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_Redshift_
Member
If it comes to fruition, I’ll be really, really happy.
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
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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
Me too, assuming that they add enough charging to ensure Tesla owners are not shut out.If it comes to fruition, I’ll be really, really happy.
If they do that, then Tesla can become the Shell or Exxon/Mobile of "gas stations" for EVs. Making pennies per kWh but selling billions per month.
SageBrush
REJECT Fascism
For the same reason that an ICE truck might get 12 mpg while Chevy Malibu gets 25 mpg -- the energy per mile consumption is much higher in the truck
SageBrush
REJECT Fascism
'miles/hour' is (kW) / kWh/mile
Where kW is EVSE charging power
kWh/mile is EPA combined city/highway energy consumption per mile from the meter
As you can see, zilch to do with battery technology
SageBrush
REJECT Fascism
Yup. The numbers are a bit off unless charging efficiency is accounted for. I estimate around 10% losses, so 48 Amps * 240 Volts is about (48 * 0.24 * 0.9) kW into the battery, equal to 10.37 kW
If Model Y on road consumption averages e.g. 250 Wh/mile, then miles/hour = 10.37*4 = 41.5
I checked it today. My wifes model Y P gets up to 42"MPH" charge rate in the tesla app, when charging at 48amps (48/48). On my electrical at home, it runs a bit hot, so I am at like 243 or 244v, not 240.
Also of note, is I watched it when it ramped up, and when it hit 32/48, it said 30 MPH charge rate, so @glide perhaps you are charging with a tesla mobile connector, or some other connection where its set to 32amps?
I have wall connectors, and they are set for 60amp circuits as I mentioned.
_Redshift_
Member
One things that’s holding me back from switching to another EV is the screwed up charging infrastructure.
This will take away the last constraint.
sleepydoc
Well-Known Member
My lifetime average is 268 Wh/mile:
48 amp * 220V = 10,560 W
10,560 W / 268 Wh/mile = 39.4 miles of charge per hour.
sleepydoc
Well-Known Member
How fast you can charge the battery has everything to do with the battery technology.
@Mike7564
Simple: the Rivian is significantly less efficient than the Model Y, and each kWh of energy will deliver fewer miles of range. For example, if you add 50 kWh in a charging session, the Model Y will take you 200 miles while the Rivian will only take you 100 miles (rough numbers - your mileage may vary).
This will impact your charging speed in terms of miles of range added per hour. This applies to both home and on the road. You’ll also be paying more to drive the Rivian the same distance, since it’s using twice as much energy. Road trip charging stops will take longer in the Rivian - maybe not twice as long, but close to it.
Simple: the Rivian is significantly less efficient than the Model Y, and each kWh of energy will deliver fewer miles of range. For example, if you add 50 kWh in a charging session, the Model Y will take you 200 miles while the Rivian will only take you 100 miles (rough numbers - your mileage may vary).
This will impact your charging speed in terms of miles of range added per hour. This applies to both home and on the road. You’ll also be paying more to drive the Rivian the same distance, since it’s using twice as much energy. Road trip charging stops will take longer in the Rivian - maybe not twice as long, but close to it.
The numbers I used weren't lifetime averages but numbers from FuelEconomy.gov which show the EPA Fuel Economy. I believe Tesla uses the fuel economy ratings when calculating "miles per hour" in the app.
The Model Y is very efficient at 280 Wh/mile whereas the Rivian R1t is very inefficient at 480 Wh/mile. By comparison, the 2022 Model 3 LR is 260 Wh/mile.
We've often been able to get much better than the listed ratings. When I used to commute to work, I would often average 150 Wh/mile in a 2017 Model S since I would only average about 45 mph. Now that I work from home, nearly all of my driving is highway miles at 70 mph or higher so my lifetime average is closer to 290 Wh/mile. Our Model X lifetime average is currently 301 Wh/mile, better than the rated 330 Wh/mile.
The R1S is a much more capable vehicle though so really hard to compare. Its faster, bigger, off-road capable, and holds more people comfortably and much more expensive. I already see 4 Rivians in my parking garage at work and the owners LOVE them. Former Tesla owners too but highly prefer the Rivians.
SageBrush
REJECT Fascism
Find me a car traction battery that cannot take 12 kW. There are EVs with OBC's that max out at less than 48 Amps, but that is not the battery. Even my olde 22 kWh LEAF pack with no thermal control could take around 44 kW, meaning about 2C
In this OP, both the cars being discussed have 48 Amp OBC. The difference in miles/hour is completely explained by the Wh/mile differences between the vehicles.
Your residential voltage is likely closer to 240V; and
Your 'lifetime average' if read from the car does not include charging losses of about 11%
So a better calc is (240*48*0.89)/268 = 38.25 miles/hour in your use case
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People could have said the same thing about Tesla a few years ago.
The One Electric Vehicle That Everyone Who Owns One Loves
The automotive is in the midst of change, with electric cars now increasing in popularity and talks of gas-powered cars being banned by 2035. With their increasing popularity comes choice. Every major car brand is now bringing out versions of electric vehicles, much to consumers' delight. The days of Tesla being the conglomerate brand in this market is now long gone, and one car is wowing consumers more than any, the Rivian's R1T electric pickup (and R1S SUV).hey, at least it's on the horizon. I finally got a delivery date today....it just says "2024." I did get a demo ride a couple weeks ago. Order went in February 4th. On the plus side, the price is still great, the tax credit in theory is secured, and the charging picture may look a lot better by then, as well as Rivian's long term prospects.
Anyone that orders the base price model now will wait much longer, as the 2 motor version doesn't even exist yet to the best of my knowledge.
As for the charging rate. It's pretty simple. The Tesla has a 75 kWh battery, and the Rivian has a 135 kWh battery. Range is about the same. Aside from the poorer aerodynamics of the SUV face, the thing weighs nearly 3000 more pounds. Yet still matches or beats the YP for acceleration.
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