How Many EV Charging Stations Does the US Need to Replace Gas Stations?

Re:How Many EV Charging Stations Does the US Need to Replace... by toast0 on Monday May 27, 2024 @05:14PM (#40494781)

In a (large, recently constructed) garage, it seems likely that you've got multiple circuits with outlets. If you've got multiple outside outlets, they're probably all on the same circuit. If the hots are the same phase, I don't know if there's a way to determine if they're behind the same breaker or not. If the hots are on different phases, you need to return to each neutral or the gcfi that's likely to be present on an outdoor outlet will trip.

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Re:How Many EV Charging Stations Does the US Need to Replace... by applied_heat on Monday May 27, 2024 @11:13PM (#40496990)

>I don't know if there's a way to determine if they're behind the same breaker or not.

Turn the breaker off and plug something in and see if it turns on

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Re:How Many EV Charging Stations Does the US Need to Replace... by toast0 on Tuesday May 28, 2024 @12:51AM (#40497434)

Well yeah, but it'd be a bad idea to make a charger with two 120v plugs, because chances are people will plug them both into the same circuit.

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Re:How Many EV Charging Stations Does the US Need to Replace... by philsnow on Tuesday May 28, 2024 @01:37AM (#40497652)

I'm not defending the idea of using two out-of-phase 110V circuits, but... this theoretical EVSE could detect its two inputs not being out-of-phase, blink its red "110V only" light, and only use one of the inputs to charge at 110V instead of 220V.

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Re:How Many EV Charging Stations Does the US Need to Replace... by applied_heat on Tuesday May 28, 2024 @06:25PM (#40506271)

I’ve seen carpet cleaners where their machine had two 120v cords that needed to be on different breakers

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