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Cake day: June 21st, 2023

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  • zurohki@aussie.zonetoAotearoa / New Zealand@lemmy.nzHydrogen trucks are coming
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    2 months ago

    The inefficiency.

    If you need 100 kWh into the truck’s electric motor to drive somewhere, with a battery electric truck you need to generate around 120 kWh at the power station. After transmission losses, transformer losses, charging and discharging the battery, etc you wind up with your 100 kWh.

    If you’re driving a hydrogen fuel cell vehicle, you still have an electric motor and you still need 100 kWh to reach your destination. But you need to generate something like 400 kWh to actually get 100 kWh into the motor, and that 400 kWh of generation and grid transmission is what you need to pay for. Turning electricity into hydrogen and back into electricity is incredibly wasteful.


  • “I want my fuel bill to dramatically increase.” - no fleet operator ever.

    Battery trucks might not be able to do all routes yet, but they’re dramatically cheaper to operate on the routes they can do. Hydrogen vehicles cost so much per mile that they wind up just parked in a field and forgotten as soon as trials finish and funding dries up.



  • zurohki@aussie.zonetoLinux@lemmy.mlMm.. can someone help?
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    3 months ago

    If there’s something really important on that disk, don’t do ANYTHING, just unplug it and hand it over to a data recovery company.

    If there isn’t anything really important on there, go ahead and try and do it yourself.

    Paying $100 to a data recovery company can save you a ton of headaches if it has the only copy of your thesis on there and you mess it up trying to fix things yourself.