11kw now - 22kw mid 2020

[Singularity]

To me it's rather fine to first get experience on using the car and then based on that I can decide if I want to buy the upgrade later. Not sure if I'll need it at all, as at home I won't be able to charge faster than 11kw anyway. So it really comes down to how often I need the 22kw charging points and how critical those charges are to my routes & schedules.

Sponsored

 

[felixtb]

You can only get 16A 3phase at your home? Assuming you can get 3phase.....

 

[Singularity]

You can only get 16A 3phase at your home? Assuming you can get 3phase.....

This is my assumption currently based on how older houses generally are over here. I don't really know yet (hasn't been of interest or relevant before). Next week an electrician is coming to check things out for an offer to install a charging station. Then I'll know for sure

Would be a bummer if not even 11kw can be done, but then I'd probably invest in some upgrading of the electric infrastructure.

 

[felixtb]

if you have 3phase then 16A will give you 11kw and 32A will give you 22kw possible as a rule of thumb

 

[KerbMonster]

Exactly! Home charging! Where most of your EV charging is done.
80% will take place at home is the EV rule of thumb but some of us will do 100% of our charging at home as the nearest fast charge is so far away it would take ~2 hours round trip to to drive there, charge and drive back (plus you don't have 100% charge by the time you are done).

Don't plan on even 11kW at launch:
"Porsche caps the Taycan at 9.6 kW, at least for now; future Taycan models are rumored to feature a 22-kW onboard AC charger. To be fair, Porsche quotes a zero to 100 percent recharge time of 9.5 hours at 9.6 kW."

I expect real world charging time @ 9.6kW to be around 10-11 hours. This is only 4.5-5 hours @ 22kW.

I understand you won't ever be charging from 0%, but who wants that car to be useless for 4-5 hours should you want to take it somewhere and need a 50% charge to get there and back. With 22kW you can add usable range in minutes not hours to the tune of ~50 miles of range in 30 minutes from your primary charging place ie home. If you have 25 miles left in the battery and need to go 100 miles you only need to charge for around 45 minutes @ 22kW, but you need 3 hours with 11kW to do the same thing!

I said this before in another thread until you can recharge aka fill up from 5% to 100% in 5 minutes from nearly 200,000 locations (like we do with gas stations currently in the US) I only see having the fastest charging rates as possible at home as a very good thing with zero negatives.

Since we are talking about Porsche needing to upgrade or replace hardware inside the Taycan to do 22kW and since Porsche never does anything free I am skeptical of rushing to order my Taycan with the promise of a 22kW "free" upgrade unless I have something in writing. I also need to wait for the aluminum roof so it's not a worry for me at this time.
YMMV.

45 mins @ 22kw but 180 at 11kw???
How does that work?

 

[Jenner]

My mistake! I originally used a different mileage when I wrote it and then in the process of writing it changed it to be more realistic (75 miles needed instead of 150). I changed the 9.6kW but forgot to change the 22kW, Should be 1.5 hours, I'll edit it now.

I don't know the specific miles per hour of charging for the Taycan so I was using a Tesla chart that said 43km an hour added for 9.6kW and 90km an hour added for 22kW or 25 miles per hour for 9.6kW ie 3 hours for 75 miles and a little less than 1.5 hours for 22kW based on the Tesla info.

 

[TaycanNut]

22KW at Home? You do realize what size circuit breaker you will need right? 22,000W/240V = 92 amp breaker, round up to 100 amp. Good luck with that.

For 9.6KW you need a 40amp breaker

 

[Jenner]

Being an international vehicle and forum I realize this is not possible for everyone. I am speaking for my own home in the US.
I've already talked to my electrician and we are putting in a 2nd 100 amp sub panel. I already have a 100 amp sub panel in that handles all of my 2nd floor. The 2nd sub panel in the garage will have a 100 amp breaker for charging the Taycan as well as a few 20 amp breakers for the rest of the garage outlets and garage doors.
Due to the 20% rule the 100 amp breaker will only provide about 80 amps at 240v or 19.2kW.
Not the full 22kW but the Taycan on board hardware needs to be able to handle 22kW in order to do 19.2kW.

