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.
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.
> 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.
“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-supercharge... (Although I suspect and hope their competition will catch up here.)