

Energy
Google’s giant “kite” can generate wind energy from almost anywhere
A Google X division company named Makani has designed a giant “kite” that can generate enough wind energy to power about 300 homes. Named the “M600” after the 600 kW of electricity produced by its movement, the craft resembles a sport glider with two levels of multiple propellers on the front, more generally described as an aerodynamic wing. After more than ten years of development and a prototype test flight in 2016, M600 has begun full size testing in Hawaii this year to continue its journey towards becoming a portable power solution that can be brought anywhere with sufficient wind to propel it.
The functionality of M600 is fairly straightforward. After being connected to a 1400 foot high-strength tether, it uses 8 onboard motors to climb from a 15-foot base station to its determined altitude (about 1000 ft) with a small amount of voltage power. Then, it transitions into crosswind where it flies in 800 foot wide loops lasting 10-25 seconds each to generate maximum power via onboard computers guided by data from sensors, GPS, and an inertial navigation system.
The rotation of the 85 foot wide kite’s rotors drives magnet motors/generators on board, producing electricity that transfers down the tether where it can be connected to an energy grid. The electricity comes down in DC (direct current), but is converted to AC (alternating current) at its base station.
- The M600 wind power kite during testing in Hawaii. | Credit: Makani/X Development LLC
- The M600 wind power kite during testing in Hawaii. | Credit: Makani/X Development LLC
- The M600 wind power kite during testing in Hawaii. | Credit: Makani/X Development LLC
- The M600 wind power kite during testing in Hawaii. | Credit: Makani/X Development LLC
- The M600 wind power kite during testing in Hawaii. | Credit: Makani/X Development LLC
- The M600 wind power kite during testing in Hawaii. | Credit: Makani/X Development LLC
One of the needs driving Makani’s kite is accessing wind sources that aren’t practical or cost-effective in today’s markets. Its mass is about 10% of a conventional wind turbine with similar output thanks to the carbon fiber materials it’s primarily made from. The lighter, portable design of the M600 could help bring wind energy to areas devastated by natural disasters and places where coastal waters are too deep for other wind systems to sit on the seabed.
Google’s X division (under the broader parent company Alphabet Inc.) is a secretive development factory dedicated to radical innovations that solve the world’s toughest problems. It provided the initial funding for Makani’s kite technology as part of its 2007 RE<C initiative and officially graduated the company into X in 2013. As part of X, the company is working towards the one of the division’s missions of promoting global adoption of renewable energy and developing airborne wind energy technology.
Makani is not the only company developing flying wind generators. The “airborne wind energy” (AWE) industry is full of competitors developing their own versions. As a new clean energy technology, though, AWE companies face an uphill battle in becoming commercially viable due to research and development costs that take years, a problem faced by many new industries overall. However, as the technology comes to market and matures, AWE could follow the path forged by traditional turbine wind power which is now competitive with fossil fuels. A recent report by IDTechEx projected AWE will become a multi-billion dollar industry within 20 years.
The Makani team is continuing to develop more advanced versions of its wind energy kite while discussing the technical and economic integration aspects of the technology with industry experts. Initial ground and hover tests of the kite begun in Hawaii in August this year. In the coming weeks, the full 85-foot commercial version of the M600 will finally be tested.
Watch the below video to see the M600 prototype in action:
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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