[Speculation] Model 3 0.237 kwh/mile!

[Swampgator]

Akilae over at Model 3 owners club found this code snipet on the Tesla site:

{"months":60,"toll_savings":null,"distance_per_month":833.33,"distance":49999.8,"fuel_efficiency_imperial":28,"fuel_efficiency_metric":null,"kwh_consumption":0.237,"supercharger_kwh_price":0.2,"fuel_price":2.85,"kwh_price":0.127},"variant":["m3"],"market":"US"

If this is correct then the Model 3 will be one of the most efficient EVs on the market. This also works out to a 316 mile range for the 75kwh pack. And over 250 miles for a 60 kwh pack. I still think they may use a 55 kwh for the base, which still works out to 232 miles.

The same code Tesla uses he found shows 0.369 kwh/mile for a Model S.

Anyone know with that efficiency number what the weight should be??

 

[KarenRei]

You can't calculate the weight just from that - aero has even more of an influence. But if that's right.... 64% as much energy.... *swoon*! That's at the lower end of my estimates. And would mean that on a 48A charger it would fill even *faster* than a Model S on a 72A charger

If we assume an equal distribution of energy savings between aero, rolling, and parasitic losses, and if we assume a Cd of the design goal 0.21, then the frontal area is 73% that of the Model S, or 86% as long on each axis.

If this number turns out to be correct, I'm going to play Pharrell's "Happy" and Jónas Sigurðsson's "Hamingjan er hér" on a loop I mean, geez, where I am the speed limits are only 90 kph (56 mph), so maybe 180Wh/mi / 112 Wh/km. OMG, CHAdeMOs actually would be like mini-superchargers....

 

[Swampgator]

How does efficiency impact charge rate? I'm not refuting you I'm just not familiar with that idea.

 

[Runt8]

I for one would love to be pleasantly surprised when we get official range numbers. This would certainly do it!

 

[vgrinshpun]

Akilae over at Model 3 owners club found this code snipet on the Tesla site:

{"months":60,"toll_savings":null,"distance_per_month":833.33,"distance":49999.8,"fuel_efficiency_imperial":28,"fuel_efficiency_metric":null,"kwh_consumption":0.237,"supercharger_kwh_price":0.2,"fuel_price":2.85,"kwh_price":0.127},"variant":["m3"],"market":"US"

If this is correct then the Model 3 will be one of the most efficient EVs on the market. This also works out to a 316 mile range for the 75kwh pack. And over 250 miles for a 60 kwh pack. I still think they may use a 55 kwh for the base, which still works out to 232 miles.

The same code Tesla uses he found shows 0.369 kwh/mile for a Model S.

Anyone know with that efficiency number what the weight should be??

The rated energy consumption of my RWD Model S is 0.300kWh/mile. Are you sure this 0.369kWh/mile is for Model S, not Model X?

 

[Thomas Edison]

This is great news if it's correct!

 

[KarenRei]

How does efficiency impact charge rate? I'm not refuting you I'm just not familiar with that idea.

For a vehicle getting A Wh/mi given charge rate of B watts:

A Wh/mi / B W = A/B h/mi of charge added, or B / 60A mi/min. So, for a vehicle that gets 369 Wh/mi charging on, say, 43kW, you're adding 1,9 mi/min. But for a vehicle getting 237 Wh/mi, that's 3 mi/min.

Obviously there are limits to how fast you can charge a pack, particularly as it nears 100% capacity. But so long as you're not hitting those limits, you add more miles per minute on a more efficient vehicle for a given charge power.

 

[cizUK]

How does efficiency impact charge rate? I'm not refuting you I'm just not familiar with that idea.

If you are using the same charging power, greater efficiency means greater mph of charging

edit: much better answer ^

 

[Yggdrasill]

I'm not completely sure what to make of that figure. It's 36% lower than the figure for the Model S. That *can't* be right.

I suspect the figure for the Model S is including charging losses, but it's without charging losses for the Model 3. That's good, because it allows you to calculate the range pretty accurately. But you still don't have enough information to make a reasonable estimate for the weight. It's just one factor in a big mess of calculations.

