Why 150 kw charger?

[muppet77]

Silly Question - why do some motorway chargers advertise themselves as 150kw when you can’t even get close to that speed? Are there vehicles that can..?

 

[Oberoy]

Silly Question - why do some motorway chargers advertise themselves as 150kw when you can’t even get close to that speed? Are there vehicles that can..?

Yes the MG4 LR/Trophy for instance can get to 140kw. Other cars are capable of more e.g. Taycan will peak at 270kw.
The advertised speed of the charger is the max it can output many other factors may limit the charge recieved.

 

[Jomarkh]

Is it 150kW at 800v? Most MG'S are 400v so won't get the same charge rate.

 

[Oberoy]

The MG 4 specs state 130kw max, many have experienced it taking 140kw from the chargers. The MG4 is 400v architecture.

 

[Cocijo]

They want to justify the extra cost…

 

[Oberoy]

Not quite sure what you mean, by "they want to justify the extra cost".
Having very high charge speeds overcomes one of the challenges people have with EVs.
On the MG4 140kw DC charging is useful on long journeys where a charge is needed. 10-80% in around 30min.

 

[Cocijo]

They charge more per KwHr on ultra fast chargers

 

[Cocijo]

This is fairly ‘old’ now given how fast prices are moving, but it provides the structure of paying more for ultra fast charging (regardless if you achieve the speed with your car or not)

Public rapid electric vehicle charging costs rise 42% in four months

Ultra-rapid average charging prices up 25% since May

media.rac.co.uk

 

[Oberoy]

They charge more per KwHr on ultra fast chargers

Ahh I get you, yes the cost per unit is high, and I would agree that these are high in comparison to home charging. They aren't cheap to install and subject to the same price protection we get on domestic as I understand though.