After the whole Texas situation, its definitely a must-have now. Tesla quietly added this function early last year.There is also the Wallbox device, expected to retail for about $4000, that can provide bi-directional charging that would allow an electric vehicle to power a house. Not sure if Rivian would need to do something specific to accommodate that or if it would work regardless. Still, it would be nice if the Rivian would ship with that kind of capability, or at least offer a solution less than $4000.
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Wallbox Quasar bidirectional home DC charger will turn EVs into a huge Tesla Powerwall - Electrek
Here's why Quasar, a bidirectional DC charger for homes that is expected to retail for around $4,000, should be in every EV owner's home in a few yearselectrek.co
It also makes a stronger case for those electric jerry cans that Rivian filed patents for.For emergencies like Texas' recent grid failures, these options really begin to matter.
You can use your Rivian like a generator but I'm not sure on the total output it allows. If you have solar panels that don't automatically shut down when the grid goes down, you can of course charge the car that way. At the very least, power a space heater and/or perhaps a small fridge/freezer.