R2 has bidirectional V2L / V2H (vehicle-to-home) specification article

[itiming]

Anyone have specifics for either R2 or R1 bidirectional charging?

R2 can power your home

According to Rivian, the new Energy Management Control Module is a large electronic assembly that bundles several functions into a single package located at the rear of the battery pack. Among the features included in this control module is a bidirectional charger, which can draw electricity from the grid, which is alternating current (AC), and transform it into direct current (DC) for the high-voltage battery. It can also do the opposite, transforming DC to AC to power an entire house.

“We believe this innovation has the potential to unlock gigawatt-hours of energy storage from Rivian vehicles, creating a cost-effective power storage solution for our customers,” the company said in its third-quarter shareholder letter. In the U.S., the R2 will have a Tesla-style NACS charge port, but as the EV startup is looking to expand its global footprint, the electric SUV could also be sold with a CCS2 port for European markets.

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[Polar]

R2 has a capability for the onboard charger to output up to 11 kW AC

R1 has the ability to output approximately 22 kW DC out from the battery directly to an external inverter that would then convert to AC.

None of this is new. None of this is news. This is just a rehashed story for investors and marketing. This is basically Rivian stating the R2 will have V2L capability.

 

[Dark-Fx]

R2 has a capability for the onboard charger to output up to 11 kW AC

R1 has the ability to output approximately 22 kW DC out from the battery directly to an external inverter that would then convert to AC.

None of this is new. None of this is news. This is just a rehashed story for investors and marketing. This is basically Rivian stating the R2 will have V2L capability.

The new part is the inverter/charger is part of the battery pack.

 

[1stPlace]

This is still very impressive for the R2, even if not super new news. 11kW is what my natural gas generator can do and is enough to actually power a home furnace, washer/dryer, refrigerator and more. The only other electric vehicles on the market that can come close to that figure are the trucks with NEMA 14-50 outlets, and those are all way more expensive and not everybody's type of vehicle. Hyundai and Kia have V2L, but you can only use it as if it was just a single home 120V circuit outlet.

I hope Rivian advertises the feature enough that people are aware. Many (most?) people do not have a home back-up, and although this isn't a complete solution since the vehicle needs to be at your home, it is still a much better plan than nothing. Roughly a $10k-$15k value if you consider that is probably the average for a home back-up in America right now. So if someone is comparing similar vehicles in features and price, this would be a huge reason to go with the R2, if the other vehicles don't have it and the person comparing does not have any home back-up in place. Maybe some of those late adopters that had range anxiety also have general anxiety, which this home back-up option helps to alleviate.

 

[Dasoss]

Anyone have specifics for either R2 or R1 bidirectional charging?

R2 can power your home

According to Rivian, the new Energy Management Control Module is a large electronic assembly that bundles several functions into a single package located at the rear of the battery pack. Among the features included in this control module is a bidirectional charger, which can draw electricity from the grid, which is alternating current (AC), and transform it into direct current (DC) for the high-voltage battery. It can also do the opposite, transforming DC to AC to power an entire house.

“We believe this innovation has the potential to unlock gigawatt-hours of energy storage from Rivian vehicles, creating a cost-effective power storage solution for our customers,” the company said in its third-quarter shareholder letter. In the U.S., the R2 will have a Tesla-style NACS charge port, but as the EV startup is looking to expand its global footprint, the electric SUV could also be sold with a CCS2 port for European markets.

I investigated this. I found that, for now, the external inverter needed in the home for the R1 is pretty costly. In fact, it costs about the same than installing rooftop solar with storage, although the Tesla Powerwall does not have the capacity of a max battery pack. With the R2's built in inverter, the home would only need a smarter L2 charger and a remote isolation switch at the meter.

 

[itiming]

I investigated this. I found that, for now, the external inverter needed in the home for the R1 is pretty costly. In fact, it costs about the same than installing rooftop solar with storage, although the Tesla Powerwall does not have the capacity of a max battery pack. With the R2's built in inverter, the home would only need a smarter L2 charger and a remote isolation switch at the meter.

The QUESTION I have for all - without logic somewhere in the Solar Storage System, EVSE, or EV, how are you gleaning the excess solar energy all day and sending it to the EV and not back to the grid?

R2 has a capability for the onboard charger to output up to 11 kW AC

R1 has the ability to output approximately 22 kW DC out from the battery directly to an external inverter that would then convert to AC.

I investigated this. I found that, for now, the external inverter needed in the home for the R1 is pretty costly. In fact, it costs about the same than installing rooftop solar with storage, although the Tesla Powerwall does not have the capacity of a max battery pack. With the R2's built in inverter, the home would only need a smarter L2 charger and a remote isolation switch at the meter.

Much appreciate the helpful replies. My goal is to provide BU/nightime power to support our solar array (which uses Enphase inverters to send AC to the house). We have an essential loads panel installed (for limited, off-grid sun-light power--which is 7.7 kW mid-day power). By alternating our two EV's daily driving, one is always at home getting recharged. Initially hoping for our 2023 R1T V2H. The R2 inverter seems to offer another option, if we replaced our Model Y with an R2.

