You have to consider that the amount of power needed is the same, it is just delivered quicker for the individual car.
But spread among thousands of cars it all evens out, making the power delivery required mostly the same.
Slower charging just means more cars are charging at the same time, and 50 cars charging at a lower rate is the same as 10 cars charging 5 times as fast, but also only a fifth of the time.
So for the network it’s the same, it’s only for the individual charger that there’s a real difference.
No, it’s most definitely not the same for the network. The sizing of everything in electrical infrastructure - generators, transformers, cables, protection devices - is bound to the current going through them. When you deliver the same energy in a much quicker time, you can only do so by increasing the current. Which means that, unless people are charging in low demand hours (e.g. at night), your infrastructure will either buckle or “shed loads”. Load shedding is when a circuit is dropped to prevent the overall network to brownout. Better not place the chargers in the same circuit as hospital and homes for the elderly!
False, the chargers have transformers, and I bet charging stations with 20+ chargers have local transformer stations too.
For one transformer station to supply for instance 12 chargers at 100 amps each or 4 at 300 amps each is both 1200 amps.
When you deliver the same energy in a much quicker time
You obviously completely failed to understand my explanation that this is not what is happening on the scale of charging stations with many available charging slots.
Obviously these 1,5 MWh charging stations will not be availbale at you local grocery store, they are part of bigger installations with probably already around 20 charging slots of 300-400 kWh charging capacity.
That’s a very different issue, that would be caused by the increasing number of EV. And that issue would be the same with or without faster charging.
Without the faster charging, obviously more stations are needed.
As I already stated, the charging speed has very little impact on the cumulative load on the grid.
It’s not exactly the same. Space where you put charging stations is usually limited. With higher power chargers, the entire charging infrastructure will require more power. Which means “thicker” cables. Sure, globally the power requirement are the same.
You have to consider that the amount of power needed is the same, it is just delivered quicker for the individual car.
But spread among thousands of cars it all evens out, making the power delivery required mostly the same.
Slower charging just means more cars are charging at the same time, and 50 cars charging at a lower rate is the same as 10 cars charging 5 times as fast, but also only a fifth of the time.
So for the network it’s the same, it’s only for the individual charger that there’s a real difference.
No, it’s most definitely not the same for the network. The sizing of everything in electrical infrastructure - generators, transformers, cables, protection devices - is bound to the current going through them. When you deliver the same energy in a much quicker time, you can only do so by increasing the current. Which means that, unless people are charging in low demand hours (e.g. at night), your infrastructure will either buckle or “shed loads”. Load shedding is when a circuit is dropped to prevent the overall network to brownout. Better not place the chargers in the same circuit as hospital and homes for the elderly!
False, the chargers have transformers, and I bet charging stations with 20+ chargers have local transformer stations too.
For one transformer station to supply for instance 12 chargers at 100 amps each or 4 at 300 amps each is both 1200 amps.
You obviously completely failed to understand my explanation that this is not what is happening on the scale of charging stations with many available charging slots.
Obviously these 1,5 MWh charging stations will not be availbale at you local grocery store, they are part of bigger installations with probably already around 20 charging slots of 300-400 kWh charging capacity.
I’d assume charging stations number is the same with some or all at higher power. But yes, reducing the number would solve power demand.
That’s a very different issue, that would be caused by the increasing number of EV. And that issue would be the same with or without faster charging.
Without the faster charging, obviously more stations are needed.
As I already stated, the charging speed has very little impact on the cumulative load on the grid.
It’s not exactly the same. Space where you put charging stations is usually limited. With higher power chargers, the entire charging infrastructure will require more power. Which means “thicker” cables. Sure, globally the power requirement are the same.