18 rideshare next week.
Google is about to put its own AI chips into orbit for the first time, and it is paying SpaceX to get them there.
The company said Thursday that the first in-orbit test of Project Suncatcher, its research effort to find out whether space can host large-scale AI computing, will fly next week on SpaceX’s Transporter-18 rideshare mission.
The satellite, called MVP, is about the size of a refrigerator and carries four of Google’s Tensor Processing Units, the same chips Google runs in its ground data centers. Google originally planned to launch two custom satellites in 2027, but chose to move faster by integrating its chips into a satellite.
MVP’s solar panels supply about one kilowatt of power, and Google will run Gemini models on the TPUs only in bursts of roughly 15 minutes before the chips shut down so the radiators can shed heat. In a blog post, Google said its Trillium TPUs survived vibration testing that mimicked sustained launch loads of up to 10g, with individual components seeing 50 to 100g, and handled a radiation dose greater than a five year mission would deliver.
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Next week’s flight, slated for October 1, follows a relationship that became public in May, when Teslarati reported that Google was in talks with SpaceX for a launch deal tied to orbital data centers. Google also holds a stake of roughly 6% in SpaceX.
The two companies are chasing the same idea from very different starting points. SpaceX’s own orbital compute program is built around the AI1 satellite, a roughly 70 meter structure derived from Starlink V3 hardware that is designed for 150 kW of peak compute, about 150 times the power MVP will draw. Elon Musk has brushed off concerns about crowding orbit with those satellites, and SpaceX is building its Gigasat factory in Bastrop, Texas, to produce them, targeting an annualized rate of about 1 GW of space compute by the end of 2027.
Musk also posted on X on Thursday that “the amount of compute in space will obviously round up to 100% of all compute.”
Google has been more cautious in public. Its research estimates that launch prices need to fall below about $200 per kilogram before an orbital data center can compete with a ground facility on energy cost, a threshold the company believes could be reached around the mid 2030s. The Suncatcher team has said it expects the effort to remain a project rather than a product for years, which leaves the first real test of its hardware riding on a rocket from the company with the most aggressive timeline in the field.
Energy
Tesla Semi factory is getting a celebration nobody expected
Tesla will inaugurate its Nevada Semi factory September 24, five months after production quietly began ramping.
Tesla says it will officially inaugurate its new Semi factory in Nevada next month. The Tesla Semi account posted the announcement on X, sharing a graphic titled “Semi Rollout” with a date of September 24. No further details were given about the format of the event or who would attend.
While Tesla’s dedicated Semi plant in Sparks, adjacent to Gigafactory Nevada, opened back in April, with the first trucks rolling off the high volume line on April 29, the timing for the factory inauguration comes at a surprise. The ribbon cutting event five months into production is a break from how Tesla has usually handled its other factories, where the first truck or car off the line typically served as the milestone moment.
Inauguration of new Semi factory in Nevada next month pic.twitter.com/a8kAlxrOOn
— Tesla Semi (@tesla_semi) August 24, 2026
The 1.7 million square foot factory was built as part of a $3.6 billion expansion Tesla announced in early 2023, and it shares a site with the battery cell lines that feed the Semi’s structural pack, a decision meant to remove the supply bottleneck that delayed the truck for years. The plant is designed for 50,000 trucks a year at full ramp. Semi program director Dan Priestley has said production “is now ramping” rather than claiming it has reached scale.
Nine years passed between the Semi’s 2017 unveiling and this stage of production, with the truck slipping from an original 2019 target through hand built pilot units for PepsiCo and a slow build out of the Nevada plant. An inauguration event now gives Tesla a stage to talk up that ramp and reset expectations for how many trucks it can begin delivering at scale.
The September date also lines up with the Semi’s next milestone. Tesla confirmed the truck is heading to Europe with a full unveiling at the IAA Transportation trade show in Hannover, Germany, running September 15 through 20. Between the Nevada event and the Hannover reveal, Tesla has roughly a week and a half in September to make the case that the Semi is now a truck being built and sold on two continents rather than tested in a handful of fleets.
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