 

[felixtb]

22KW at Home? You do realize what size circuit breaker you will need right? 22,000W/240V = 92 amp breaker, round up to 100 amp. Good luck with that.

For 9.6KW you need a 40amp breaker

Yah, that’s the thing that’s much easier in most European countries. With 3 phase circuitry its 3x32A breakers and most buildings have that available even if not currently installed.......

 

[TaycanNut]

Being an international vehicle and forum I realize this is not possible for everyone. I am speaking for my own home in the US.
I've already talked to my electrician and we are putting in a 2nd 100 amp sub panel. I already have a 100 amp sub panel in that handles all of my 2nd floor. The 2nd sub panel in the garage will have a 100 amp breaker for charging the Taycan as well as a few 20 amp breakers for the rest of the garage outlets and garage doors.
Due to the 20% rule the 100 amp breaker will only provide about 80 amps at 240v or 19.2kW.
Not the full 22kW but the Taycan on board hardware needs to be able to handle 22kW in order to do 19.2kW.

You may exceed the total amp service coming into your house

 

[Jenner]

How could you possibly know what amp service I have at my house and my electrician doesn't?

It's 200 amp which can have dozens of 100 amp sub panels as long as the total instant load doesn't exceed 80% of 200 amp which is 160.

 

[TaycanNut]

How could you possibly know what amp service I have at my house and my electrician doesn't?

It's 200 amp which can have dozens of 100 amp sub panels as long as the total instant load doesn't exceed 80% of 200 amp which is 160.

Yes I understand that, but if the car alone is drawing 100 amps, that leaves only 60 amps for the rest of the house while the car is charging. I brought it up because those of us who use a lot of electricity could have an issue if the car is drawing 100 amps. Might need to increase the main service to 300 amps.

 

[Skystorm]

Here in Sweden private houses has 3 x 16 amp and some bigger houses has 3 x 25 amp. Mine has 3 x 25 amp. I would install the power manager from Porsche to not blow the fuses.
At work we have 3 x 64 amp.. And yes we have 220volt system.. so if you compare with US with 110volt you must double the amps..

 

[Friedrich]

How could you possibly know what amp service I have at my house and my electrician doesn't?

It's 200 amp which can have dozens of 100 amp sub panels as long as the total instant load doesn't exceed 80% of 200 amp which is 160.

I would advise you to use a different electrician!! How much your home could theoretically draw is going to be dependent on the wire (incoming cable) from the power line. The thinner the cable, the less power you can draw. Your electrician should simply look at the incoming cable gauge and contact the power company about the transformer feeding your home and can tell you thoeoretically the largest size panel you can put in your home. If you draw too much power on a thin line, the wire heats up and is a fire hazard, so sizing the panel is crucial and only licensed electrician should do that. He can also literally measure the power draw of your sub panel, obviously only the draw at the moment he is measuring if he takes off the cover completely and there is access to the feeder cable. If he didn't know this, he is not a competent electrician.

Anyway, most newer homes in the USA are going to already have 150- 200amp panels. Your panel should clearly state the amperage when you open the door cover. It is not worthwhile for you to change your main panel unless you actually have a problem with the main breaker tripping Unless you have a 15,000 square foot house in the desert running the AC at 65f, I doubt you will have a problem, especially since you will be charging at night. The electrician merely needs to install a 220volt 40 or 50 amp breaker (depending on the charger you buy), which will take two of the 110v 20amp breaker slots.

I live in a highrise condo, so its VERY complicated to get a charger so will be charging at work. My sister and brother in law used my electrician who charged them $200 to install a charging station in their garage with my brother in law buying the breaker, cable and a $500 charger for their Nissan Leaf. Took the electrician less than 2 hours to complete the installation as the breaker panel was directly next to the garage. So total cost of charger plus installation was less than $800

 

[Jenner]

Stick to your condo and your own electrician.
I don't need an internet electrician who has no knowledge of my house or its electrical system and I doubt you are certified either!

Sponsored