Recent aerial photographs obtained by Teslarati show that Tesla’s installation of its rooftop solar array for Gigafactory 1 outside of Reno, Nevada is progressing well. As could be seen in the images, which were taken on March 12, 2018, the California-based electric car and energy company has installed six sets of solar panels on the north end of the facility so far.
Gigafactory 1 was designed with sustainability in mind. Tesla’s description of the sprawling facility alone states that the factory is set to be powered exclusively by renewable energy sources, including a massive solar array that would be installed on its roof. In Tesla’s handout for an investor event, the Elon Musk-led firm described its plans of installing the largest rooftop solar array in the world and the system’s impressive specs. As the facility started taking form, however, the Nevada Gigafactory’s solar panels have proven elusive.
“GF1 is an all-electric factory with no fossil fuels (natural gas or petroleum) directly consumed. We will be using 100% sustainable energy through a combination of a 70 MW solar rooftop array and solar ground installations. The solar rooftop array is ~7x larger than the largest rooftop solar system installed today.”
Leaked images of the first set of solar panels in Gigafactory 1’s roof were released by Building Tesla late last month. The publication, which tracks the progress of Tesla’s structures over time, was able to get a snapshot of the rooftop solar array on February 21, 2018. During that time, only one set of solar panels were completed, and another one was being installed.
If Teslarati’s aerial photos are any indication, it seems like Tesla was able to install almost five more sets of solar panels over the last couple of weeks. Here are the photos we obtained of Gigafactory 1.
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- An aerial shot of Tesla’s Gigafactory 1 outside Reno, Nevada, taken during a flyover on March 12, 2018. [Credit: Teslarati]
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- An aerial shot of Tesla’s Gigafactory 1 outside Reno, Nevada, taken during a flyover on March 12, 2018. [Credit: Teslarati]
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- An aerial shot of Tesla’s Gigafactory 1 outside Reno, Nevada, taken during a flyover on March 12, 2018. [Credit: Teslarati]
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- An aerial shot of Tesla’s Gigafactory 1 outside Reno, Nevada, taken during a flyover on March 12, 2018. [Credit: Teslarati]
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- An aerial shot of Gigafactory 1 outside Reno, Nevada, taken during a flyover on March 12, 2018 and showing Tesla’s ongoing construction of a rooftop solar array. [Credit: Teslarati]
Now estimated to cost more than $1.3 billion in construction costs, the Nevada Gigafactory is still only a fraction of its planned size. Nevertheless, it is heartening to see that Tesla is starting the construction of the Nevada Gigafactory’s photovoltaic system. It does, after all, fit in well with the company’s current strategy of growing from within and optimizing its existing facilities before expanding its physical footprint.
As we noted in a previous report, Gigafactory 1’s footprint has been the same since August 2017. Reports from Buildzoom, however, reveal that the facility has seen a flurry of activity last year, with the Elon Musk-led firm filing 112 new building permits for Gigafactory 1 in 2017. The improvements, which cost Tesla another 379.9 million, included 50 addendums — enhancements for facilities already in operation — including upgrades for its microgrid laboratory, chiller yard, and general improvements in Sections F and G. A permit for a metrology lab, which would ensure that components are manufactured according to specifications, was also filed.
Currently, the Nevada Gigafactory, which is tasked with the production of the Model 3’s battery packs and drivetrain, boasts a footprint of 1.9 million square feet, with 4.9 million square feet of operational space across several floors. While the now-$1.3-billion facility is already impressive, however, Gigafactory 1 is still only 30 percent complete. Once finished, it is expected to cover an area of 13 million square feet and boast a battery production capacity of 35 GWh annually, making it the largest building in the world by physical footprint.
Energy
Tesla Lathrop Megafactory celebrates massive Megapack battery milestone
The Tesla Megapack is the backbone of Tesla Energy’s battery deployments.
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.
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.
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.
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.
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.
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.
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.
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.
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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