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Joined 1 year ago
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Cake day: June 11th, 2023

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  • Most if not all freight locomotives are diesel electric as well.

    You’re just not going to beat the energy density of diesel. 1 gallon of diesel fuel has roughly 40kwh worth of energy in it. Modern diesel motors are around 35% efficient.

    So you’re looking at ~14kwh of useable energy from 1 gallon of diesel, weighing 7 pounds. So 1kwh is around 0.5lbs.

    1kwh of EV battery currently weighs ~13-14lbs based on the model 3s battery capacity and weight as well as the Hummer EV.

    So on a train or truck with a 5,000gal tank (just using the AC600X locomotive as an example), you’re talking 35,000lbs of carried fuel and 70,000kWh of useable energy.

    To carry the same energy, you would need 910,000-980,000lbs of batteries. Twice the weight of the locomotive itself. Even if we increase the density by a factor of 10, you still need almost 3x the weight of batteries as you do diesel.

    And the time to charge a 70MWh battery would be insanely prohibitive. Like a few days each time. With a 1MW charger you’re looking at minimum 70 hours if you could run at peak power with no losses. Realistically more like 80 hours with how chargers slow down as the battery gets full and charging losses.

    Natural gas could used to be a little bit cleaner, but CNG vehicles use 12-15% more fuel to get the same power than diesels so it would really be a wash on CO2 emissions. And you would have to replace every diesel engine out there along with all the infrastructure just for a less efficient power source. Natural gas is phenomenal for large scale power plants, not as much for ICE vehicles.

    It’s the same issue with large ships. You just can’t beat the energy density of petroleum. And ships use the nastiest byproducts of oil refining already because they’re so cheap. Banning using bunker fuel would just cause them to switch to diesel for a little more rather than go full EV. Going back to sail boats is going to happen before EV boats lol.

    Same with planes. Batteries are just too heavy for aircraft in any large capacity. Plus it’s not like we really want a bunch of giant flying lithium bombs overhead. Putting out an EV fire is already insanely difficult. Imagine trying to put out the fire from a battery 10x larger that crashed in the woods somewhere.

    Diesel isn’t going anywhere any time soon. I would imagine we start producing more biodiesel before the really heavy machinery goes full electric. And as long as there is diesel in use, it’s gonna make its way to consumers in large pickups because diesel can’t just sit around forever and companies are gonna do whatever they can to keep production high to make money.












  • Because unless they have been outright lying in all of their specs, the entire body is made up of the same thick stainless steel that they have shown to be literally bulletproof.

    It’s 4x as thick as current sheet metal used in other vehicles, and twice as thick as the steel bumpers used in old cars that didn’t have crumple zones.

    That combined with the fact that they have stated that all of the strength and rigidity for the truck comes from the exoskeleton, that would preclude being able to crumple.

    They have not made safety a priority in anything on this monstrosity. The windows are are all laminated and shatterproof, meaning you can’t break them to escape if there’s a fire or you end up underwater and the body is bulletproof meaning that it can’t be torn open with the jaws of life if you need to be extracted.

    It’s a giant metal coffin.





  • You own it as long as they have a license to host and stream it.

    They should be offering refunds for this at least, but you literally cannot own something that permanently lives on someone else’s device.

    If you want to truly on something, you need to control physical access to it. If there is an option to download the media when you buy it, and you can store it on your own device, then you own it. If not, then you only have access as long as you’re paying someone else for access to their storage.