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> they’d be able to make 200,000 semis a year But 0 other cars. > it could most certainly make a ton of sense compared to diesel for consumers Not in most ca

> they’d be able to make 200,000 semis a year But 0 other cars. > it could most certainly make a ton of sense compared to diesel for consumers Not in most cases when you factor in reduced cargo load due to the 10,000 pound battery and recharging time. You need megawatt charging to get charging time to less than an hour. You won't be able to charge many at the same time with that much current draw. You might even have to warn the power company that you are going to start charging one. https://youtu.be/o3dCDNIRM34?t=567 https://youtu.be/o3dCDNIRM34?t=567 Tesla has been very reluctant to reveal how much the truck can haul but they seem to have accidentally revealed when bragging about how fast the truck can go up hill in the video timestamp I linked to. Tesla said that a truck carrying only 11 jersey barriers on a flat bed weighs 82,000 pounds. This means that the truck is incredibly heavy.

Robotbeat 4y ago
There isn’t a reduced payload, in part because electric semis are given a ton or two extra weight limit and also just the heroic efforts of the Tesla engineering team. The thunderft video you linked to makes the usual bad faith assumptions for his channel (cherry-picking numbers). 11 jersey barriers (using the typical value you can Google) is about 40,000 pounds, which is a full payload. The Megawatt charging is not a huge deal as Tesla already deploys supercharging stations with dozens of 250kW chargers (they’re started to build some with over 100 chargers, so even with shared capacity, you’d be able to charge a dozen Semis at once). With 500 miles range, you can easily hit your 13 hour daily limit with the regulation-mandated rest (while charging) at mid-day or dinner time. Neglecting the fact that not every electric truck needs to do long-haul. The short haul market alone will be plenty big enough for a while as Tesla and others ramp up.
- HyperSane 4y ago
  > There isn’t a reduced payload If a Tesla Semi carrying 11 Jersey barriers on a flatbed weighs 82,000 pounds then their absolutely is a reduced payload. There HAS to be a reduced payload because lithium ion batteries have a MUCH lower energy density by mass than diesel fuel. > The Megawatt charging is not a huge deal as Tesla already deploys supercharging stations with dozens of 250kW chargers Absolutely NONE of these can actually charge a Tesla Semi AND 250kW is 1/4 of 1000kW.
  - Robotbeat 4y ago
    Do you know how much Jersey Barriers weigh? They weigh about 3600 pounds, so total weight is around 40,000 pounds, a full load for a semi. Thunderft used an unrealistically low figure, as is usual for his bad faith debunking videos. There’s nothing particularly difficult about 1MW charging, there are already standards for this. (Tesla is part of the standards body, and they’ll either use the standard themselves or improve and adapt it to their purposes like they did with Chademo…) Tesla Semi prototypes in the past have used multiple 250kW connections. This is not some big gotcha, and honestly thinking there’s something impossible about 1MW just shows ignorance of the state of vehicle electrification. Your concern about grid connection literally is addressed by pointing out existing Tesla supercharging stations provide far greater aggregate power already.
    - HyperSane 4y ago
      The only reason we have to try to guess from the video is because Tesla doesn't reveal how much the damn thing weighs. Why has Tesla been so reluctant to reveal something as fundamental as how much the Tesla Semi weighs? > There’s nothing particularly difficult about 1MW charging Other than, you know, actually supplying a freaking million watts of electricity. And what if you need to charge ten at once? You really don't seem to grasp just how much electricity that is.
      - Robotbeat 4y ago
        10 Semis at once is not that big of a deal. The Tesla Supercharging stations at Harris Ranch in California have 98 250kW stalls total (plus some Charge America stalls at the same location), that’s easily enough to charge 10 Tesla Semis simultaneously. “You really don't seem to grasp just how much electricity that is.” What kind of argument even is this, considering Tesla supplies this much electricity to their charging stations today? It costs money, but Tesla is pretty good at building these things out affordably, sometimes including on-site buffering of the power using Megapack grid storage and on-site generation of solar. About one-fifth the price of their competition in building out DC fast charging: https://electrek.co/2022/04/15/tesla-cost-deploy-superchargers-revealed-one-fifth-competition/ https://electrek.co/2022/04/15/tesla-cost-deploy-supercharge... (Although I suspect and hope their competition will catch up here.)

Robotbeat 4y ago

There isn’t a reduced payload, in part because electric semis are given a ton or two extra weight limit and also just the heroic efforts of the Tesla engineering team. The thunderft video you linked to makes the usual bad faith assumptions for his channel (cherry-picking numbers). 11 jersey barriers (using the typical value you can Google) is about 40,000 pounds, which is a full payload. The Megawatt charging is not a huge deal as Tesla already deploys supercharging stations with dozens of 250kW chargers (they’re started to build some with over 100 chargers, so even with shared capacity, you’d be able to charge a dozen Semis at once). With 500 miles range, you can easily hit your 13 hour daily limit with the regulation-mandated rest (while charging) at mid-day or dinner time. Neglecting the fact that not every electric truck needs to do long-haul. The short haul market alone will be plenty big enough for a while as Tesla and others ramp up.

HyperSane 4y ago
> There isn’t a reduced payload If a Tesla Semi carrying 11 Jersey barriers on a flatbed weighs 82,000 pounds then their absolutely is a reduced payload. There HAS to be a reduced payload because lithium ion batteries have a MUCH lower energy density by mass than diesel fuel. > The Megawatt charging is not a huge deal as Tesla already deploys supercharging stations with dozens of 250kW chargers Absolutely NONE of these can actually charge a Tesla Semi AND 250kW is 1/4 of 1000kW.
- Robotbeat 4y ago
  Do you know how much Jersey Barriers weigh? They weigh about 3600 pounds, so total weight is around 40,000 pounds, a full load for a semi. Thunderft used an unrealistically low figure, as is usual for his bad faith debunking videos. There’s nothing particularly difficult about 1MW charging, there are already standards for this. (Tesla is part of the standards body, and they’ll either use the standard themselves or improve and adapt it to their purposes like they did with Chademo…) Tesla Semi prototypes in the past have used multiple 250kW connections. This is not some big gotcha, and honestly thinking there’s something impossible about 1MW just shows ignorance of the state of vehicle electrification. Your concern about grid connection literally is addressed by pointing out existing Tesla supercharging stations provide far greater aggregate power already.
  - HyperSane 4y ago
    The only reason we have to try to guess from the video is because Tesla doesn't reveal how much the damn thing weighs. Why has Tesla been so reluctant to reveal something as fundamental as how much the Tesla Semi weighs? > There’s nothing particularly difficult about 1MW charging Other than, you know, actually supplying a freaking million watts of electricity. And what if you need to charge ten at once? You really don't seem to grasp just how much electricity that is.
    - Robotbeat 4y ago
      10 Semis at once is not that big of a deal. The Tesla Supercharging stations at Harris Ranch in California have 98 250kW stalls total (plus some Charge America stalls at the same location), that’s easily enough to charge 10 Tesla Semis simultaneously. “You really don't seem to grasp just how much electricity that is.” What kind of argument even is this, considering Tesla supplies this much electricity to their charging stations today? It costs money, but Tesla is pretty good at building these things out affordably, sometimes including on-site buffering of the power using Megapack grid storage and on-site generation of solar. About one-fifth the price of their competition in building out DC fast charging: https://electrek.co/2022/04/15/tesla-cost-deploy-superchargers-revealed-one-fifth-competition/ https://electrek.co/2022/04/15/tesla-cost-deploy-supercharge... (Although I suspect and hope their competition will catch up here.)