Tesla says it could have bidirectional charging in two years, but will it?
Tesla vehicles will be capable of bidirectional charging within the next two years, according to comments from Tesla VP Drew Baglino at today’s Investor Day event.
A question was asked during the Q&A portion about whether Tesla would move towards enabling bidirectional charging on its cars, noting the company’s historical reluctance to do so.
Drew Baglino, Senior VP of Powertrain and Energy Engineering, answered the question by noting that the lack of bidirectional charging was not really a conscious decision, but rather not a priority at the time. But, as Tesla has improved its power electronics units, it has found ways to reduce cost while also bringing bidirectional charging to its vehicles.
Baglino went on to say that this could happen within the next two years, as Tesla is currently within a retooling process for their power electronics manufacturing.
But immediately after this answer, CEO Elon Musk stepped in to pour a little cold water on the idea, stating that “I don’t think very many people are going to want to use bidirectional charging, unless you have a Powerwall, because if you unplug your car your house goes dark, and this is extremely inconvenient.”
The answer was interesting because it gives a little insight into what Tesla’s thinking has been about bidirectional charging all along.
Bidirectional charging is the capability of a car to not only take power to charge the battery, but to send that power back to power devices, a home, or even the grid. These are further categorized as Vehicle-to-load, vehicle-to-home, and vehicle-to-grid, or V2L, V2H and V2G respectively, and sometimes categorized overall as V2X.
Historically, Tesla has indeed opposed putting bidirectional charging systems on its vehicles. Most manufacturers have as well – only a few cars have bidirectional charging, and it’s often limited.
The Hyundai/Kia E-GMP platform cars are capable of V2L, Rivian is capable of V2L with potential V2H capabilities coming later, and Ford’s F-150 Lighting is capable of V2L, or V2H with its Ford Charge Station Pro. The Nissan Leaf is the only car we’re aware of with V2G capability, which has been built into the cars since 2013 but only recently got a charger that enables it, though Lucid has said they’re working on V2X for their vehicles as well.
So where does that leave us with Tesla? It sounds like they will have the technical capability of providing bidirectional charging, but as the answer was short, we didn’t get a lot of specifics on the various forms.
One reason Tesla hasn’t considered bidirectional charging a priority is because there are some reasons that an owner wouldn’t want to use it. For example, if you parked your car with 200 miles of charge and plugged it into the house, then the house or grid decided to discharge your car to take advantage of peak electricity rates (perhaps through Tesla’s Virtual Power Plant program), perhaps you’d be surprised to return to it to 100 miles of range – maybe you made some money, but now you can’t get where you were planning to go.
For this reason, you’d need to have robust controls and internet communications with the car, so that owners can manage demand, but that shouldn’t be hard since every Tesla has internet communications built-in.
The house going dark isn’t really a big concern, though, unless we’re talking about off-grid solar-only houses that use the car as their sole overnight energy storage or something. Otherwise, a home would simply switch to grid power when the car is unplugged. So Musk’s answer was, at best, quite glib.
Baglino also mentioned that there is more value in simply “charging the car at the right time,” rather than sending energy the other way. And this is true – while the dream of using millions of EVs as backup power for the grid is interesting, EVs can already help the grid just by charging at the right time, when excess energy is available, and by not charging at peaks.
Most EVs already do this, because many locations offer “time-of-use” rates allowing EVs to get cheaper electricity at night, which already works well at encouraging owners to charge at night instead of during peak electricity demand And in fact, Tesla even announced that very thing in today’s Investor Day event – they’re offering overnight charging for $30/month in Texas later this year, where their isoated grid often deals with a glut of wind at night with nobody to sell it to, such that wholesale prices occasionally go negative.
But these answers do indicate possible internal tensions over whether to add bidirectional charging capability to cars. This is something that many EV owners like in theory, but could perhaps open a whole can of worms in practice, and may not actually help Tesla to sell all that many cars anyway since it’s a rather small crowd of people clamoring for this feature.
Baglino’s answer showed that the technical capability is there, but Musk’s answer showed that perhaps Tesla still thinks that customers might be too confused or resistant to the idea of losing a certain amount of control over their vehicle and home’s energy usage.
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National Grid Renewables has broken ground on its 100 MW Apple River Solar Project in Polk County, Wisconsin.
The Wisconsin solar farm, which will use US-made First Solar Series 6 Plus bifacial modules, will be constructed by The Boldt Company, creating 150 construction and service jobs. Apple River Solar will generate over $36 million in direct economic benefits over its first 20 years.
Once it comes online in late 2025, Apple River Solar will supply clean energy to Xcel Energy, which serves customers throughout the Upper Midwest. According to National Grid Renewables, the solar farm will generate enough energy to power around 26,000 homes annually. It will also offset about 129,900 metric tons of carbon dioxide emissions each year – equivalent to taking 30,900 cars off the road.
“We are excited to see this project begin as it underscores our dedication to delivering clean, reliable and affordable energy to our customers,” said Karl Hoesly, President, Xcel Energy-Wisconsin and Michigan. “This project is an important step in those goals while bringing significant economic benefits to Polk County and the local townships.”
