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Doesn't a 48V DC installation provide a very reasonable compromise? That's what I use for my off-grid solar installations, and it works pretty well. 4x less am
by jwr 3y ago
Doesn't a 48V DC installation provide a very reasonable compromise?
That's what I use for my off-grid solar installations, and it works pretty well. 4x less amps, and you still get a safe voltage.
- creeble 3y agoYes, but there aren't many 48V DC appliances -- radios, lights, gauges, etc. Many larger boats have 24V DC systems, and there are quite a few boat electronics that run on either 12V or 24V (though you will still need either a 24->12v converter for many things, or be able to tap 12v from the battery bank).
- rini17 3y agoDC-DC buck converters got incredibly cheap and efficient, every small appliance can have one.
- LeifCarrotson 3y agoYep, that's a great compromise. 40V, 56V, 80V, 48V outdoor power tools use the same voltage for many of the same reason (they're slowly moving away from 18V battery packs for anything high-power). Maybe after a few decades, RV suppliers will standardize on 48V DC lighting circuits, a standard 48V DC receptacle, and provide fans and smoke detectors and pumps and sensors and so on that run on 48V DC. Integrated circuits will emerge in quantity designed to rectify 48V down to whatever the LED drivers and microcontrollers and so on use, and eventually compete in economies of scale with those used in the 12V automotive world. But good luck finding those parts today.