Rivian preparing in-house V2H charger

[wolfsbane]

Will Rivian ever even mention this again?

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[MacO512]

RJ said both R1 and R2 can do 20kW export on DC. I am wondering if they'll decide to release different versions of the hardware, since a lot of people won't necessarily want or need that much output.

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 having above 11kw.

I do like how the f150 can charge another ev or a trailer or such at 240v30 amp. But if the R1 only exports DC 400v I assume unfortunately there won't be any way to do that except from an expensive box installed at a house.

If Rivian had a 7200watt travel option that would be awesome.

 

[Just Passing By]

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 having above 11kw.

I doubt the expectation is that a Rivian would be continuously discharging at 20/24KW. The high power output is to meet a peak load condition occurring in the house as part of normal home energy demand cycle while minimizing or eliminating grid energy consumption.

Consider the following scenario, say at dinner time in the evening (no solar generation). The AC/heat-pump switches on, the electric water tank is heating water, the electric oven is heating, the induction cooktop has several pots heating and someone turns on the microwave. Ideally all or most of that might be supported with a 20/24KW power output without pulling additional power from the grid. Even minimizing power draw spikes from the grid may be desirable, given that some utilities have pushed to charge based on peak power delivery to a home in a billing cycle, rather than just charging for KWh energy consumption.

 

[wolfsbane]

Assume the latest word is that there is no word?

 

[kanundrum]

Assume the latest word is that there is no word?

I think they recently announced the job opening for it, meaning it's probably one year plus away

 

[SH-MK]

fwiw this product just dropped so...
https://theevreport.com/new-enphase-bidirectional-ev-charger-unveiled

 

[SANZC02]

fwiw this product just dropped so...
https://theevreport.com/new-enphase-bidirectional-ev-charger-unveiled

Expected release second half of 2026

 

[petemill]

I do like how the f150 can charge another ev or a trailer or such at 240v30 amp. But if the R1 only exports DC 400v I assume unfortunately there won't be any way to do that except from an expensive box installed at a house.

If Rivian had a 7200watt travel option that would be awesome.

A portable V2L like a better 240V 30A 7.2kw+ version of the Kia/Hyundai version (which is just a single 1.5kw outlet) would be ideal.

 

[VSG]

fwiw this product just dropped so...
https://theevreport.com/new-enphase-bidirectional-ev-charger-unveiled

What's new in this? It's the same thing Enphase has been saying since at least Feb 2023. See for example
https://web.archive.org/web/20230205183534/https://enphase.com/ev-chargers/bidirectional

 

[MacO512]

A portable V2L like a better version of the Kia/Hyundai version (which is just a single 1.5kw outlet) would be ideal.

The Rivian has a 1.5kw inverter, so it basically does that already. Really sucks though that this isn't just a tiny bigger at 1.8kw as then it would power any high powered 120v item.

Would need 3.6kw minimum on an RV 30amp plug to add significant value. 7200 watts with a 240v 30a would be my preference.

 

[ahoover]

I have Rivian Wall Charger - Software Version: V03.04.12 Model: W1-1113-3RV9 for my 2025 R1S Gen 2.less than 60 days in service. I’m hoping Rivian will offer an upgrade/retrofit to a V2H charger.

 

[Just Passing By]

What's new in this? It's the same thing Enphase has been saying since at least Feb 2023. See for example
https://web.archive.org/web/20230205183534/https://enphase.com/ev-chargers/bidirectional

The latest Enphase bi-directional charger has a few differences.

1. Its now standards based. As I understand it a critical one, NEMA EVSE 40011, was only finalized in early in 2025. I suspect waiting for standards is what has been delaying bi-directional charging from a number of potential suppliers inluding Enphase and Rivian. More on the standard here if interested.
2. The charger can be used with the IQ Meter Collar, which was only introduced in the last year by Enphase; Tesla did a meter collar first for use with their Powerwall. Per Enphase web site "When integrated with an IQ Meter Collar, the charger can seamlessly transition between EV charging, home backup, and grid export functions even without a home battery. The scalable architecture allows for future system upgrades to include home solar and battery."
3. According to Enphase FAQ there will be versions to support AC as well as DC bi-directional charging. "The IQ EV Charger 2, available in the second half of 2025, will support AC bidirectional functionality. The IQ Bidirectional EV Charger, launching in 2026, will support DC bidirectional functionality." Rivian users would care about both because as I understand it R1 supports DC while I seem to recall R2 will support AC.

Enphase website with latest details, which also has a link to a ~20 page updated whitepaper :- https://enphase.com/ev-chargers/bidirectional

 

[MacO512]

I have Rivian Wall Charger - Software Version: V03.04.12 Model: W1-1113-3RV9 for my 2025 R1S Gen 2.less than 60 days in service. I’m hoping Rivian will offer an upgrade/retrofit to a V2H charger.

That won't ever be possible. Wall charger just connects hot1 and hot2 from your wall charger through the j1772 connector to the Rivian charger in the vehicle. The Rivian is not capable of supplying AC back on those ports.

V2H takes 400v DC out of the high voltage pack. It goes through the CCS DC ports. Then the V2H charger has a huge expensive converter to change that DC to AC.

Also V2H needs extensive electrical components to properly not back feed the grid. Probably costs $5k-10k or more.

 

[SH-MK]

Expected release second half of 2026

Yeah, my bad... I thought they were saying "available immediately". Ugh.

When are the promises of "bi-directional soon" going to become "bi-directional NOW"?

If anyone was going to be first to market, I would think it'd be Enphase. Then maybe Rivian would just badge-engineer it and slap their logo on it.

 

[scottf200]

Also V2H needs extensive electrical components to properly not back feed the grid. Probably costs $5k-10k or more.

I've seen multiple home battery companies now with chargers connected to them run a wire to a Meter Collar as a cheaper method. Obviously, the utility needs to approve this.

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