Rivian vs Model Y

[Mike7564]

Have an order on a LR model Y but have now been looking into the Rivian R1S (given space/ability to fit 3 car seats/booster) etc.

One big question I have is why the difference in quoting home charging spec? Both home chargers do 11.5 kW / 48 amp. However Rivian is quoting 25miles/hr charging while the Model Y is quoting 44 miles/hr charging.

Can someone explain technically why the large difference? Is one company estimating the charging speed inaccurately?

 

[P.S.S.]

One issue is that most manufacturers have a hard time beating Tesla’s battery/power train efficiency. For example, for the Model Y to get approximately 325 miles or EPA rated range, it has a 75 kWh battery. For the Ford Mustang Mach E to get around the same range in a similar configuration (e.g. AWD, wheel size, etc.), it has a 98 kWh battery. So the Mach E owner has to put in more energy to get the same mileage as the Model Y owner.

 

[voxel]

Have an order on a LR model Y but have now been looking into the Rivian R1S (given space/ability to fit 3 car seats/booster) etc.

One big question I have is why the difference in quoting home charging spec? Both home chargers do 11.5 kW / 48 amp. However Rivian is quoting 25miles/hr charging while the Model Y is quoting 44 miles/hr charging.

Can someone explain technically why the large difference? Is one company estimating the charging speed inaccurately?

R1S is less efficient. Never use miles/hr as that's a BS number that changes with the vehicle's efficiency

As for R1S... good luck getting one within a year. I've waited 16+ months and it won't arrive for another 6-9 months.

 

[jjrandorin]

Have an order on a LR model Y but have now been looking into the Rivian R1S (given space/ability to fit 3 car seats/booster) etc.

One big question I have is why the difference in quoting home charging spec? Both home chargers do 11.5 kW / 48 amp. However Rivian is quoting 25miles/hr charging while the Model Y is quoting 44 miles/hr charging.

Can someone explain technically why the large difference? Is one company estimating the charging speed inaccurately?

Because the batteries are vastly different sizes (the Rivian is a MUCH less efficient vehicle from a battery use perspective).

What you are asking, in effect is: "I am pouring the same amount of water into a quart size container and a gallon size container. How come one is 1/2 full and the other is 1/3 full with the same amount of water?"

 

[MY1stEV]

I think Rivian makes cool vehicles, and I'm rooting for them to prosper, but I'd sure loose a lot more sleep over whether or not my $90k+ car's company will be around 5 years from now rather that sweat which one charges faster.

That being said, as long as you can provide a 50A or higher circuit at home for charging at night, I wouldn't worry about your vehicle being ready to go the next morning. CCS charging in the wild is a crap shoot regardless of what non-Tesla vehicle you have.

 

[Brian-MS90D]

In a perfect world and with money being no issue, I'd pick the Rivian R1S. No contest.

Unfortunately, non-Tesla long distance trip charging is almost non-existent. Where it does exist, it is rarely reliable. This would keep me from purchasing any non-Tesla EV today (I travel a lot).

However, if Tesla opens up their Supercharger network to everyone, then that would make the Rivian R1S more feasible for me .

 

[_Redshift_]

Didn’t Elon promise to open up the superchargers to other cars?

Oh, Nevermind.

 

[eskudo12791]

Didn’t Elon promise to open up the superchargers to other cars?

Oh, Nevermind.

Tesla is preparing Supercharger membership for non-Tesla EV owners

Tesla is working on a new Supercharger membership to offer non-Tesla EV owners as it prepares to open its Supercharger...

electrek.co

Tesla will open up Superchargers to non-Tesla electric vehicles in the US later this year

The White House says it’s coming in late 2022.

www.theverge.com

 

[nate704]

That’sa big jump from $65k compact cuv to $100+ k midsize suv.

 

[nate704]

Have an order on a LR model Y but have now been looking into the Rivian R1S (given space/ability to fit 3 car seats/booster) etc.

One big question I have is why the difference in quoting home charging spec? Both home chargers do 11.5 kW / 48 amp. However Rivian is quoting 25miles/hr charging while the Model Y is quoting 44 miles/hr charging.

Can someone explain technically why the large difference? Is one company estimating the charging speed inaccurately?

Battery and BMS technology and software with Tesla

 

[sleepydoc]

Because the batteries are vastly different sizes (the Rivian is a MUCH less efficient vehicle from a battery use perspective).

What you are asking, in effect is: "I am pouring the same amount of water into a quart size container and a gallon size container. How come one is 1/2 full and the other is 1/3 full with the same amount of water?"

Yup. This reminds me of the U.S. auto industry in the 70's and 80's. Gas was expensive and the Japanese cars were kicking their butts in terms of efficiency so they started putting a bigger gas tank in and touting 'cruising range.'

Never use miles/hr as that's a BS number that changes with the vehicle's efficiency

'miles/hr' charging speed is a useful metric if you're taking a road trip and want to estimate how much time you'll spend charging but as @jjrandorin states, it's dependent on efficiency and battery technology. Range is a combination of battery size and efficiency.

 

[bobbyjae]

I would buy the R1S over the MY after a few years when Rivian has matured as a company. Right now it's a bit too unpredictable (service, quality, long term ownership, etc.).

 

[glide]

the Model Y is quoting 44 miles/hr charging.

Are you sure about that? I’ve never seen more than 30 for the MY

 

[nate704]

Are you sure about that? I’ve never seen more than 30 for the MY

All Non-Tesla cars/manufactures slap bigger battery to match Tesla's range.

 

[glide]

All Non-Tesla cars/manufactures slap bigger battery to match Tesla's range.

Uhhhhh…what does that have to do with Tesla’s advertised charging speed on 240V?

 

[jjrandorin]

Are you sure about that? I’ve never seen more than 30 for the MY

I think mine says 44 when it charges... I have a 60amp circuit (so 48amp charging). Ill check and reply back

 

[MorrisonHiker]

Are you sure about that? I’ve never seen more than 30 for the MY

Uhhhhh…what does that have to do with Tesla’s advertised charging speed on 240V?

How many amps are you charging at? We don't have a Model Y currently but according to the Wh/mile numbers that can be calculated from FuelEconomy.gov, it looks like the 2022 Model Y and 2022 Model S should be able to charge at about 41 miles/hour at 48 amps. The 2022 Model 3 should charge around 44 miles/hour. You can calculate these values by taking the volts * amps / Wh/mile. So 240 volts * 48 amps / 280 Wh/mile = 41.1 miles/hour.

When we charge our 2022 Model S, we do see ~40 miles/hour at 48 amps. (The volts fluctuate a little.) Since the S has the same Wh/mile as the 2022 Model Y, they should both charge at the same rate.

 

[glide]

Got it. I’m using the plug in wall charger which is limited to 32 Amps.

 

[z335is]

Would you rather carry around a 10 gallon jug that can only hold 5 gallons of water or a 5 gallon jug that can hold 5 gallons of water?

 

[gotoma8]

48 amp charging is with the Wall Charger. The max on the mobile charger is 32amps, which gives my M3 30m/h at 8kw/h.