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Damn 20kw is a ton! If it's over 11kw it would need a hardwired solution as generator inlet ports just go up to 240v 50amp (11kw) So discharging an R1 large pack (135kwh) from 80%>20% is 81kwh... So that would mean you need to fill up the Rivian every 4 hours. Doesn't seem that worthwhile...

I looked into the Delta Pro Ultra some more - it appears it can charge from 120v while inverting exporting 240v+120v. The only restriction it has is if it's charging at 240v then it can only invert at 240v, it will not power 120v loads.

Well sure. But then for a lease does it make sense to spend $6k on the V2G bidirectional charger?

Yeah I really wouldn't want my Rivian to be part of daily grid backup. I'd rather just use the battery when I drive it and not cycle it up and down while its sitting unused in my garage. Now a few times a year cycling on a power outage is totally fine and insignificant. But I'd need a hell of a...

I think a guy here posted how he had a DC charger from his Rivian AC power the delta pro DC input... If you have 2x of those chargers you could do each at 700watts and then let them both charge from the Rivian 24/7 into your delta pros

Yeah it seems way more useful to invest in a portable battery backup system that has dozens of other uses than invest in a currently non-existent proprietary V2H charger that might be a useless brick once Rivian changes to the next gen of vehicles. Even if this thing gets released who knows how...

I have a bluetti 200L that can charge any limit from 0-2400 AC in while simultaneously exporting 0-2400watts. Tested with the Rivian works great. It's not 240v though. But really sucks the delta pro can't do that. Do you have delta pro 3 with the 240amp plug? I had read the original delta pro...

So what about using a Ecoflow Delta Pro3 power station? It charges at 1500 watts 24/7 from the Rivian (36kwH per day) and exports 240v 4000 watts to a generator interlock kit on the house electrical panel? $2k Delta pro $100 interlock kit Then also can use the Delta pro for other uses if...

I think the issue too is will this be CCS or NACS? What about compatibility with the R2 and R1gen3? Kind of sucks to put down so much cash for something that might be irrelevant in 18 months.

Thanks - yeah that makes sense I wonder what V2H watts would be - I'd imagine at least 7200 watts but maybe up to 12kw. So at 400v DC thats only 18 amps (7200w) or 30 amps (12kw). So not sure how expensive the cables would have to be. Thats less amps than the travel charger but 400v. I'm not...

So then V2H has to use 400v DC out and an external inverter. That sounds like it will be crazy expensive no matter what.

Yeah I don't need an elaborate V2H system with electrical panels or such. Just something that could as you say get 240v 30amp port like the f150 and cyber truck have stock. Even the hybrid f150 with a gas engine can do that. Does the Rivian have the hardware to run the vehicles AC charger...

I suspect most people that believe a 14-50 new install is better aren't fully aware of all the advantages and disadvantages of both options. There's a lot of people out there that think its cheaper to get a 14-50. Many of them are pricing a nonGFCI breaker (violates current electrical code) or a...

I see the Dewalt price increased to $30. Interesting idea though. However I don't think there's enough power in a DeWalt battery for this to be much use. 18v*5AH is 90Wh. My R1 with a single 12v went through I think about 400Wh a day on the tender. I guess if you were camping or something and...

Its actually better than a 20% improvement due to power savings from the vehicle sleeping once charged. That exceeds increased heat loss. Heat loss can further be reduced by increasing wire size or a short wire run. A Nema 14-50 EVSE might have smaller wires than a hardwire unit so it actually...

Yes agreed. Many electricians will even put in the junk $7 Leviton ones from Home Depot. Those are for ovens/stoves, maybe an RV that cycle on and off. Those are not designed for something that is sitting for half a day nonstop drawing huge current like our power hungry R1. Most likely those...

Disagree with this - 99% of the time I strongly prefer to hardwire. If OP already has the expensive GFCI breaker and wiring that can't use 60 amps I can see the receptacle argument. This won't work with a Tesla Wall Connector though - you need an EVSE that is UL listed with a 14-50 plug from...

Problem is where do you buy a rivian 12v battery? Service center won't sell them, no auto parts store has them. Yeah you can spend the $800 to have rivian swap them but when I can spend $100 to put in a larger 12v battery on an ICE vehicle it's pretty ridiculous you cant buy one for a Rivian.

If it's never going green your battery is never getting full. 1 amp is only 12 watts, although over 24 hours that is 288 Wh....I want to say I think mine was closer to using 400Wh a day but I'm not sure. Yeah will be curious how 3amp charger changes your results. Even 2 amp charger might be enough.

No - I don't see any risk with the tender.