Energy
Tesla’s big battery in South Australia is a ‘complete waste of resources,’ claims Nissan
In a recent interview with Australian auto publication The Driven, Nissan’s global head of electric vehicles Nic Thomas shared a rather surprising view of Tesla’s big battery installation in South Australia, which is widely credited for helping residents reduce their dependence from gas cartels operating in the region.
During the launch of a new version of its popular all-electric 40 kWh Leaf in Melbourne, the Nissan executive boldly declared that Tesla’s Powerpack Farm in South Australia is a waste of resources. “It’s a complete waste of resources because what we can do is have cars that are also batteries and those cars are parked most of the time,” Thomas said.
Thomas’ statement comes as he was discussing the new Leaf’s vehicle-to-grid/vehicle-to-home (V2G/V2H) system, which will allow the all-electric car to serve as a home battery unit. With the system in place, the Leaf will not only store energy by plugging into a home or business; the vehicle could also serve the energy back when needed. V2H is already in use in countries such as Japan, and a release in Australia is expected within six months.
The Nissan executive noted that the Leaf’s V2G system has the potential to help homeowners save money, especially if the vehicle charges through a rooftop solar system during the day, and uses its stored energy to power appliances and lights at night.
“The way we distribute and consume energy is fundamentally inefficient … what we need is flexibility in the system. It’s great that we’ve invested all this money in renewable energy, but fundamentally we’re wasting most of that energy because it’s all being generated in the middle of the day when we don’t really need it,” he said.
Tim Washington, CEO of charging solutions provider Jetcharge, noted that Nissan V2H technology has a lot of potential, considering that vehicles spend much of their time just parked, or in the case of electric cars, plugged in.
“Cars will be an energy asset first, and a mobility asset second. What I mean by that is you are going to use your cars probably more as batteries than as vehicles. As we know, vehicles are parked 90% of the time – that is one of the criticism leveled at cars. But what if they are the most efficient asset that you have because it’s doing work even when it’s parked? That’s when bidirectional charging comes into play,” he said.
While V2G technology has a lot of potential that even Tesla CEO Elon Musk recognizes, the Nissan executive’s casual dismissal of the 100MW/129MWh Hornsdale Power Reserve in South Australia seems misinformed at best. Since coming online, after all, the Powerpack farm, whose size is equal to around 2,500 40 kWh Nissan Leafs, has seen widespread acclaim for its speed and sophistication.
Even before it was officially activated, the big battery was called into action, injecting 70 MW of stored wind energy into the market; and just two weeks after it went online, it stepped in to support the grid when a coal generator in the region failed. This rapid response, which has pretty much changed the energy game in South Australia, would likely be pretty challenging to match with a fleet of Nissan Leafs. V2G definitely has its uses, and it will be beneficial to Nissan Leaf owners; but ultimately, big batteries like the Hornsdale Power Reserve are on a completely different level of energy storage.
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.
Tesla Energy has introduced the Powerwall Lease in conjunction with Tesla Electric, making the service available in Texas. This new option delivers whole-home backup power using two Powerwall units for a net monthly cost of $35 after credits, accompanied by a low fixed electricity rate.
Under the lease terms, customers pay a one-time order fee of $100. The base lease payment for the two Powerwalls is approximately $122 per month during the first year, subject to a 3 percent annual escalator thereafter. Enrollment in a qualifying Tesla Electric Backup plan or Virtual Power Plant plan provides an $87 monthly credit.
Powerwall Lease is now available with Tesla Electric in Texas
Whole-home backup for $35/month, with a low fixed electricity rate
– Two Powerwalls, $0 installation
– Storm Watch outage protection
– One app to manage it all pic.twitter.com/oTzqc6K3aF— Tesla Energy (@teslaenergy) August 13, 2026
This credit lowers the effective cost to roughly $35 per month plus applicable tax.
Installation of the standard system carries no additional charge. The package features Storm Watch for outage protection and allows complete management through a single Tesla application. The system supplies continuous whole-home backup capability.