However, my calculations for range have been pretty similar to these figures, and I've been using 1700-1850 kg in my calculations.

 

[MacGreiner]

That would make it more efficient than than the smaller aluminium and carbon fibre i3 - great if true though.

 

[kingjamez]

Akilae over at Model 3 owners club found this code snipet on the Tesla site:

{"months":60,"toll_savings":null,"distance_per_month":833.33,"distance":49999.8,"fuel_efficiency_imperial":28,"fuel_efficiency_metric":null,"kwh_consumption":0.237,"supercharger_kwh_price":0.2,"fuel_price":2.85,"kwh_price":0.127},"variant":["m3"],"market":"US"

If this is correct then the Model 3 will be one of the most efficient EVs on the market. This also works out to a 316 mile range for the 75kwh pack. And over 250 miles for a 60 kwh pack. I still think they may use a 55 kwh for the base, which still works out to 232 miles.

The same code Tesla uses he found shows 0.369 kwh/mile for a Model S.

Anyone know with that efficiency number what the weight should be??

Man that would be fantastic. That's only slightly less than my average of 4.7 m/kWh that I get on my little leaf. That's 4.2 m/kWh... really nice.

-Jim

 

[N5329K]

Akilae over at Model 3 owners club found this code snipet on the Tesla site:

{"months":60,"toll_savings":null,"distance_per_month":833.33,"distance":49999.8,"fuel_efficiency_imperial":28,"fuel_efficiency_metric":null,"kwh_consumption":0.237,"supercharger_kwh_price":0.2,"fuel_price":2.85,"kwh_price":0.127},"variant":["m3"],"market":"US"

If this is correct then the Model 3 will be one of the most efficient EVs on the market. This also works out to a 316 mile range for the 75kwh pack. And over 250 miles for a 60 kwh pack. I still think they may use a 55 kwh for the base, which still works out to 232 miles.

The same code Tesla uses he found shows 0.369 kwh/mile for a Model S.

Anyone know with that efficiency number what the weight should be??

That's the low end of reasonable for the Model 3, and seems a bit high for the Model S.
Robin

 

[KarenRei]

Akilae over at Model 3 owners club found this code snipet on the Tesla site:

Can you link us to the original article, hopefully with the code so we can look at it ourselves?

 

[DurandalAI]

Wow, that makes it roughly 100Wh more efficient per mile than the Nissan Leaf's EPA efficiency, and 50Wh more efficient than the Chevy Bolt's EPA efficiency. Very nice!
Edit- Link to the Bolt:
Fuel Economy of the 2017 Chevrolet Bolt EV
Edit: Ranking by kWh/100 miles
Fuel Economy of New All-Electric Vehicles

 

[jelloslug]

That would make it more efficient than than the smaller aluminium and carbon fibre i3 - great if true though.

My i3 was worse than the Leaf I had.

 

[ItsNotAboutTheMoney]

I expect they just kept decreasing the consumption until "Price Including Savings" dropped to $35,000.

 

[Swampgator]

Can you link us to the original article, hopefully with the code so we can look at it ourselves?

Possible Model 3 Configurator Information Discloure

 

[KarenRei]

Shoot, he doesn't say what URL. And I'm too lazy to register an account over there

Man, though.... now that it's gotten my hopes sky high, I hope it doesn't turn out to be wrong!

 

[tracksyde]

The rated energy consumption of my RWD Model S is 0.300kWh/mile. Are you sure this 0.369kWh/mile is for Model S, not Model X?

Akilae at M3OC said 0.344 for Model S and 0.369 for X

Am I onto something?

Also the consumption is significantly lower on a Model 3 using 0,237 kwh/mile compared to a Model S using 0,344 kwh/mile or a Model X using 0,369 kwh/mile

 

[Runt8]

Akilae at M3OC said 0.344 for Model S and 0.369 for X

Both of those numbers seem high. They result in range numbers that are lower than advertised and real world ranges.