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I'm one of those people, and you are correct. On our TOU plan, the off-peak window is only 6 hours (12-6 am). We have a Rivian charger on a 60A circuit and get about 22 mi of range per hour, for a max total of about 132 miles added range during that window. That's enough for our daily use case, charging to 70% overnight and still having more than 20% "in the tank" at the end of the day.
That’s a nice setup for now and future use. Well done.So just as a follow up I decided to run a 100 amp circuit to a new sub-panel in the garage with a 70 amp circuit to the EVSE. The sub-panel is right next to the EVSE so it functions as a local disconnect.
Running #2 wire between the main panel and the subpanel, and #6 between the subpanel and the EVSE (Chargepoint Home Flex). So now if we ever upgrade the EVSE, all we need to worry about is the 2 feet between the sub-panel and the EVSE.
I hope they don't just make a new J1772 standard that supports up to 180 amps
. I have the chargepoint home flex on a 60 amp breaker and love it. At 23 miles an hour it‘s pretty easy to get to 70% daily, it’s roughly 1.2 hours per 10% gain.Well even if there is a new higher amperage standard the Rivian will still be limited to 48 amps. And I thought Xcels TOU off peak was 7pm to 1pm for the Denver area?So just as a follow up I decided to run a 100 amp circuit to a new sub-panel in the garage with a 70 amp circuit to the EVSE. The sub-panel is right next to the EVSE so it functions as a local disconnect.
Running #2 wire between the main panel and the subpanel, and #6 between the subpanel and the EVSE (Chargepoint Home Flex). So now if we ever upgrade the EVSE, all we need to worry about is the 2 feet between the sub-panel and the EVSE.
I hope they don't just make a new J1772 standard that supports up to 180 amps
I'd probably consider putting in a DCFC at home if my off-peak was that short. There's been occasions where I've gotten home with a nearly dead battery around midnight on Sunday and it wasn't enough to get me back up to 85% for the next day.
You can pay for a hell of a lot of non-off-peak kWh for the cost of even a smaller DC charger.
Six hours charging at 48A is plenty for our day to day, but I'd be nervous at less than 48A. As the industry evolves, I just hope the trend is toward making battery packs more efficient instead of just making them bigger. I have to think that will be the case given the scarcity of materials and search for every competitive edge.
Does the fused disconnect require anything else other than the conduit coming into it from the panel and the conduit going out of it to the charger?
Somethings not adding up here, a 14-50 is a 50 amp max plug, how did you get a 60 amp circuit on there, that said I think the Chargepoint limits to 40 amps of charging if using a plug, which is 80% of what the plug should be supporting. Chargepoint only goes up to 50 amps if it's hardwired.
