Tips for using Rivian as power bank for storm

[Virtio]

I'm wondering what you have used this for. The website says
"The 14-50 outlet provides pure 240V (no neutral) and is not compatible with RVs or systems requiring split-phase 120V/240V power." That seems to me to imply you could not use it in a V2H scenario, since all the 120v circuits in a house require split-phase.

I have not used it myself. Apparently you need to add this box (https://tlyard.com/products/tlyard-v2h-power-converter-for-tesla-powershare) to create split-phase 240VAC so it's even more expensive. I was hoping that the solution would be closer to the cost of a similar output generator, about $1000. Anyway, hopefully there will be more options for devices like this as more EVs allow V2H/V2L ability.

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[KBabione]

A2Z (whose products I really like and trust) has a V2L Adapter:

Obviously not currently compatible, but it says it goes up to 20A which would allow up to 2,200W. For $82 it would be one of my first purchases as soon as Rivian allows it with my Gen1.

The one thing that scares me about all of these options on our R1S is how far anything in the J1772 port on the Rivian will stick out when it's plugged in. I'm not too concerned when I'm camping, but when tailgating at a football game we get people walking between the cars all of the time. It would take only one person who's not paying attention to walk into that "lever" that's sticking out and snap something off. At least with the R2 it would be near the tailgate...

 

[GA_Rivian]

A2Z (whose products I really like and trust) has a V2L Adapter:

Obviously not currently compatible, but it says it goes up to 20A which would allow up to 2,200W. For $82 it would be one of my first purchases as soon as Rivian allows it with my Gen1.

2200 W isn't much of a step up from the 1500 W the vehicle already provides. Hardly seems worth it unless you have a very specific need.

 

[scottf200]

I have two delta pro ultra units from ecoflow as well as the smart home panel. I had them installed two years ago prior to hurricane season and they performed flawlessly thought Hurricane Milton.

I upgraded the system this past year to include the eco-worthy charger which can input 120v or 240vAC and output 36 to 64 vDC. Using the eco-worthy charger to feed the low voltage PV inputs on the delta pro ultra, I can pull about 945 watts from the Rivian outlets to recharge the ultra's while still having loads used in my house through the smart home panel. I have the option to still ad some additional solar through the other PV inputs on the ultra. It is working very well for my needs.

That's (product URL) is a clever solution for inputting DC. I've seen that with the EG4 Chargeverter as well.

 

[scottf200]

You need a 240v battery power station to "buffer" the output from the Rivian to your house. An EcoFlow Delta Pro 3 or Ultra will take 120v from the truck and output both 240v and 120v. These aren't cheap though.



The Rivian doesn't (yet?) support backfeeding power out of the charge port, so this won't do anything. The only output is via the 120v outlets and the 12v cigarette port.

Obviously not currently compatible, but it says it goes up to 20A which would allow up to 2,200W. For $82 it would be one of my first purchases as soon as Rivian allows it with my Gen1.

It is unclear how the SigEnergy SigenStor EV DC charger is donig this (in some YouTube videos).

https://www.sigenergy.com/us/products/dc-charger

 

[tpepper]

Short answer: https://en.wikipedia.org/wiki/ISO_15118

 

[scottf200]

Short answer: https://en.wikipedia.org/wiki/ISO_15118

In a recent Enphase IQ Bidirectional EV Charger announcement video (title & YT auth below) they showed these standards. https://enphase.com/ev-chargers/bidirectional

I'm currently planning on the SigEnergy LoadHub & SigenStor setup.

 

[mudito]

I recently acquired an EcoFlowDelta Pro 3 unit (It's on sale on Amazon currently) and I was able to connect it to the Generator Inlet port of my Inverter+Battery Setup.

That setup works, BUT:
- You can output up to 4kW maximum
- You can output 240v while using 120v to Charge BUT, it will try to match the 120v load with the output
So if your load surpasses 1500w, your Rivian can no longer charge your DP3 and it will trip.

In my case, I connected it to the Gen Inlet and limit it from the Inverter itself to a 1400w max and it works, but it will occasionally still trip itself out. I wouldn't recommend this setup.

The easiest/safest way is a Battery Charger Like > LiFePO4 Lithium Iron Battery Charger 0 - 120V in which you can manually adjust the voltage and current. It can be hook up to any XT60 Solar input port by simply using a set of pre-wired cables and you'll be up and running in no time:

Here's my setup:
Rivian 120v out --> Heavy Duty Extension Cord --> LiFePO4 Lithium Iron Battery Charger 0 - 120V --> Anderson S50 to XT60 Connector --> Delta Pro 3 --> 30Amp Generator Cord --> 30 to 50Amp Adapter --> 50Amp Generator Inlet port connected to my SunGoldPower inverter Generator inlet.

This way, you can output the full 4kW from the DP3 no matter how much you're inputting to the Ecoflow via the DC PV ports. Also, I have my inverter set to use the Generator inlet just so supply power and NOT to charge my batteries (I have 25kWh of LFPs battery setup).

