GM Will Add Bidirectional Charging Capabilities To All Ultium-Based EVs - Slashd...
source link: https://hardware.slashdot.org/story/23/08/08/2237214/gm-will-add-bidirectional-charging-capabilities-to-all-ultium-based-evs
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GM Will Add Bidirectional Charging Capabilities To All Ultium-Based EVs
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GM states its expanded V2H access will be supported by the rollout of the Ultium Home bundles previously announced, although we still do not know how much this technology is going to cost homeowners. GM says that additional details of expanded V2H technology and the specific timings of its rollout to the models mentioned above will be revealed at a later date. In the meantime, check out GM's latest sizzle reel showing off some of the incoming capabilities of its Ultium EVs, including a shadowy peek at the aforementioned Escalade IQ.
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As long as they don't have CarPlay, they're losers.
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From a manufacturer perspective, adding bidirectional charging makes a ton of sense. Kill your battery sooner, so that you'll need to buy a new one. From a consumer perspective: Are you guys high? Why would you kick your battery in the balls just to power up your PlayStation or whatever? Ahahaha. So silly. (The reason is obvious: people don't see in terms of long term numbers.)
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I live in an area that regularly exceeds 105 degrees in the summer, have an unreliable power company, and I have small children including an infant and a child with asthma. If my power goes out for any extended period of time, I have to leave my home. I have two Powerwalls and solar to keep the lights and AC on for a period of time, but it doesn't go indefinitely. If I can use my car's battery for emergency backup, we can survive for far longer without utility power.
It's not just AC. It's charging phones fo
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The largest things which contribute to lithium battery degradation are temperature, how fully they're kept charged, and what voltage is applied when charging. Power cycling does matter, but not that much. And anyway, just how many power cycles would this add to a battery? Usually we talk about these as storage options for solar panels, right? So maybe a partial discharge once per night.
i recall something about NASA getting 40,000 cycles out of its satellite batteries just by reducing their maximum charge -
Most of the use cases for v2g don't really involve drawing massive amounts of power from the vehicle battery for long periods of time. If you want to have a solar system and have storage for use overnight on a regular basis, you'll want something better suited to do that, like a big LiFePO4 pack. Likewise you won't want to be juicing your car to 100% every day so you can run your AC overnight and still leave with 80% SOC in the morning -- v2g is simply not well suited for storage/arbitrage applications.
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So if an eHummer driver comes upon a stranded eHummer driver, can he transfer 20% charge or whatever it takes to limp to the nearest grid charger?
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No, because doing so would be against the code. The only appropriate response is to do a burn out in front of them (ie, yelling "losers!"), or to tow them (willingly or unwillingly) to the nearest junkyard, minigolf, or Dave & Busters.
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In theory, yes, but they would need to provide a cable to connect between the two, likely with some control circuitry to make it all work. But if you have an EV like the Ford F-150 Lightning that has a 240V outlet, you could just plug in a standard mobile charger and charge the stranded vehicle.
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That would be incredibly slow. Much faster to just tow them to the nearest charging station and dump them there so they can wait around for hours charging while you go back to your own bidness.
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Depending on the vehicle you could get upto 40 miles of range per hour. Say it's 30 miles, that's two minutes a mile. If you're three miles from the charging station, then it's six minutes to charge enough to get there. Not horrible.
Of course, you really have to try to run out of charge in an EV. They do a really good job of telling you how far you can go and how far it is to the next charging station.
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That’s why it’s customary to throw a big chain on it and forcibly drag the low charge vehicle as it regen brakes to fast charge on the go. Preferably with sparks.
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Hummer EV powerstation provides 6A 240V outlet and supports an EVSE on the outlet for v2v charging
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I'm not justifying it, I'm just saying its supported. The 3kw is a continuous supply number; it's not derated like you would a residential breaker. Anyway charging v2v is really for an emergency situation, so I don't really see how any of the stuff you said really matters in the first place. If you are dead in your tesla in the middle of a -9F winter day and a guy comes up in an electric hummer, the correct move is to get in the hummer and GTFO, not try to charge your freaking car, jesus.
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"...although we still do not know how much this technology is going to cost homeowners."
I'm sure that GMAC financing will be involved. They won't be able to resist rent-seeking. -
All vehicles that have DC fast charging of any sort (essentially every EV of the modern age) are already "V2H capable" because they are able (with hardware already in the car) to bridge the main pack directly to the charge port whereupon an EVSE (Electric vehicle supply equipment) with an inverter so equipped can be cajoled to output unimaginable amounts of power. Think reverse supercharger. Yes, sir, your car is capable of delivering it's rated peak horsepower directly into the mains (appropriate power con
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Isn't capitalism efficient?
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Compared to what? Is Cuba or North Korea actually way ahead in the EV game and just doesn't want to tip us off?
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Tesla strongly considered enabling this capability. They ran user tests sometime around 2012 or 2013.
As they watched how a test group used it, they saw a large number would charge up at free (silicon valley) company provided chargera all day. Then they would use the car to power the house at night or resell to the grid⦠reserving only enough to get back to work the next day. It was free energy after all, right?
The problem was cycling a battery from full to empty daily quickly deteriorates the
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