Energy
Tesla poised to unlock vehicle-to-grid abilities with ‘bi-directional’ charging systems
It appears that Tesla is building up to the eventual release of vehicle to grid (V2G) features for its fleet. Hints of this technology could be seen in the codes within the company’s vehicles, as well as the recent findings of Cruise Staff fleet Reliability Engineer Marco Gaxiola, who happened to perform an analysis of Tesla’s electric vehicle charger for the Model 3.
For the most part, Tesla has been pretty quiet about its intentions to roll out a vehicle to grid feature for its fleet. Elon Musk mentioned that it may be worth revisiting V2G in a tweet back in July 2018, but he has been quite silent about the technology since then. That being said, Tesla hacker-enthusiast @greentheonly mentioned that some references to V2G have actually been in the company’s vehicles for over a year.
Among this is the presence of logic that would allow DC to flow out of a Tesla’s battery pack. The hacker-enthusiast summed up his observations as follows “There’s logic to allow DC to flow out the battery pack. So you can supply an external grid-tie invertor with that and let it do the rest of the magic. Making it part of the HPWC would make a lot of sense in my view,” he wrote.
Vehicle to grid features are not new in the EV sphere. The Nissan Leaf, one of the first mainstream electric cars, had this feature, though its V2G technology could be used more like a manual backup power supply. This made the Leaf’s V2G solutions rather limited. But when V2G is taken at scale, and if vehicles are in smart communication with the power grid, things become a lot more compelling.
Back in 2015, Tesla CTO JB Straubel noted that once there are a million Teslas on the road, the fleet could actually have significant controllable load capacity. This milestone was reached recently by Tesla, with the company producing its millionth vehicle, a red Model Y Performance, earlier this year. And considering that Tesla is now taking on the mainstream market with the Model Y and Model 3, there is a good chance that the growth of its fleet would only accelerate over time. If Tesla were to roll out V2G features for its cars, now, or the near future, would be a preferable time to do it.
But this is not all. In a recent statement to Electrek, Cruise Staff fleet Reliability Engineer Marco Gaxiola noted that the Model 3’s charger has the necessary technology to enable bidirectional charging features. Gaxiola came to his conclusions after doing a deep dive on the Model 3 charger. “What I learned on reverse engineering the Model 3 charger, was that the design is fully bidirectional. This means power can be converted from AC to DC the same way as the previous example, but also power can flow in reverse direction, coming from the battery and ending up on the AC side,” he told the publication.
In a following LinkedIn post, the Cruise engineer noted that Tesla would likely be able to roll out its V2G features to its fleet through a software update. This could open up a lot of opportunities for electric car owners, as they could actually sell some of their vehicles’ power back to the grid.
“I believe this will be a big game changer for all the car companies looking to get into the EV market. But will also be an interesting new road to get into the utility market. Imagine that you own this vehicle, and one morning you receive an update notification that will enable this feature, which will convert your vehicle into an energy storage V2G/V2V smart system with wheels.
“You will technically be able to take energy from any AC outlet at a good rate (via your traditional L1 or L2 wall charger) and later then drive somewhere else, plug back again into another L1/L2 charger, but instead of charging you could potentially sell some of your Tesla juice back at a higher rate. This, without the need of any electrical modifications on your Tesla/Non-Tesla wall charger,” Gaxiola wrote.
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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