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DC transport is expensive. Low voltage high amp devices require very thick cables. Not an option even in your house.
by holoduke 6y ago
DC transport is expensive. Low voltage high amp devices require very thick cables. Not an option even in your house.
- wffurr 6y agoThat's why cars keep moving to higher voltage systems. 375V on Teslas, 400V on the Polestar 2. I doubt that's practical for home appliances.
- umvi 6y agoEven from the battery attached to your house? I'm not saying power every appliance, just have both DC and AC circuits in the home. DC circuit would power "DC native" things like LED lighting and computing devices, while AC would power "AC native" things like motors. By using AC everywhere we have to bundle AC/DC converters for every lightbulb in the house, and in my experience those converters are prone to failure way before the LEDs themselves.
- magicalhippo 6y agoJust to be pedantic, low-voltage transport is wasteful (expensive) compared to high-voltage transport of the same power (energy). That is because transport (cable) loss is a function of the current squared, while the transported power (energy) is a function of both current and voltage. Of course most appliances that want DC usually do so at a lower voltage (typically 5-24V), hence why they often go hand in hand.