iqisoverrated


























  1. Call me back in 2-3 years and show me the maintenance bill of something operated in seawater. Then we'll talk.

  2. They are aimed at young drivers (restricted license you can get at 14 to 16 depending on the country you live in). Cars for this type of license are legally limited to 45km/h.

  3. Thinking of at what C-rate that battery was being stressed makes my head spin.

  4. If you charge daily then that's sub 10kWh on average. As this is a 6kW charger (see post by OP further down): If you come to work in the morning - as most people do - then you should be done charging well before the high prices hit.

  5. The range is really sufficient for city driving. On the other hand buses do tend to use a lot of power for AC/heating (particularly since quite a bit of any energy expended in this manner is lost at every stop). But the range given indicates tat this bus should be able to do a regular shift...as I am 100% certain they have tested/calculated themselves before buying them.

  6. You can fuse hydrogen if you want to. The sun does it all the time. (At the end of its lifetime also helium and other, heavier elements)

  7. Per nucleon binding energy does start to fall in nuclides heavier than 62Ni, but falling apart (alpha decay, cluster decay or spontaneous fission) would not increase the total binding energy for nuclides with mass numbers below about 100.

  8. Doesn't really work (yes I know the paper this is based on) since this contradicts the relative abundance of iron vs. nickel in the universe (there's more iron out there than nickel)

  9. Because everyone else in the region has plenty of sun, too?

  10. This is the primary reason I own a Tesla - the Supercharger network in unmatched. Recently did a 8 hour each way road trip and the car did all the work on telling me when and where to charge and for how long. Only had to technically stop at one SC but ended up doing two charges so as to not arrive with a really depleted battery (even though there was a SC at the destination.)

  11. Exactly. Set target location and let the nav do the rest. SCs just work plug-and-play. There are usually plenty open stalls (I tend to have my longer drives at night to avoid road congestion and also any kind of waiting time at chargers).

  12. Been saying this for quite a while. People overlook the potential of VPPs.

  13. > I don't get is why the cars aren't capable of V2G or V2H

  14. th thing is: VPPs have been on the radar of Tesla for quite some time. They seem to be incredibly good at leveraging synergies between their products, but for some reason they missed this one? Seems unlikely.

  15. Creep mode (available e.g. in Teslas as a toggle switch) to simulate creeping forward when you let off the brakes.

  16. I've never had it on, so I can't tell you. I find 'creep' unintuitive. If the car is stopped I expect it to stay stopped.

  17. I just had an idea. Shouldn't it be pretty easy for the great engineers at Tesla to calculate the wear on the batteries from being used as energy storage and based on the usage the warranty is dynamically adjusted. The customer gets up to date warranty information and ofc would be fine with it because he is earning money with the battery, so expectations are set and its obvious to customer that the battery will die sooner. You can do alot of cool statistics and forecasts I would say to make it easy for the customer to understand the value he gets for offering the car battery as part of a virtual power plant. Only thing is, Tesla is maybe against it because it would be competition to their own Powerwalls.

  18. If you could contribute let's say 10kWh a day (which is about 1/7th of a cycle per day or roughly 50 cycles a year of a battery rated for 1000 cycles)... at 2$ per kWh that would net you 7300$ a year.

  19. Agreed. I just took the extreme case. But even if we halve or quarter that figure (heck, even if we take a tenth of that) then that's still a significant potential income which adds up over the lifetime of the car to significantly drop the TCO.

  20. Possibly. But once the vehicle transfers on death, if they have the VIN and they can call Tesla and they’ll tell them where it is.

  21. Dunno if Tesla can tell. The battery is likely dead by now.

  22. With market share of combustion engines in the single digits this is a bit of a no-brainer. If you have no sales of a product you stop selling that product.

  23. Now we really need the cars and wallboxes to become V2G/V2H capable (why isn't this standard?). Imagine the magnitude if just 20% of all cars on the road were to offer 20% of their battery capacity for grid stabilization purposes. That's even beyond robotaxi. You could make money with your car while it's parked.

  24. If I remember correctly, the problem with V2G is that your car battery life would degrade faster. Hence why it’s better to have a stand alone system for residential applications. Plus, certain battery mixture works better for home applications which doesn’t lose its capacity even after frequent charge/discharge, but the tradeoff was that it’s heavy. Hence why it’s better for use as a static battery system.

  25. That really depend on what C rates you set this at (ratio of charge/discharge to battery capacity, dropping the unit 1/h). At low C rates there is no noticeable degradation.

  26. Well… how possible is it that a new desalination tech comes out of nowhere and crushes all these companies? That would be my fear

  27. Can companies not switch technologies when they build new plants?

  28. Dealerships take trade-ins. You can currently sell some EVs for more than you bought them for. (But seriously: why would you want to sell an EV? It's not like they fall apart like ICE vehicles)

  29. Na ja was die Banken in ihren AGBs stehen haben ist dem Finanzamt ja erstmal egal.

  30. Sobald das Geld auf seinem Depot war hatten die Eltern keinen eigenen Zugang dazu. Das war eine Schenkung. Zu diesem Zeitpunkt hatten sie keinerlei Handhabe für eine Rückgabe des Geldes.

  31. Ich würde vermuten, dass so ein hin- und herüberweisen nicht notwendigerweise als zweifache Schenkung interpretiert werden muss, sondern auch als (zinsloser) Privatkredit gehandhabt werden kann. Dann wäre nur der Gewinn als Schenkung zu betrachten. Also das, was

  32. In dem Fall zählt nicht der ganze Betrag als Schenkung sondern die nicht gezahlten Zinsen eines zinslosen Darlehens (gesetzt als 5,5%).

  33. Well, the 20mn per year number by 2030 is pretty...erm...optimistic (and I say this as an absolute Tesla bull)

  34. Notgroschen kommt bei mir auf den Lebensstandard an. Sollte so sein dass ich den Ausfall von Dingen des Alltags (also z.B. Auto um den Baum gewickelt) verschmerzen könnte und laufende Kosten für mindestens ein Jahr gedeckt.

  35. I don’t expect the eRupt Transmission to be a true manual, but I miss the sensation of gears changing in an EV. I also hate CVTs for the same reason.

  36. You miss it because in an ICE engine there's only a narrow rpm band where it gives you good power - so you could actually influence acceleration behavior by shifting. In an EV shifting gears would accomplish nothing. You'd get the same power when putting your foot down in the one gear or the other.

  37. What is this article blabbering about? Lithium isn't a "rare earth metal" (rare earth metals are stuff like ytterbium, niobium or dysprosium...which are used in permanent magnets but not batteries) Lithium is not rare on Earth by any stretch of the imagination. (That said magnesium is much more abundant, that much is true).

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