dbsb3233

Well-Known Member
First Name
TimCO
Joined
Dec 30, 2019
Threads
54
Messages
9,297
Reaction score
10,812
Location
Colorado, USA
Vehicles
2021 Mustang Mach-E FE, 2023 Bronco Sport OB
Occupation
Retired
Country flag
What you're missing is that there is no penalty other than TIME IDLE to go up to 100% instead of 80%.

The assertion is that someone with a MME at 10% SOC stops at the charger across the street from a nice restaurant in the middle of a long trip. Said person want s a nice sitdown meal that could take an hour. SO, said person sets the "finish" charge % to 100% and goes into the restaurant. Finally, an hour later they come out of the restaurant and their MME is just hitting 100%, so no idle fees and now the car has a more of a charge to make the next stop go faster. In the meantime, that charger was in use for an hour or more instead of the customary 30-45 minutes
Exactly. And in such a scenario, the odds of people dipping into that 10 minute grace period go up a lot too. When it was increasingly expensive to add those last 20 kWh, people were much more likely to stop short. But now there's greater chance of them going all the way to 100% + into the 10 minute grace period beyond (if they're able to fill that time with something useful like a sit-down meal, the bar, shopping, etc).

It'll be even more interesting to see the charge curve now, and how long it takes to go from 80% to 100% where the charger shuts off and the 10-min grace period starts. Hopefully that doesn't drag out too long because that could really tie up chargers longer.

Not saying this will happen on half of all refuelings, of course, but at the margin, we could see some longer waits to get on one.
Sponsored

 

timbop

Well-Known Member
First Name
Tim
Joined
Jan 3, 2020
Threads
63
Messages
6,729
Reaction score
13,758
Location
New Jersey
Vehicles
Solar powered 2021 MME ER RWD & 2022 Corsair PHEV
Occupation
Software Engineer
Country flag
Would charging stations even know your vehicle's SoC? I kind of doubt it. I think they will have an idle charge like Tesla. Maybe they will have a tiered system where after 50 kWh it will increase the price per kWh, but I doubt that as well.
You set the percent to charge up to in the car. As long as the car is still taking a small charge (10 kw), no idle fees - because it is not idle.
 

dbsb3233

Well-Known Member
First Name
TimCO
Joined
Dec 30, 2019
Threads
54
Messages
9,297
Reaction score
10,812
Location
Colorado, USA
Vehicles
2021 Mustang Mach-E FE, 2023 Bronco Sport OB
Occupation
Retired
Country flag
Would charging stations even know your vehicle's SoC? I kind of doubt it. I think they will have an idle charge like Tesla. Maybe they will have a tiered system where after 50 kWh it will increase the price per kWh, but I doubt that as well.
It may not know your actual SOC below 100% (not sure), but it knows when the car says it's at 100% and tells the charger to stop charging. And EA has an idle charge that kicks in 10 minutes after that point:

Idle Fee: Once charging stops, you pay 0.40 /min after a 10 minute grace period.

https://www.electrifyamerica.com/pricing/
 

timbop

Well-Known Member
First Name
Tim
Joined
Jan 3, 2020
Threads
63
Messages
6,729
Reaction score
13,758
Location
New Jersey
Vehicles
Solar powered 2021 MME ER RWD & 2022 Corsair PHEV
Occupation
Software Engineer
Country flag
I'm glad you aren't running EA.

Given that there is now an emphasis on >=150kw charging withe newer cars, I don't think there's going to be a huge issue with hogging chargers.
 

dbsb3233

Well-Known Member
First Name
TimCO
Joined
Dec 30, 2019
Threads
54
Messages
9,297
Reaction score
10,812
Location
Colorado, USA
Vehicles
2021 Mustang Mach-E FE, 2023 Bronco Sport OB
Occupation
Retired
Country flag
All this just reiterates that the phone apps better have good charging status monitoring and alarms. It's needs to (strongly) remind people to get back to their car within X minutes as their car starts getting near full, to free up that charger for the next guy.
 


hybrid2bev

Well-Known Member
Joined
Dec 4, 2019
Threads
75
Messages
4,070
Reaction score
11,091
Location
USA
Vehicles
2021 Job 1 Premium4X - EAP Member
Country flag
It may not know your actual SOC below 100% (not sure), but it knows when the car says it's at 100% and tells the charger to stop charging. And EA has an idle charge that kicks in 10 minutes after that point:

Idle Fee: Once charging stops, you pay 0.40 /min after a 10 minute grace period.

https://www.electrifyamerica.com/pricing/
The charger does a handshake with your vehicle so it can know what the state of charge is. Here is a screenshot of an EA charging session, the green bar is the SOC.


Ford Mustang Mach-E Electrify America kWh Pricing Announced 46EEE727-7349-41B2-A147-09675671ECCB

see time stamp 11:34

 

Yoliber

Well-Known Member
Joined
Aug 21, 2020
Threads
3
Messages
92
Reaction score
77
Location
Irvine, CA
Vehicles
TM3 SR+
Country flag
You set the percent to charge up to in the car. As long as the car is still taking a small charge (10 kw), no idle fees - because it is not idle.
I get that, I thought you were saying there should be an additional fee from 80-100%
 

timbop

Well-Known Member
First Name
Tim
Joined
Jan 3, 2020
Threads
63
Messages
6,729
Reaction score
13,758
Location
New Jersey
Vehicles
Solar powered 2021 MME ER RWD & 2022 Corsair PHEV
Occupation
Software Engineer
Country flag
I get that, I thought you were saying there should be an additional fee from 80-100%
Oh, no not at all. I don't want that, and I don't think it is necessary. Others have suggested it, but I disagree.
 

timbop

Well-Known Member
First Name
Tim
Joined
Jan 3, 2020
Threads
63
Messages
6,729
Reaction score
13,758
Location
New Jersey
Vehicles
Solar powered 2021 MME ER RWD & 2022 Corsair PHEV
Occupation
Software Engineer
Country flag
Possibly, but as I've said I don't think it will be a general problem other than right at mealtimes, and then only if there is a sit down restaurant right where the charger is. People aren't going to sit for any longer than they have to at Wendy's or McDonalds, and there's only so much wandering around Walmart that you can do.

If it becomes a problem, then address the problem. Don't create an unnecessary solution in search of a problem, particularly since they've already announced the policy.
Sponsored

 
 




Top