Skotty
2014 S P85 | 2023 F-150L
I myself have a NEMA 6-50 in my garage. I also have a GE Wattstation (a J1772 EVSE) plugged into it. I have been debating what to do when I get a Tesla. The HPWC is ideal, but how much will it cost to set up? Does it require 3 or 4 conductor wiring? Can it be limited to something less than 80 amps? The problem isn't just buying the HPWC, it's also that it completely throws away my 6-50 installation. It costs a lot to run wiring for 80 amps of current. With that much draw, it might even require a main circuit upgrade (my house is 200 amp, which is okay for a 6-50, but start pushing 80+ on one circuit and it seems an upgrade might be in order). If you have to upgrade the main, how much extra will that cost? Probably a ton.
If I don't need an 80 amp charge rate, and if it might cost a ton to do all the electrical upgrades and buy a HPWC, isn't it better to try to use what I already have? If they don't come out with a new 6-50 adapter, I could just charge through the GE Wattstation (which I picked in part because it can at least do 32 amps, not just 16 amps like some EVSEs). Would it be better to plug in through the GE Wattstation? Not so much if the main connection problem is between the UMC and the adapter, as either way will be using an adapter (right?).
There is a lot I don't know here. I was hoping by using a higher amp EVSE that plugs in to a NEMA outlet using some beefy 6 gauge wire would protect me from having to redo it all again on my next EV purchase. I have both a reasonable amperage J1772 EVSE plus a standard 240V 50A wall outlet. But maybe not.
Maybe Tesla should sell a 40A HPWC?
If I don't need an 80 amp charge rate, and if it might cost a ton to do all the electrical upgrades and buy a HPWC, isn't it better to try to use what I already have? If they don't come out with a new 6-50 adapter, I could just charge through the GE Wattstation (which I picked in part because it can at least do 32 amps, not just 16 amps like some EVSEs). Would it be better to plug in through the GE Wattstation? Not so much if the main connection problem is between the UMC and the adapter, as either way will be using an adapter (right?).
There is a lot I don't know here. I was hoping by using a higher amp EVSE that plugs in to a NEMA outlet using some beefy 6 gauge wire would protect me from having to redo it all again on my next EV purchase. I have both a reasonable amperage J1772 EVSE plus a standard 240V 50A wall outlet. But maybe not.
Maybe Tesla should sell a 40A HPWC?