 

[MountainBikeDude]

Much appreciate the helpful replies. My goal is to provide BU/nightime power to support our solar array (which uses Enphase inverters to send AC to the house). We have an essential loads panel installed (for limited, off-grid sun-light power--which is 7.7 kW mid-day power). By alternating our two EV's daily driving, one is always at home getting recharged. Initially hoping for our 2023 R1T V2H. The R2 inverter seems to offer another option, if we replaced our Model Y with an R2.

I was just admiring your profile photo and realized there was a second compass yellow R1T in the photo, did you buy 2?

 

[BigSkies]

I know just enough about electrical to be dangerous (literally) and to sometimes say a combination of smart and dumb things about it.

The V2L solutions that exist today aren't really practical for a price/value standpoint. They're just stupid expensive and complicated compared to generators.

Will bringing the inverter into the battery pack materially change the cost and complexity of installing one of these systems?

 

[itiming]

I was just admiring your profile photo and realized there was a second compass yellow R1T in the photo, did you buy 2?

We followed the path of our daughter's family who 1st purchased their compass yellow R1T. Their experience convinced us that it would be the right tow/haul vehicle for us, as well. It took a while to find one in our area; which, by coincidence turned out to be the same color as theirs.

 

[bigsky]

WIll not buy an R2, and I have had enough already with power outages.
My great home has all critical loads wired to a separate electrical service with manual grid cut-off and built-in switchover connection to backup power via outside outlet.
Invested in a whole-home 18 kWh battery pack solution to power up my entire home in emergencies. Left to solve was how to charge my battery backup unit while using it.
Enter my R1S Quad. My R1S charges it via the 120 V 15 A outlet. At 1.5 kWh max, it provides plenty of charging capacity to keep my backup solution fully charged always. Backup power forever.
Heck, I could even Level 2 charge my EVs in a pinch.
No more power outages ever again for me. Hallelujah!!

 

[Dasoss]

WIll not buy an R2, and I have had enough already with power outages.
My great home has all critical loads wired to a separate electrical service with manual grid cut-off and built-in switchover connection to backup power via outside outlet.
Invested in a whole-home 18 kWh battery pack solution to power up my entire home in emergencies. Left to solve was how to charge my battery backup unit while using it.
Enter my R1S Quad. My R1S charges it via the 120 V 15 A outlet. At 1.5 kWh max, it provides plenty of charging capacity to keep my backup solution fully charged always. Backup power forever.
Heck, I could even Level 2 charge my EVs in a pinch.
No more power outages ever again for me. Hallelujah!!

What a clever solution. I would never have thought of that.

 

[Dasoss]

Much appreciate the helpful replies. My goal is to provide BU/nightime power to support our solar array (which uses Enphase inverters to send AC to the house). We have an essential loads panel installed (for limited, off-grid sun-light power--which is 7.7 kW mid-day power). By alternating our two EV's daily driving, one is always at home getting recharged. Initially hoping for our 2023 R1T V2H. The R2 inverter seems to offer another option, if we replaced our Model Y with an R2.

Level 2 chargers are really simple. They provides simple isolation, ground fault detection, current limiting, communications with the vehicle and other safety protection. A 2 way charger would need to add the ability for the isolation circuits to pass power in both directions.The hardware to communicate with the vehicle's inverter is already there. There would need to be additional firmware in the charger. There would need to be an isolation switch at the meter if there isn't one already installed as part of an existing solar system. The wiring to the charger might need to be upgraded, if the vehicle supplies more than 48 A to the home. It shouldn't cost that much more, but what do I know?

 

[lunchbox]

What a clever solution. I would never have thought of that.

WIll not buy an R2, and I have had enough already with power outages.
My great home has all critical loads wired to a separate electrical service with manual grid cut-off and built-in switchover connection to backup power via outside outlet.
Invested in a whole-home 18 kWh battery pack solution to power up my entire home in emergencies. Left to solve was how to charge my battery backup unit while using it.
Enter my R1S Quad. My R1S charges it via the 120 V 15 A outlet. At 1.5 kWh max, it provides plenty of charging capacity to keep my backup solution fully charged always. Backup power forever.
Heck, I could even Level 2 charge my EVs in a pinch.
No more power outages ever again for me. Hallelujah!!

Doesn’t this only work if your average load is less than 1.5 kW? Topping up the battery while you are drawing will extend coverage but if the flow out is faster than the flow in eventually you run out.

 

[RivianRiverRat]

We followed the path of our daughter's family who 1st purchased their compass yellow R1T. Their experience convinced us that it would be the right tow/haul vehicle for us, as well. It took a while to find one in our area; which, by coincidence turned out to be the same color as theirs.

If it has the forest edge interior with the compass yellow and bright ATs
A rare

 

[Dasoss]

Doesn’t this only work if your average load is less than 1.5 kW? Topping up the battery while you are drawing will extend coverage but if the flow out is faster than the flow in eventually you run out.

I think that the idea is for the 18 KWhr pack is for backup only. The Rivian only charges and maintains the backup pack. It is not intended to supply the home in an emergency.

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