Does anyone know how to access the "High Amperage Charging" option in the design page? It is a $1000 option but it is hard to access -
http://gas2.org/2015/11/27/tesla-hides-model-x-high-power-charger-option/ I'm ready to order except for that 1 option. Thanks
Comments
An onboard charger is a AC-to-DC charger.
Internalized AC-to-DC charger is slower than externalized DC-to-DC Supercharger.
The question is how much slower do you to your charger to be?
If you want it to be real slow, then equip your home with a 120V socket. It will take about three days to charge your battery in summer.
If you want it to be as fast as it can then equip your home with a 240V 100A circuit for your HPWC and your higher capability onboard charger.
Now why anyone in their right mind want to install a HPWC with 240V and 100A circuit for higher capability onboard charger?
Of course if you have all the luxury of time then choose a slower rate of time.
Suppose you forgot to charge your car last night, and now you need to charge your car before you go to work.
$1,000 means it's a 30 minute late for work or 1 hour late for work.
It could mean 1 hour late for work or 2 hours late for work to wait for enough charge.
The same principle: when you got home and you need to attend a function but so it's a difference of waiting for 30 minute late for work or 1 hour late for work...
Choosing a no additional fee onboard charger may mean you have to pay higher electrical rate due to prolonged charging into more expensive time.
Paying $1,000 for faster charge may mean you never have to pay a higher electrical rate because it is twice quicker than the barebone charger option.
Please, everyone, purchase your vehicle with the 72 amp charger option. You will not regret the decision. You will, however, probably receive your vehicle at a later date since the 72 amp charger appears to be back ordered.
I'd be interested to see the math. At the higher rates, how long until you break even on that $1000? Here in Seattle we have no differential rate structure. I have my theories about the answer, but I don't know.
From
<a href="https://www.sce.com/wps/portal/home/residential/electric-cars/rates-charging-options/EV-Rate-Assistant/ev_rateassistant/!ut/p/b1/tVTbVuIwFP0VffAxq6e5NXksytQWARFE6AsrTVPsDBSkXa7Rr5_U5YxSRoG59CnJ2Wf37HNzYmfixIV6zOeqyleFWtT3mM-i8MJ3A4pDce5z8MXA56wzwOcCW8DUAuCDz4cXfxlA-zLqQxiMBgRCMoDe0PcJAHfunNiJdVGtq3tnWmoz06uiMkU1M8UZvJ7PYGPKPLWnXC3OwCyMrja5RlptSmtTlSmRvlebeV7M0Wpdh27fzeOsNqmyzMtK1SzNl_rXa52nzlQYJQgWAknXCEQxU0joLEUcqOtxKrAi7FXqJ1pqqa4I_MtwaM03HoYwGrev-i0Xw69UfQLY9r8d-RC2LlruZTcE6NEd_x3Alr8YBW1r7oAcX2My5KTpvwvYU-qXUu0p9r5yx58FST2vCfhNkvbJnFqZ3hsAvIhZgN_xWu6YhL7rDN_qzr0sNcZIpJghiCaaIimwRlh6UrtGKpXSJmEwojUh9kjQCgl02NGE0QGdkn99eIh9Oxr1CHyvnMkhs7ET6naLfNkKNfE44QlLkOIJIAo2VJUyiQjLPKW4dtOM7iPERxNGB3T5H2nf2Qs_ryf19eQd8uRlY7xK-6jf-_y9tIP2Q4MQuoElbAMMiZ2Aq4vjCaMDli_edM-7c0urqnuUF9nKmeysuX-W0r9YtY1Gaoxte6uRiPQYMKEQzrgdIpq4SCmmUSYloRI44wo3CfvX9RC1_OgGpLT9RI4mjA7Yn_8zjc56ebsU5CnPc_Ttpp31ekgl4ok8j7LlctatBBC2fny-Mnf1u70s5qenPwAkaBvf/dl4/d5/L2dBISEvZ0FBIS9nQSEh/">
SCE.com</a>
Comparing charging without Off-Peak discount and the one with it for an EV that drives 20,000 miles per year:
$4,128 - 2,904 means a saving of $1,224 which is cheaper than paying $1,000 high amperage charger option.
<img src="http://i.imgur.com/bkKXNO8.jpg" width="640"/>
You would still have the off-peak discount for most of your charging, it's just that <b>some</b> of your charging happens outside the off-peak window. Charging at 48A instead of 72A increases charging time by 50% (or you could say that charging at 72A instead of 48A reduces your charging time by 33.33%). With a 48A charger, you would use less power during the off-peak window (reducing your off-peak charges), and then add some charging time at the household rate.
So it really depends on how long the off-peak window is, how much charge you need every night, and the off-peak and regular price of power..
But I could also point out that if you are driving a daily commute of 54 miles (20k miles a year) that you can probably still manage to charge that during the off peak window using Tesla software. It's not like you are trying to fit in a full 90kwH charge every night unless you're driving 90k miles a year.
I could grant you that yes, I suppose the higher amp charger would let you wait more days between charging and then still theoretically fit in all your charging in one night during the low cost window. But I feel like I'm trying to create a scenario where the high amp charger is "necessary" rather than looking at reality. Part of the charm of charging at home is plugging it in every night and having the battery ready to roll every morning.
'High Amperage Charger Upgrade
Take advantage of high amperage power sources by equipping your Model X with a 72 amp onboard charger. This upgrade will only reduce charge times when connected to power sources over 48 amps. Charge rates when connected to 110 volt outlets, 220 volt outlets or Tesla Superchargers will be unaffected."
I know it does not affect Superchargers. What does "charge rates when connected to 110 volt outlets, 220 volt outlets..." mean? If I (in my next house) install a 220V 100A outlet, will it charge faster than on my current (ha!) 220V 50A outlet?
Thanks for pointing out such a confusing statement.
I think they mean: for the 240V, if your electrical source can only supply 48A and below, the faster charging rates are not any faster than a standard issued 48A charger even if you pay $1,000 extra for the higher amperage 72A charger.
THEN your charge rate will be 1/3 faster (but not really, due to charge tapering as the battery nears full).
She is correct for the combination of 72A charger and standard HPWC set up.
Mobile connector can connect your power source to supply a maximum of 40A.
HPWC is hardwired from the wall to supply a maximum of 80A but if your car can take a maximum of 80A if it's a Model S, 72A if it's Model X (if maximally so equipped onboard.)
"You will, however, probably receive your vehicle at a later date since the 72 amp charger appears to be back ordered."
Where di you see or hear this? I have seen nothing on the forums and the Tesla config page does not say anything about it causing a delay (they have noted it on other options in the past).
Of course...he could be wrong. But that's what I was told. I wasn't going to get the 72A because I think it will be 1) largely useless to me and 2) I was worried it might delay delivery. I'm now considering MAYBE just getting it since it's not terribly pricey as a future proofing. But still on the fence. I have 12 hours to make my decision before it's finalized.