See, Apple? Even cars can do it :)

  • sushibowl@feddit.nl
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    4 months ago

    Honestly, I think it may be possible to build entire roads with enough crushed metal elements in the asphalt/concrete and a slight low power charge throughout the entire surface would be able to keep any vehicle battery at a steady charge.

    You might be underestimating how much power a car consumes while driving. For example, a Tesla model 3 has an efficiency of about 130 Wh/km in mild weather at highway speeds. Assuming that on the highway you’ll travel 100 km/h, that means you’ll use 130*100 = 13.000 Wh/h, a constant power draw of 13kW. That’s enough to power perhaps 8-12 houses on average.

    A km of road could have, let’s say, 200 cars on it (4 lanes, 20m per car). That means you’d need to pump about 2.6 megawatts of power into every kilometer of road to keep them all topped up.

    EDIT: fucked up math

    • Crashumbc@lemmy.world
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      4 months ago

      And that doesn’t seem to take into account transmission losses. Even the best wireless phone chargers are maybe 70% efficient. This may hit 40% if you’re lucky. So double that figure.

    • Sentient_Modem@lemm.ee
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      4 months ago

      Does using a period in your number not cause confusion? 13.000 vs 13,000. I first read it is 13 since the zeros mean nothing following a period where im from. No shade, just curious.

      • sushibowl@feddit.nl
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        4 months ago

        Apologies. I’m from a country where the meaning of the period and comma is reversed compared to the US, so I did it this way out of habit.