Elon Musk announced that Tesla is well on its way to completing the world’s largest lithium ion battery in Jamestown, Australia, at a Powerpack event held at Noeon Hornsdale wind farm on September 29.
After just two months of construction, the facility is already operating at a 50 MW level. The world’s largest battery is expected to be fully operational in December 2017. Tesla said in a statement that the company partnered with Neoen, a renewable energy provider, and will complete the world’s largest battery pack within the next 100 days.
“Tesla was selected from over 90 competitive bids to provide the entire energy storage component of a 100 MW/129 MWh Powerpack System to be paired with global renewable energy provider Neoen’s Hornsdale Wind Farm near Jamestown, South Australia. The interconnection agreement has been approved by AEMO and has just been signed this afternoon by Electranet. Tesla and Neoen now have 100 days to complete the largest lithium-ion battery storage project in the world.” read the press release from Tesla.
Once fully operational, Musk said the plant will deliver 100 MW of energy to Southern Australia. In addition to the Powerpack opening event, Tesla also posted a time lapse of the construction of the facility on Instagram.
https://www.instagram.com/p/BZntJ7thHvq/?hl=en&taken-by=teslamotors
For Musk, who earlier in the day presented his vision for SpaceX-built Martian cities at IAC2017 in Australia, the world’s largest battery project is a precursor to what is expected to be the future of battery-powered energy sources.
“What this serves as is a great example for the rest of the world of what can be done,” Musk said. “So when this is done, which will be in just a few months, it will be the largest battery installation, by an estimated power factor of three, in the world.”
The Powerpack opening event was powered entirely by the Powerpack system, giving attendees a taste of what was possible.
“Talk is cheap, action is difficult. And the reason we worked as hard as we possibly could and got as much done as possible was to show that it’s not just talk it’s reality,” Musk said.
“Everything you see here, this whole event, everything, is powered by those packs,” he said, pointing out the window at the battery facility. “There are no generators, this is all coming from that system over there.”
Tesla’s 100 MW/129 MWh Powerpack system dubbed as the ‘World’s largest battery’ in Jamestown, Australia
The world’s largest battery was constructed after sweeping blackouts across Southern Australia. Musk tweeted that he would fix the power crisis in Southern Australia, a move he quipped about with supporters at the event.
“As you guys know, a year ago the situation was pretty dire … One tweet leads to another, and then pretty soon that,” he said, pointing again to the Powerpack facility.
For Musk and Tesla, the Hornsdale battery facility is the first step toward revolutionizing energy across the globe. Musk ended his presentation at the facility by talking about the space needed to power all of Australia with renewable energy and battery packs.
“That is what the future will look like,” Musk said in closing, “and the faster we get there, the better.”
https://www.youtube.com/watch?time_continue=10&v=W9CiPs8E5xQ
Energy
Tesla launches first Virtual Power Plant in UK – get paid to use solar
Tesla has launched its first-ever Virtual Power Plant program in the United Kingdom.
Tesla has launched its first-ever Virtual Power Plant program in the United Kingdom. This feature enables users of solar panels and energy storage systems to sell their excess energy back to the grid.
Tesla is utilizing Octopus Energy, a British renewable energy company that operates in multiple markets, including the UK, France, Germany, Italy, Spain, Australia, Japan, New Zealand, and the United States, as the provider for the VPP launch in the region.
The company states that those who enroll in the program can earn up to £300 per month.
Tesla has operated several VPP programs worldwide, most notably in California, Texas, Connecticut, and the U.S. territory of Puerto Rico. This is not the first time Tesla has operated a VPP outside the United States, as there are programs in Australia, Japan, and New Zealand.
This is its first in the UK:
Our first VPP in the UK
You can get paid to share your energy – store excess energy in your Powerwall & sell it back to the grid
You’re making £££ and the community is powered by clean energy
Win-win pic.twitter.com/evhMtJpgy1
— Tesla UK (@tesla_uk) July 17, 2025
Tesla is not the only company that is working with Octopus Energy in the UK for the VPP, as it joins SolarEdge, GivEnergy, and Enphase as other companies that utilize the Octopus platform for their project operations.
It has been six years since Tesla launched its first VPP, as it started its first in Australia back in 2019. In 2024, Tesla paid out over $10 million to those participating in the program.
Participating in the VPP program that Tesla offers not only provides enrolled individuals with the opportunity to earn money, but it also contributes to grid stabilization by supporting local energy grids.
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.
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