Electrek reported in February that Xcel Energy, Minnesota’s largest utility, expects to cut more than 80% – and possibly up to 88% – of its emissions by 2030, putting it on track to hit Minnesota’s goal of net zero by 2040. It also says it’s on track to achieve its clean energy goals for all the Upper Midwest states it serves – Minnesota, Wisconsin, North Dakota, South Dakota, and Michigan.
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Tesla has announced that it will finally deliver 500 kW charging as it is about to install its long-awaited V4 Supercharger cabinets.
The rollout of Supercharger V4 has been a strange one, to say the least.
Tesla has been deploying the new charging stations for two years and calling them “Supercharger V4”, but it has only been deploying the charging stalls.
Supercharger stations are made of two main parts: the stalls, which are where the charging cable is located, and the cabinets, which are generally located further back and include all the power electronics.
For all these new “Supercharger V4”, Tesla was actually using Supercharger V3 cabinets. This has been limiting the power output of the charging stations to 250 kW – although
Today, Tesla officially announced its “V4 Cabinet”, which the automaker claims will enable of “delivering up to 500kW for cars and 1.2MW for Semi.”
Here are the main features of the V4 Cabinet as per Tesla:
- Faster charging: Supports 400V-1000V vehicle architectures, including 30% faster charging for Cybertruck. S3XY vehicles enjoy 250kW charge rates they already experience on V3 Cabinet — charging up to 200 miles in 15 minutes.
- Faster deployments: V4 Cabinet powers 8 posts, 2X the stalls per cabinet. Lower footprint and complexity = more sites coming online faster.
- Next-generation hardware: Cutting-edge power electronics designed to be the most reliable on the planet, with 3X power density enabling higher throughput with lower costs.
Tesla reports that its first sites with the new V4 Cabinets are going into permitting now. The company expects its first sites to open next year.
We recently reported about Tesla’s new Oasis Supercharger project, which includes larger solar arrays and battery packs to operate the charging station mostly off-grid.
Early in the deployment of the Supercharger network, Tesla promised to add solar arrays and batteries to all Supercharger stations, and Musk even said that most stations would be able to operate off-grid.
While Tesla did add solar and batteries to a few stations, the vast majority of them don’t have their own power system or have only minimal solar canopies.
Back in 2016, I asked Musk about this, and he said that it would now happen as Tesla had the “pieces now in place” with Supercharger V3, Powerpack V2, and SolarCity:
It took about 8 years, but it sounds like the pieces are now getting actually in place with Supercharger V4, Megapacks, and this new Oasis project.
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Hyundai has a new secret weapon it’s about ready to unleash. To revamp the brand in China and counter BYD’s surge, Hyundai is launching a new AI-powered EV next year. The new model will be Hyundai’s first dedicated electric car for the world’s largest EV market.
With the help of Haomo, a Chinese autonomous startup, Hyundai will launch its first EV equipped with generative AI. It will also be its first model designed specifically for China.
A Hyundai Motor official said (via The Korea Herald) the company is “working to load the software” onto the new EV model, “which will be released in the Chinese market next year.” The spokesperson added, “The level of autonomous driving is somewhere between 2 and 2.5.”
In comparison, Tesla’s Autopilot is considered a level 2 advanced driver assistance system (ADAS) on the SAE scale (0 to 5), meaning it offers limited hands-free features.
With Autopilot, you still have to keep your eyes on the road and hands on the steering wheel, or the system will notify you and eventually disengage.
Haomo’s system, DriveGPT, unveiled last spring, takes inspiration from the OpenAI’s popular ChatGPT.
The system can continuously update in real-time to optimize decision-making by absorbing traffic data patterns. According to Haomo, DriveGPT is used in around 20 models as it looks to play a bigger role in China.
Hyundai hopes new AI-powered EV boosts sales in China
Electric vehicle sales continue surging in China. According to Rho Motion, China set another EV sales record last month with 1.2 million units sold, up 50% from October 2023.
Over 8.4 million EVs were sold in China in the first ten months of 2024, a notable 38% increase from last year.
BYD continues to dominate its home market. According to Autovista24, BYD accounted for 32.9% of all PHEV and EV (NEV) sales in China through September, with over half of the top 20 best-selling EV models.
Tesla was second with a 6.5% share of the market, but keep in mind these numbers only include plug-in models (PHEV).
Like most foreign automakers, Hyundai is struggling to keep up with the influx of low-cost electric models in China. Beijing Hyundai’s sales have been slipping since 2017. Through September, Korean automaker’s share of the Chinese market fell to just 1.2%.
Last month, Hyundai opened its first overseas digital R&D center in China to help kick off its return to the region.
According to local reports, Hyundai is partnering with other local tech companies like Thundersoft, a smart cockpit provider, and others in China to power up its next-gen EVs
With its first AI-powered EV launching next year, Hyundai hopes to turn things around in the region quickly. The new model will be one of five to launch in China through 2026.
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