Xelloss99
Member
Model 3/Y pack voltage is 400V (you had it listed at 350V). However, at low SoC it is about 350V but it doesn't stay there for all that long.Some estimates regarding CCS adapter in Canada at common charging stations found in Ontario/Quebec.
I wouldn't be quick to get rid of the ChaDeMo for Model 3 owners, the speed difference won't really matter. Plus, majority of CCS/ChaDeMo stations in rural areas have a max of 50KW (where there is no Tesla Supercharger).
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Model 3/Y nominal voltage: 350 volt
Model S/X 2021 and later nominal voltage: 450 volt
Adapter max: 500 volt
Adapter max amperage: 300 amps (Teslas typically accept more than that via supercharging)
ChargePoint EcoCharge CCS Stations (located at IGAs):
Model 3/Y: 350 volts * 156Amps = 54.6KW (if two vehicle charging at paired chargers) or 350 volts * 200 amps = 70 KW (if one vehicle in paired chargers)
Model S/X: 450 * 156 = 70Kw (if two vehicles charging at parked chargers ) or 450 * 200 = 90kw (if one vehicle in the paired chargers)
Flo / Electric Circuit Charger(s):
Model 3/Y : 350 volts * 200 amps = 70 KW (for 100kw stations) and 350 volts * 125 amps = 44 KW (for 50 kw stations)
Model S/X : 450 volts * 200 amps = 90kw (for 100kw stations) and 450 * 125 amps = 56.5kw
Petro Canada / Electrify Canada charger(s) rare 350kw charging station:
But Model 3/Y : 350 volts * 300 amps = 105KW
Model S/X: 450 volts * 300 amps = 135KW
150Kw models from Petro Canada or Electrifiy Canada:
Model 3/Y: 350 volts * 175 amps = 62.5KW
Model S/X: 450 * 175 = 78.275KW
I'm using voltage curves from my 2018 Model 3 LR using TeslaMate.
I checked on the AddEnergie specs site, while it would be logical to think that they would charge at 250A (twice the 50 kW charger of 125A), the spec sheet indicates they max at 200A.
I picked the breakpoints below as they represent approximately the 150 kW, 100 kW AddEnergie, and 50 kW chargers you mentioned at the 400V max pack voltage
150 kW charger = 500A max (capped to 300A) = 400V*300A or 120 kW breakpoint
100 kW charger = 200A max = 400V*200A or 80 kW breakpoint
50 kW charger = 125A max = 400V*125A or 50 kW breakpoint
Supercharging drops below the above breakpoints at the following levels:
below 120 kW at 59% SoC (393V) - 300A ("150 kW") charger
below 100 kW at 65% SoC (394V) - theoretical 250A charger
below 80 kW at 72% SoC (397V) - 200A ("100 kW") charger
below 50 kW at 84% SoC (401V) -125A ("50 kW") charger
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50 kW fast chargers (50 kW Flo) charge at 125A. So multiply the below voltage breakpoints by 125A to get the power at that breakpoint.
On a Model 3
at low SoC voltage is about 350V (43.8 kW), 376V at 50% SoC (47 kW), with power peak at 396V at 70% SoC (49.5 kW) to max at 401V at 84% SoC (50.1 kW)
100 kW fast chargers ("100 kW" Flo) charge at 200A.
At 200A, a Model 3 at low SoC voltage is about 350V (70 kW), 376V at 50% SoC (75.2 kW), with power peak at 397V at 72% SoC (79.4 kW), then gradually decreasing from there, dropping below 50 kW at 84% SoC as above.
The BTC Electrify Canada and Petro-Canada chargers can go up to 500A when outputting up to 500V (150 kW), and 432A at 500-950V (350 kW) but will cap at 300A by the Tesla firmware as that is the adapter limit.
At 300A, a Model 3 at low SoC voltage is about 350V (105 kW), 376V at 50% SoC (112.8 kW), with power peak at 393V at 59% SoC (117.9 kW), then decreasing from there ultimately dropping below 100 kW at 65% SoC, below 80 kW at 72% SoC, and below 50 kW at 84% SoC.
Depending on where you end the charge, this is pretty significant over the CHAdeMO adapter particularly on a 150 kW charger. You will get over double the CHAdeMO rate up to 65% SoC (about half the charging time if you end at 65% SoC!) and between the CHAdeMO and double its rate from 65% to 84% SoC, which is a pretty significant time savings for most road trips.
And this is with a Model 3/Y. A 2021 refresh Model S/X will get even better than this because of the higher pack voltage and the longer peak power curve before the Tesla starts requesting less current.
However as you mentioned, if where you are going is only serviced by the 50 kW AddEnergie chargers (which is pretty much anything off of Trans-Canada 1 around here), it's 50 kW anyways so doesn't make a difference.