A new battery system and an aerodynamically optimized cab give Scania’s electric big rig an edge over the Tesla Semi.

  • SaveTheTuaHawk@lemmy.ca
    link
    fedilink
    English
    arrow-up
    2
    arrow-down
    3
    ·
    1 month ago

    That’s Fuel Energy Content =7490kWh with a Usable Electricity =2247kWh

    Please people, stop doing this sophomoric math.55% of the energy in Diesel is wasted as heat and noise.

    Stop getting science from YouTube.

    • boonhet@sopuli.xyz
      link
      fedilink
      arrow-up
      3
      ·
      1 month ago

      Isn’t the rate quoted actually less efficient than the ~45% efficiency of a diesel engine? Seems like they went for 30% efficiency.

      The noise is irrelevant unlike the waste heat, too. It can’t be that much energy given that tire noise takes over at any real speed (tire noise actually being worse for EVs since the batteries are heavier).

      But that’s nitpicking at this point. As long as you can steal electricity from somewhere, these trucks are going to be hella cheaper to run than diesels that require a ton of maintenance.