My entire house consumes ~600w minimum to 1200w when lights and other low-power electronics are on (laptops, lights, TVs, etc). So the Rivian can maintain the entire house by itself, then the DP3 provides that buffer and when it's out of juice, the batteries take over again. I also have the Ecoflow Xtream adapter so I can take the DP3 and charge it using a J1772 AC which will take it from 0 to 100 in about an hour

I think it's a great setup if you have a Generator inlet (with Inverter+batteries or not)

 

[scottf200]

The easiest/safest way is a Battery Charger Like > LiFePO4 Lithium Iron Battery Charger 0 - 120V in which you can manually adjust the voltage and current.

Nice. Rufus AI:

Input:

• AC 120V (US model) or AC 220V-240V (international model)
• Total power: 1500W at 100-110V, or 3000W at 220V-240V

Output:

• DC voltage: 0-120V (adjustable)
• DC current: 0-25A (adjustable)
• Maximum power output depends on voltage and current combination (e.g., at 60V, max current is 25A; at 30V, max current is 50A)

 

[tpepper]

I know most of you have seen True_Dad's video, but would folks like another video of a gen1 R1T and SigEnergy? I'm not generally a video making person, but can give it a go?

I'm on net metered time of day billing with my utility, have high tariffs 5-9pm weekdays, and cheap nights and weekends. The charger is set to not charge outside of nights and weekends. It automatically wakes up and charges when the Riv's plugged in and below target start of charge and it is cheap power time. I could have it plugged in all the time and do "peak shaving", but it's awkward being always plugged in. So instead a couple times a month I'll plug the Riv in at 5pm, toggle the SigEnergy system to peak shaving with a max ~10kW discharge rate, and let it run the meter back for four hours. Then it auto switches over to fill the Rivian back up when 9pm rolls around. In the morning I unplug it and go back to a normal routine, charging as needed. I end up with net 0kWh used in the expensive 5-9pm period and only charge the car during the cheap time. This is giving a pretty good monthly savings.

I've just got the small SigEnergy battery with it really intended during an outage to just keep the SigEnergy stack alive long enough for me to plug in the Rivian and get it discharging. This works out similar to having a generator to plug in and turn on. The generator's just R1T shaped.

The system hasn't seen a summer yet, but given how the solar (modest ~9kW system) is performing on clear, short winter days, it seems like between it and the Rivian's max battery we could run our house indefinitely during the summer "off grid", including powering our little Chevy Bolt.

 

[mkhuffman]

It is unclear how the SigEnergy SigenStor EV DC charger is donig this (in some YouTube videos).

https://www.sigenergy.com/us/products/dc-charger

Per another thread in this forum (and @tpepper above), the Sigen solution works for V2H with the R1. Therefore there isn't anything we are waiting for Rivian to do other than provide their own branded equipment that is similar to the Sigen solution. Which is not cheap, BTW. $10k minimum.

If the Sigen solution works to tap the DC voltage, why doesn't this one also work?

It does the same thing, just lower power. I would be fine with 10 kW. I really don't need 25 kW power (and 25 kW charging) the Sigen provides.

 

[mudito]

Per another thread in this forum, the Sigen solution works for V2H with the R1. Therefore there isn't anything we are waiting for Rivian to do other than provide their own branded equipment that is similar to the Sigen solution. Which is not cheap, BTW. $10k minimum.

If the Sigen solution works to tap the DC voltage, why doesn't this one also work?

It does the same thing, just lower power. I would be fine with 10 kW. I really don't need 25 kW power (and 25 kW charging) the Sigen provides.

I would be happy with 7kW... Let alone 10....

We need more info on if such product works as expected

 

[Virtio]

I would be happy with 7kW... Let alone 10....

We need more info on if such product works as expected

The 7.5WK model is not bad for about $1200 if it works as expected.

https://tlyard.com/products/tlyard-...s-v2h-charging-station?variant=57241725403517

Looks like they have dealers in Texas who might know about compatibility with Rivian:

 

[Zoidz]

I'm wondering what you have used this for. The website says
"The 14-50 outlet provides pure 240V (no neutral) and is not compatible with RVs or systems requiring split-phase 120V/240V power." That seems to me to imply you could not use it in a V2H scenario, since all the 120v circuits in a house require split-phase.

The only thing in a home that I can think of that will run on 240V with no neutral is a well pump. Well pump motors only have L1, L2 and ground, no neutral.

 

[CharonPDX]

The difficult part was that the Ecoflow won't allow simultaneous 120V input and 240V output.

Well, that explains the odd error message I was getting when trying this. Thanks!

(Two Delta Pro, with the 240V combiner, trying to charge my vehicle. My grounding adapter broke, I'm awaiting warranty replacement, so I tried with them both plugged in, and it showed an odd numeric error I couldn't find anywhere. "No 120V input while 240V output" would explain it.)

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