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Tesla Top 5 Week in Review: Solar Roof, P100D Race Car Composites, Model 3 sighting, and more

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The top articles of the week at Teslarati revolved around some of the Biggest Tesla Stories for 2017, with solar roof production at Gigafactory 2 and a Model 3 prototype sighting taking the news fast lane. But sometimes the small voices are the ones that are heard the loudest, with an upcoming Tesla commercial as the result. Tesla has become the first company to provide large magnitude solar energy for a utility, and a self-described vegan hippie race car chick will unveil an electric GT Tesla P100D race car later this month — and it’s made of biocomposite materials. Here are those stories, and more.

Tesla gears up for Solar Roof production at Gigafactory 2, Panasonic will have major role at plant

Tesla’s factory in Buffalo, dubbed Gigafactory 2, will be a site of solar roof tile manufacturing. Panasonic, Tesla’s strategic partner, will manufacture solar cells there with ancillary help from Silevo, which SolarCity acquired in 2014. Panasonic, which  has a $250 million investment in the facility, will also produce full solar panels in Buffalo, and those will be sold to Tesla. Panasonic has agreed to grant adjustable pricing to Tesla for solar products it purchases from the Japanese electronics company over the next 10 years.

Read the article here.

Tesla Model 3 spotted testing along Hyperloop track outside of SpaceX

A polished and very complete-looking silver Tesla Model 3 prototype was caught in rare video footage this week doing test runs on a street outside SpaceX and the Hyperloop test track. Unplugged Performance, which produces upgrades for Tesla vehicles, spotted the prototype cruising around the nearby area. The Model 3 is newest vehicle in the Tesla catalog, with a starting price of $35,000 and an expected production date of summer, 2017. The prototype has made guest appearances at a number of events and venues, including an investor event in January.

Read the article here.

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Tesla launches “Project Loveday” contest for fan-made commercials

This week, Tesla CEO Elon Musk — whose Twitter feed is a much-visited social media site by journalists, Tesla owners, and cleantech aficionados — announced that he would hold a contest for homemade advertisements after receiving a challenge from a fifth grade student. “Thank you for the lovely letter. That sounds like a great idea. We’ll do it!” Musk tweeted to young Bria. The “Project Loveday” contest, which will end on  May 8, 2017, will review the best fan-made commercials. According to the blog post on Tesla’s website, entrants can submit a link to a 90 second or less YouTube video along with a brief description.

Read the article here.

Tesla locks in 20-year deal to provide solar electricity to Kauai Island Utility

On Kauai, which is described by many as the most picturesque of the Hawai’ian islands, daytime reliance on solar energy and other renewables has traditionally dissipated when the sun sets. Now that’s all changing, as the Kauai Island Utility Cooperative (KIUC) is drawing energy from 272 Tesla power packs to provide electricity after dark. The measure will save KIUC 1.6 million gallons of diesel fuel annually and will cut KIUC costs per kilowatt hour from 15.5 cents down to a fixed price of 13.9 cents for the next 20 years. The agreement shifts the power generation from the utility to Tesla, and Tesla is the first company with which any utility company has contracted for a system of this magnitude.

Read the article here.

Leilani Münter will help showcase Tesla race car “biocomposites” made of natural fibers

Electric GT’s Tesla P100D race car will be in Paris on March 15 with Leilani Münter showcasing the car’s high performance composite material made from natural fibers. Swiss firm Bcomp configures natural fibers into ultralight components known as “biocomposites” for the Electric GT race vehicles. These materials are formed by a matrix which mimics the structure of the living materials, maintains strengthening properties, and provides biocompatibility. An environmental activist, Münter believes it is essential for humans to adapt and evolve to a sustainable way that does not destroy the world. The racer is an advocate for renewable energy, solar power, electric cars, and plant-based diets and has been a longtime Tesla protege.

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Carolyn Fortuna is a writer and researcher with a Ph.D. in education from the University of Rhode Island. She brings a social justice perspective to environmental issues. Please follow me on Twitter and Facebook and Google+

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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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Energy

Tesla Energy celebrates one decade of sustainability

Tesla Energy has gone far since its early days, and it is now becoming a progressively bigger part of the company.

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(Credit: Tesla)

Tesla Energy recently celebrated its 10th anniversary with a dedicated video showcasing several of its milestones over the past decade.

Tesla Energy has gone far since its early days, and it is now becoming a progressively bigger part of the company.

Tesla Energy Early Days

When Elon Musk launched Tesla Energy in 2015, he noted that the business is a fundamental transformation of how the world works. To start, Tesla Energy offered the Powerwall, a 7 kWh/10 kWh home battery system, and the Powerpack, a grid-capable 100 kWh battery block that is designed for scalability. A few days after the products’ launch, Musk noted that Tesla had received 38,000 reservations for the Powerwall and 2,500 reservations for the Powerpack

Tesla Energy’s beginnings would herald its quiet growth, with the company later announcing products like the Solar Roof tile, which is yet to be ramped, and the successor to the Powerwall, the 13.5 kWh Powerwall 2. In recent years, Tesla Energy also launched its Powerwall 3 home battery and the massive Megapack, a 3.9 MWh monster of a battery unit that has become the backbone for energy storage systems across the globe.

Key Milestones

As noted by Tesla Energy in its recent video, it has now established facilities that allow the company to manufacture 20,000 units of the Megapack every year, which should help grow the 23 GWh worth of Megapacks that have already been deployed globally. 

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The Powerwall remains a desirable home battery as well, with more than 850,000 units installed worldwide. These translate to 12 GWh of residential entry storage delivered to date. Just like the Megapack, Tesla is also ramping its production of the Powerwall, allowing the division to grow even more.

Tesla Energy’s Role

While Tesla Energy does not catch as much headlines as the company’s electric vehicle businesses, its contributions to the company’s bottom line have been growing. In the first quarter of 2025 alone, Tesla Energy deployed 10.4 GWh of energy storage products. Powerwall deployments also crossed 1 GWh in one quarter for the first time. As per Tesla in its Q1 2025 Update Letter, the gross margin for the Energy division has improved sequentially as well.

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