The Powerwall system enables households to maintain electricity during severe storms that disrupt the utility grid. When outages occur, the batteries automatically provide seamless backup power to the home.
Tesla announces 100k Powerwalls are participating in Virtual Power Plants
Tesla Storm Watch monitors weather forecasts and ensures the units are fully charged ahead of anticipated severe weather events so that power remains available throughout the disruption, keeping lights, refrigeration, and other essential systems operating without interruption.
Availability is restricted to select Texas locations where retail electric choice exists. Participants must lease exactly two Powerwall units and maintain continuous enrollment with Tesla Electric. Solar panels cannot be included under this particular lease arrangement.
The monthly credit activates automatically once the system is installed, receives permission to operate, and enrollment is confirmed. To retain the credit, customers are required to stay enrolled in Tesla Electric and fulfill all program conditions.
Nonstandard installations that involve electrical upgrades or special permitting may lead to extra expenses and might impact eligibility for the credit, so be sure to check with either your installer or Tesla to ensure you will still qualify.
Elon Musk
Inside Tesla’s secretive $10 Billion “Project Crystal Sun” filing
Tesla filed for a $10.1 billion Fort Bend solar factory, but the site isn’t confirmed.
Tesla has filed paperwork in Texas for a second massive manufacturing project in the same week it locked down its chip fabrication site, this time for a $10.1 billion solar cell plant in Fort Bend County. The filing, submitted July 22 under the state’s Jobs, Energy, Technology and Innovation Act and first surfaced by Sawyer Merritt on X, lists an internal project name of “Project Crystal Sun” and targets a site off FM 762 and FM 1994 near Richmond, about 40 minutes outside Houston.
Tesla is planning to build a $10.1 billion vertically integrated solar cell manufacturing facility in Fort Bend County, Texas, about 40 minutes from Houston, according to a new public application filing.
Tesla is aiming to start construction this year and finish in 2028, with… pic.twitter.com/f3HIK5HGST
— Sawyer Merritt (@SawyerMerritt) August 7, 2026
The application, prepared by Kroll Tax Services on Tesla’s behalf, spans five parcels totaling roughly 3,000 acres within the Lamar Consolidated Independent School District. Tesla wants a 10 year property tax limitation in exchange for the investment, split as $1.5 billion in real property and $8.6 billion in equipment and personal property. The company projects 9,712 permanent jobs once the plant reaches full operation, with 1,147 peak construction jobs during a build window running from this year through 2028 and commercial operations targeted for the first quarter of 2029.
Tesla is not fully committed to Fort Bend County yet. The filing states the company is weighing the site against an unnamed out of state alternative, and frames the tax abatement as what would make Texas competitive against that option. If the district and county decline the incentive, Tesla says it may build elsewhere.
Tesla Megapack Megafactory in Texas advances with major property sale
The plant would handle the full solar cell production chain in one facility, according to the filing, covering wafer and ingot manufacturing, coating, metallization and printing lines, cell testing, automated material handling and cleanroom infrastructure. That scope points to Tesla vertically integrating a part of its supply chain it currently sources largely from overseas partners, mirroring the approach behind its expanding Megapack production in Brookshire, Texas, where Tesla has already built out two buildings for its grid battery business.
The timing lines up closely with Tesla and SpaceX’s other big Texas commitment this month. SpaceX confirmed its Terafab chip factory would land in Grimes County days before this filing surfaced, with construction on that $16.8 billion project starting almost immediately after local officials met with residents. Terafab is meant to produce the AI chips running Tesla’s Optimus robots and Full Self-Driving software, while a solar cell plant would feed a different part of the business, the panels and storage systems Tesla sells to homeowners, businesses and utilities, and increasingly needs to power its own data centers.
Musk has talked about building domestic solar manufacturing capacity before, tying it to the amount of power Tesla’s AI ambitions will require.
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